LTC3563 datasheet(6/16 Pages) LINER

부품명	LTC3563

상세설명	500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage

PDF	16 Pages

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제조업체	LINER [Linear Technology]

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6 / 16 page

LTC3563

3563f

PI FU CTIO S

VOUT(Pin1):OutputVoltageFeedback.Aninternalresistive

divider divides the output voltage down for comparison

to the internal 0.6V reference voltage.

VIN (Pin 2): Power Supply Pin. Must be closely decoupled

to GND.

GND (Pin 3): Ground Pin.

SW (Pin 4): Switch Node Connection to Inductor. This pin

connects to the drains of the internal main and synchronous

power MOSFET switches.

VSEL(Pin5):OutputVoltageSelectionPin.Thispincontrols

the regulated output voltage. When tied to GND, VOUT is

1.28V. When ﬂoating or connecting this pin to VIN, VOUT

becomes 1.87V.

RUN (Pin 6): Converter Enable Pin. Forcing this pin above

1.5V enables this part, while forcing it below 0.3V causes

the device to shut down. In shutdown, all functions are

disabled drawing <1µA supply current. This pin must be

driven; do not ﬂoat.

Exposed Pad (Pin 7): GND. The Exposed Pad is ground. It

must be soldered to PCB ground to provide both electrical

contact and optimum thermal performance.

LTC3563 데이터시트(PDF) 6 Page - Linear Technology