3

FN9256.0

March 7, 2006

POR

Output Low Voltage

Sinking 1mA, FB = 0.7V

-

-

0.3

V

Delay Time

150

200

275

ms

POR Pin Leakage Current

POR = VCC = 3.6V

-

0.01

0.1

µA

Minimum Supply Voltage for Valid POR Signal

1.2

-

-

V

Internal PGOOD Low Rising Threshold

Percentage of Nominal Regulation Voltage

89.5

92

94.5

%

Internal PGOOD Low Falling Threshold

Percentage of Nominal Regulation Voltage

85

88

91

%

Internal PGOOD High Rising Threshold

Percentage of Nominal Regulation Voltage

105.5

108

110.5

%

Internal PGOOD High Falling Threshold

Percentage of Nominal Regulation Voltage

102

105

108

%

Internal PGOOD Delay Time

-50

-

µs

EN, MODE, RSI

Logic Input Low

--

0.4

V

Logic Input High

1.4

-

-

V

Logic Input Leakage Current

Pulled up to 5.5V

-

0.1

1

µA

Thermal Shutdown

-

150

-

°C

Thermal Shutdown Hysteresis

-25

-

°C

Electrical Specifications

Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and

RSI = 0V, MODE = VCC, L = 1.8

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISL6273