300K Rad Tolerant Three Terminal,

Negative Fixed Voltage Regulators

In Hermetic Packages

300 kRAD RADIATION TOLERANT 1.5 AMP

NEGATIVE FIXED VOLTAGE REGULATORS

OMR7905NH

OMR7912NH

OMR7915NH

OMR7905NM

OMR7912NM

OMR7915NM

OMR7905ST

OMR7912ST

OMR7915ST

OMR7905SR

OMR7912SR

OMR7915SR

Please see mechanical

outlines herein

0 04 R1

Supersedes 9 12 R0

FEATURES

• Isolated & Non-Isolated Hermetic Packages

• Output Voltages: -5V, -12V, -15V (Other Voltages Available)

• Output Voltages Set Internally To ±1% or ±2%

• Built-In Thermal Overload Protection

• Short Circuit Current Limiting

• Radiation Tolerant up to 450 K Rad (Si)

• Available Hi-Rel Screened, Class B and Class S, MIL-STD-883

DESCRIPTION

These three terminal negative regulators are supplied in a high density hermetically sealed

metal package and are available hi-rel screened. All protective features are designed into the

circuit, including thermal shutdown, current limiting and safe-area control. With heat sinking,

they can deliver over 1.5 amps of output current. These units feature internally trimmed output

voltages to ±1% or 2% of nominal voltage.

Standard voltages are -5V, -12V, and

-15V. However, other voltages are available up to -24 volts. These devices are ideally suited

for Space applications where small size, high reliability, and radiation tolerance is required.

The high level of Radiation Tolerance of these devices makes them a desirable choice for LEO

and many MEO and GEO communication satellites. Radiation testing is performed on a single

wafer by wafer basis. Random die samples per wafer are selected, packaged and radiation

tested to qualify each individual semiconductor wafer-by-wafer.

Input Voltage ......................................................................... -35 V

Operating Junction Temperature Range.................................. - 55°C to + 150°C

Storage Temperature Range............................................. - 65°C to + 150°C

Power Dissipation: TO-205 ........................................................... 1.1 W

Lead Temperature (Soldering 10 seconds) ...........................................300°C

Surface Mount Package Soldering Temperature ......................................250°C

Thermal Resistance, Junction to Case:

TO-205 .......................................................................17°C/W

SMD-1 .......................................................................3.5°C/W

Thermal Resistance, (Junction Ambient):

TO-205 .......................................................................90°C/W

Maximum Output Current: TO-205.................................................... 0.5 A

Case-All Others .................................................................. 3.3A

Radiation Tolerant - Total Dose .............................................. 300 K Rad (Si)