L6997

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ABSOLUTE MAXIMUM RATINGS

THERMAL DATA

PIN CONNECTION (Top View)

Symbol

Parameter

Value

Unit

-0.3 to 6

V

-0.3 to 6

V

HGATE and BOOT, to PHASE

-0.3 to 6

V

HGATE and BOOT, to PGND

-0.3 to 36

V

PHASE

-0.3-to 30

V

LGATE to PGND

V

ILIM, VFB, VSENSE, NOSKIP, SHDN, PGOOD, OVP, VREF, INT,

V

1

W

Storage temperature range

-40 to 150

°C

Symbol

Parameter

Value

Unit

Thermal Resistance Junction to Ambient

125

°C/W

Junction operating temperature range

-40 to 125

°C

PIN FUNCTION

N°

Name

Description

1

NOSKIP

2

GNDSE

NSE

Remote ground sensing pin

3

INT

integrator in the control loop. If the integrator is not used, short this pin to VREF.

4

VSENS

E

This pin must be connected to the remote output voltage to detect overvoltage and undervoltage

conditions and to provide integrator feedback input.

IC Supply Voltage.

6

GND

Signal ground

7

VREF

0.6V voltage reference. Connect max. a 10nF ceramic capacitor between this pin and ground.

This pin is capable to source or sink up to 250uA

GNDSENSE

INT

OVP

SHDN

ILIM

OSC

VCC

NOSKIP

PGOOD

LGATE

PGND

VDR

PHASE

HGATE

BOOT

1

3

2

4

5

6

7

8

9

18

17

16

15

14

13

19

20

10

SS

GND

11

12

VREF

VFB

TSSOP20

INT

VSENSE