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

CC

-0.3 to 7V

BOOT Voltage

-0.3 to 21V

All other pins

-0.3 to V

Junction Temperature

150˚C

Storage Temperature

−65˚C to 150˚C

Soldering Information

Lead Temperature

(soldering, 10sec)

260˚C

Infrared or Convection (20sec)

235˚C

ESD Rating (Note 3)

2 kV

Operating Ratings

Supply Voltage Range (V

3Vto6V

Junction Temperature Range

(T

−40˚C to +125˚C

Thermal Resistance (

θ

155˚C/W

Voltage on FB and V

REF

0.5V to 1.5V

Electrical Characteristics

V

boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,

test, or statistical analysis.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V

ON

UVLO Thresholds

Rising

Falling

2.76

2.42

V

I

Q_VCC

Operating V

V

Fsw = 600kHz

1.0

1.5

2.1

mA

V

Fsw = 600kHz

1.0

1.7

2.1

Shutdown V

V

1

25

µA

t

PWGD1

PWGD Pin Response Time

V

6

µs

t

PWGD2

PWGD Pin Response Time

V

6

µs

I

SS-ON

SS Pin Source Current

V

5

10

15

µA

I

SS-OC

SS Pin Sink Current During

Over Current

V

90

µA

I

SEN-TH

I

Point

20

40

60

µA

ERROR AMPLIFIER

V

OS

Error Amplifier Input Offset

Voltage

-8

1

8

mV

GBW

Error Amplifier Unity Gain

Bandwidth

9

MHz

G

Error Amplifier DC Gain

106

dB

SR

Error Amplifier Slew Rate

3.2

V/µs

I

EAO

EAO Pin Current Sourcing and

Sinking Capability

V

V

2.6

9.2

mA

V

EA

Error Amplifier Output Voltage

Minimum

0

V

Maximum

2

V

www.national.com

3