AX3702



ELECTRICAL CHARACTERISTICS

(VIN = VEN=3.6V, TA =25°C, unless otherwise specified) (Note)

Characteristics

Symbol

Conditions

Min Typ Max Units

Input Voltage Range

VIN

2.5

-

6.0

V

Under Voltage Lock Out

threshold

VUVLO

VIN Rising

2.3

2.4

2.5

V

Hysteresis

280

mV

Input Over Voltage Lockout

Threshold

VOVLO

VIN Rising

6.2

V

Input Over Voltage Lockout

Hysteresis

Hysteresis

400

mV

Feedback Voltage

VFB

VFB=0.6V

0.5880 0.6000 0.6120 V

Feedback Bias Current

IFB

VFB=0.65V

-30

-

+30 nA

Quiescent Current

ICC

VFB=1V

-

30

-

uA

Shutdown Supply Current

ISD

VEN =0V

-

0.1

1

uA

Switching Current Limit

ILIMIT

IOUT=2A

2.4

2.8

3.2

A

Line Regulation

△VOUT/VOUTVIN=2.5V~5.5V - 0.04 0.4 %/V

Load Regulation

△VOUT/VOUTIOUT=0.01to2A - 0.5 0.6 %

Oscillation Frequency

FOSC

SW pin

1.2

1.5

1.8 MHz

R

DS(ON) of P-CH MOSFET

RDSON

IOUT=2A

-

0.19

-

Ω

R

DS(ON) of N-CH MOSFET

RDSON

IOUT=2A

-

0.10

-

Ω

Efficiency

EFFI

VIN=5V, VOUT=3.3V,

IOUT=0.5A

92

-

-

%

EN pin logic input threshold

voltage

VENL

-

-

0.4

V

VENH

1.0

-

-

EN Internal Pull Down Resistor

REN

700 1000 1300 kΩ

Soft-Start Interval

TSS

1.0

ms

Thermal Shutdown

Temperature

TSD

-

160

-

°C

Thermal Shutdown Hysteresis

TSH

-

30

-

°C

Output Discharging Resistor

RDISC

50

Ω

Note: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and

characterization.

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Rev1.4 Sep.30, 2021