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TPS79625DCQ Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS79625DCQ
Descripción Electrónicos  ULTRALOW-NOISE, HIGH PSRR, FAST RF 1-A LOW-DROPOUT LINEAR REGULATORS
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS79625DCQ Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
1
KTT (DDPAK) PACKAGE
(TOP VIEW)
2
3
4
5
EN
IN
GND
OUT
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 µF
CNR = 0.1 µF
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 µF
CNR = 0.01 µF
10
100
100k
1M
EN
NC
GND
NR
8
7
6
5
IN
IN
OUT
OUT
1
2
3
4
DRB PACKAGE
3 x 3 SON
(TOP VIEW)
NR/FB
1
2
3
4
5
DCQ PACKAGE
SOT223-6
(TOP VIEW)
NR/FB
OUT
GND
IN
EN
6
GND
TPS79601, TPS79618, TPS79625
TPS79628, TPS79630, TPS79633
SLVS351D – SEPTEMBER 2002 – REVISED OCTOBER 2004
ULTRALOW-NOISE, HIGH PSRR, FAST RF 1-A
LOW-DROPOUT LINEAR REGULATORS
1-A Low-Dropout Regulator With Enable
The
TPS796xx
family
of
low-dropout
(LDO)
low-power linear voltage regulators features high
Available in 1.8-V, 2.5-V, 2.8-V, 3-V, 3.3-V, and
power supply rejection ratio (PSRR), ultralow-noise,
Adjustable (1.2-V to 5.5-V)
fast start-up, and excellent line and load transient
High PSRR (53 dB at 10 kHz)
responses in small outline, 3 x 3 SON, SOT223-6,
Ultralow-Noise (40 µVRMS, TPS79630)
and 5-pin DDPAK packages. Each device in the
family is stable with a small 1-µF ceramic capacitor
Fast Start-Up Time (50 µs)
on the output. The family uses an advanced, pro-
Stable With a 1-µF Ceramic Capacitor
prietary BiCMOS fabrication process to yield ex-
Excellent Load/Line Transient Response
tremely low dropout voltages (e.g., 250 mV at 1 A).
Each
device
achieves
fast
start-up
times
Very Low Dropout Voltage (250 mV at Full
(approximately 50 µs with a 0.001-µF bypass capaci-
Load, TPS79630)
tor) while consuming very low quiescent current
3 x 3 SON, 6-Pin SOT223-6, and
(265 µA typical). Moreover, when the device is placed
5-Pin DDPAK Packages
in standby mode, the supply current is reduced to
less than 1 µA. The TPS79630 exhibits approximately
40 µVRMS of output voltage noise at 3.0-V output, with
RF: VCOs, Receivers, ADCs
a 0.1-µF bypass capacitor. Applications with analog
components that are noise sensitive, such as portable
Audio
RF electronics, benefit from the high PSRR, low
Bluetooth™, Wireless LAN
noise features, and the fast response time.
Cellular and Cordless Telephones
Handheld Organizers, PDAs
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.
Bluetooth is a trademark of Bluetooth SIG, Inc.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2004, 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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