Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

-0.3V to 100V

BST to RTN

-0.3V to 114V

SW to RTN (Steady State)

-1V

ESD Rating (Note 5)

Human Body Model

2kV

BST to VCC

100V

BST to SW

14V

VCC to RTN

14V

All Other Inputs to RTN

-0.3 to 7V

Storage Temperature Range

-65˚C to +150˚C

Operating Ratings (Note 1)

V

IN

9.5V to 95V

Operating Junction Temperature

−40˚C to + 125˚C

Electrical Characteristics

Limits in standard type are for T

-40˚C to +125˚C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values

represent the most likely parametric norm at T

the following conditions apply: V

Ω. See (Note 3)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V

V

V

6.6

7

7.4

V

V

(Note 4)

9.5

mA

V

Voltage (V

6.3

V

V

200

mV

V

100mV overdrive

10

µs

I

Non-Switching, FB = 3V

485

675

µA

I

RON/SD = 0V

76

150

µA

Switch Characteristics

Buck Switch Rds(on)

I

2.0

4.4

Ω

Gate Drive UVLO

V

3.4

4.5

5.5

V

Gate Drive UVLO Hysteresis

430

mV

Current Limit

Current Limit Threshold

0.25

0.31

0.37

A

Current Limit Response Time

I

Time to Switch Off

400

ns

OFF time generator (test 1)

FB=0V, R

35

µs

OFF time generator (test 2)

FB=2.3V, R

2.56

µs

On Time Generator

T

Vin = 10V

Ron = 200K

2.15

2.77

3.5

µs

T

Vin = 95V

Ron = 200K

200

300

420

ns

Remote Shutdown Threshold

Rising

0.40

0.70

1.05

V

Remote Shutdown Hysteresis

35

mV

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