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0.7 VREF
0.85 V
TPS40055-EP
www.ti.com
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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Product Folder Link(s): TPS40055-EP