ACE708C

0.85V startup, 1MHz, 300mA Iout, Low Iq, Synchronous Boost Converter

VER 1.2

4

Electrical Characteristics

Parameter

Test Conditions

Min

Typ

Max

Unit

Minimum Input Voltage

0.7

V

Startup Voltage

0.85

1.1

V

Dropout Voltage, Vout≧2.8V

FB=OUT

3.2

3.3

3.4

V

FB=G

4.85

5

5.15

V

FB Feedback Voltage

Vout=2.5 to 5V

0.582

0.6

0.618

V

FB Input Current

50

nA

Output Voltage Range

External divider

2.5

5.0

V

Quiescent Current at OUT

10

20

uA

Shutdown Supply Current at OUT

EN=G

0.1

1

uA

NMOS Switch On Resistance

Isw=100mA

0.3

Ω

PMOS Switch On Resistance

Isw=100mA

0.7

Ω

NMOS Switch Current Limit

1

A

SW Leakage Current

Vout=5.5V, Vsw=0 or 5.5V, EN=G

1

uA

EN Input Current

1

uA

EN Input Voltage for

“Low”

0.3

V

EN Input Voltage for

“High”

0.6

V

Typical Application Circuit

SW

ACE708C

OUT

EN

GND

FB

Note: Input capacitor (Cin=0.47uF) and Output capacitor (Cout

≥4.7uF) are recommended in all application circuit.