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
TPS786xx
www.ti.com SLVS389L –SEPTEMBER 2002–REVISED OCTOBER 2010
FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION
FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION
PIN CONFIGURATIONS
TERMINAL
DCQ KTT DRB
NAME (SOT223) (DDPAK) (SON) DESCRIPTION
Noise-reduction pin for fixed versions only. An external bypass capacitor, connected to this terminal, in
NR 5 5 5
conjunction with an internal resistor, creates a low-pass filter to further reduce regulator noise.
The EN terminal is an input that enables or shuts down the device. When EN is a logic high, the device
EN 1 1 8
is enabled. When the device is a logic low, the device is in shutdown mode.
FB 5 5 5 Feedback input voltage for the adjustable device.
GND 3, 6 3, TAB 6 Regulator ground
IN 2 2 1, 2 Input supply
OUT 4 4 3, 4 Regulator output
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