Integrated Circuits (ICs)

LM2990S-12

Obsolete

Texas Instruments

IC REG LIN -12V 1.8A DDPAK

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Integrated Circuits (ICs)

LM2990S-12

Obsolete

Texas Instruments

IC REG LIN -12V 1.8A DDPAK

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DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM2990S-12

Current - Output	1.8 A
Current - Quiescent (Iq)	1 mA
Current - Supply (Max) [Max]	5 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Negative
Output Type	1.81 mOhm
Package / Case	TO-263AA, D2PAK (3 Leads + Tab), TO-263-4
PSRR	52 dB
Supplier Device Package	TO-263 (DDPAK-3)
Voltage - Input (Max) [Max]	-26 V
Voltage - Output (Min/Fixed)	-12 V
Voltage Dropout (Max) [Max]	1 V

LM2990 Series

1-A, negative low-dropout voltage regulator

Part	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Output Configuration	Current - Supply (Max) [Max]	Mounting Type	Voltage - Input (Max) [Max]	Number of Regulators	PSRR	Supplier Device Package	Package / Case	Voltage Dropout (Max) [Max]	Current - Quiescent (Iq)	Current - Output	Voltage - Output (Min/Fixed) [Min]
Texas Instruments LM2990T-12/NOPB	1.81 mOhm	125 °C	-40 °C	-12 V	Negative	5 mA	Through Hole	-26 V	1	52 dB	TO-220-3	TO-220-3	1 V	1 mA	1.8 A
Texas Instruments LM2990S-5.0/NOPB	1.81 mOhm	125 °C	-40 °C		Negative	5 mA	Surface Mount	-26 V	1	58 dB	TO-263 (DDPAK-3)	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1 V	1 mA	1.8 A	-5 V
Texas Instruments LM2990S-12	1.81 mOhm	125 °C	-40 °C	-12 V	Negative	5 mA	Surface Mount	-26 V	1	52 dB	TO-263 (DDPAK-3)	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1 V	1 mA	1.8 A
Texas Instruments LM2990T-15	1.81 mOhm	125 °C	-40 °C	-15 V	Negative	5 mA	Through Hole	-26 V	1	52 dB	TO-220-3	TO-220-3	1 V	1 mA	1.8 A
Texas Instruments LM2990SX-5.0/NOPB	1.81 mOhm	125 °C	-40 °C		Negative	5 mA	Surface Mount	-26 V	1	58 dB	TO-263 (DDPAK-3)	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1 V	1 mA	1.8 A	-5 V
Texas Instruments LM2990SX-15	1.81 mOhm	125 °C	-40 °C	-15 V	Negative	5 mA	Surface Mount	-26 V	1	52 dB	TO-263 (DDPAK-3)	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1 V	1 mA	1.8 A
Texas Instruments LM2990T-5.2	1.81 mOhm	125 °C	-40 °C		Negative	5 mA	Through Hole	-26 V	1	58 dB	TO-220-3	TO-220-3	1 V	1 mA	1.8 A	-5.2 V
Texas Instruments LM2990SX-5.0	1.81 mOhm	125 °C	-40 °C		Negative	5 mA	Surface Mount	-26 V	1	58 dB	TO-263 (DDPAK-3)	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1 V	1 mA	1.8 A	-5 V
Texas Instruments LM2990T-12	1.81 mOhm	125 °C	-40 °C	-12 V	Negative	5 mA	Through Hole	-26 V	1	52 dB	TO-220-3	TO-220-3	1 V	1 mA	1.8 A
Texas Instruments LM2990T-15/NOPB	1.81 mOhm	125 °C	-40 °C	-15 V	Negative	5 mA	Through Hole	-26 V	1	52 dB	TO-220-3	TO-220-3	1 V	1 mA	1.8 A

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 7.73
		10	$ 5.28
		25	$ 4.65
		100	$ 3.95

Description

General part information

LM2990 Series

The LM2990 is a three-terminal, low-dropout, 1-A negative voltage regulator available with fixed output voltages of −5 V, −5.2 V, −12 V, and −15 V.

The LM2990 uses circuit design techniques to provide low-dropout and low-quiescent current. The dropout voltage at 1-A load current is typically 0.6 V and an ensured worst-case maximum of 1 V over the entire operating temperature range. The quiescent current is typically 1 mA with 1-A load current and an input-output voltage differential greater than 3 V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VOUT− VIN≤ 3 V). Output voltage accuracy is ensured to ±5% over load and temperature extremes.

The LM2990 also implements short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when overloaded for an extended period of time.

Documents

Technical documentation and resources