Datasheet

Current
Sense
Thermal
Shutdown
UVLO
UVLO
R
1
FB
R
2
External to
the Device
Overshoot
Detect
250 k
Ω
Quickstart
Bandgap
Reference
1.225 V
IN
V
IN
EN
GND
OUT
300
Ω
V
REF
ILIM SHUTDOWN
Current
Sense
Thermal
Shutdown
UVLO
UVLO
R
1
R
2
R
2
= 40 k
Ω
Overshoot
Detect
250 k
Ω
Quickstart
Bandgap
Reference
1.225 V
IN
V
IN
EN
GND
NR
OUT
300
Ω
V
REF
ILIM SHUTDOWN
TPS795xx
www.ti.com SLVS350H –OCTOBER 2002–REVISED AUGUST 2010
FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION
FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION
Table 1. Terminal Functions
SOT223 (DCQ) 3x3 SON (DRB)
NAME PIN NO. PIN NO. DESCRIPTION
IN 2 1, 2 Unregulated input to the device
GND 3, 6 6 Regulator ground
EN 1 8 Driving the enable pin (EN) high turns on the regulator. Driving this pin low puts the regulator into
shutdown mode. EN can be connected to IN if not used.
NR 5 5 Noise-reduction pin for fixed versions only. Connecting an external capacitor to this pin bypasses
noise generated by the internal bandgap, which improves power-supply rejection and reduces
output noise. (Not available on adjustable versions.)
FB 5 5 Feedback input voltage for the adjustable device. (Not available on fixed voltage versions.)
OUT 4 3, 4 Regulator output.
NC – 7 Not connected
Copyright © 2002–2010, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): TPS795xx