If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

IN, SW1, and SW2

−0.3 to 31V

FB1 and FB2

−0.3 to 3V

SD, ON/OFF1, ON/OFF2,

2NDFB/FPWM, SYNC, REF,

SS1, SS2, COMP1,

COMP2 and CSL1

−0.3 to (V

LIN

−0.3 to 6V

CSH1, CSH2, and CSL2 (Note

12)

−0.3 to 9V

Voltage from CBOOT1 to SW1

and from CBOOT2 to SW2

−0.3 to 5V

Voltage from HDRV1 to SW1

and from HDRV2 to SW2

−0.3V

Voltage from CBOOT1 to

HDRV1 and from CBOOT2

HDRV2

−0.3V

Junction Temp.

+150˚C

Power Dissipation (Note 3)

883 mW

Ambient Storage Temp. (T

−65 to +150˚C

Soldering Dwell Time, Temp. (Note 4)

Wave

4 sec, 260˚C

Infrared

10 sec, 240˚C

Vapor Phase

75 sec, 219˚C

ESD Rating (Note 5)

2 kV

V

IN

5.5 to 30V

Junction Temp. (T

0 to +125˚C

Electrical Characteristics

Typicals and limits appearing in regular type apply for T

tion temperature range for operation, 0 to +125˚C. Unless otherwise specified under the Parameter or Conditions columns, V

IN

= 10V, and V

Symbol

Parameter

Conditions

Typical

Limit

Units

System

V

IN

Input Supply Voltage Range

5.5

V(min)

30

V(max)

V

OUT1

Output Voltage Adjustment

Range

2.2

V(min)

6.0

V(max)

V

OUT2

Output Voltage Adjustment

Range

2.2

V(min)

8.0

V(max)

∆V

Load Regulation

0 mV

≤ (CSH1-CSL1) ≤ 80 mV,

0mV

≤ (CSH2-CSL2) ≤ 80 mV

0.5

%

∆V

Line Regulation

5.5V

≤ V

0.002

%/V

I

IN

Input Supply Current

ON (Note 8)

0.6

mA

V

1

mA(max)

V

V

Standing By (Note 9)

80

µA

V

150

µA(max)

Shut Down (Note 10)

25

µA

V

60

µA(max)

I

Soft-Start Source Current

V

4.75

µA

2.0

µA(min)

7.0

µA(max)

Soft-Start Sink Current

10

µA

V

PCL

Positive Current Limit

Voltage (Voltage from CSH1

to CSL1 and from CSH2 to

CSL2)

100

mV

80

mV(min)

140

mV(max)

V

NCL

Negative Current Limit

Voltage (Voltage from CSH1

to CSL1 and from CSH2 to

CSL2)

V

−100

mV

−80

mV(min)

−140

mV(max)

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