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OM7637SM
SURFACE MOUNT POSITIVE ADJUSTABLE 3.0 AMP VOLTAGE REGULATOR
Isolated Hermetic Surface Mount Package 3.0 Amp, Positive Adjustable Voltage Regulator
FEATURES
* * * * * * Isolated Hermetic Surface Mount Package Reference Voltage Set To 2% (1% Available) Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Hi-Rel Screened Electrically Similar To Industry Standard Type LM150A
DESCRIPTION
These three terminal positive regulators are supplied in a hermetic metal surface mount package. All protective features are designed into the circuit including thermal shutdown, current limiting and safe-area control. With heat sinking, they can deliver over 3.0 amps of output current. These units feature 2% initial voltage tolerance, with 0.3% load regulation and .01% line regulation.
ABSOLUTE MAXIMUM RATINGS @ 25C
Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35V Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Typical Power/Thermal Characteristics: Rated Power @ 25C TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance: JC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W Lead Temperature at Case (5 sec). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225C
3.5
Note: For 1% device, add letter "A" in front of part number (e.g. OMA7637SM).
4 11 R1 Supersedes 1 05 R0
3.5 - 131
OM7637SM
ELECTRICAL CHARACTERISTICS
Test Reference Voltage Symbol VREF Conditions IOUT = 10mA TA = 25C
-55C TA 125C (Note 1) unless otherwise specified
Limits Min. 1.20 Max. 1.30 V Unit
3.0V (VIN - VOUT) 35V, P 30W 10mA IOUT 3.0A (Note 2) Line Regulation (Note 2) VOUT VIN 3.0V (VIN - VOUT) 35V, IOUT = 10mA, TJ = 25C 3.0V (VIN - VOUT) 35V, IOUT = 10mA Load Regulation (Note 2) VOUT IOUT 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 VIN VREF IAdj IAdj 10mA IOUT 3.0A, IOUT = 10mA 3.0V (VIN - VOUT) 35V (VIN - VOUT) = 35V (VIN - VOUT) 10V (VIN - VOUT) = 30V 20ms pulse, TA =25C VOUT = 10V, f = 120Hz CADJ = 10F
1.20
1.30
V
0.01
%/V
0.05
%/V
17.5
mV
50
mV
0.35
%
1.0
%
0.01 66
%/W dB
100 5.0
A A
5.0 3.0 0.3
mA A A
Notes: 1. Unless otherwise specified, these specifications apply for (VIN - VOUT) = 5.0V and IOUT = 1.5A. Although power dissipation is internally limited, these characteristics are applicable for power dissipation up to 30W. 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.
MECHANICAL OUTLINE
.425
PIN CONNECTION
3.5
.200
2
.100
.425 .035 WIDE FLAT 3 PLCS.
1 3
.350 MIN.
.020 .115 .160
Pin 1: Pin 2: Pin 3: Case:
VOUT Adjust VIN Isolated
.020
.080

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