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Axelite Confidential Materials, do not copy or distribute without written consent.

Rev.1.5 Oct.15, 2019

AX3116



ABSOLUTE MAXIMUM RATINGS (at TA=25°C)

Characteristics

Symbol

Rating

Unit

VCC Pin Voltage

VCC

VSS - 0.3 to VSS + 25

V

Feedback Pin Voltage

VFB

VSS - 0.3 to VCC

V

ON/OFF Pin Voltage

VEN

VSS - 0.3 to VCC + 0.3

V

Switch Pin Voltage

VSW

VSS - 0.3 to VCC + 0.3

V

Power Dissipation

PD

Internally limited

mW

Storage Temperature Range

TST

-40 to +150

°C

Operating Junction Temperature

TOPJ

-20 to +125

°C

Junction Temperature Range

TJ

-40 to +150

°C

Operating Supply Voltage

VOP

+4.5 to +23

V

Switching Current

ISW

6.5

A

Thermal Resistance from Junction to case

θJC

15

°C/W

Thermal Resistance from Junction to ambient

θJA

40

°C/W

Note :θJA is measured with the PCB copper area(need connect to Exposed pad) of approximately 1 in2(Multi-layer).



ELECTRICAL CHARACTERISTICS

(VIN = 12V, TA=25°C, unless otherwise specified)

Characteristics

Symbol

Conditions

Min Typ Max Units

Feedback Voltage

VFB

IOUT=0.2A

0.784 0.800 0.816 V

Quiescent Current

ICCQ

VFB=1.2V force driver

off

-

3

5

mA

Feedback Bias Current

IFB

IOUT=0.2A

-

0.1 0.5

uA

Shutdown Supply Current

ISD

VEN =0V

-

2

10

uA

Line Regulation

△ VOUT/VOUT VCC=8V~23V,

IOUT=0.3A

-

1

2

%

Load Regulation

△ VOUT/VOUT IOUT = 0.1 to 2.5A

-

0.2 0.5

%

OCSET pin bias current

IOCSET

95

110 140 uA

SS pin Current

ISS

-

4.0

-

uA

Oscillation Frequency

FOSC

SW pin

260 330 400 KHz

Short Circuit Frequency

FOSC1

VFB=0V

-

80

-

KHz

EN Pin Logic input threshold

voltage

VSH

High (regulator ON)

2.0

-

-

V

VSL

Low (regulator OFF)

-

-

0.8

EN Pin Input Current

ISH

VEN=2.5V (ON)

-

20

-

uA

ISL

VEN=0.3V (OFF)

-

-10

-

uA

Internal MOSFET RDSON

RD ㎏ SON

VCC=5V, VFB=0V

-

70 100

mΩ

VCC=12V, VFB=0V

-

45

70

Efficiency

EFFI

VOUT = 5V

IOUT = 3A

-

92

-

%

IOUT = 5A

-

91

-

Thermal shutdown Temp

TSD

-

135

-

°C