Data Sheet Rev. G, November 2023 | Subject to change without notice

11 of 16

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ACT4529

40 V/3.0 A CV/CC Buck Converter Featuring QC2.0, USB Auto-Detect and USB-PD

®

Typical Application Circuit

BOM List for 2.4 A Car Charger

ITEM

REFERENCE

DESCRIPTION

MANUFACTURER

QTY

1

U1

IC, ACT4529, SOP-8EP

Active-Semi

1

2

C1

Capacitor, Electrolytic, 47 µF / 35 V

Murata, TDK

1

3

C2

Capacitor, Ceramic, 10 µF / 25 V, 1206, SMD

Murata, TDK

1

4

C3

Capacitor, Ceramic, 22 nF / 25 V, 0603, SMD

Murata, TDK

1

5

C4

Capacitor, Ceramic, 22 µF / 16 V, 1206, SMD

Murata, TDK

1

6

C5

Capacitor, Electrolytic, 220 µF / 16 V

Murata, TDK

1

7

C6

Capacitor, Ceramic, 2.2 µF / 16 V, 0805, SMD

Murata, TDK

1

8

L1

Inductor, 40 µH, 4 A, 20%

1

9

D1

Diode, Schottky, 40 V /5 A, SK54L

Panjit

1

10

Rcs

Chip Resistor, 20 m

Ω, 1206, 1%

Murata, TDK

1

U1

ACT4529

HSB

IN

SW

4.5V to 40V

DM

Rcs

20mΩ

CSP

DP

Vout

GND

D-

D+

GND

CSN

5V/9V/12V

C2

10μF

C3

22nF

C5

220μF

C1

47μF

C4

22μF

C6

2.2μF

D1

SK54L

L1

40μH

PDC

USB-PD Controller

I/O

CC1

CC2

CC1

CC2