5

FN6769.1

March 17, 2009

ENABLE SECTION

EN Threshold

Rising Edge

1.2

1.7

2.2

V

Hysteresis

-

400

-

mV

EN Logic Input Current

-1

-

1

µA

FAULT PROTECTION

Thermal Shutdown Temperature

Rising Threshold

-

150

-

°C

Hysteresis

-

15

-

°C

PWM UV Trip Level

70

75

80

%

PWM UVP Propagation Delay

-

270

-

ns

PWM OCP Threshold

1.37

1.7

2.17

A

OCP Blanking Time

-

100

-

ns

POWER-GOOD

Lower Level, Falling Edge, with typically 15mV

hysteresis

85

88

91

%

Upper Level, Rising Edge, with typically 15mV

hysteresis

108

112

116

%

PG Propagation Delay

-9

-

µs

PG Low Voltage

-

0.05

0.3

V

PG Leakage Current

-1

-

1

µA

SOFT-START SECTION

Soft-Start Threshold to Enable Buck

0.9

1

1.1

V

Soft-Start Threshold to Enable PG

2.5

3.0

3.5

V

Soft-Start Voltage High

-3.45

-

V

Soft-Start Charging Current

20

30

40

µA

Soft-Start Pull-down

-

25

-

mA

POWER MOSFET

-

120

200

m

Ω

NOTES:

4. Excluding the blanking time.

Electrical Specifications

and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by

characterization and are not production tested. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISL85001