DA9062 datasheet(19/101 Pages) RENESAS

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DA9062

PMIC for Applications Requiring up to 8.5 A

Datasheet

Revision 3.8

15-Feb-2022

CFR0011-120-00

19 of 99

5.5

Buck Converters

5.5.1

Buck1, Buck2

Unless otherwise noted, the following is valid for TJ = -40 °C to +125 ºC.

Table 14: Buck1, Buck2 Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Input voltage

VDD

VDD = VSYS

2.8

5.5

Output capacitor

COUT

Half-current mode

including voltage and

temperature coefficient

-50%

2 * 22

+30%

µF

Full-current mode

including voltage and

temperature coefficient

-50%

2 * 47

+30%

Output capacitor ESR

RCOUT_ESR

COUT = 2 * 22 µF

f > 100 kHz

including wiring parasitics



COUT = 2 * 47 µF

f > 100 kHz

including wiring parasitics

7.5

Inductor value

LBUCK

Including current and

temperature dependence

0.7

1.0

1.3

µH

Inductor resistance

RL_DCR

100



PWM mode

Output voltage

VBUCK

Programmable in 10 mV steps

Note 1

0.3

1.57

Output voltage accuracy

VBUCK_ACC

VDD = 4.2 V, VBUCK = 1.03 V

excluding static line/load

regulation and voltage ripple

TA = 25 ºC

-1%

+1%

Including static line/load

regulation and voltage ripple

Note 2

-3%

+3%

Transient load regulation

VTR_LOAD

VDD = 3.6 V, VBUCK = 1.15 V

IOUT = 200 mA to 1000 mA

di/dt = 3 A/µs

L = 1 µH

Transient line regulation

VTR_LINE

VDD = 3.0 V to 3.6 V

IOUT = 500 mA

tR = tF = 10 µs

0.2

Output current

IOUT

Half-current mode

1250

Full-current mode

Note 4

2500

Current limit

ILIM

Half-current mode

controlled in BUCK<x>_ILIM

in 100 mA steps

700

2200

Full-current mode

controlled in BUCK<x>_ILIM

in 200 mA steps

1400

4400

Current limit accuracy

ILIM_ACC

-20%

20%

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