L4940XX12 datasheet, PDF - EEWORLD Datasheet

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L4940XX12: DescriptionFIXED POSITIVE LDO REGULATOR; Categorysemiconductor Power management; File Size1MB，25 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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L4940XX12 Overview

FIXED POSITIVE LDO REGULATOR

L4940XX12 Parametric

Parameter Name	Attribute value
state	ACTIVE
Adjustment type	Fixed Positive Voltage Low Dropout Linear Regulator Regulator

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L4940

1.5 A very low drop voltage regulator IC

Datasheet

production data

Table 1. Device summary

Order code

TO-220

L4940V5

L4940V85

TO-220

D²PAK

L4940D2T12-TR

D²PAK

L4940D2T5-TR

Output

voltages

8.5 V

12 V

Features

•

Precise 5, 8.5, 12 V outputs

•

Low dropout voltage (450 mV typ. at 1 A)

•

Very low quiescent current

•

Thermal shutdown

•

Short-circuit protection

•

Reverse polarity protection

Description

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.

April 2015

This is information on a product in full production.

DocID2141 Rev 14

1/25

www.st.com

L4940XX12 Related Products

	L4940XX12	L4940xx10	L4940xx5	L4940xx85	L4940XX
Description	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
Adjustment type	Fixed Positive Voltage Low Dropout Linear Regulator Regulator	Fixed Positive Voltage Low Dropout Linear Regulator Regulator	Fixed Positive Voltage Low Dropout Linear Regulator Regulator	Fixed Positive Voltage Low Dropout Linear Regulator Regulator	Fixed Positive Voltage Low Dropout Linear Regulator Regulator

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