ORDER INFORMATION

Device No.

Output Voltage

Package

Packaging

8425AQD10

Adjustable

QFN2.1x2.1-10

3000 parts per reel

8425BQD10

Adjustable

QFN2.1x2.1-10

3000 parts per reel

PIN CONFIGURATION:

Top View

(QFN2.1X2.1-10)

PIN

TYPE

(1)

DESCRIPTION

NO.

NAM E

1

CE

I

Chip Enable Input. Internal integrated with 1Mohm pull down resistor.

CE=High: Normal free running operation.

CE=Low:

Shutdown; quiescent current <1μA. Output capacitor can be

completely discharged through the load or feedback resistors.

If CE is undefined, pin SW may ring.

2

LBI

I

Low Battery Comparator Input (comparator enabled with CE).

3

I

the output power level and the battery’s internal series resistance. The V

IN

pin should be connected to the positive terminal of the battery and

bypassed with a low ESR ceramic bypass capacitor. Care should be taken

to minimize the loop area formed by the bypass capacitor connections,

8425 AGND pin. The minimum recommended

bypass capacitance is 1

μF ceramic with a X5R or X7R dielectric and the

and wide as possible.

6

5

4

7

8

9

10

1

2

3

LESHAN RADIO COMPANY, LTD.

Ver0.5

27