0.7 VREF

0.85 V

TPS40055-EP

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SGLS310D – JULY 2005 – REVISED FEBRUARY 2012

TERMINAL FUNCTIONS (continued)

TERMINAL

I/O

DESCRIPTION

NAME

NO.

Synchronization input for the device. This pin can be used to synchronize the oscillator to an external master

SYNC

4

I

frequency. If synchronization is not used, connect this pin to SGND.

Inverting input to the error amplifier. In normal operation, the voltage on this pin is equal to the internal

VFB

7

I

reference voltage, 0.7 V.

VIN

15

I

Supply voltage for the device

SIMPLIFIED BLOCK DIAGRAM

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