Three Terminal, Fixed Voltage,
Low Dropout Negative Voltage Regulator
Please see mechanical
outlines herein
In Hermetic Packages
OM2990-XNM
1.1
FEATURES
• Approved To DE S C Standardized Military Drawings
• Low Dropout Voltage, 0.6 V @ IO= 1 A
• 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 ef ficiency . 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.
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
OUT
Q
RLN
RLD
DO
ON
OS
MAX
R
5 mA < IO < 1.0A 1-12.24-11.76V
IO < 1.0A15m A
IO = 1A, VIN= -12 V1,250
-13 V VIN -26 V1+ 65m V
I
= 5 mA2+ 80
OUT
50 mA I
IO= 0.1 A 1
100 mV2
DV
O
IO= 1 A1
DVO 100 mV2
IO= 5 mA,
10 Hz - 100 kHz
RL= 1 1.90A
V
ripple
I
= 5 mA, f = 1 kHz
OUT
= 47 µF (unless otherwise specified).
OUT
2-12.60-11.40
212
1.0 A1+ 80m V
OUT
= 1 V
ms
2+120
.3
1
31500µV
2.75
11.4
4
142dB
V
A
ELECTRICAL CHARACTERISTICS, OM2990-15NK, NM, NT (-15 VOLTS)
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
circuit level.
OUT
Q
RLN
RLD
DO
ON
OS
MAX
R
5 mA < IO < 1.0 A 1-15.30-14.70V
IO < 1.0A115m A
IO = 1.0A , VIN= -15 V1 ,250
-16 V VIN -26 V,1+75m V
I
= 5 mA2+120
OUT
50 mA I
OUT
IO= 0.1 A 1
DVO 100 mV 2
IO= 1.0 A1
DVO 100 mV 2
IO= 5 mA,
10 Hz - 100 kHz
RL= 1 1.75A
V
= 1 V
ripple
I
= 5 mA, f = 1 kHz
OUT
= 47 µF (unless otherwise specified).
OUT
2-15.75-14.25
220
1.0 A1+ 120m V
ms
2+190
.3
1
31800
2.62
11.4A
4
142dB
V
µV
ELECTRICAL CHARACTERISTICS, OM2990-5SM, ST (-5 VOLTS)
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
circuit level.
OUT
Q
RLN
RLD
DO
ON
OS
MAX
R
5 mA < IO < 1.0A 1-12.24-11.76V
IO < 1.0A15m A
IO = 1A, VIN= -12 V1,250
-13 V VIN -26 V1+ 65m V
I
= 5 mA2+ 80
OUT
50 mA I
IO= 0.1 A 1
100 mV2
DV
O
IO= 1 A1
DVO 100 mV2
IO= 5 mA,
10 Hz - 100 kHz
RL= 1 1,2.75A
V
= 1 V
ripple
I
= 5 mA, f = 1 kHz
OUT
= 47 µF (unless otherwise specified).
OUT
2-12.60-11.40
212
1.0 A1+ 80m V
OUT
ms
2+120
.3
1
31500µV
11.18
4
142dB
ELECTRICAL CHARACTERISTICS, OM2990-15SM, ST (-15 VOLTS)
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
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
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
circuit level.
OUT
RLN
RLD
OS
MAX
5 mA < IO < 300 mA 1-15.30-14.70V
Q
DO
ON
R
IO < 300 mA120m A
IO = 300 mA , VIN= -15 V1,260
-16 V VIN -26 V,1+85m V
I
= 5 mA2+130
OUT
50 mA I
OUT
IO= 100 mA 1
100 mV 2
DV
O
IO= 300 mA1
DVO 100 mV 2
IO= 5 mA,
10 Hz - 100 kHz
RL= 1 11 50m A
V
= 1 V
ripple
I
= 5 mA, f = 1 kHz
OUT
= 47 µF (unless otherwise specified).
OUT
2-15.75-14.25
225
300 mA1+135m V
ms
2+205
.3
1
31900
2140
1280m A
4
142dB
V
µV
V
mA
V
µV
ELECTRICAL CHARACTERISTICS, OM2990-5.2NK, NM, NT (-5.2 VOLTS)
Test Conditions are -55°C TA 125°C, VIN= -10.2 V, C