Datasheet
2
1
3
4
7
8
6
5
FB
NC
GND
OUT
EN
NC
NC
IN
TPS7A4001
www.ti.com
SBVS162A –MARCH 2011–REVISED MARCH 2011
PIN CONFIGURATION
DGN PACKAGE
MSOP-8
(TOP VIEW)
PIN DESCRIPTIONS
TPS7A40xx
NAME NO. DESCRIPTION
OUT 1 Regulator output. A capacitor > 4.7µF must be tied from this pin to ground to assure stability.
FB 2 This pin is the input to the control-loop error amplifier. It is used to set the output voltage of the device.
NC 3, 6, 7 Not internally connected. This pin must either be left open or tied to GND.
GND 4 Ground
This pin turns the regulator on or off.
If V
EN
≥ V
EN_HI
the regulator is enabled.
EN 5
If V
EN
≤ V
EN_LO
, the regulator is disabled.
If not used, the EN pin can be connected to IN. Make sure that V
EN
≤ V
IN
at all times.
IN 8 Input supply
Solder to printed circuit board (PCB) to enhance thermal performance.
PowerPAD NOTE: The PowerPAD is internally connected to GND.
Although it can be left floating, it is highly recommended to connect the PowerPAD to the GND plane.
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