OM2990-XST OM2990-XNK OM2990-XNM
DESC APPROVED LOW DROPOUT NEGATIVE
Three Terminal, Fixed Voltage,
Low Dropout Negative Voltage Regulator
In Hermetic Packages
Please see mechanical
outlines herein
FEATURES
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Approved To DESC Standardized Military Drawings |
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Low Dropout Voltage, 0.6 V @ IO = 1 A |
1.3 |
•Output Current in Excess of 1 A [LCC 20 (N2) package limited to 0.3A]
•Reverse Battery Protection
•Internal Short Circuit Protection
•Isolated and Non-Isolated Hermetic Package Types
•Output Voltages: - 5V, -5.2V, -12V, & -15V
DESCRIPTION
The OM2990 series of fixed voltage regulators are designed to provide up to 1.5A with high efficiency. It has the ability to source 1A of output current with a typical dropout voltage of 0.6V and a maximum of 1V over the entire operating temperature range. It is supplied in hermetic packages and is ideally suited for all applications where small size and high reliability are required.
ABSOLUTE MAXIMUM RATINGS, TC = 25°C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -26 V to +0.3V Output Voltage.................................... -5V, -5.2 V,-12 V, -15 V dc Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 125°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C Thermal Resistance: Junction to Case
Case2,LCC20................................................15.5°C/W
Case U&M, TO-257(isolated)&SMD-3..............................3.8°C/W
Case T&N, TO-257(non-isolated)&SMD-1...........................3.0°C/W
Case Y,TO-3...................................................2.7°C/W
Maximum Output Current
Case2...........................................................0.3A
CaseU&M.......................................................1.2A
Case T, N & Y......................................................1.5A
APPROVED DESC DRAWING |
OMNIREL P/N |
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5962-9571101MUA |
OM2990 - 5 STM |
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5962-9571002MUA |
OM2990 - 5.2 STM |
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5962-9571001MUA |
OM2990 - 12 STM |
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7 01 R3
Supersedes 5 04 R2
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ELECTRICAL CHARACTERISTICS, |
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OM2990-5NK, NM, NT (-5 VOLTS) |
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Test Conditions are |
-55°C TA |
125°C, VIN = |
-10V, COUT = |
47 µF (unless otherwise specified). |
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Parameter |
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Symbol |
Test Conditions |
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Notes |
Min. |
Max. |
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Unit |
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Output Voltage |
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VO U T |
5 mA < IO < 1.0 A |
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1 |
-5.10 |
-4.90 |
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V |
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2 |
-5.25 |
-4.75 |
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Quiescent Current |
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IQ |
IO < 1.0A |
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1 |
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5 |
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m A |
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2 |
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12 |
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IO = 1.0A , VIN = -5 V |
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1,2 |
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50 |
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Line Regulation |
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VRLN |
-6 V |
VIN |
-26 V, |
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1 |
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+40 |
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m V |
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IO U T = |
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5 mA |
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2 |
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+50 |
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Load Regulation |
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VRLD |
50 mA |
IO U T 1.0 A |
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1 |
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+50 |
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m V |
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2 |
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+100 |
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Dropout Voltage |
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VD O |
IO = 0.1 A |
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1 |
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.3 |
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V |
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DVO |
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100 mV |
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2 |
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IO = |
1.0 A |
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1 |
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1 |
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DVO |
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100 mV |
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2 |
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Output Noise Voltage |
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VO N |
IO = |
5 mA, |
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3 |
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750 |
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µV |
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10 Hz - |
100 kHz |
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Short Circuit Current |
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IO S |
RL = |
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1 |
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1 |
1.5 |
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A |
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2 |
1.3 |
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1.3 |
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Maximum Output Current IM A X |
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1 |
1.5 |
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A |
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Ripple Rejection |
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RR |
Vripple = 1 Vms |
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1 |
50 |
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dB |
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IO U T = 5 mA, f = 1 kHz |
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Notes: 1. TA = 25°C.
2.Over full operating temperature range.
3.Guaranteed, not tested
ELECTRICAL CHARACTERISTICS, OM2990-12NK, NM, NT (-12 VOLTS)
Test Conditions are -55°C TA |
125°C, VIN = -17V, COUT = 47 µF |
(unless |
otherwise |
specified) |
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Parameter |
Symbol |
Test Conditions |
Notes |
Min. |
Max. |
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Unit |
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Output Voltage |
VO U T |
5 mA < IO < 1.0A |
1 |
-12.24 |
-11.76 |
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V |
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2 |
-12.60 |
-11.40 |
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Quiescent Current |
IQ |
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IO < 1.0A |
1 |
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5 |
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m A |
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2 |
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12 |
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IO = 1A, VIN = -12 V |
1,2 |
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50 |
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Line Regulation |
VRLN |
-13 V |
VIN |
-26 V |
1 |
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+65 |
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m V |
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IO U T = |
5 |
mA |
2 |
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+80 |
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Load Regulation |
VRLD |
50 mA |
IO U T |
1.0 A |
1 |
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+80 |
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m V |
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2 |
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+120 |
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Dropout Voltage |
VD O |
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IO = 0.1 A |
1 |
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.3 |
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V |
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DVO |
100 mV |
2 |
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IO = 1 A |
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1 |
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1 |
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DVO |
100 mV |
2 |
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Output Noise Voltage |
VO N |
IO = |
5 mA, |
3 |
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1500 |
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µV |
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10 Hz - |
100 kHz |
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Short Circuit Current |
IO S |
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RL = |
1 |
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1 |
.90 |
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A |
Maximum Output Current |
IM A X |
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2 |
.75 |
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A |
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1 |
1.4 |
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4 |
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Ripple Rejection |
RR |
Vripple = 1 Vms |
1 |
42 |
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dB |
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IO U T = |
5 mA, f = 1 kHz |
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Notes: 1. TA = 25°C.
2.Over full operating temperature range.
3.Guaranteed, not tested
4.The short circuit current is less than the maximum output current due to internal foldback current limiting. The -5V and -5.2V versions do not reach the foldback current limit and therefore conducts a higher short
ELECTRICAL CHARACTERISTICS, OM2990-15NK, NM, NT (-15 VOLTS)
Test Conditions are -55°C TA |
125°C, VIN = |
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-20V, COUT = |
47 µF (unless otherwise specified). |
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Parameter |
Symbol |
Test Conditions |
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Notes |
Min. |
Max. |
Unit |
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Output Voltage |
VO U T |
5 mA < IO < 1.0 A |
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1 |
-15.30 |
-14.70 |
V |
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2 |
-15.75 |
-14.25 |
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Quiescent Current |
IQ |
IO < 1.0A |
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1 |
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15 |
m A |
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2 |
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20 |
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IO = 1.0A , VIN = -15 V |
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1,2 |
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50 |
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Line Regulation |
VRLN |
-16 V |
VIN |
-26 V, |
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1 |
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+75 |
m V |
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IO U T = 5 mA |
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2 |
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+120 |
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Load Regulation |
VRLD |
50 mA IO U T |
1.0 A |
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1 |
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+120 |
m V |
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2 |
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+190 |
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Dropout Voltage |
VD O |
IO = 0.1 A |
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1 |
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.3 |
V |
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DVO |
100 mV |
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2 |
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IO = |
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1.0 A |
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1 |
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1 |
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DVO |
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100 mV |
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2 |
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Output Noise Voltage |
VO N |
IO = |
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5 mA, |
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3 |
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1800 |
µV |
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10 Hz - |
100 kHz |
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Short Circuit Current |
IO S |
RL = |
1 |
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1 |
.75 |
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A |
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2 |
.62 |
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Maximum Output Current |
IM A X |
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1 |
1.4 |
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A |
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4 |
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Ripple Rejection |
RR |
Vripple = 1 Vms |
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1 |
42 |
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dB |
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IO U T = 5 mA, f = 1 kHz |
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Notes: 1. TA = 25°C.
2.Over full operating temperature range.
3.Guaranteed, not tested
4.The short circuit current is less than the maximum output current due to internal foldback current limiting. The -5V and -5.2V versions do not reach the foldback current limit and therefore conducts a higher short circuitlevel.