ACE705

High efficiency, Low supply current, step-up DC/DC Controller

VER 1.4

4

Electrical Characteristics

Default condition (unless otherwise provided): Vin=0.6xVout, Iout=10mA.Temperature=25℃. Use external circuit in test circuit

list.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output Voltage

Vout

2.45

2.5

2.55

V

2.646

2.7

2.754

2.94

3.0

3.06

3.234

3.3

3.366

3.528

3.6

3.672

3.92

4.0

4.08

4.9

5.0

5.1

5.88

6.0

6.12

Input Voltage

Vin

12

V

Input Current * (no

load)

Lin

Iout=0mA, Vin=Vout*0.6

20

25

uA

Quiescent current *

No external component,

Vout=Voutx1.05

6

15

uA

Chip leakage current

1

uA

CE

“H: threshold

voltage

0.8

V

CE

“L” threshold

voltage

0.3

V

Oscillator frequency

Vout=Vout*0.96 Test EXT pin

frequency

350

Khz

CE

”H”

-0.5

0

0.5

uA

CE

“L”

-0.5

0

0.5

uA

EXT

“H” output current

3.0V<=Vout<=3.9V

-21

mA

4.0V<=Vout<=4.9V

-35

5.0V<=Vout<=6.9V

-41

EXT

“H” output current

3.0V<=Vout<=3.9V

23

mA

4.0V<=Vout<=4.9V

25

5.0V<=Vout<=6.9V

31

Oscillator duty cycle

Duty

On(Vlx

“L”) side

70

75

80

%

Note :

1.

Diode: Schottky type, such as: 1N5817, 1N5819, 1N5822

2.

Inductor: 27uH(R<0.5Ω)

3.

Output Capacitor: 100uF (Tantalum type)

4.

Vout pin filter capacitor: 1nF (Ceramic type)

5.

Input capacitor: 47uF