Datasheet

IN
EN
NR
OUT
GND
Current
Limit
Thermal
Shutdown
UVLO
1.20 V
Bandgap
225 kW
Quick-Start
Adjustable
0.8 V
33 kW
58.7 kW
33 kW
FB
15 pF
TPS7A8101
IN
NR
IN
EN
6
7
8
5
4
OUT
OUT
FB/SNS
GND
1
2
3
TPS7A8101
www.ti.com SBVS179A –DECEMBER 2011–REVISED APRIL 2012
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Functional Block Diagram
PIN CONFIGURATION
DRB PACKAGE
3mm x 3mm SON-8
(TOP VIEW)
PIN DESCRIPTIONS
PIN
NAME NO. DESCRIPTION
Driving this pin high turns on the regulator. Driving this pin low puts the regulator into shutdown mode. Refer
EN 5 to the Shutdown section for more details. EN must not be left floating and can be connected to IN if not
used.
FB 3 This pin is the input to the control-loop error amplifier and is used to set the output voltage of the device.
GND 4, pad Ground
IN 7, 8 Unregulated input supply
Connect an external capacitor between this pin and ground to reduce output noise to very low levels. The
NR 6
capacitor also slows down the V
OUT
ramp (RC softstart).
OUT 1, 2 Regulator output. A 4.7-μF or larger capacitor of any type is required for stability.
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