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DA9220

High-Performance Dual-Channel DC-DC Converter

Datasheet

Revision 2.1

17-Sep-2020

CFR0011-120-00

10 of 62

3.5

Buck Characteristics

Unless otherwise noted, the following is valid for TJ = -40 °C to +125 °C, VSYS = 2.5 V to 5.5 V

Table 8: Buck Electrical Characteristics

Parameter

Description

Conditions

Min

Typ

Max

Unit

External Electrical Conditions

VIN

Input voltage

VIN = VSYS

2.5

5.5

COUT

Output capacitance, per

phase, including voltage and

temperature coefficient

-40 %

2 x 10

+30 %

μF

ESRCOUT

Output capacitor series

resistance, per phase

f > 100 kHz

mΩ

Inductor value, per phase,

including current and

temperature dependence

-50 %

0.1

+20 %

μH

DCRL

Inductor DC resistance

mΩ

Electrical Performance

VOUT

Output voltage,

programmable in 10 mV

steps

IOUT = 0 mA to IMAX

VIN = 2.5 V to 5.5 V

0.3

1.57

VOUT_LIM

Output voltage,

programmable in 10 mV

steps

IOUT = 0 mA to IMAX

VIN = 3.0 V to 5.5 V

0.3

1.9

ILIM

Current limit, programmable

per phase

Note 1

CHx_ILIM = 1010

-20 %

+20 %

VOUT_ACC

Output voltage accuracy,

including static line and load

regulation

VOUT

≥ 1 V

-1

VOUT_ACC

Output voltage accuracy,

including static line and load

regulation

VOUT < 1 V

-10

VTHR_PG_RISE

Power good voltage

threshold for rising

Referred to VOUT

-80

-50

-20

VTHR_PG_DWN

Power good voltage

threshold for falling

Referred to VOUT

-160

-130

-100

VTHR_HV

High VOUT voltage threshold

Referred to VOUT

100

150

200

VOUT_TR_LINE

Line transient response

VIN = 3 V to 3.6 V

IOUT = 0.5 * IMAX

dt = 10

μs

fSW

Switching frequency, post-

trim

MHz

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