DA9131 datasheet(13/56 Pages) DIALOG

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DA9131

High-Performance, Dual-Channel DC-DC Converter for

Mobile and Portable Applications

Datasheet

Revision 2.0

11-Aug-2021

CFR0011-120-00

13 of 56

Parameter

Description

Conditions

Min

Typ

Max

Unit

fSW

Switching frequency

MHz

tON_MIN

Minimum turn-on pulse

0 % duty is also supported

tBUCK_EN

Turn-on time

CHx_EN = high

μs

RPD

Output pull-down resistance

at the LX node, see

CHx_PD_DIS

VIN = 3.7 V

VOUT = 0.5 V

145

150

161

RON_PMOS

On resistance of switching

PMOS

VIN = 3.7 V

mΩ

RON_NMOS

On resistance of switching

NMOS

VIN = 3.7 V

mΩ

PWM Mode

IQ_PWM

Quiescent current

VIN = 3.7 V

No load

ηPWM

Efficiency

VIN = 3.6 V

VOUT = 1 V

IOUT = 10 % (IMAX) to 80 %

(IMAX)

AUTO Mode

VOUT_TR_LD

Load transient response

VOUT = 1 V

IOUT = 0 to 5 A at 25 °C

ambient

dl/dt = 10

A/μs

-40

PFM Mode

IQ_PFM

Quiescent current in PFM

1-phase

VIN = 3.7 V

No load

No switching

μA

ηPFM

Efficiency

VIN = 3.6 V

VOUT = 1 V

IOUT = 10 mA

Note 1

tON > 40 ns

Note 2

For short durations to meet peak current requirements, IOUT can be operated at up to 10 % higher than

the specified maximum operating condition. The part should not be operated in this mode for extended

periods and is not guaranteed for continuous operation.

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