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TPS71219DRCR Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza TPS71219DRCR
Descripción Electrónicos  Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS71219DRCR Datasheet(HTML) 4 Page - Texas Instruments

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Current
Limit
Thermal
Shutdown
V
REF
1.225 V
UVLO
30
µA
EN1
OUT1
IN
Current
Limit
OUT2
NR
EN2
250 k
Quickstart
5 pF
TPS712xx
Fixed/Fixed
30
µA
V
REF
1.225 V
UVLO
EN1
OUT1
IN
OUT2
FB1
FB2
NR
EN2
250 k
Quickstart
5 pF
TPS712xx
Adj/Adj
Current
Limit
Thermal
Shutdown
Current
Limit
90 k
90 k
TPS71202, TPS71219
TPS71229, TPS71247
TPS71256, TPS71257
SBVS049D – MAY 2004 – REVISED AUGUST 2010
www.ti.com
FUNCTIONAL BLOCK DIAGRAM —
FUNCTIONAL BLOCK DIAGRAM —
FIXED VERSION
ADJUSTABLE VERSION
Table 1. TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
NAME
DRC
IN
1
Unregulated input supply. A small 0.1 mF capacitor should be connected from IN to GND.
GND
5, Pad
Ground
Output of the regulator. A small 2.2 mF ceramic capacitor is required from this pin to ground to assure
OUT1
3
stability.
OUT2
4
Same as OUT1 but for LDO2.
Driving the enable pin (EN) high turns on LDO1. Driving this pin low puts LDO1 into shutdown mode,
EN1
10
reducing operating current. The enable pin should be connected to IN if not used.
EN2
8
Same as EN1 but controls LDO2.
FB1/NC
9
Feedback for CH1 adjustable version; no connection for non-adjustable CH1.
FB2/NC
7
Feedback for CH2 adjustable version; no connection for non-adjustable CH2.
NR
6
Noise reduction pin; connect an external bypass capacitor to reduce LDO output noise.
NC
2
No connection.
4
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Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS71202 TPS71219 TPS71229 TPS71247 TPS71256 TPS71257


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