ACE727Z

18V, 3A, High Efficiency Synchronous Step-Down Converter

VER 1.1

4

Electrical Characteristics

Parameter

Conditions

Min

Typ

Max

Unit

Input Voltage Range

4.2

18

V

Input UVLO

Rising, Hysteresis=340mV

4.2

V

Input OVP

Rising, Hysteresis=1V

19

V

Input Supply Current

V

700

µA

Input Shutdown Current

7

14

µA

FB Voltage

0.776

0.8

0.824

V

FB Input Current

0

1

µA

Switching Frequency

500

kHz

Maximum Duty Cycle

91

%

Short Circuit Hiccup Time

On Time

2

mS

Off Time

6

mS

FB Hiccup Threshold

0.2

V

High Side Switch On Resistance

120

mΩ

Low Side Switch On Resistance

75

mΩ

High Side Current Limit

3.5

A

SW Leakage Current

IN=SW=12V

20

µA

EN Rising Threshold

1.5

V

EN Falling Threshold

1.3

V

EN Input Current

VEN=2V

2

uA

Thermal Shutdown

Rising, Hysteresis =40°C

150

°C