ACE345

Adjustable USB Load Current Switch

VER 1.2

3

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Input Voltage Range

Vin

2.6

5.5

V

Quiescent Current

Iq

Active, Vfb=0.65, No

Switching

150

300

uA

Shutdown

1

Switch Rdson

Rdson

Iout=500mA

100

150

m

Ω

Adjustable current limit

Llimit

R_Iset=53K ohm

R_Iset=25K ohm

R_Iset=17K ohm

0.5

1.0

1.5

A

Reverse Voltage Leakage

Current

Irevlk

Vout=5V, Vin=0V

0.1

5

uA

ON Input High Voltage

Vh_on

1.5

V

ON Input Low Voltage

Vl_on

0.4

V

Thermal shutdown Temp

Tsd

155

℃

Setting The Current Limit Threshold

RILIM (KΩ) Typical Current Limit (mA) RILIM (KΩ) Typical Current Limit (mA)

200

138

51

520

180

152

43

612

151

179

30

873

100

266

20

1295

82

324

15.1

1705

68

389