30 kRad - 100kRad Rad Tolerant LDO
Positive Adjustable Voltage Regulators in
Hermetic Packages
0 02 R0
30 kRad - 100kRad RADIATION TOLERANT 7.5A,
5A, 3A, 1.5A LOW DROPOUT POSITIVE
ADJUSTABLE REGULATORS
FEATURES
• Operates Down to 1V Dropout, 1.5V @ Max. Current
• .015% Line Regulation
• .01% Load Regulation
• 1% Reference Voltage
• Hermetic Isolated and Non-Isolated Packages
• Radiation Tolerant up to 150 kRad (Si)
• Available Hi-Rel Screened, Class B and Class S, MIL-STD-883
DESCRIPTION
These three terminal positive adjustab le v oltage regulators are designed to pro vide 7.5A,
5A, 3A, and 1.5A with higher efficiency than conv entional v oltage regulators. The de vices
are designed to operate to 1 Volt input to output differential and the dropout voltage is
specified as a function of load current. All devices are pin compatible with older three
terminal regulators. 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 perf ormed on a single waf er b y wafer
basis. Random die samples per wafer are selected, packaged and radiation tested to
qualify each individual semiconductor wafer-by-wafer.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input Voltage . ..........................................................30 V
Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature . ....................................... - 65°C to + 150°C
Output Current - OMR183SC, NM.. .................................. 7.5 A
OMR184SC, NM.. .................................... 5 A
OMR185ST, SR, NM. .................................. 3 A
OMR186ST, SR, NM.. ................................ 1.5 A
OMR186NH.. .......................................0.5 A
Lead Temperature (Soldering 10 seconds) ................................300°C
Surface Mount Package Soldering Temperature.............................250°C
Radiation Tolerant - Total Dose, OMR183, OMR184 ...................100k Rad (Si)
Total Dose, OMR185 . ..................................50k Rad (Si)
Total Dose, OMR186 . ..................................30k Rad (Si)
Note: OMR183 and OMR184 products are packaged in the TO-258 or SMD-1 Packages (7.5A & 5A).
OMR185 products are packaged in the TO-257, D
2
Pac or SMD-1 Packages (3A).
OMR186 products are packaged in the TO-257, D
2
Pac or SMD-1 or TO-205 Packages (1.5A & 0.5A).
OMR185 Series
OMR186 Series
OMR183 Series
OMR184 Series
Please see mechanical
outlines herein
