________________________________________________________________________________________ _ 3

Step-Up Converter

for Handheld Applications

ELECTRICAL_CHARACTERISTICS_(continued)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Steady-State Output Voltage

(Notes 5, 6)

3.00

3.45

V

3.15

3.65

3.35

3.85

3.95

4.35

4.50

5.10

LX_ Leakage Current

0.1

5

F

A

0.2

Skip-Mode Supply Current

low, not switching)

45

F

A

pMOS Turn-Off Current (Zero-Cross Current)

10

mA

LX_ nMOS Current Limit

2.6

3.2

A

Maximum Duty Cycle

83

%

Minimum Duty Cycle

0

%

pMOS On-Resistance

120

mI

115

110

100

91

nMOS On-Resistance

65

mI

63

60

55

51

Minimum Output Capacitance for Stable

Operation (Actual)

8

F

F

Maximum Output Capacitance (Actual)

during startup

70

F

F

55

45

30

20