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TPS79928DDCRG4 Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce TPS79928DDCRG4
Description  200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS79928DDCRG4 Fiches technique(HTML) 5 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
TPS79901, TPS79915, TPS79916, TPS79918
TPS79925, TPS79927, TPS79928, TPS799285
TPS79929, TPS79930, TPS79932, TPS79933
SBVS056C – JANUARY 2005 – REVISED MAY 2005
Figure 1. Fixed Voltage Versions
Figure 2. Adjustable Voltage Versions
Table 1. PIN DESCRIPTIONS
TPS799xx
DESCRIPTION
NAME
DDC
YZU
IN
1
C3
Input supply.
GND
2
B2
Ground
Driving the enable pin (EN) high turns on the regulator. Driving this pin low puts the regulator into
EN
3
A1
shutdown mode. EN can be connected to IN if not used.
Fixed voltage versions only; connecting an external capacitor to this pin bypasses noise generated
NR
4
A3
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 the
FB
4
A3
output voltage of the device.
Output of the regulator. A small capacitor (total typical capacitance
≥ 2.0µF ceramic) is needed from
OUT
5
C1
this pin to ground to assure stability.
5


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