Datasheet

PG
Bandgap
Reference
V =1.235V
REF
R
1
Current
Sense
I
LIM
R
2
V
IN
V
IN
V
OUT
GND
TPS797xx
SLVS332I –MARCH 2001–REVISED OCTOBER 2013 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
Table 1. TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
NAME NO.
GND 2 Ground
NC 3 No connection
OUT 5 The OUT terminal provides the regulated output voltage of the device.
The PG terminal for the fixed voltage option devices is an open drain, active-high output that indicates
the status of V
O
(output of the LDO). When V
O
exceeds approximately 90% of the regulated voltage,
PG 1 PG goes to a high-impedance state. It goes to a low-impedance state when V
O
falls below
approximately 90% (that is, overload condition) of the regulated voltage. The open drain output of the
PG terminal requires a pull-up resistor.
IN 4 The IN terminal is the power supply input to the device.
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