L4915 datasheet(1/7 Pages) STMICROELECTRONICS

No de pièce	L4915

Description	ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER

PDF	7 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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L4915

ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER

June1993

PRELIMINARY DATA

PIN CONNECTION

POWER MINIDIP

ORDERING NUMBER : L4915

.

OUTPUT VOLTAGE ADJUSTABLE FROM

4TO 11V

.

HIGH OUTPUT CURRENT (up to 250mA)

.

HIGH RIPPLE REJECTION

.

HIGH LOAD REGULATION

.

HIGH LINE REGULATION

.

SHORT CIRCUIT PROTECTION

.

THERMAL SHUT DOWN WITH HYSTERESIS

.

DUMP PROTECTION

DESCRIPTION

This circuit combines both a filter and a voltage

regulator in order to provide a high ripple rejection

over a wide input voltage range.

A supervisor low-pass loop of the element prevents

the output transistor from saturation at low input

voltage.

The non linear behaviour of this control circuitry

allows a fast settling of the filter.

1/7

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