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OM3910STM/NTM OM3911STM/NTM
3.0 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR APPROVED TO DESC DRAWING 5962-87675
Three Terminal, Adjustable Voltage, 3.0 Amp Precision Positive Regulator In Hermetic JEDEC TO-257AA Package
FEATURES
* Approved To DESC Standardized Military Drawing 5962-8767501UX/TX and 5962-8767502UX/TX * Isolated Hermetic Package, JEDEC TO-257AA Outline * Reference Voltages Set To 1% and 2% * Built-In Thermal Overload Protection * Short Circuit Current Limiting * Similar Electrically To Industry Standard LM150A
DESCRIPTION
These three terminal positive regulators approved by DESC, are supplied in a hermetically sealed isolated, metal TO-257 package. All protective features are designed into the circuit including thermal shutdown, current limiting and safearea control. With heat sinking, they can deliver over 3.0 amps of output current. These units feature 1% and 2% initial voltage tolerance, 0.35% load regulation and .01% line regulation.
ABSOLUTE MAXIMUM RATINGS @ 25C Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35 V Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C Typical Power/Thermal Characteristics: Rated Power @ 25C TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W Thermal Resistance: qJC Case U. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W qJC Case T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5C/W qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50C/W a
DESC DRAWING
5962-8767501UX 5962-8767502UX 5962-8767501TX 5962-8767502TX
3.3
REFERENCE VOLTAGE
2% 1% 2% 1%
OMNIREL PART NUMBER
OM3910STM OM3911STM OM3910NTM OM3911NTM
4 11 R1 Supersedes 2 07 R0
3.3 - 113
OM3910STM/NTM OM3911STM/NTM
ELECTRICAL CHARACTERISTICS
Test Reference Voltage Symbol VREF Conditions IOUT = 10mA TA = 25C
-55C TA 125C (Note 1) unless otherwise specified
Dash No. 01 02 01 02 All P/N's All P/N's All P/N's All P/N's All P/N's All P/N's All P/N's All P/N's All P/N's 100 5.0 A A 66 0.01 %/W dB 1.0 % 0.35 % 50 mV 17.5 mV 0.05 %/V Limits Min. Max. 1.20 1.238 1.20 1.225 1.30 1.262 1.30 1.270 0.01 Unit V V V V %/V
3.0V (VIN - VOUT) 35V, P 30W 10mA IOUT 3.0A (Note 2) Line Regulation (Note 2) RLINE 3.0V (VIN - VOUT) 35V, IOUT = 10mA, TJ = 25C 3.0V (VIN - VOUT) 35V, IOUT = 10mA Load Regulation (Note 2) RLOAD 10mA IOUT 3.0A, VOUT 5.0A, TJ = 25C 10mA IOUT 3.0A, VOUT 5.0A 10mA IOUT 3.0A, VOUT 5.0A, TJ = 25C 10mA IOUT 3.0A, VOUT 5.0A Thermal Regulation Ripple Rejection (Note 3) Adjust Pin Current Adjust Pin Current Change Miminum Load Current Current Limit IMIN ICL IAdj IAdj 10mA IOUT 3.0A, IOUT = 10mA 3.0V (VIN - VOUT) 35V (VIN - VOUT) = 35V (VIN - VOUT) 10V (VIN - VOUT) = 30V RN 20ms pulse, TA =25C VOUT = 10V, f = 120Hz CADJ = 10F
All P/N's All P/N's All P/N's All P/N's 3.0 0.3
5.0
mA A A
Notes: 1. Unless otherwise specified, these specifications apply for (VIN - VOUT) = 5.0V and IOUT = 1.5A. 2. Regulation is measured at a constant junction temperature using a pulse technique. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. 3. Guaranteed if not tested to the limits specified.
3.3
3.3 - 114
OM3910STM/NTM OM3911STM/NTM
TYPICAL PERFORMANCE CHARACTERISTICS
LOAD REGULATION
1.0 VOLTAGE CHANGE (PERCENT) 0 IOUT = 3A 0.1 0.2 0.3 0.4 0.5 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) 6 ADJUSTMENT CURRENT (A)
CURRENT LIMIT
65 60 55 50 45 40 35 30 -75
ADJUSTMENT CURRENT
OUTPUT CURRENT (A)
TJ = -55C 4 TJ = 150C TJ = 25C
2
0
0
5
10
15
20
25
30
35
INPUT-OUTPUT DIFFERENTIAL (V)
-25 25 75 TEMPERATURE (C)
125
DROPOUT VOLTAGE
3 INPUT-OUTPUT DIFFERENTIAL (V) VOUT = 100mV 2.5 REFERENCE VOLTAGE (V) 1.27
TEMPERATURE STABILITY
5 MINIMUM IOUT CURRENT (mA)
MINIMUM OPERATING CURRENT
IOUT = 3A IOUT = 2A
1.26
4 TJ = 150C 3 TJ = 25C 2
2
1.25
1.5 IOUT = 20mA 1 0.5 -75
1.24
1 0
TJ = -55C
-25
25
75
125
1.23 -50 -25
TEMPERATURE (C)
0 25 50 75 100 125 150 TEMPERATURE (C)
0
5
10
15
20
25
30
35
40
INPUT-OUTPUT DIFFERENTIAL (V)
RIPPLE REJECTION
100 CADJ = 10F RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) 80 80 100
RIPPLE REJECTION
80 CADJ = 10F
RIPPLE REJECTION
CADJ = 10F RIPPLE REJECTION (dB) 70
60
60 CADJ = 0 40 V = 15V 20 VIN = 10V OUT IOUT = 500mA 0 10 100 1k 10k 100k 1M
CADJ = 0
60
40 VIN - VOUT = 5V IOUT = 500mA f = 120Hz TI = 25C 0 5 10 15 20 25 30 OUTPUT VOLTAGE (V) 35
CADJ = 0
20
50
0
40
VIN = 15V VOUT = 10V f = 120Hz TCASE = 25C 0.1 1 OUTPUT CURRENT (A) 10
3.3
FREQUENCY (Hz)
OUTPUT IMPEDANCE
OUTPUT VOLTAGE DEVIATION (V) 10 OUTPUT IMPEDANCE (OHMS) 1.5 1 0.5 0
LINE TRANSIENT RESPONSE
OUTPUT VOLTAGE DEVIATION (V) 1.5 1 VOUT = 10V IOUT = 50mA TI = 25C COUT = 0, CADJ = 0
LOAD TRANSIENT RESPONSE
COUT = 0, CADJ = 0 COUT = 1F 0.5 CADJ = 10F 0 -0.5 -1 VIN = 15V VOUT = 10V PRELOAD = 100mA TI = 25C
1 CADJ = 0 COUT = 0 0.1 CADJ = 10F COUT = 10F VIN = 15V VOUT = 10V IOUT = 500mA 100 1k 10k 100k FREQUENCY (Hz) 1M
-0.5 COUT = 1F, CADJ = 10F -1 1 0.5 0 0 10 20 TIME (s) 30 40
LOAD CURRENT (A)
0.01
INPUT VOLTAGE CHANGE (V)
-1.5 1.5 1 0.5 0 0 10
0.001
0.0001 10
20 TIME (s)
30
40
3.3 - 115
OM3910STM/NTM OM3911STM/NTM
TYPICAL APPLICATIONS
1.2 - 25V Adjustable Regulator
VIN ADJ. C1* 1F R2 5k * Needed if device is far from filter capacitors Optional - improves transient response VOUT = 1.25V (1 + R2 ) R1 VOUT R1 240 + C2 1f VOUT VIN 1F
Improving Ripple Rejection
VIN ADJ. R2 365 1% VOUT 5V R1 121 1% + CL 10f*
Adjustable Current Limiter
0.5 VIN VOUT ADJ. 1K 500
* C, Improves ripple rejection XC should be small compared to R2
Precision High Current Reference
VIN +10V VIN VOUT ADJ. 7 2k 6 + 3 2k 15k 1% VIN
Remote Sensing
RD (Max. Drop 300mV) VIN VOUT ADJ. 7 25 6 1 8 4 365 100F + 5F - RET LM301A + 3 VIN - 2 1k 5V
LT 1001 4 2 - 2.5V LT 1009 121 4.99k 1% RETURN
RL
25
MECHANICAL OUTLINE
.420 .410 .200 .190 .045 .035 .665 .645 .537 .527 .430 .410 .038 MAX.
CONNECTION DIAGRAM
Tab
3.3
.150 .140
.750 .500
.005
.035 .025
.100 TYP.
.120 TYP.
1
2
3
NOTES:
* Case is metal/hermetically sealed * Isolated Tab
CASE U FRONT VIEW Pin 1: Adjust Pin 2: VOUT Pin 3: VIN Tab: Isolated
CASE T FRONT VIEW Pin 1: Adjust Pin 2: VOUT Pin 3: VIN Tab: VOUT
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246

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