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IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES
!
1
2
5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR
3
Pin 1 - ADJ. Pin 2 - VOUT Case - VIN
Pin 1 - ADJ. Pin 2 - VIN Case - VOUT
FEATURES
* OUTPUT VOLTAGE RANGE OF 1.25 TO 35V * 1% OUTPUT VOLTAGE TOLERANCE (-A VERSIONS) * 0.3% LOAD REGULATION * 0.01% / V LINE REGULATION * COMPLETE SERIES OF PROTECTIONS:
Q Package - TO-254
K Package - TO-3
1
2
3
* CURRENT LIMITING * THERMAL SHUTDOWN * SOA CONTROL
Pin 1 - ADJ. Pin 2 - VOUT Pin 3 - VIN Case - VOUT
V Package - TO-218
Order Information
Part Number IP138A IP138 LM138 IP338A IP338 LM338 K-Pack (TO-3) V-Pack Q-Pack Temp. (TO-218) (TO-254) Range -55 to +150C " " 0 to 125C " " Note: To order, add the package identifier to the part number. eg. IP138AQ
ABSOLUTE MAXIMUM RATINGS (Tcase = 25C unless otherwise stated)
VI-O PD TJ TSTG TL Input - Output Differential Voltage Power Dissipation Operating Junction Temperature Range Storage Temperature Lead Temperature (Soldering, 10 sec.)
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
35V Internally limited See Table Above -65 to 150C 300C
Prelim. 4/96
Semelab plc.
IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES
Parameter
VREF Reference Voltage
Test Conditions
IOUT = 10mA IOUT = 10mA to 5A VIN - VOUT = 3V to 35V P 50W TJ = -55 to +150C
Min.
1.238 1.225
IP138A Typ.
1.25 1.250 0.005 0.020 5 0.1 20 0.3 0.002
Max.
1.262 1.270 0.010 0.040 15 0.3 30 0.6 0.010
Min.
LM138 IP138 Typ.
Max. Units
V
1.190
1.240 0.005 0.020 5 0.1 20 0.3 0.002 60
1.290 0.010 0.040 15 0.3 30 0.6 0.010
V
DVOUT Line Regulation 1 DVIN DVOUT Load Regulation 1 DIOUT
Thermal Regulation
VIN - VOUT = 3V to 35V TJ = -55 to +150C IOUT = 10mA to 5A IOUT = 10mA to 5A TJ = -55 to +150C tp = 20ms CADJ = 0 VOUT = 10V f = 120Hz TJ = -55 to +150C IOUT = 10mA to 5A VIN - VOUT = 3V to 35V TJ = -55 to +150C VIN - VOUT = 35V TJ = -55 to +150C VIN - VOUT 10V DC 0.5ms Peak 5 7 0.25 TJ = -55 to +150C VIN - VOUT = 30V TJ = -55 to +150C CADJ = 10mF TJ = -55 to +150C 60 VOUT 5V VOUT 5V VOUT 5V VOUT 5V
%/V mV % mV % %/W dB dB
60 75 45 0.2 100 5 60
Ripple Rejection
75 45 0.2 100 5
IADJ
Adjust Pin Current
mA mA
mA A A %
DIADJ Adjust Pin Current
Change IMIN Minimum Load Current ISC Current Limit
3.5 8 12 1 1 t = 1000 Hrs 0.3 0.001
5 5 7
3.5 8 12 1
5
DVOUT Temperature DTEMP Stability DVOUT Long Term Stability DTIME
en RqJC RMS Output Noise (% of VOUT) Thermal Resistance Junction to Case
TJ = -55 to +150C TA = 125C f = 10 Hz to 10 kHz K Package (TO-3)
2 1
1 0.3 0.001 1
% %
1
1
C/W
1) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating effects are covered under thermal regulation specifications. Load regulation is measured from the bottom of the package for the TO-3 package. 2) Test Conditions unless othewise stated: VIN - VOUT = 5V , TJ = 25C , IOUT = 2.5A. Although power dissipation is internally limited, these specifications apply for dissipations of 50W and IMAX = 5A.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 4/96
IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES
Parameter
VREF Reference Voltage
Test Conditions
IOUT = 10mA IOUT = 10mA to 5A VIN - VOUT = 3V to 35V P 50W TJ = 0 to +125C
Min.
1.238 1.225
IP338A Typ.
1.25 1.250 0.005 0.020 5 0.1 20 0.3 0.002
Max.
1.262 1.270 0.010 0.040 15 0.3 30 0.6 0.020
Min.
LM338 IP338 Typ.
Max. Units
V
1.190
1.240 0.005 0.020 5 0.1 20 0.3 0.002 60
1.290 0.030 0.060 25 0.5 50 1 0.020
V
DVOUT Line Regulation 1 DVIN DVOUT Load Regulation 1 DIOUT
Thermal Regulation
VIN - VOUT = 3V to 35V TJ = 0 to +125C IOUT = 10mA to 5A IOUT = 10mA to 5A TJ = 0 to +125C tp = 20ms CADJ = 0 VOUT = 10V f = 120Hz TJ = 0 to +125C IOUT = 10mA to 5A VIN - VOUT = 3V to 35V TJ = 0 to +125C VIN - VOUT = 35V TJ = 0 to +125C VIN - VOUT 10V DC 0.5ms Peak 5 6 0.25 TJ = 0 to +125C VIN - VOUT = 30V TJ = 0 to +125C TA = 125C f = 10 Hz to 10 kHz K Package (TO-3) V Package (TO-218) t = 1000 Hrs TJ = 0 to +125C CADJ = 10mF TJ = 0 to +125C 60 VOUT 5V VOUT 5V VOUT 5V VOUT 5V
%/V mV % mV % %/W dB dB
60 75 45 0.2 100 5 60
Ripple Rejection
75 45 0.2 100 5
IADJ
Adjust Pin Current
mA mA
mA A A %
DIADJ Adjust Pin Current
Change IMIN Minimum Load Current ISC Current Limit
3.5 8 12 1 1 0.3 0.001
10 5 6
3.5 8 12 1
10
DVOUT Temperature DTEMP Stability DVOUT Long Term Stability DTIME
en RqJC RMS Output Noise (% of VOUT) Thermal Resistance Junction to Case
2 1
1 0.3 0.003 1
% %
1 1
1 1
C/W
1) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating effects are covered under thermal regulation specifications. Load regulation is measured from the bottom of the package for the TO-3 package and at the junction of the wide and narrow portion of the output lead for the TO-218 package. 2) Test Conditions unless othewise stated: VIN - VOUT = 5V , TJ = 25C , IOUT = 2.5A. Although power dissipation is internally limited, these specifications apply for dissipations of 50W and IMAX = 5A.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 4/96
IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES
TYPICAL PERFORMANCE CHARACTERISTICS
Load Regulation
0.1 10
Output Impedance
65
Adjustment Current
0
60 I OUT = 3A Output Im pedance () 1 Adjustm ent C urrent (A) VIN = 15V VOUT =10V I OUT = 500mA 30 10 100 1k 10k 100k 1M -75 -50 -25 0 25 50 75 100 125 150 Frequency (Hz) Temperature (C) 35 CADJ = 0 0.1 COUT = 0 55
V oltage C hange (% )
0.1
I OUT = 5A
50
0.2
0.01
45
0.3 VIN = 15V 0.4 VOUT = 10V PRELOAD = 50mA 0.5 -75 -50 -25 0 25 50 75 100 125 150 Temperature (C)
40
0.001
CADJ = 10 F COUT = 10 F
0.0001
Droput Voltage
4 VOUT = 100mV 1.27
Temperature Stability
5
Minimum Operating Current
4 Input - Output Differential (V ) 1.26 3 I OUT = 5A Quiescent Current (m A ) Reference V oltage (V) TJ = 150C TJ = 25C TJ = -55C 2
3
1.25
I OUT = 3A 2 I OUT = 1A
1.24 1
1 -75 -50 -25 0 25 50 75 100 125 150 Temperature (C)
1.23 -50 -25 0 25 50 75 100 125 150 Temperature (C)
0 0 5 10 15 20 25 30 35 40 Input - Output Differential (V)
Ripple Rejection
80
CADJ = 10F 100
Ripple Rejection
100 CADJ = 10 F 80 80 Ripple Rejection (dB )
Ripple Rejection
70
Ripple Rejection (dB ) Ripple Rejection (dB ) CADJ = 0
CADJ = 0 60
60
60
CADJ = 0
CADJ = 10 F
40
40
50
V IN = 15V V OUT =10V TCASE = 25C f = 120Hz
VIN -V OUT = 5V 20 I OUT = 500mA f = 120Hz TJ = 25C 0 0 0 5 10 15 20 25 30 35 10 100 1k 10k 100k 1M Output Voltage (V) Frequency (Hz) 20 VIN = 15V VOUT = 10V I OUT = 500mA
40 0.1 1
Output Current (A)
10
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 4/96
IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES
TYPICAL PERFORMANCE CHARACTERISTICS
Current Limit
16 T CASE = 25C 14 12 10 O utput Current (A ) O utput Current (A ) 10 8 6 PRELOAD = 1A 4 2 0 0 5 10 15 20 25 30 35 40 Input - Output Differential (V) PRELOAD = 5A PRELOAD = 5A O utput Current (A ) 10 VIN -V OUT = 10V 8 VIN -V OUT = 15V VIN -V OUT = 20V PEAK CURRENT LIMIT DC CURRENT LIMIT 12 PRELOAD = 0 PRELOAD = 0 12 14
Current Limit
14
Current Limit
PRELOAD CURRENT= 0 T CASE = 25C
8
6
6
4 VIN = 10V 2 VOUT = 5V T CASE = 25C 0 0.1 1 Time (ms) 10 100
4
2
VIN -V OUT = 30V
0 0.1 1 Time (ms) 10 100
Line Transient Response
1 O utput Voltage Deviation (V ) Output Voltage Deviation (V) VOUT =10V 0.5 0 -0.5 -1 -1.5 Load C urrent (A) 1 0.5 0 0 10 20 Time ( s) 30 40 CADJ = 10 F COUT = 1F CADJ = 0 COUT = 0 I OUT = 50mA T J = 25C 3 2 1 0 -1 -2 -3 6 Input V oltage C hange (V) 4 2 0
Load Transient Response
CA D J = 0 CADJ = 10F C L = 1F CL = 0
VIN = 15V VOUT =10V T CASE = 25C PRELOAD = 100mA
0
10
20 Time ( s)
30
40
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 4/96
IP138A SERIES IP138A SERIES IP338A SERIES IP338A SERIES LM138 SERIES
APPLICATIONS INFORMATION
Remote Sensing
IP138A
VIN VIN ADJ V IN
7
5V Regulator with Shut Down
IP138A
OUTPUT 5V VIN VIN ADJ
1 F
VO U T
R P (Max Drop 300mV)
VO U T
121
5V VO U T
25 121
2
6 1
LM301A
3 8 4
1k 5 F
RL TTL
1 k
2N3904
1 k
383
383 25
RETURN
RETURN
2816 EEPROM Supply Programmer for Read/Write Control
IP138A
+24V VIN ADJ
1 F
Improving Ripple Rejection
IP138A
VIN VIN ADJ
1 F
VO U T
249 1%
To VPP
VO U T
R1 121
5V
750 1%
R2 383
C1 10 F
READ
39k
3.24k 1%
C1 improves ripple rejection. XC should be small compared to R2.
WRITE To OE BYTE ERASE
18k
Temperature Compensated Lead-Acid Battery Charger
CHIP ERASE
100k
All gates 7406.
VIN 1N4001 VIN
IP138A
VO U T ADJ
READ WRITE BYTE 5V CHIP ERASE 12V
OE 0V
VPP 5V 21V 21V
2N3906
243 10k 50
THERMALLY COUPLE
12V 20k
50k
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 4/96

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