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

Rev.1.4 Nov.06, 2019

AX5203



ELECTRICAL CHARACTERISTICS

(VCC = 12V, VOUT=24V, TA=25°C, unless otherwise specified)

Characteristics

Symbol

Conditions

Min Typ Max Units

Operating Supply Voltage

VCC

4.5

-

23

V

Output Voltage Range

VOUT

5

-

68

V

Feedback Voltage

VFB

IOUT=0.1A

0.98 1.00 1.02

V

Feedback Bias Current

IFB

IOUT=0.1A

-

0.1 0.5

uA

Quiescent Current

ICCQ VFB=1.5V force driver off

-

4

6

mA

Shutdown Supply Current

ISD

VEN =0V

-

1

10

uA

Oscillation Frequency

FOSC SW pin

400 500 600 KHz

Line Regulation

VCC =4.5~0.8*VOUT

-

1

-

%

Load Regulation

IOUT=50m~0.6A

-

0.5

-

%

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)

-

-1

-

uA

SS pin Current

ISS

-

8

-

uA

Switching Current Limit

ILIM-SW

1.8 2.0

-

A

Internal MOSFET RDSON

RDSON

VCC=5V

- 140 160

mΩ

VCC=12V

- 100 120

Efficiency

EFFI

VCC=12V

VOUT=24V

IOUT = 0.5A

-

92

-

%

Maximum Duty Cycle

DCMAX VFB=0V

-

85

-

%

Minimum Duty Cycle

DCMIN VFB=1.5V

-

0

-

Thermal shutdown Temp

TSD

- 145 -

°C