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UNISONIC TECHNOLOGIES CO., LTD L3383
PFM CONTROLLED, STEP-UP DC/DC CONVERTERS (VARIABLE DUTY RATIO)
DESCRIPTION
The UTC L3383 Series are PFM step-up DC/DC switching converter. The UTC L3383 can support both large and small currents. It automatically switches duty ratio (45%/75%) when it senses changes in load. Both built-in and external transistor types include 5-pin and 3-pin packages, which are provided with either a CE (chip enable) function that reduces power consumption during shut-down mode, or a VDD pin function (separated power and voltage detect pins).
1 1
CMOS IC
3
2
5 4
SOT-25
SOT-89
FEATURES
* Output voltage range: 2.0V~7.0V in 0.1V increments * Operating (start-up) voltage range: 0.9V~10V * Highly accurate: Set-up voltage 2.5% * Maximum oscillator frequency (Max Fosc1): 180kHz (15%) * Variable Duty Ratio: 45%/75% (5%) * Both switching transistor built-in and external types are available * 5-lead package offer Chip Enable or independent VOUT pin option.
*Pb-free plating product number: L3383L
ORDERING INFORMATION
Order Number Normal Lead Free Plating L3383-xx-AB3-R L3383L-xx-AB3-R L3383-xx-AF5-R L3383L-xx-AF5-R Package SOT-89 SOT-25 1 G E Pin Assignment 23 4 5 O I ON G I Packing Tape Reel Tape Reel
Note: Pin Assignment: I:VIN O:VOUT G:GND N: No Connection E: Chip Enable xx: Output Voltage, refer to Marking Information.
L3383L-xx-AB3-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating (1) R: Tape Reel (2) AB3: SOT-89, AF5: SOT-25 (3) xx: refer to Marking Information (4) L: Lead Free Plating, Blank: Pb/Sn
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1 of 14
QW-R502-032,E
L3383
MARKING INFORMATION
PACKAGE VOLTAGE CODE 20:2.0V 25:2.5V 26:2.6V 27:2.7V 28:2.8V 30:3.0V 31:3.1V 32:3.2V 33:3.3V 36:3.6V 37:3.7V 40:4.0V 45:4.5V 50:5.0V MARKING
CMOS IC
3
2
1
SOT-25
H3
VOLTAGE CODE
4
5
VOLTAGE CODE
SOT-89
DATE CODE
L3383 1 2 3
PIN DESCRIPTION
PIN NO. SOT-25 SOT-89 1 2 2 3 4 1 5 3 PIN NAME CE VOUT NC VSS Lx FUNCTION Chip Enable Output voltage monitor, IC internal power supply No Connection Ground Switch
BLOCK DIAGRAM
UTC L3383 (VDD is internally connected to the VOUT pin.) VDD Lx Buffer Vss 2step PFM Control OSC 100/180 kHz + + ~5mV VLx limiter VREF VOUT
Chip Enable
CE Note: The CE pin is only used with the 5-Lead Package.
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2 of 14
QW-R502-032,E
L3383
ABSOLUTE MAXIMUM RATINGS
PARAMETER VOUT Input Voltage Lx pin Voltage CE Input Voltage VDD Input Voltage Lx pin Current (Ta=25 ) SYMBOL VOUT VLx VCE VDD ILX
CMOS IC
RATINGS UNIT 12 V 12 V 12 V 12 V 400 mA SOT-89 500 mW Power Dissipation PD SOT-25 250 mW Operating Junction Temperature TJ +125 Operating Ambient Temperature TOPR -30 ~ +80 Storage Temperature TSTG -40 ~ +125 Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTRISTICS(Ta=25 , VIN=VOUTx 0.6, unless otherwise specified.)
UTC L3383-2.0V (IOUT=10mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD1. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1. MIN 1.950 TYP MAX UNIT 2.000 2.050 V 10 V 0.80 0.90 V V 1.1 V 4.3 8.6 A 13.6 27.3 A 1.9 3.9 A 1.0 A 9.1 13.7 75 80 % 45 50 % 70 % 180 210 kHz 120 130 kHz V 0.20 0.25 -0.25 0.5 V A A A
0.70 0.7
70 40 150 100 0.75
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3 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-2.5V (IOUT=10mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current UTC L3383-2.6V (IOUT=10mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD1. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
CMOS IC
MIN TYP MAX UNIT 2.438 2.500 2.563 V 10 V 0.80 0.90 V 0.70 V 0.7 1.1 V 4.45 8.95 A 16.65 33.35 A 2.0 4.05 A 1.0 A 7.15 10.8 70 75 80 % 40 45 50 % 70 % 150 180 210 kHz 100 120 130 kHz 0.75 0.20 0.25 -0.25 0.5 V V A A A
SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH
TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD1. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1.Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
MIN TYP MAX UNIT 2.535 2.600 2.665 V 10 V 0.80 0.90 V 0.70 V 0.7 1.1 V 4.48 9.02 A 17.26 34.56 A 2.02 4.08 A 1.0 A 6.76 10.22 70 75 80 % 40 45 50 % 70 % 150 180 210 kHz 100 120 130 kHz 0.75 0.20 0.25 -0.25 0.5 V V A A A
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4 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-2.7V (IOUT=10mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current UTC L3383-2.8V (IOUT=10mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD1. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1.Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
CMOS IC
MIN TYP MAX 2.633 2.700 2.768 10 0.80 0.90 0.70 0.7 1.1 4.51 9.09 17.87 35.77 2.04 4.11 1.0 6.37 9.64 70 75 80 40 45 50 70 150 180 210 100 120 130 0.75 0.20 0.25 -0.25 0.5
UNIT V V V V V A A A A % % % kHz kHz V V A A A
SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH
TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD1. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1,.Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
MIN TYP MAX 2.730 2.800 2.870 10 0.80 0.90 0.70 0.7 1.1 4.54 9.16 18.48 36.98 2.06 4.14 1.0 5.98 9.06 70 75 80 40 45 50 70 150 180 210 100 120 130 0.75 0.20 0.25 -0.25 0.5
UNIT V V V V V A A A A % % % kHz kHz V V A A A
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5 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-3.0V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current UTC L3383-3.1V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1. MIN TYP 2.925 3.000 0.80 0.70 0.7 4.6 19.7 2.1 5.2 75 45 80 180 120
CMOS IC
MAX 3.075 10 0.90 1.1 9.3 39.4 4.2 1.0 7.9 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH
TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1, Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
MIN TYP 3.023 3.100 0.80 0.70 0.7 4.635 20.3 2.115 5.08 75 45 80 180 120
MAX 3.178 10 0.90 1.1 9.365 40.6 4.23 1.0 7.72 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
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www.unisonic.com.tw
6 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-3.2V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current UTC L3383-3.3V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1. MIN 3.120 TYP 3.200 0.80 0.70 0.7 4.67 20.9 2.13 4.96 75 45 80 180 120
CMOS IC
MAX 3.280 10 0.90 1.1 9.34 41.8 4.26 1.0 7.54 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH
TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
MIN TYP 3.218 3.300 0.80 0.70 0.7 4.705 21.5 2.145 4.84 75 45 80 180 120
MAX 3.383 10 0.90 1.1 9.41 43 4.29 1.0 7.36 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
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7 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-3.6V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current UTC L3383-3.7V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1. MIN 3.510 TYP 3.600 0.80 0.70 0.7 4.81 23.3 2.19 4.48 75 45 80 180 120
CMOS IC
MAX 3.690 10 0.90 1.1 9.62 46.6 4.38 1.0 6.82 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH
TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
MIN TYP 3.608 3.700 0.80 0.70 0.7 4.845 23.9 2.205 4.36 75 45 80 180 120
MAX 3.793 10 0.90 1.1 9.755 47.8 4.41 1.0 6.64 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
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8 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-4.0V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current UTC L3383-4.5V (IOUT=30mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency High Low VCEL ICEH ICEL ISTB VCEH TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1. MIN TYP 3.900 4.000 0.80 0.70 0.7 4.95 25.7 2.25 4.0 75 45 80 180 120
CMOS IC
MAX 4.100 10 0.90 1.1 9.94 51.4 4.5 1.0 6.1 80 50 210 130
70 40 150 100 0.75
UNIT V V V V V A A A A % % % kHz kHz V
0.20 0.25 -0.25 0.5
V A A A
SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High CE Voltage Low CE "High" Current Stand-by Current High Low VCEL ICEH ICEL ISTB VCEH
TEST CONDITIONS L, SD, CL etc. connected IOUT=1mA IOUT=1mA Same as IDD. Fosc>Fosc1x2 IOUT=0mA (Note 1) VIN=VOUTx0.95 VIN=VOUT+0.5V No external components, VOUT=VLx=10V. Same as IDD1. VLx=0.4V Same as IDD1. Measuring of Lx waveform IOUT=1mA. Measuring of Lx on-time L, SD, CL etc. connected Same as IDD1. 75% duty Same as IDD1. 45% duty Same as IDD1. Existence of Lx Oscillation. Same as IDD1. Disappearance of Lx Oscillation Same as IDD1. VCE=VOUTx0.95 Same as IDD1. VCE=0V Same as IDD1.
MIN TYP MAX 4.388 4.500 4.613 10 0.80 0.90 0.70 0.7 1.1 5.125 10.25 28.8 57.6 2.325 4.65 1.0 3.4 5.2 70 75 80 40 45 50 80 150 180 210 100 120 130 0.75 0.20 0.25 -0.25 0.5
UNIT V V V V V A A A A % % % kHz kHz V V A A A
UNISONIC TECHNOLOGIES CO., LTD
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9 of 14
QW-R502-032,E
L3383
ELECTRICAL CHARACTRISTICS(Cont.)
UTC L3383-5.0V (IOUT=50mA) PARAMETER Output Voltage Maximum Input Voltage Oscillation Start-up Voltage Oscillation Hold Voltage Lx Limit Voltage No-Load Input Current Supply Current 1(Note 2) Supply Current 2 Lx Leakage Current Lx Switch-On Resistance Duty Ratio 1 Duty Ratio 2 Efficiency SYMBOL VOUT VIN VST VHLD VLxLMT IIN IDD1 IDD2 ILXL RSWON DTY1 DTY2 EFFI Fosc1 Maximum Oscillation Frequency Fosc2 For 5-Pins package Only High VCEH TEST CONDITIONS L, SD, CL etc. connected
CMOS IC
MIN TYP MAX UNIT 4.875 5.000 5.125 V 10 V IOUT=1mA 0.80 0.90 V IOUT=1mA 0.70 V Same as IDD1. Fosc>Fosc1x2 0.7 1.1 V IOUT=0mA (Note 1) 5.3 10.6 A VIN=VOUTx0.95 31.7 63.4 A VIN=VOUT+0.5V 2.4 4.8 A No external components, VOUT=VLx=10V. 1.0 A Same as IDD1. VLx=0.4V 2.8 4.3 Same as IDD1. Measuring of Lx waveform 70 75 80 % IOUT=1mA. Measuring of Lx on-time 40 45 50 % L, SD, CL etc. connected 85 % Same as IDD1. 75% duty 150 180 210 kHz Same as IDD1. 45% duty 100 120 130 kHz
Same as IDD1. 0.75 V Existence of Lx Oscillation. CE Voltage Same as IDD1. 0.20 V Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUTx0.95 0.25 A CE "High" Current Same as IDD1. VCE=0V -0.25 A Low ICEL Stand-by Current ISTB Same as IDD1. 0.5 A Note: 1. The Schottky diode (SD) must be type MA735, with reverse current(IR)<1.0A at reverse voltage (VR) =10V. 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)".
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QW-R502-032,E
L3383
TYPICAL APPLICATION CIRCUITS
CMOS IC
UTC L3383 1 2 3
L VIN
VOUT SD + CL
L: 100H SD: MA735 (Schottky diode; MATSUSHITA) C L : 16V 47F
GND
Fig.1 3-Lead Package Application(SOT-89)
L VIN
5
4
UTC L3383 1 2 3 VOUT SD CL + L: 100H SD: MA735 (Schottky diode; MATSUSHITA) CL : 16V 47F GND
CE
Fig.2 5-Lead Package Application(SOT-25)
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QW-R502-032,E
L3383
TYPICAL CHARACTERISTICS (BUILT-IN SWITCHING TRANSISTOR)
(1) OUTPUT VOLTAGE vs. OUTPUT CURREN
L3383-3.0V 3.5 Output Voltage, VOUT (V) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 20 40 60 80 100 1.2V VIN =0.9V 1.5V 1.8V L=100 H,C=47 F (Tantalum) 2.0V Output Voltage, VOUT (V) 6 5 4 3 2 1 0 0 VIN =0.9V 1.5V 1.2V L3383-5.0V L=100 H,C=47 F (Tantalum)
CMOS IC
3.0V
2.0V
20
40
60
80
100
Output Current, IOUT (mA)
Output Current, IOUT (mA)
(2) EFFICIENCY vs. OUTPUT CURRENT
L3383-3.0V 100 80 60 0.9V 40 20 0 1.2V 1.5V 1.8V L=100H, C=47F (Tantalum) VIN=2.0V L3383-5.0V 100 L=100H, C=47F (Tantalum) VIN=3.0V 80 Eficiency, EFFI (%) 60 0.9V 40 20 0 1.2V 1.5V 2.0V
Eficiency, EFFI (%)
0
20
40
60
80
100
0
Output Current, IOUT(mA)
20 40 60 80 Output Current, IOUT(mA)
100
(3) RIPPLE VOLTAGE vs. OUTPUT CURRENT
L3383-3.0V 100 80 Ripple, VR(mVP-P) Ripple, VR(mVP-P) 60 40 20 0 VIN =1.5V L=100H, C=47 F (Tantalum) 120 100 80 60 40 20 0 2.0V VIN=3.0V L3383-5.0V L=100H, C=47 F (Tantalum)
1.2V 0.9V 0 20 40 60 80 100
1.5V 0 20 40 60 80 100
Output Current, IOUT(mA)
Output Current, IOUT(mA)
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L3383
TYPICAL CHARACTERISTICS FOR L3383-5.0
(1) Operating Start Voltage, Retain Voltage vs. Output Current 2.0 Opfrating Start Voltage, Retain Voltage, VST, VHLD(V) Output Voltage, VOUT (V) 5.2
CMOS IC
(2) Output Voltage vs. Temperature
1.5 VST 1.0
5.1
5.0
0.5
VHLD
4.9
0.0
0
5
10
15
4.8 -40
-20
0
20
40 )
60
80
Output Current, IOUT(mA)
(3) Operating Start Voltage, Retain Voltage vs. Output Current Current Consumption 1, IDD1 ( A) 1.0 Opfrating Start Voltage, Retain Voltage, VST, VHLD(V) 0.8 0.6 0.4 0.2 0.0 -40 VHLD VST 60 50 40 30 20 10 0 -40 -20
Temperature, Ta (
(4) Current Consumption 1 vs. Temperature
-20
0
20
40 )
60
80
0
20
40 )
60
80
Temperature, Ta (
Temperature, Ta (
(5) Current Consumption 2 vs. Temperature Current Consumption 2, IDD2 ( A) 4 Lx Switching-on Resistance, Rswon ( ) 4
(6) Lx Switching-on Resistance vs. Temperature
3
3
2
2
1
1
0 - 40
-20
0
20
40
60
80
0
- 40
-20
0
20
40
60
80
Amb. Temperature Ta, ( )
Amb. Temperature Ta, ( )
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L3383
TYPICAL CHARACTERISTICS FOR L3383-5.0V(cont.)
(7) Max Osc Frequency1, 2 vs. Amb. Temperture Maximum Osc Frequency1, 2, Max FOSC1, 2(kHZ) 200 MAX FOSC 2 Dutyratio 1, 2 Duty 1, 2 (%) 100 80 60 40 20 0 -40 Duty 2 (8) Duty Ratio1, 2 vs. Amb. Temperature
CMOS IC
150
Duty 1
100 MAX FOSC 1 50
0 -40
-20
0
20
40
60
80
-20
0
20
40
60 )
80
Amb. Temperatyre, Ta ( )
Amb. Temperatyre, Ta (
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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