Integrated Circuits (ICs)

L4940V5

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STMicroelectronics

FIXED LDO VOLTAGE REGULATOR, 7V TO 17V, 500MV DROPOUT, 5VOUT, 1.5AOUT, TO-220-3 ROHS COMPLIANT: YES

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Integrated Circuits (ICs)

L4940V5

Active

STMicroelectronics

FIXED LDO VOLTAGE REGULATOR, 7V TO 17V, 500MV DROPOUT, 5VOUT, 1.5AOUT, TO-220-3 ROHS COMPLIANT: YES

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	L4940V5

Current - Output	1.5 A
Current - Quiescent (Iq)	8 mA
Current - Supply (Max) [Max]	50 mA
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive
Package / Case	TO-220-3
Protection Features	Reverse Polarity, Over Temperature, Short Circuit
PSRR	68 dB
Supplier Device Package	TO-220
Voltage - Input (Max) [Max]	17 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max)	0.9 V

L4940 Series

1.5 A very low drop voltage regulator IC

Part	Package / Case	Number of Regulators	PSRR	Voltage - Input (Max) [Max]	Current - Supply (Max) [Max]	Current - Quiescent (Iq)	Voltage Dropout (Max)	Supplier Device Package	Voltage - Output (Min/Fixed)	Output Configuration	Mounting Type	Protection Features	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]
STMicroelectronics L4940D2T5	D2PAK (2 Leads + Tab) TO-263-3 TO-263AB	1	68 dB	17 V	50 mA	8 mA	0.9 V	D2PAK	5 V	Positive	Surface Mount	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940V85	TO-220-3	1	68 dB	17 V	50 mA	8 mA	0.9 V	TO-220	8.5 V	Positive	Through Hole	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940V5	TO-220-3	1	68 dB	17 V	50 mA	8 mA	0.9 V	TO-220	5 V	Positive	Through Hole	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940D2T12-TR	D2PAK (2 Leads + Tab) TO-263-3 TO-263AB	1	61 dB	17 V	50 mA	8 mA	0.9 V	D2PAK	12 V	Positive	Surface Mount	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940D2T5-TR	D2PAK (2 Leads + Tab) TO-263-3 TO-263AB	1	68 dB	17 V	50 mA	8 mA	0.9 V	D2PAK	5 V	Positive	Surface Mount	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940D2T85-TR	D2PAK (2 Leads + Tab) TO-263-3 TO-263AB	1	68 dB	17 V	50 mA	8 mA	0.9 V	D2PAK	8.5 V	Positive	Surface Mount	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940V12	TO-220-3	1	61 dB	17 V	50 mA	8 mA	0.9 V	TO-220	12 V	Positive	Through Hole	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C
STMicroelectronics L4940V10	TO-220-3	1	62 dB	17 V	50 mA	8 mA	0.9 V	TO-220	10 V	Positive	Through Hole	Over Temperature Reverse Polarity Short Circuit	1.5 A	-40 C	150 °C

Pricing

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

Distributor	Package	Quantity	$

Digikey	N/A	13244	$ 1.70
Newark	Each	1	$ 1.76
		10	$ 1.18
		100	$ 1.12
		500	$ 0.98
		1000	$ 0.85
		2500	$ 0.71
		10000	$ 0.68

Description

General part information

L4940 Series

The L4940 series of three-terminal positive regulators is available in TO-220 and D²PAK packages and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications. Thanks to their very low input/output voltage drop, these devices are particularly suitable for battery-powered equipment, reducing consumption and prolonging battery-life. Each type employs internal current limiting, anti-saturation circuit, thermal shutdown and safe area protection.

L4940V5

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L4940V5

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Technical Specifications

L4940 Series

Pricing

Description

L4940 Series

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L4940 Series