AP74502Q, AP74502HQ

Document number: DS47093 Rev. 1 - 2

3 of 22

www.diodes.com

April 2025

© 2025 Copyright Diodes Incorporated. All Rights Reserved.

AP74502Q, AP74502HQ

, AP

Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4)

Symbol

Parameter

Ratings

Unit

ESD HBM

Human Body ESD Protection

±2

kV

ESD CDM

Charged Device Model ESD Protection

±750

V

VIN to GND

Input Voltage at VIN

-80 to +80

V

EN/UVLO, OVLO to GND

VVIN > 0V

-0.3 to +80

V

VVIN ≤ 0V

VVIN to (VVIN +80)

V

SRC to GND

VVIN > 0V

-(80-VVIN) to VVIN

V

VVIN ≤ 0V

VVIN +0.3

V

GATE to SRC

—

0 to 15

V

VCAP to VIN

—

-0.3 to 15

V

TJ(MAX)

Maximum Operating Junction Temperature

-40 to +150

°C

TSTG

Storage Temperature

-40 to +150

°C

Note:

4. Stresses greater than the 'Absolute Maximum Ratings' specified above can cause permanent damage to the device. These are stress ratings only;

functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability can be

affected by exposure to absolute maximum rating conditions for extended periods of time.

Package Thermal Information (Notes 5 & 6)

Symbol

Parameter

Value

Unit

RθJA

Junction-to-Ambient Thermal Resistance

176.9

°C/W

RθJC(top)

Junction-to-Case (Top) Thermal Resistance

122.0

°C/W

RθJB

Junction-to-Board Thermal Resistance

46.0

°C/W

ψJT

Junction-to-Top Characterization Parameter

10.1

°C/W

ψJB

Junction-to-Board Characterization Parameter

44.9

°C/W

RθJC(bot)

Junction-to-Case (Bottom) Thermal Resistance

50.0

°C/W

Notes:

5. RJA and RJC are measured at TA = +25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7.

6. Device mounted on the JEDEC High-K 2S2P board.

Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)

Symbol

Parameter

Min

Max

Unit

VIN, EN/UVLO,

OVLO, SRC to GND

Input Voltage at VIN, EN/UVLO, OVLO, SRC

-75

+75

V

VIN Capacitance

Input Capacitor at VIN (Note 7)

0.1

—

µF

VIN to VCAP Capacitance

Charge Pump Capacitor (Note 7)

0.1

—

µF

External MOSFET VGS Max

Gate to SRC (Note 7)

15

—

V

TJ

Operating Junction Temperature Range

-40

+150

°C

Note:

7. Refer to the typical application circuit.