Absolute Maximum Ratings

Pin Symbol

Pin Name

2

PACKAGE PIN #

PIN SYMBOL

FUNCTION

Package Pin Description

IC Power Input

16V

-0.3V

N/A

1.5A Peak 200mA DC

SS

Soft Start Capacitor

6V

-0.3V

200µA

10µA

COMP

Compensation Capacitor

6V

-0.3V

10mA

1mA

Voltage Feedback and Current

6V

-0.3V

1mA

1mA

Sense Comparator Input

Off-Time Capacitor

6V

-0.3V

1mA

50mA

Voltage ID DAC Inputs

6V

-0.3V

1mA

10µA

GATE(H)

High-Side FET Driver

16V

-0.3V

1.5A Peak

1.5A Peak

200mA DC

200mA DC

GATE(L)

Low-Side FET Driver

16V

-0.3V

1.5A Peak

1.5A Peak

200mA DC

200mA DC

Current Sense Comparator Input

6V

-0.3V

1mA

1mA

PWRGD

Power-Good Output

6V

-0.3V

10µA

30mA

PGnd

Power Ground

0V

0V

1.5A Peak

N/A

200mA DC

LGnd

Logic Ground

0V

0V

100mA

N/A

1,2,3,4,6

Voltage ID DAC inputs. These pins are internally pulled up to 5V if left

Error Amp reference range is 2.125V to 3.525V with 100mV increments.

to 2.075V with 50mV increments.

5

SS

Soft Start Pin. A capacitor from this pin to LGnd sets the Soft Start and

fault timing.

Off-Time Capacitor Pin. A capacitor from this pin to LGnd sets both the

normal and extended off time.

Current Sense Comparator Inverting Input

Input Power Supply Pin.

10

GATE(H)

High Side Switch FET driver pin.

11

PGnd

High Current ground for the GATE(H) and GATE(L) pins.

12

GATE(L)

Low Side Synchronous FET driver pin.

13

PWRGD

of regulation.

14

LGnd

Reference ground. All control circuits are referenced to this pin.

15

COMP

Error Amp output. PWM Comparator reference input. A capacitor to

LGnd provides Error Amp compensation.

16

Error Amp, PWM Comparator feedback input, Current Sense

Comparator Non-Inverting input, and PWRGD comparator input.

Lead Temperature Soldering:

Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Sec max. above 183˚C, 230˚C Peak