DIO1298

Version 1.2, Apr 2026

www.dioo.com

© 2026 Dioo Microcircuits Co., Ltd. Jiangsu

2

2. Absolute Maximum Ratings

Exceeding the maximum ratings listed under Absolute Maximum Ratings when designing is likely to

damage the device permanently. Do not design to the maximum limits because long-time exposure to them

might impact the device’s reliability. The ratings are obtained over an operating free-air temperature range

unless otherwise specified.

Symbol

Parameter

Rating

Unit

VIN

IN to GND (continuous)

-0.3 to 35

V

IN to GND (during IEC61000-4-5 8/20 µs surge event)

-5 to 48

VOUT

OUT to GND

-0.3 to 35

V

VIN-OUT

IN to OUT

-34 to 35

V

VEN, V

__

EN

EN,

__

EN to GND

-0.3 to 35

V

VOVLO

OVLO to GND

-0.3 to VIN

V

V

_____

ACOK

____

ACOK to GND

-0.3 to 6

V

ISW

Maximum switch current (continuous)

6

A

Peak switch current (5 ms, OCP and Pd limited)

20

TJ

Die junction operating temperature

-40 to 150

°C

TSTG

Storage temperature

-55 to 150

°C

TL

Maximum soldering temperature (at leads, 10 sec)

260

°C

3. Recommended Operating Conditions

Recommended operating conditions are specified to ensure optimal performance to the datasheet

specifications. The ratings are obtained over an operating free-air temperature range unless otherwise

specified.

Symbol

Parameter

Rating

Unit

VIN

Supply voltage

3 to 32

V

VOUT

Output voltage

3 to 32

V

V

_____

ACOK

Power good flag output voltage

0 to 5.5

V

VOVLO

OVLO adjust input bias voltage

0 to 5.5

V

VEN

Enable logic input voltage

0 to 32

V

TA

Ambient operating temperature

-40 to 85

°C

TJ

Die junction operating temperature

-40 to 125

°C

CIN

Input capacitance

1 to 10

µF

50

V

COUT

Output capacitance

10 to 1000

µF

35 or 50

V