DA9021 datasheet(30/142 Pages) DIALOG

30 / 142 page

DA9021/22

System PMIC with high efficiency USB power manager

Datasheet

Revision 2.5

17-Feb-2017

CFR0011-120-00 Rev 5

30 of 142

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Load transient

response

VTRLOAD

VDD = 3.6 V

IOUT = 1 mA to IMAX

tr = tf = 1 µs

PSRR

f = 10 Hz to 10 kHz

VDD = 3.6 V

IOUT = IMAX/2

Output noise

f = 10 Hz to 100 kHz

VDD = 3.6 V

IOUT = 5 mA to IMAX

μVrms

Quiescent current

in ON mode

IQON

Note 2

+0.3 %

of IOUT

μA

Quiescent current

in OFF mode

IQOFF

Note 2

μA

Turn on time

TON

10 % to 90 %

300

μs

Turn off time

TOFF

90 % to 10 %

Pull down

resistance in OFF

mode

ROFF

100



Note 1

Programmable in 50 mV steps, maximum output voltage is determined by VDD - VDROPOUT.

Note 2

Programmable in 25 mV increments with micro voltage ramp step size of 6.25 mV/µs while slewing.

8.7.6

LDOCORE

Table 19: LDOCORE (Ta = -25 ºC to +85 ºC)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Output voltage

VDDCORE

IOUT = 0 mA to IMAX

(when supplied from

VBAT)

2.45

2.15

2.5

2.2

2.55

2.25

Decoupling

capacitor

CIN

On VDD_REF

-35 %

220

+35 %

Stabilisation

capacitor

COUT

(including voltage and

temperature coefficient

@ 2.5 V)

-55 %

100

+35 %

ESR resistance

f > 1 MHz

0.1



Dropout voltage

VDROPOUT

IOUT < 10 µA ,

FOLLOWER mode

0.05

0.1

Max output current

IMAX

Maximum

quiescent current

POWERDOWN mode:

IOUT < 20 µA

µA

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