ACT88430 datasheet(16/74 Pages) QORVO

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Data Sheet Rev. G, August 2021 | Subject to change without notice

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ACT88430

Advanced PMU for Microcontrollers and Solid State Drive Applications

BUCK2 ELECTRICAL CHARACTERISTICS, REGULATORS:

(VIN_B2 = 3.3V, TA = 25°C, unless otherwise specified.)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Operating Voltage Range

2.7

5.5

Output Voltage Range

Configured for 9.375mV steps

0.6

3.0

Configured for 12.5mV steps

0.8

4.0

Maximum Output Current

Supply Current, Standby

Low Power Mode Enabled

Regulator Only, No Load

(VOUT = VSET*1.05)

µA

Supply Current, Shutdown

Regulator Disabled

0.1

µA

Output Voltage Accuracy – PWM

Default output voltage, IOUT = 1A

-1%

VNOM

Output Voltage Accuracy - PFM

Default output voltage, IOUT = 1mA,

Average Ripple Voltage

-1%

VNOM

Line Regulation

Default output voltage, VIN_B2 = 3.3V to

5.5V, PWM mode

0.02

%/V

Load Regulation

Default output voltage, PWM Mode

0.04

%/A

Power Good Threshold

VOUT_B2 Rising

NOM

Power Good Hysteresis

VOUT_B2 Falling

NOM

Overvoltage Fault Threshold

VOUT_B2 Rising

107.5

110

112.5

NOM

Overvoltage Fault Hysteresis

VOUT_B2 Falling

NOM

Switching Frequency

VOUT_B2

≥ 20% of VNOM

2.15

2.25

2.36

MHz

Soft-Start Period – Programmable

Range

Configurable in 50us Steps

10% to 90% VNOM

150

300

485

µs

Soft-Start Period

Variation from set point

-25

+25

Internal High Side Peak Current

Limit (Cycle-by-Cycle) ILIMSET

B2_ILIMSET=00

B2_ILIMSET=01

B2_ILIMSET=10

B2_ILIMSET=11

4.0

3.0

2.0

Internal High Side Peak Current

Limit (Cycle-by-Cycle) Tolerance

At default ILIMSET

-10%

ILIMSET

+10%

At other set points

-15%

ILIMSET

+15%

Internal High Side Peak Current

Limit, Shutdown Level

Above ILIMSET = all settings

+15%

+22.5%

+30%

nternal High Side Peak Current

Limit, IRQ Triggered Level

Below ILIMSET = all settings

-17.5%

-25%

-32.5%

Internal High Side Peak Current

Limit IRQ Signal Deglitch Time

16 consecutive clocks at 2.25MHz

6.78

7.11

7.44

µs

PMOS On-Resistance

= -500mA, VIN_B2 = 3.3V

0.08

Ω

NMOS On-Resistance

= 500mA, VIN_B2 = 3.3V

0.05

Ω

SW Leakage Current – NMOS

VIN_B2 = 5.5V, VSW = 5.5V

µA

SW Leakage Current – PMOS

VIN_B2 = 5.5V, VSW = 0V

µA

Dynamic Voltage Scaling Rate

B2_SLEW=00

B2_SLEW=01

not allowed

14.0

mV/µs

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