DA9220 datasheet(11/62 Pages) DIALOG

номер детали	DA9220

подробное описание детали	High-Performance Dual-Channel DC-DC Converter

PDF	62 Pages

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DA9220

High-Performance Dual-Channel DC-DC Converter

Datasheet

Revision 2.1

17-Sep-2020

CFR0011-120-00

11 of 62

Parameter

Description

Conditions

Min

Typ

Max

Unit

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

for each phase at the LX

node, see CHx_PD_DIS

VIN = 3.7 V

VOUT = 0.5 V

100

150

200

RON_PMOS

On resistance of switching

PMOS, per phase

VIN = 3.7 V

mΩ

RON_NMOS

On resistance of switching

NMOS, per phase

VIN = 3.7 V

mΩ

AUTO Mode

VOUT_TR_LD_1

Load transient response

1-phase

VOUT = 1 V

IOUT = 0 A to 5 A

dl/dt = 10

A/μs

±5

PFM Mode

IQ_PFM_1PH

Quiescent current in PFM

1-phase

VIN = 3.7 V

No load

No switching

μA

Note 1

tON > 40 ns

3.6

Performance and Supervision Characteristics

Table 9: Electrical Characteristics

Parameter

Description

Conditions

Min

Typ

Max

Unit

Electrical Performance

VTHR_POR

Power-on-reset threshold

Threshold for AVDD falling

2.1

2.25

VTHR_POR_HY

Power-on-reset hysteresis

200

TWARN

Thermal warning

temperature threshold

115

125

135

°C

TCRIT

Thermal shutdown

temperature threshold

130

140

150

°C

IIN_OFF

Supply current

OFF state

TA = 27 °C

IC_EN = 0

0.1

μA

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