ADP5301ACBZ-3-R7 datasheet(3/21 Pages) AD

Part #	ADP5301ACBZ-3-R7

Description	50 mA/500 mA, High Efficiency,Ultralow Power Step-Down Regulator

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Manufacturer	AD [Analog Devices]

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Data Sheet

ADP5301

Rev. A | Page 3 of 21

FUNCTIONAL BLOCK DIAGRAM

VOUTOK

MODE

INTERNAL

FEEDBACK

RESISTOR

DIVIDER

SOFT

START

90%

87%

FB

CONTROL

LOGIC

ILIM_PWM

ILIM_HYS

STANDBY

0.808V

–0.6A(PWM)

0.8V

V TO I

0A(HYS)

0.8V

PWM

DRIVER

PVIN

SW

PGND

FB

1.2V

0.4V

SYNC

MODE

1.2V

0.4V

PVIN

UVLO

BAND GAP BIAS

AND

HOUSEKEEPING

KEEP ALIVE BLOCK

2.06V

2.00V

EN

SYNC/

MODE

DRIVER

PVIN

Σ

VID

AGND

2MHz

OSC

SLOPE

COMPENSATION

Figure 2.

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ADP5301ACBZ-3-R7 Datasheet(PDF) 3 Page - Analog Devices

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