DA9062 datasheet(24/101 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

24 of 99

5.5.3

Buck4

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

Table 16: Buck4 Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Input voltage

VDD

VDD = VSYS

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

0.7

1.0

1.3

µH

Inductor resistance

RL_DCR

100



PWM Mode

Output voltage

VBUCK

Programmable in 10 mV steps

Note 1

0.53

1.8

Output voltage accuracy

VBUCK_ACC

Including static line/load

regulation and voltage ripple

Note 2

-3%

+3%

Transient load regulation

VTR_LOAD

VDD = 3.6 V, VBUCK = 1.35 V

IOUT = 200 mA to 1000 mA

dI/dt = 3 A/µs

L = 1 µH

VDD = 3.6 V, VBUCK = 1.35 V

IOUT = 200 mA to 1500 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

VDD - VBUCK

≥ 1.25 V

Note 4

1500

VDD - VBUCK

≥ 1.00 V

1250

Current limit

ILIM

Controlled in BUCK4_ILIM

in 100 mA steps

700

2200

Current limit accuracy

ILIM_ACC

ILIM = 700 mA to 1400 mA

-15%

+25%

ILIM = 1400 mA to 2200 mA

-10%

+15%

Quiescent current in

OFF mode

IQ_OFF

µA

Quiescent current in

PWM mode

IQ_ON

IOUT = 0 mA

TA = 25 ºC

Switching frequency

Note 3

OSC_FRQ = 0000

2.85

3.15

MHz

Switching duty cycle

14%

83%

Turn-on time

tON

VBUCK = 1.35 V

BUCK_SLOWSTART = disabled

SLEW_RATE = 10 mV/1 µs

BUCK4_ILIM = 1500 mA

0.39

1.2

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