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TPS79625KTTT Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS79625KTTT
Description  Ultralow-Noise, High PSRR, Fast, RF, 1A Low-Dropout Linear Regulators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS79625KTTT Datasheet(HTML) 1 Page - Texas Instruments

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1
2
3
4
5
6
GND
NR/FB
OUT
GND
IN
EN
1
KTT (DDPAK) PACKAGE
(TOP VIEW)
2
3
4
5
EN
IN
GND
OUT
NR/FB
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Frequency (Hz)
100
10k
100k
1k
IOUT = 1 mA
TPS79630
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
IOUT = 1.5 A
VIN = 5.5 V
COUT = 2.2 F
m
CNR = 0.1 mF
0
10
20
30
40
50
60
70
80
Frequency (Hz)
1
10k
10M
1k
IOUT = 1 mA
TPS79630
RIPPLE REJECTION
vs
FREQUENCY
IOUT = 1 A
VIN = 4 V
COUT = 10 F
m
CNR = 0.01 mF
10
100
100k
1M
EN
NC
GND
NR/FB
8
7
6
5
IN
IN
OUT
OUT
1
2
3
4
DRB PACKAGE
3mm x 3mm SON
(TOP VIEW)
DCQ PACKAGE
SOT223-6
(TOP VIEW)
TPS796
www.ti.com
SLVS351O – SEPTEMBER 2002 – REVISED NOVEMBER 2013
Ultralow-Noise, High PSRR, Fast, RF, 1A
Low-Dropout Linear Regulators
1
FEATURES
DESCRIPTION
The TPS796xx family of low-dropout (LDO) low-
234
1A Low-Dropout Regulator With Enable
power linear voltage regulators features high power
Available in Fixed and Adjustable (1.2V to
supply rejection ratio (PSRR), ultralow-noise, fast
5.5V) Versions
start-up,
and
excellent
line
and
load
transient
High PSRR (53dB at 10kHz)
responses in small outline, 3 × 3 SON, SOT223-6,
and DDPAK-5 packages. Each device in the family is
Ultralow-Noise (40
μVRMS, TPS79630)
stable with a small 1
μF ceramic capacitor on the
Fast Start-Up Time (50
μs)
output. The family uses an advanced, proprietary
Stable With a 1
μF Ceramic Capacitor
BiCMOS fabrication process to yield extremely low
dropout voltages (for example, 250mV at 1A). Each
Excellent Load/Line Transient Response
device achieves fast start-up times (approximately
Very Low Dropout Voltage (250mV at Full
50
μs
with
a
0.001
μF
bypass
capacitor)
while
Load, TPS79630)
consuming very low quiescent current (265
μA
3 × 3 SON PowerPAD™, SOT223-6, and
typical). Moreover, when the device is placed in
DDPAK-5 Packages
standby mode, the supply current is reduced to less
than 1
μA. The TPS79630 exhibits approximately
40
μVRMS of output voltage noise at 3.0V output, with
APPLICATIONS
a 0.1
μF bypass capacitor. Applications with analog
RF: VCOs, Receivers, ADCs
components that are noise sensitive, such as portable
Audio
RF electronics, benefit from the high PSRR, low
noise features, and the fast response time.
Bluetooth™, Wireless LAN
Cellular and Cordless Telephones
Handheld Organizers, PDAs
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.
2
PowerPAD is a trademark of Texas Instruments Inc.
3
Bluetooth is a trademark of Bluetooth SIG, Inc.
4
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2013, 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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