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AS1337

Datasheet - Electrical Character i s t ics

6 Electrical Characteristics

Table 4. Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Operating Temperature Range

-45

+85

°C

Input

Minimum Start-Up Voltage

0.85

1.15

V

Minimum Operating Voltage

1

charged state.

0.65

0.85

V

Maximum Input Voltage

4.5

V

Output Voltage Adjust Range

2.5

5

V

Regulation

Feedback Voltage

1.192

1.23

1.268

V

Feedback Input Current

1

nA

Operating Current

Quiescent Current

2

Note:

All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality

Control) methods.

20

35

µA

Shutdown Current

0.01

1

µA

Switches

0.01

1

µA

AS1337B only

0.01

1

µA

0.35

Ω

0.20

0.45

Ω

0.30

NMOS Current Limit

850

mA

Max Duty Cycle

80

87

%

Switching Frequency

0.95

1.2

1.5

MHz

Shutdown

Enable Input Threshold

1

V

0.3

EN Input Current

EN = 5.0V

0.01

1

µA

Power-OK

POK Voltage Low

0.1

0.4

V

POK Leakage Current

1

100

nA

Power-OK Threshold

Falling Edge

86

88

91

%

Thermal Protection

Overtemperature Protection

145

ºC

Overtemperature Protection Hysteresis

10

ºC