SC1112STRT datasheet(4/23 Pages) SEMTECH

部件名	SC1112STRT

功能描述	Triple Low Dropout Regulator Controllers

PDF	23 Pages

Scroll/Zoom	100%

制造商	SEMTECH [Semtech Corporation]

网页	http://www.semtech.com

标志

4 / 23 page

 2006 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC1112

VTTGATE

VTTIN=1.5V

The delay capacitor does not

begin charging until VTTIN has

reached 1.5V and VTT is above

the powergood threshold of

1.08V.

Once DELAY reaches 1.5V,

the PWRGD signal goes high.

VTTGATE initially turns on

hard, until VTT reaches

regulation. Then VTTGATE

drops to its normal regulating

level.

PWRGD

DELAY

VTT

VTTIN

DELAY=1.5V

NORMAL STARTUP CONDITION

The delay capacitor does not

begin charging until VTTIN has

reached 1.5V and VTT is below

the short circuit threshold of

0.7V.

VTTGATE initially turns on hard

and is latched off when DELAY

reaches 1.5V and VTT is below

0.7V

DELAY

VTT

PWRGD

VTTIN

VTTGATE

VTTIN=1.5V

SHORT-CIRCUIT STARTUP

DELAY=1.5V

Timing Diagrams

SC1112STRT 数据表(PDF) 4 Page - Semtech Corporation

SC1112STRT 数据表(HTML) 4 Page - Semtech Corporation

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