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TPS79918DDCT Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TPS79918DDCT
Description  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator
Download  21 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS79918DDCT Fiches technique(HTML) 4 Page - Texas Instruments

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DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAMS
Thermal
Shutdown
UVLO
Current
Limit
2
µA
Overshoot
Detect
500k
Quickstart
1.193V
Bandgap
IN
EN
NR
OUT
GND
400
Thermal
Shutdown
UVLO
Current
Limit
3.3M
Overshoot
Detect
500k
1.193V
Bandgap
IN
EN
FB
OUT
GND
400
PIN CONFIGURATIONS
IN
N/C
EN
6
5
4
OUT
NR
GND
1
2
3
GND
TPS799xxDRV
2mm x 2mm SON−6
(TOP VIEW)
IN
N/C
EN
6
5
4
OUT
FB
GND
1
2
3
TPS79901DRV
2mm x 2mm SON−6
(TOP VIEW)
GND
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
TPS79901YZU
WCSP
(TOP VIEW)
OUT
EN
IN
GND
FB
C3
C1
B2
A3
A1
TPS79901DDC
TSOT23−5
(TOP VIEW)
OUT
FB
IN
GND
EN
1
2
3
5
4
TPS799xx
SBVS056E – JANUARY 2005 – REVISED OCTOBER 2005
Figure 1. Fixed Voltage Versions
Figure 2. Adjustable Voltage Versions
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 allows output noise to be reduced to very low levels.
Adjustable version only; this is the input to the control loop error amplifier, and is used to set
FB
4
A3
2
the output voltage of the device.
Output of the regulator. A small capacitor (total typical capacitance
≥ 2.0µF 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.
4


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