Datasheet

Thermal
Shutdown
UVLO
Current
Limit
2
µ
A
Overshoot
Detect
500k
Quickstart
1.193V
Bandgap
IN
EN
NR
OUT
GND
400
Ω
Thermal
Shutdown
UVLO
Current
Limit
3.3M
Ω
Overshoot
Detect
500k
1.193V
Bandgap
IN
EN
FB
OUT
GND
400
Ω
TPS799xxDDC
TSOT23-5
(TOPVIEW)
OUT
NR
IN
GND
EN
1
2
3
5
4
TPS799xxYZU
WCSP
(TOPVIEW)
C3 C1
B2
A3 A1
OUT
EN
IN
GND
NR
GND
TPS79901YZU
WCSP
(TOPVIEW)
OUT
EN
IN
FB
C3 C1
B2
A3 A1
TPS79901DDC
TSOT23-5
(TOPVIEW)
OUT
FB
IN
GND
EN
1
2
3
5
4
TPS799xxDRV
2mmx2mmSON-6
(TOPVIEW)
IN
N/C
EN
6
5
4
OUT
NR
GND
1
2
3
GND
TPS79901DRV
2mmx2mmSON-6
(TOPVIEW)
IN
N/C
EN
6
5
4
OUT
FB
GND
1
2
3
GND
TPS799xx
SBVS056J –JANUARY 2005–REVISED AUGUST 2010 www.ti.com
DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. Fixed Voltage Versions Figure 2. Adjustable Voltage Versions
PIN CONFIGURATIONS
Table 1. PIN DESCRIPTIONS
TPS799xx
NAME DDC YZU DRV DESCRIPTION
IN 1 C3 6 Input supply.
GND 2 B2 3, Pad Ground. The pad must be tied to GND.
Driving the enable pin (EN) high turns on the regulator. Driving this pin low puts the regulator
EN 3 A1 4
into shutdown mode. EN can be connected to IN if not used.
Fixed voltage versions only; connecting an external capacitor to this pin bypasses noise
NR 4 A3 2 generated by the internal bandgap. This capacitor allows output noise to be reduced to very
low levels.
Adjustable version only; this pin is the input to the control loop error amplifier, and is used to
FB 4 A3 2
set the output voltage of the device.
Output of the regulator. A small capacitor (total typical capacitance ≥ 2.0mF ceramic) is
OUT 5 C1 1
needed from this pin to ground to assure stability.
N/C — — 5 Not internally connected. This pin must either be left open, or tied to GND.
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