ACT88320 datasheet(12/57 Pages) QORVO

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Data Sheet Rev. E, November 2019 | Subject to change without notice

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ACT88320

Advanced PMU with Inrush Control and Bypass Switch

INTERNAL STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS REGULATOR: (BUCK1)

(VIN = 5V, TA = 25°C, unless otherwise specified.)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Input Operating Voltage Range

2.7

5.5

Output Voltage Programming Range

See CMI section for programming details

0.6

4.0

Standby Supply Current, Low Power

Mode Enabled

VOUT_B1 = 103% setpoint, Enabled, VOUT_B1

setpoint = 1.0V, No Load

µA

Shutdown Current

Regulator Disabled

µA

Output Voltage Accuracy

VOUT_B1 = default CMI voltage, continuous PWM

mode

-1

VNOM

Output Voltage Accuracy

VOUT_B1 = default CMI voltage, PFM mode

-2

VNOM

Line Regulation

VOUT_B1 = default CMI voltage, PWM Regulation

0.1

%/V

Load Regulation

VOUT_B1 = at default CM, PWM Regulation

0.1

%/A

Power Good Threshold

VOUT_B1 Rising

92.5

%VNOM

Power Good Hysteresis

VOUT_B1 Falling

%VNOM

Overvoltage Fault Threshold

VOUT_B1 Rising

107.5

110

112.5

%VNOM

Overvoltage Fault Hysteresis

VOUT_B1 Falling

%VNOM

Switching Frequency

VOUT_B1 ≥ 20% of VNOM, Configurable

-5%

1.125 /

2.25

+5%

MHz

Soft-Start Period Tset

10% to 90% VNOM

480

600

µs

Current Limit, Cycle-by-Cycle

4.14

4.6

5.06

Current Limit, Shutdown

% compared to Current Limit, cycle-by-cycle

112.5

122.5

132.5

Current Limit, Warning

% compared to Current Limit, cycle-by-cycle

67.5

82.5

PMOS On-Resistance

ISW = -1A, VIN = 5.0V

mΩ

NMOS On-Resistance

ISW = 1A, VIN = 5.0V

mΩ

SW Leakage Current

VIN = 5.5V, VSW = 0V

µA

VIN = 5.5V, VSW = 5.5V

µA

Dynamic Voltage Scaling Rate

3.50

mV/µs

Output Pull Down Resistance

Enabled when regulator disabled

4.4

8.75

Ohms

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