Classification | PRIVATE

Data Sheet Rev. B, January 2025 | Subject to change without notice

12 of 19

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ACT4533A/B

Wide Input Sensorless CC/CV Step-Down DC/DC Converter

Figure 10: Typical Application Circuit for 5 V/2.4 A Car Charger with OVP and Short Circuit Protection

Table 3:

BOM List for 2.4 A Car Charger

ITEM

REFERENCE

DESCRIPTION

MANUFACTURER

QTY

1

U1

IC, ACT4533BYH, SOP-8EP

Active-Semi

1

2

C1

Capacitor, Electrolytic, 47 µF/50 V, 6.3 x 7 mm

Murata, TDK

1

3

C2

Capacitor, Ceramic, 10 µF/50 V, 1206, SMD

Murata, TDK

1

4

C3

Capacitor, Ceramic, 2.2 nF/6.3 V, 0603, SMD

Murata, TDK

1

5

C4

Capacitor, Ceramic, 22 nF/50 V, 1206, SMD

Murata, TDK

1

6

C5

Capacitor, Ceramic, 1 nF/10 V, 0603, SMD

Murata, TDK

1

7

C6

Capacitor, Ceramic, 10 µF/10 V, 0603, SMD

Murata, TDK

1

8

C7

Capacitor, Electrolytic, 220 µF/10 V, 6.3 х 7 mm

Murata, TDK

1

9

C8

Capacitor, Electrolytic, 2.2 µF/50 V, 6.3 х 7 mm

Murata, TDK

1

10

L1

Inductor, 40 µH, 5 A, 20%, SMD

Tyco Electronics

1

11

D1

Diode, Schottky, 40 V/5 A, SK54BL

Diodes

1

12

R1

Chip Resistor, 7.87 kΩ, 0603, 1%

Murata, TDK

1

13

R2

Chip Resistor, 51 kΩ, 0603, 1%

Murata, TDK

1

14

R3

Chip Resistor, 15 kΩ, 0603, 5%

Murata, TDK

1

15

R4

Chip Resistor, 9.76 kΩ, 0603, 1%

Murata, TDK

1

16

R5

Chip Resistor, 150 kΩ, 0603, 1%

Murata, TDK

1

17

R6

Chip Resistor, 68 kΩ, 0603, 1%

Murata, TDK

1

18

R7

Chip Resistor, 47 kΩ, 0603, 5%

Murata, TDK

1

19

R8

Chip Resistor, 2.2 kΩ, 0603, 5%

Murata, TDK

1

20

R9

Chip Resistor, 820 Ω, 0603, 5%

Murata, TDK

1