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LExxAB LExxC
Very low drop voltage regulators with inhibit
Features

Very low dropout voltage (0.2 V typ) Very low quiescent current (typ. 50 A in OFF MODE, 0.5 mA in ON MODE, no load) Output current up to 100 mA Output voltages of 2.5; 2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 8 V Internal current and thermal limit Only 2.2 F for stability Available in 1 % (A) or 2 % (C) selection at 25 C Supply voltage rejection: 80 dB (typ.) Temperature range: -40 to 125 C
TO-92 SO-8
Description
The LExxAB and LExxC are very low drop voltage regulators available in SO-8 and TO-92 packages and in a wide range of output voltages. The very low drop voltage (0.2 V) and the very low quiescent current make them particularly suitable for low noise low power applications and specially in battery powered systems. They are pin to pin compatible with the older L78Lxx series. Furthermore in the 8 pin configuration (SO-8) they employ a shutdown logic control (pin 5, TTL compatible). This means that when the device is used as a local regulator,
it's possible to put in stand by a part of the board even more decreasing the total power consumption. In the three terminal configuration (TO-92) the device is even in ON STATE, maintaining the same electrical performances. It needs only 2.2 F capacitor for stability allowing room and cost saving effect.
Table 1.
Device summary
Part numbers LE25AB LE27AB LE30C LE33C LE33AB LE35C LE35AB LE40C LE45C LE45AB Rev 12 LE47AB LE50C LE50AB LE80C LE80AB 1/39
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July 2008
Contents
LExxAB LExxC
Contents
1 2 3 4 5 6 7 8 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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LExxAB LExxC
List of figures
List of figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view for SO-8, bottom view for TO-92) . . . . . . . . . . . . . . . . . . . . . . . . 6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Dropout voltage vs output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Supply current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Supply current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 SVR vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Logic controlled precision 3.3/5.0 V selectable output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Sequential multi-output supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Multiple supply with ON/OFF toggle switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Basic inhibit functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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List of tables
LExxAB LExxC
List of tables
Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics for LE12AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics for LE25AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics for LE25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics for LE27AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical characteristics for LE27C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics for LE30AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics for LE30C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics for LE33AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics for LE33C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics for LE35AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics for LE35C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics for LE40AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics for LE40C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical characteristics for LE45AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics for LE45C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Electrical characteristics for LE47AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Electrical characteristics for LE47C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Electrical characteristics for LE50AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Electrical characteristics for LE50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Electrical characteristics for LE80AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Electrical characteristics for LE80C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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LExxAB LExxC
Diagram
1
Figure 1.
Diagram
Block diagram
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Pin configuration
LExxAB LExxC
2
Figure 2.
Pin configuration
Pin connections (top view for SO-8, bottom view for TO-92)
PIN 1 = VOUT PIN 2 = GND PIN 3 = VIN SO-8 TO-92
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LExxAB LExxC
Maximum ratings
3
Table 2.
Maximum ratings
Absolute maximum ratings
Parameter DC input voltage Output current Power dissipation Storage temperature range Operating junction temperature range Value 20 Internally limited
(1)
Symbol VI IO PTOT TSTG TOP
Unit V
Internally limited -65 to 150 -40 to 125 C C
1. Our SO-8 package used for Voltage Regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the printed circuit board is available for heatsinking. The external dimensions are the same as for the standard SO-8.
Table 3.
Symbol RthJC RthJA
Thermal data
Parameter Thermal resistance junction-case Thermal resistance junction-ambient SO-8 20 55 200 TO-92 Unit C/W C/W
Figure 3.
Test circuit
Note:
If the Inhibit pin is left floating, the regulator is in ON mode. However, to avoid any noise picking-up, it is suggested to ground it when the Inhibit function is not used.
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Electrical characteristics
LExxAB LExxC
4
Table 4.
Symbol VO VI IO VO VO
Electrical characteristics
Electrical characteristics for LE12AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 2.5 to 18 V, IO = 0.5 mA VI = 2.8 V, IO = 0.5 to 100 mA VI = 2.5 to 18V, IO = 0mA Id Quiescent current VI = 2.5 to 18V, IO=100mA VI = 6 V OFF MODE f = 120 Hz SVR Supply voltage rejection IO = 5 mA, VI = 3.5 1 V f = 1 kHz f = 10 kHz eN Vd VIL VIH II CO Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance B = 10 Hz to 100 kHz IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA 2 2 10 10 ON MODE 1.5 50 82 77 60 50 1.25 0.8 V V V V A F dB 3 100 A Test conditions IO = 10 mA, VI = 3.3 V IO = 10 mA, VI = 3.3 V, TA = -25 to 85C IO = 100 mA Min. 1.225 1.2 2.5 150 3 3 0.5 15 15 1 mA Typ. 1.25 Max. 1.275 V 1.3 18 V mA mV mV Unit
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LExxAB LExxC Table 5.
Symbol VO VI IO VO VO
Electrical characteristics
Electrical characteristics for LE25AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 3.2 to 18 V, IO = 0.5 mA VI = 3.5 V, IO = 0.5 to 100 mA VI = 3.5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 82 77 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 4.5 V IO = 10 mA, VI = 4.5 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 15 15 1 mA Min. 2.475 2.45 Typ. 2.5 Max. 2.525 V 2.55 18 V mA mV mV Unit
Id
Quiescent current
VI = 3.5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 4.5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 6.
Symbol VO VI IO VO VO
Electrical characteristics for LE25C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 3.2 to 18 V, IO = 0.5 mA VI = 3.5 V, IO = 0.5 to 100 mA VI = 3.5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 82 77 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 4.5 V IO = 10 mA, VI = 4.5 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 20 25 1 mA Min. 2.45 2.4 Typ. 2.5 Max. 2.55 V 2.6 18 V mA mV mV Unit
Id
Quiescent current
VI = 3.5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 4.5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 7.
Symbol VO VI IO VO VO
Electrical characteristics for LE27AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 3.4 to 18 V, IO = 0.5 mA VI = 3.7 V, IO = 0.5 to 100 mA VI = 3.7 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 82 77 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 4.7 V IO = 10 mA, VI = 4.7 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 15 15 1 mA Min. 2.673 2.646 Typ. 2.7 Max. 2.727 V 2.754 18 V mA mV mV Unit
Id
Quiescent current
VI = 3.7 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 4.7 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 8.
Symbol VO VI IO VO VO
Electrical characteristics for LE27C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 3.4 to 18 V, IO = 0.5 mA VI = 3.7 V, IO = 0.5 to 100 mA VI = 3.7 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 82 77 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 4.7 V IO = 10 mA, VI = 4.7 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 20 25 1 mA Min. 2.646 2.592 Typ. 2.7 Max. 2.754 V 2.808 18 V mA mV mV Unit
Id
Quiescent current
VI = 3.7 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 4.7 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 9.
Symbol VO VI IO VO VO
Electrical characteristics for LE30AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 3.7 to 18 V, IO = 0.5 mA VI = 4 V, IO = 0.5 to 100 mA VI = 4 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 81 76 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 5 V IO = 10 mA, VI = 5 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 15 15 1 mA Min. 2.970 2.940 Typ. 3 Max. 3.030 V 3.060 18 V mA mV mV Unit
Id
Quiescent current
VI = 4 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 10.
Symbol VO VI IO VO VO
Electrical characteristics for LE30C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 3.7 to 18 V, IO = 0.5 mA VI = 4 V, IO = 0.5 to 100 mA VI = 4 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 81 76 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 5 V IO = 10 mA, VI = 5 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 20 25 1 mA Min. 2.940 2.880 Typ. 3 Max. 3.060 V 3.120 18 V mA mV mV Unit
Id
Quiescent current
VI = 4 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 5 1 V
f = 1kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 11.
Symbol VO VI IO VO VO
Electrical characteristics for LE33AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 4 to 18 V, IO = 0.5 mA VI = 4.3 V, IO = 0.5 to 100 mA VI = 4.3 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 80 75 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 5.3 V IO = 10 mA, VI = 5.3 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 15 15 1 mA Min. 3.267 3.234 Typ. 3.3 Max. 3.333 V 3.366 18 V mA mV mV Unit
Id
Quiescent current
VI = 4.3 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 5.3 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 12.
Symbol VO VI IO VO VO
Electrical characteristics for LE33C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 4 to 18 V, IO = 0.5 mA VI = 4.3 V, IO = 0.5 to 100 mA VI = 4.3 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 80 75 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 5.3 V IO = 10 mA, VI = 5.3 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 20 25 1 mA Min. 3.234 3.168 Typ. 3.3 Max. 3.366 V 3.432 18 V mA mV mV Unit
Id
Quiescent current
VI = 4.3 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 5.3 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 13.
Symbol VO VI IO VO VO
Electrical characteristics for LE35AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 4.2 to 18 V, IO = 0.5 mA VI = 4.5 V, IO = 0.5 to 100 mA VI = 4.5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 79 74 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 5.5 V IO = 10 mA, VI = 5.5 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 15 15 1 mA Min. 3.465 3.43 Typ. 3.5 Max. 3.535 V 3.57 18 V mA mV mV Unit
Id
Quiescent current
VI = 4.5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 5.5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 14.
Symbol VO VI IO VO VO
Electrical characteristics for LE35C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 4.2 to 18 V, IO = 0.5 mA VI = 4.5 V, IO = 0.5 to 100 mA VI = 4.5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 79 74 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 5.5 V IO = 10 mA, VI = 5.5 V, TA = -25 to 85C IO = 100 mA 150 3 3 0.5 20 25 1 mA Min. 3.43 3.36 Typ. 3.5 Max. 3.57 V 3.64 18 V mA mV mV Unit
Id
Quiescent current
VI = 4.5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 5.5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 15.
Symbol VO VI IO VO VO
Electrical characteristics for LE40AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 4.7 to 18 V, IO = 0.5 mA VI = 5 V, IO = 0.5 to 100 mA VI = 5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 78 73 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 6 V IO = 10 mA, VI = 6 V, TA = -25 to 85C IO = 100 mA 150 4 3 0.5 20 15 1 mA Min. 3.96 3.92 Typ. 4 Max. 4.04 V 4.08 18 V mA mV mV Unit
Id
Quiescent current
VI = 5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 6 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 16.
Symbol VO VI IO VO VO
Electrical characteristics for LE40C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 4.7 to 18 V, IO = 0.5 mA VI = 5 V, IO = 0.5 to 100 mA VI = 5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 78 73 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 6 V IO = 10 mA, VI = 6 V, TA = -25 to 85C IO = 100 mA 150 4 3 0.5 30 25 1 mA Min. 3.92 3.84 Typ. 4 Max. 4.08 V 4.16 18 V mA mV mV Unit
Id
Quiescent current
VI = 5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 6 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 17.
Symbol VO VI IO VO VO
Electrical characteristics for LE45AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 5.2 to 18 V, IO = 0.5 mA VI = 5.5 V, IO = 0.5 to 100 mA VI = 5.5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 77 72 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 6.5 V IO = 10 mA, VI = 6.5 V, TA = -25 to 85C IO = 100 mA 150 4 3 0.5 20 15 1 mA Min. 4.445 4.41 Typ. 4.5 Max. 4.545 V 4.59 18 V mA mV mV Unit
Id
Quiescent current
VI = 5.5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 6.5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 18.
Symbol VO VI IO VO VO
Electrical characteristics for LE45C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 5.2 to 18 V, IO = 0.5 mA VI = 5.5 V, IO = 0.5 to 100 mA VI = 5.5 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 77 72 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 6.5 V IO = 10 mA, VI = 6.5 V, TA = -25 to 85C IO = 100 mA 150 4 3 0.5 30 25 1 mA Min. 4.41 4.32 Typ. 4.5 Max. 4.59 V 4.68 18 V mA mV mV Unit
Id
Quiescent current
VI = 5.5 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 6.5 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 19.
Symbol VO VI IO VO VO
Electrical characteristics for LE47AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 5.4 to 18 V, IO = 0.5 mA VI = 5.7 V, IO = 0.5 to 100 mA VI = 5.7 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 77 72 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 6.7 V IO = 10 mA, VI = 6.7 V, TA = -25 to 85C IO = 100 mA 150 4 3 0.5 20 15 1 mA Min. 4.653 4.606 Typ. 4.7 Max. 4.747 V 4.794 18 V mA mV mV Unit
Id
Quiescent current
VI = 5.7 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 6.7 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 20.
Symbol VO VI IO VO VO
Electrical characteristics for LE47C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 5.4 to 18 V, IO = 0.5 mA VI = 5.7 V, IO = 0.5 to 100 mA VI = 5.7 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 77 72 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 6.7 V IO = 10 mA, VI = 6.7 V, TA = -25 to 85C IO = 100 mA 150 4 3 0.5 30 25 1 mA Min. 4.606 4.512 Typ. 4.7 Max. 4.794 V 4.888 18 V mA mV mV Unit
Id
Quiescent current
VI = 5.7 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 6.7 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 21.
Symbol VO VI IO VO VO
Electrical characteristics for LE50AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 5.7 to 18 V, IO = 0.5 mA VI = 6 V, IO = 0.5 to 100 mA VI = 6 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 76 71 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 7 V IO = 10 mA, VI = 7 V, TA = -25 to 85C IO = 100 mA 150 350 4 3 0.5 Min. 4.95 4.9 Typ. 5 Max. 5.05 V 5.1 18 425 20 15 1 mA V mA mV mV Unit
Id
Quiescent current
VI = 6 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 7 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics
LExxAB LExxC
Table 22.
Symbol VO VI IO VO VO
Electrical characteristics for LE50C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 5.7 to 18 V, IO = 0.5 mA VI = 6 V, IO = 0.5 to 100 mA VI = 6 to 18V, IO = 0mA ON MODE 1.5 OFF MODE f = 120 Hz 50 76 71 60 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3 100 A Test conditions IO = 10 mA, VI = 7 V IO = 10 mA, VI = 7 V, TA = -25 to 85C IO = 100 mA 150 350 4 3 0.5 Min. 4.9 4.8 Typ. 5 Max. 5.1 V 5.2 18 425 30 25 1 mA V mA mV mV Unit
Id
Quiescent current
VI = 6 to 18V, IO=100mA VI = 6 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 7 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Electrical characteristics
Table 23.
Symbol VO VI IO VO VO
Electrical characteristics for LE80AB (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 8.7 to 18 V, IO = 0.5 mA VI = 9 V, IO = 0.5 to 100 mA VI = 9 to 18V, IO = 0mA ON MODE 1.7 OFF MODE f = 120 Hz 70 72 66 57 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3.6 140 A Test conditions IO = 10 mA, VI = 10 V IO = 10 mA, VI = 10 V, TA = -25 to 85C IO = 100 mA 150 5 3 0.7 25 15 1.6 mA Min. 7.92 7.84 Typ. 8 Max. 8.08 V 8.16 18 V mA mV mV Unit
Id
Quiescent current
VI = 9 to 18V, IO=100mA VI = 9 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 10 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 9 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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Electrical characteristics Table 24.
Symbol VO VI IO VO VO
LExxAB LExxC
Electrical characteristics for LE80C (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.)
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation VI = 8.7 to 18 V, IO = 0.5 mA VI = 9 V, IO = 0.5 to 100 mA VI = 9 to 18V, IO = 0mA ON MODE 1.7 OFF MODE f = 120 Hz 70 72 66 57 50 0.2 0.4 V 0.5 0.8 2 10 2 10 V V A F V dB 3.6 140 A Test conditions IO = 10 mA, VI = 10 V IO = 10 mA, VI = 10 V, TA = -25 to 85C IO = 100 mA 150 5 3 0.7 35 25 1.6 mA Min. 7.84 7.68 Typ. 8 Max. 8.16 V 8.32 18 V mA mV mV Unit
Id
Quiescent current
VI = 9 to 18V, IO=100mA VI = 9 V
SVR
Supply voltage rejection
IO = 5 mA, VI = 10 1 V
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control input logic high Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 100 mA IO = 100 mA, TA = -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 9 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 100 mA
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LExxAB LExxC
Typical performance characteristics
5
Figure 4.
Typical performance characteristics
(unless otherwise specified VO(NOM) = 3.3 V) Dropout voltage vs output current Figure 5. Dropout voltage vs temperature
Figure 6.
Supply current vs temperature
Figure 7.
Supply current vs input voltage
Figure 8.
Short circuit current vs dropout voltage
Figure 9.
SVR vs frequency
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Typical performance characteristics
LExxAB LExxC
Figure 10. Logic controlled precision 3.3/5.0 V selectable output
Figure 11. Sequential multi-output supply
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LExxAB LExxC
Typical performance characteristics
Figure 12. Multiple supply with ON/OFF toggle switch
Figure 13. Basic inhibit functions
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Package mechanical data
LExxAB LExxC
6
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
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LExxAB LExxC
Package mechanical data
SO-8 mechanical data
Dim. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. Min. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 8 (max.) 0.04 0.228 0.010 0.016 Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 Min. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch. Typ. Max. 0.069 0.010 0.065 0.020 0.010 0.197 0.157
0016023/C
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Package mechanical data
LExxAB LExxC
TO-92 mechanical data
mm. Dim. Min. A b D E e e1 L R S1 W 4.32 0.36 4.45 3.30 2.41 1.14 12.7 2.16 0.92 0.41 5 Typ. Max. 4.95 0.51 4.95 3.94 2.67 1.40 15.49 2.41 1.52 0.56 Min. 170.1 14.2 175.2 129.9 94.9 44.9 500.0 85.0 36.2 16.1 5 Typ. Max. 194.9 20.1 194.9 155.1 105.1 55.1 609.8 94.9 59.8 22.0 mils.
0102782/D
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LExxAB LExxC
Package mechanical data
Tape & reel SO-8 mechanical data
mm. Dim. Min. A C D N T Ao Bo Ko Po P 8.1 5.5 2.1 3.9 7.9 12.8 20.2 60 22.4 8.5 5.9 2.3 4.1 8.1 0.319 0.216 0.082 0.153 0.311 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.335 0.232 0.090 0.161 0.319 Min. Typ. Max. 12.992 0.519 inch.
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Package mechanical data
LExxAB LExxC
Tape & reel for TO-92 mechanical data
Dim. A1 T T1 T2 d P0 P2 F1, F2 delta H W W0 W1 W2 H H0 H1 D0 t L1 delta P u 1 2 mm. Min. Typ. 4.80 3.80 1.60 2.30 0.48 12.5 5.65 2.44 17.5 5.7 8.5 12.9 7.05 2.94 19.0 6.3 9.25 18.70 16.50 4.2 0.90 3 1 50 360 30
delta P A1 H1 H H0 L l1 W0 W W1 F1 F2 P2 P0 d W2 delta H T2
inch. Max. Min. Typ. 0.189 0.150 0.063 0.091 0.019 0.492 0.222 0.096 0.689 0.224 0.335 0.508 0.278 0.116 0.748 0.248 0.364 0.726 0.650 0.165 0.035 0.118 0.039 1.968 14.173 1.181
T T1
Max.
2.54 2 18.00
0.100 0.079 0.709
0.50 18.50 15.50 25.00 3.8
0.20 0.728 0.610 0.984 0.150
D0
t
DRAWING NOT IN SCALE
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LExxAB LExxC
Order codes
7
Table 25.
Order codes
Order codes
Packages SO-8 SO-8 (T&R) LE12ABD-TR LE25ABD LE27ABD(1) LE27CD(1) LE30ABD-TR(1) LE30CD-TR LE33ABZ LE33CD-TR LE35ABD-TR(1) LE35CD(1) LE35CD-TR(1) LE40ABD-TR(1) LE40CD-TR(1) LE40ABZ(1) LE40CZ LE33CZ LE35ABZ(1) LE30ABZ-TR LE30CZ-TR LE33ABZ-TR(1) LE33CZ-TR LE35ABZ-TR(1) LE35CZ-TR(1) LE40ABZ-TR(1) LE40CZ-TR(1) LE33ABZ-AP(1) LE33CZ-AP LE35ABZ-AP(1) LE35CZ-AP(1) LE40ABZ-AP(1) LE40CZ-AP(1) LE45ABZ-AP(1) LE45CD-TR LE47ABD(1) LE47ABD-TR(1) LE47CD-TR(1) LE50ABD-TR LE50CD-TR LE47CZ(1) LE50ABZ LE50CZ LE47ABZ-TR(1) LE47CZ-TR(1) LE50ABZ-TR LE50CZ-TR LE80ABZ-TR(1) LE80CD-TR LE80CZ-TR(1) LE45CZ-AP(1) LE47ABZ-AP(1) LE47CZ-AP(1) LE50ABZ-AP LE50CZ-AP
(1)
TO-92
TO-92 (T&R)
TO-92 (Ammopak)
Output voltage 1.25 V
LE25ABD-TR(1) LE25CD-TR(1) LE27ABD-TR(1) LE25CZ-TR(1)
LE25ABZ-AP
(1)
2.5 V 2.5 V 2.7 V 2.7 V 3V 3V 3.3 V 3.3 V 3.5 V 3.5 V 4V 4V 4.5 V 4.5 V 4.7 V 4.7 V 5V 5V 8V 8V
LE25CZ-AP(1)
1. Available on request.
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Revision history
LExxAB LExxC
8
Table 26.
Date
Revision history
Document revision history
Revision 6 7 8 9 10 11 12 Changes IO typ. and max. are changed in tab. 24 and 25 - pag. 14. Add Tape & Reel for TO-92 - Note on Table 3. Change value TOP on Table 2. Add Table 1 in cover page. Modified: Table 25. Modified: Table 25 on page 37. Modified: Table 1 on page 1 and Table 25 on page 37.
09-Jul-2004 16-Mar-2005 12-Feb-2007 26-Jul-2007 29-Nov-2007 12-Feb-2008 10-Jul-2008
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LExxAB LExxC
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