L4964 datasheet(1/13 Pages) STMICROELECTRONICS

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L4964

April 1993

HIGH CURRENT SWITCHING REGULATOR

.

4 A OUTPUT CURRENT

.

5.1 V TO 28 V OUTPUT VOLTAGE RANGE

.

0 TO 100 % DUTY CYCLE RANGE

.

PRECISE (

± 3 %) ON-CHIP REFERENCE

.

SWITCHING FREQUENCY UP TO 120 KHz

.

VERY HIGH EFFICIENCY (UP TO 90 %)

.

VERY FEW EXTERNAL COMPONENTS

.

SOFT START

.

RESET OUTPUT

.

CURRENT LIMITING

.

INPUT FOR REMOTE INHIBIT AND SYN-

CHRONUS PWM

.

THERMAL SHUTDOWN

DESCRIPTION

The L4964 is a stepdown power switching regulator

delivering 4A at a voltage variable from 5.1V to 28V.

Features of the device include overload protection,

soft start, remote inhibit, thermal protection, a reset

output for microprocessors and a PWM comparator

input for synchronization in multichip configurations.

The L4964 is mounted in a 15-lead Multiwatt

® plas-

tic power package and requires very few external

components.

Efficient operation at switching frequencies up to

120kHz allows a reduction in the size and cost of ex-

ternal filter components.

MUL TIW AT T15 Verti cal

(Plastic Package)

ORDERING NUMBER : L4964

MULTI WATT15 Horizo ntal

(Plastic Package)

ORDERING NUMBER : L4964HT

Pins 1, 4, 15 must not be connected. Leave open circuit.

PIN CONNECTION (top view)

1/13

Số phần tương tự - L4964

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	L4964	1Mb / 13P	HIGH CURRENT SWITCHING REGULATOR Jul-2003
STMicroelectronics	L4964	1Mb / 13P	HIGH CURRENT SWITCHING REGULATOR Jul-2003

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