om7603st International Rectifier Corp., om7603st Datasheet
om7603st
Manufacturer Part Number
om7603st
Description
Isolated Hermetic To-257aa Adjustable Voltage Regulator
Manufacturer
International Rectifier Corp.
Datasheet
1.OM7603ST.pdf
(4 pages)
ISOLATED HERMETIC TO-257AA
ADJUSTABLE VOLTAGE REGULATOR
4 11 R4
Supersedes 1 07 R3
FEATURES
• Isolated Hermetic Package, JEDEC TO-257AA Outline
• Adjustable Output Voltage
• Eliminates Stocking Fixed Voltages
• Built-In Thermal Overload Protection
• Short Circuit Current Limiting
• Product Is Available Screened To MIL-STD -883
• Similar To Industry Standard P/N LM137
DESCRIPTION
This three terminal negative regulator is supplied in a hermetically sealed metal
package whose outline is similar to the industry standard TO-220 plastic 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 1.0 amp of
output current. This unit features output voltages that can be trimmed using external
resistors, from -1.2 volts to -37 volts.
ABSOLUTE MAXIMUM RATINGS
Input-Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +150°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65° to +150°C
Typical Power/Thermal Characteristics:
Note: This device is also available in a non-isolated JEDEC TO-257AA package.
Rated Power @ 25°C
Thermal Resistance
T
T
q
q
JC
JA
C
A
Use part number OM7603NT for non-isolated unit.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
Three Terminal, Adjustable Voltage, 1.5 Amp
Precision Negative Regulator In Hermetic
JEDEC TO-257AA Package
3.3 - 137
@ 25°C
OM7603ST
3.3
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om7603st Summary of contents
Page 1
... JA Note: This device is also available in a non-isolated JEDEC TO-257AA package. Use part number OM7603NT for non-isolated unit Supersedes 25°C 3.3 - 137 OM7603ST 3.3 ...
Page 2
... OM7603ST ELECTRICAL CHARACTERISTICS Parameter Symbol Reference Voltage V REF Line Regulation R LINE (Note 1) Load Regulation R LOAD (Note 1) Thermal Regulation V RTH Ripple Rejection R N (Note 2) Adjustment Pin Current I Adj Adjustment Pin ³I Adj Current Change (line) ³I Adj (load) Miminum Load Current I Lmin ...
Page 3
... T , Junction Temperature (C°) J MINIMUM OPERATING CURRENT -55°C 1 25°C 1 150°C 1.4 1.2 1.0 0.8 0.6 0.4 0 Input - Output Voltage Differential ( 3.3 - 139 OM7603ST 1. 1.0A 100 100 125 125 150 150 3 ...
Page 4
... Adj + R1** 1µF* 2.2* D1 100 IN4002 µ R5** D2 2.2* 1µF* 100 IN4002 µF 1% Adj OUT -V OUT OM7603ST + 1.0µF 120 OUT Tab NON-ISOLATED Front View Pin 1: Adjust Pin 2: Input Pin 3: Output Isolated Tab: Input ...