ACT88321 datasheet(21/55 Pages) QORVO

21 / 55 page

ACT88321

Advanced PMIC with 3 Bucks, 2 LDOs, and Load Bypass Switches

Datasheet Rev. D , June 17, 2022 | Subject to change without notice

21 of 55

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LDO2 ELECTRICAL CHARACTERISTICS

(AVIN = 3.3V, Tj = -40°C to +125°C, unless otherwise specified.)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Operating Voltage Range

2.7

5.5

Output Voltage Range

Configurable in 50mV steps

0.6

3.75

Output Current

AVIN = 2.7V to 5.5V, LDO2_ILIM=1

0.39

Output Voltage Accuracy (Note1)

At default output voltage setting

AVIN - VLDO2_OUT > 0.4V

-1

VSET

Output Voltage Accuracy

At default output voltage setting

AVIN - VLDO2_OUT > 0.4V

-1.5

VSET

1.5

Line Regulation

AVIN - VLDO2_OUT > 0.4V

AVIN = 2.7V to 5.5V

ILDO2_OUT = 1mA

0.01

% / V

Load Regulation

ILDO2_OUT = 1mA to 390mA, LDO2_ILIM=1

AVIN - VLDO2_OUT > 0.4V

0.025

% / A

Supply Current

Regulator Enabled, No Load

µA

Regulator Disabled

µA

Soft-Start Period

LDO2_SS = 0. VLDO1 = 10% to 90%

LDO2_SS = 1. VLDO1 = 10% to 90%

200

360

µs

Power Good Threshold

VLDO2_OUT Rising

%VNOM

Power Good Hysteresis

VLDO2_OUT Falling

%VNOM

Overvoltage Fault Threshold

VLDO2_OUT Rising

107

110

113

%VNOM

Overvoltage Fault Hysteresis

VLDO2_OUT Falling

%VNOM

Dropout Voltage

ILDO2 = 200mA, AVIN > 2.7V, LDO2_ILIM=0

200

ILDO2 = 400mA, AVIN > 2.7V, LDO2_ILIM=1

400

ILDO1 = 200mA, VIN_LDO = 1.6V, LDO1_ILIM=0

225

ILDO1 = 400mA, VIN_LDO = 1.6V, LDO1_ILIM=1

670

Discharge Resistance

Enabled when regulator disabled

Ω

Output Current Limit

AVIN = 2.7V to 5.5V, AVIN – VLDO1 > 0.4V

LDO2_ILIM=0

LDO2_ILIM=1

310

390

400

500

600

Short Output Foldback Current

Note1: TA = 25°C

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