DA9061 datasheet(20/82 Pages) DIALOG

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DA9061

Entry level PMIC for applications requiring up to 6 A

Datasheet

Revision 3.2

01-Mar-2016

CFR0011-120-00 Rev 5

20 of 82

Buck3

4.5.3

Unless otherwise noted, the following is valid for TA = -40 to +85 ºC.

Table 13: Buck3 electrical characteristics

Parameter

Symbol

Test conditions

Min

Typ

Max

Unit

Input voltage

VDD

2.8

5.5

Output capacitor

COUT

Including voltage and

temperature coefficient

-50%

2 * 22

+30%

µF

Output capacitor ESR

RCOUT_ESR

f > 100 kHz

including wiring parasitics



Inductor value

LBUCK

Including current and

temperature dependence

0.6

1.0

1.3

µH

Inductor resistance

RL_DCR

120



Output voltage

VBUCK

Programmable in 10 mV

steps

0.7

1.8

Output voltage accuracy

VBUCK_ACC

Including static line/load

regulation and voltage ripple

Note 1

-3%

+3%

Transient load

regulation

VTR_LOAD

VDD = 3.6 V

VBUCK = 1.35 V

IOUT = 200 to 1000 mA

dI/dt = 3 A/µs

VDD = 3.6 V

VBUCK = 1.35 V

IOUT = 200 to 1500 mA

dI/dt = 3 A/µs

Transient line regulation

VTR_LINE

VDD = 3.0 to 3.6 V

IOUT = 500 mA

tR = tF = 10 µs

0.2

Output current

IOUT

VDD - VBUCK ≥ 1.25 V

L > 0.9 µH

1500

VDD - VBUCK ≥ 1.00 V

L > 0.9 µH

1250

VDD - VBUCK ≥ 1.00 V

L > 0.6 µH

900

Current limit

ILIM

Controlled in BUCK3_ILIM in

100 mA steps

500

2000

Current limit accuracy

ILIM_ACC

-20

+20

Quiescent current in

OFF mode

IQ_OFF

µA

Quiescent current in

PWM mode

IQ_ON

IOUT = 0 mA

Switching frequency

2.85

3.15

MHz

Switching duty cycle

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