DIO59618A datasheet(5/33 Pages) DIOO

Part #	DIO59618A

Description	30 V, 1.5 A High Efficiency Single-cell Li-Ion Battery Charger with Integrated Power Path

PDF	33 Pages

Scroll/Zoom	100%

Manufacturer	DIOO [DIOO MICROCIRCUITS CO., LTD]

Direct Link	https://www.dioo.com/#/

Logo

5 / 33 page

DIO59618A

Version 1.0, Oct 2025

www.dioo.com

1. Pin Assignment and Functions

Figure 1.

QFN3*3-20 (Top view)

Pin No.

Pin Name

Description

IO1

Output voltage = VLDO when IO1_SET = 1 set by I2C

Output voltage = 0 when IO1_SET = 0 set by I2C

SDA

I2C interface

SCL

I2C interface

KEY

Button input

VBAT

Battery voltage. Connect to the positive (+) terminal of the battery pack.

Bypass with a 10 μF capacitor to GND if the battery is connected through long

leads.

VSYS

System voltage

PGND

Power ground

Switching node. Connect to output inductor.

VOUT1

Boost output

VOUT2

VOL/VOR power supply

VBUS

Charger input voltage. Bypass with a 10 μF capacitor to GND.

VOR

Right earphone power port

VOL

Left earphone power port

COMR

Communicate interface for MCU

COML

Communicate interface for MCU

DIO59618A Datasheet(PDF) 5 Page - DIOO MICROCIRCUITS CO., LTD

DIO59618A Datasheet(HTML) 5 Page - DIOO MICROCIRCUITS CO., LTD

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

Datasheet Download

Link URL