Datasheet




SGLS264A − SEPTEMBER 2004 − REVISED JUNE 2008
4
www.ti.com
functional block diagram
_
+
Delay
V
IN
Current
Sense
R1
R2
V
IN
GND
V
OUT
PG
ILIM
Bandgap
Reference
V
ref
= 1.235 V
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O
DESCRIPTION
GND 2 Ground
NC 3 No connection
OUT 5 O The OUT terminal provides the regulated output voltage of the device.
PG 1 O 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 goes to a high
impedance state. It goes to a low-impedance state when V
O
falls below approximately 90% (i.e. overload condition)
of the regulated voltage. The open drain output of the PG terminal requires a pullup resistor.
IN 4 I The IN terminal is the power supply input to the device.