Specification	LM340S-5.0/NOPB

Current - Output	1.5 A
Current - Quiescent (Iq)	8 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	TO-263AA, D2PAK (3 Leads + Tab), TO-263-4
PSRR	80 dB
Supplier Device Package	TO-263 (DDPAK-3)
Voltage - Input (Max) [Max] [custom]	35 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max) [Max]	2 V

LM340-MIL Series

1.5A, Fixed Output Linear Regulator

Part	Voltage Dropout (Max) [Max]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Mounting Type	Voltage - Input (Max) [Max] [custom]	Current - Quiescent (Iq)	Number of Regulators	Protection Features	Supplier Device Package	Output Type	Package / Case	Output Configuration	PSRR	Current - Output
Texas Instruments LM340K-5.0/NOPB	2 V	125 °C	5 V	Through Hole	35 V	6 mA	1	Over Current Short Circuit	TO-3-2	1.81 mOhm	TO-204AA TO-3	Positive	70 dB	1.5 A
Texas Instruments LM340AS-5.0/NOPB	2 V	125 °C	5 V	Surface Mount	35 V	6 mA	1	Over Current Short Circuit	TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	70 dB	1 A
Texas Instruments LM340SX-5.0/NOPB	2 V	125 °C	5 V	Surface Mount	35 V	8 mA	1		TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	80 dB	1.5 A
Texas Instruments LM340S-5.0	2 V	125 °C	5 V	Surface Mount	35 V	8 mA	1		TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	80 dB	1.5 A
Texas Instruments LM340SX-5.0	2 V	125 °C	5 V	Surface Mount	35 V	8 mA	1		TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	80 dB	1.5 A
Texas Instruments LM340ASX-5.0/NOPB	2 V	125 °C	5 V	Surface Mount	35 V	6 mA	1	Over Current Short Circuit	TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	70 dB	1 A
Texas Instruments LM340S-5.0/NOPB	2 V	125 °C	5 V	Surface Mount	35 V	8 mA	1		TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	80 dB	1.5 A
Texas Instruments LM340LAH-12/NOPB	2 V	70 °C	12 V	Through Hole	35 V	6 mA	1	Over Current Short Circuit		1.81 mOhm	TO-205AD TO-39-3 Metal Can	Positive	70 dB	100 mA
Texas Instruments LM340SX-12	2 V	125 °C	12 V	Surface Mount	35 V	8 mA	1		TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	80 dB	1.5 A
Texas Instruments LM340S-12/NOPB	2 V	125 °C	12 V	Surface Mount	35 V	8 mA	1		TO-263 (DDPAK-3)	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	Positive	80 dB	1.5 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	$ 2.16
		10	$ 1.94
		45	$ 1.83
		135	$ 1.56
		270	$ 1.47
		540	$ 1.28
		1035	$ 1.06
		2520	$ 0.99
		5040	$ 0.95
Newark	Each	1	$ 2.06
		10	$ 1.52
		100	$ 1.31
		900	$ 1.15
		1350	$ 1.11
		2700	$ 1.08
		5400	$ 1.05
Texas Instruments	TUBE	1	$ 1.63
		100	$ 1.34
		250	$ 0.96
		1000	$ 0.73

Description

General part information

LM340-MIL Series

The LM340-MIL monolithic 3-pin positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.5-A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

Considerable effort was expended to make the regulator easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.