ADP5301 datasheet(5/21 Pages) AD

Part #	ADP5301

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

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5 / 21 page

Data Sheet

ADP5301

Rev. A | Page 5 of 21

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

SW PIN

High-Side Power FET On Resistance

RDS (ON) H

324

470

mΩ

Pin to pin measurement

Low-Side Power FET On Resistance

RDS (ON) L

196

320

mΩ

Pin to pin measurement

Current-Limit in PWM Mode

ILIM_PWM

800

1000

1200

mA

SYNC/MODE = high

Peak Current in Hysteresis Mode

ILIM_HYS

265

mA

SYNC/MODE = low

Minimum On Time

tMIN_ON

40

70

ns

VOUTOK PIN

Monitor Threshold

VOUTOK (RISE)

87

90

93

%

Monitor Hysteresis

VOUTOK (HYS)

3

%

Monitor Rising Delay

tVOUTOK_RISE

40

µs

Monitor Falling Delay

tVOUTOK_FALL

10

µs

Leakage Current

IVOUTOK_LEAKAGE

0.1

1

µA

Output Low Voltage

VOUTOK_LOW

50

80

mV

IVOUTOK = 100 µA

SOFT START

Default Soft Start Time

tSS

350

µs

Factory trim, 1 bit (350 µs and 2800 µs)

Start-Up Delay

tSTART_DELAY

2

ms

Delay from the EN pin being pulled high

COUT DISCHARGE SWITCH ON RESISTANCE

RDIS

290

Ω

THERMAL SHUTDOWN

Threshold

TSHDN

142

°C

Hysteresis

THYS

127

°C

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