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TPS71229DRCT Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS71229DRCT
Description  Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS71229DRCT Datasheet(HTML) 1 Page - Texas Instruments

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Actual Size
(3 mm x 3 mm)
EN1
FB1/NC
EN2
FB2/NC
NR
10
9
8
7
6
IN
NC
OUT1
OUT2
GND
1
2
3
4
5
DRC PACKAGE
3mm x 3mm SON
(TOP VIEW)
80
70
60
50
40
30
20
10
0
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
PSRR (RIPPLE REJECTION) vs FREQUENCY
V
OUT = 2.8 V
C
OUT = 2.2 µF
C
NR = 0.01 µF
I
OUT = 1 mA
I
OUT = 250 mA
TPS71202, TPS71219
TPS71229, TPS71247
TPS71256, TPS71257
www.ti.com
SBVS049D – MAY 2004 – REVISED AUGUST 2010
Dual 250 mA Output, UltraLow Noise, High PSRR,
Low-Dropout Linear Regulator
Check for Samples: TPS71202, TPS71219, TPS71229, TPS71247, TPS71256, TPS71257
1
FEATURES
DESCRIPTION
Dual 250 mA High-Performance RF LDOs
The TPS712xx family of low-dropout (LDO) voltage
regulators is tailored to noise-sensitive and RF
Available in Fixed and Adjustable
applications. These products feature dual 250 mA
Voltage Options (1.2 V to 5.5 V)
LDOs with ultralow noise, high power-supply rejection
High PSRR: 65 dB at 10 kHz
ratio
(PSRR),
and
fast
transient
and
start-up
UltraLow Noise: 32 mVrms
response. Each regulator output is stable with
low-cost 2.2 mF ceramic output capacitors and
Fast Start-Up Time: 60 ms
features very low dropout voltages (125 mV typical at
Stable with 2.2 mF Ceramic Capacitor
250 mA). Each regulator achieves fast start-up times
Excellent Load/Line Transient Response
(approximately 60 ms with a 0.001 mF bypass
capacitor)
while
consuming
very
low
quiescent
Very Low Dropout Voltage: 125 mV at 250 mA
current (300 mA typical with both outputs enabled).
Independent Enable Pins
When the device is placed in standby mode, the
Thermal Shutdown and Independent Current
supply current is reduced to less than 0.3 mA typical.
Limit
Each regulator exhibits approximately 32 mVrms of
output voltage noise with VOUT = 2.8 V and a 0.01 mF
Available in Thermally-Enhanced SON
noise reduction (NR) capacitor. Applications with
Package: 3mm x 3mm x 1mm
analog components that are noise-sensitive, such as
portable RF electronics, will benefit from high PSRR,
APPLICATIONS
low noise, and fast line and load transient features.
Cellular and Cordless Phones
The TPS712 family is offered in a thin 3mm x 3mm
Wireless PDA/Handheld Products
SON package and is fully specified from -40°C to
PCMCIA/Wireless LAN Applications
+125°C (TJ).
Digital Camera/Camcorder/Internet Audio
DSP/FPGA/ASIC/Controllers and Processors
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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