SAMHOP Microelectronics Corp.

1.2MHz STEP-UP CONVERTER

ELECTRICAL CHARACTERISTICS

Characteristic

Unit

Min. Typ. Max.

Condition

Minimum operating voltage

V

2.5

-

-

Maximum operating voltage

V

-

-

10

Feedback voltage

mV

86

95

104

FB pin bias current

nA

10

45

100

Supply current

mA

-

1.9

2.5

SHDN=0V

μA

-

0.1

1.0

Switching frequency

MHz

0.8

1.2

1.6

Maximum duty cycle

%

85

90

-

Switch current limit

mA

-

320

-

mV

-

350

-

Switch leakage current

μA

-

0.01

5

SHDN voltage high

V

1.5

-

-

SHDN voltage low

V

-

-

0.4

SHDN pin bias current

-

65

-

μA

Note :

1. Absolute maximum ratings are those values beyond which the life of the device may be impaired.

statistical process controls.

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V.1.3 Aug 28,2007