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TPS79501DCQG4 Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS79501DCQG4
Descripción Electrónicos  ULTRALOW-NOISE, HIGH-PSRR, FAST, RF, 500-mA LOW-DROPOUT LINEAR REGULATORS
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS79501DCQG4 Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
0
10
20
30
40
50
60
70
80
1
10
100
1k
10k
100k 1M
10M
TPS79530
RIPPLEREJECTION
vs
FREQUENCY
VIN =4V
COUT =10 mF
CNR =0.01 mF
IOUT =1mA
IOUT =500mA
Frequency (Hz)
Frequency(Hz)
0
0.1
0.2
0.3
0.4
0.5
100
1k
10k
100k
IOUT =1mA
VIN =5.5V
COUT =2.2 mF
CNR =0.1 mF
IOUT =0.5A
TPS79530
OUTPUT SPECTRALNOISEDENSITY
vs
FREQUENCY
1
2
3
4
5
DCQ PACKAGE
SOT223-6
(TOPVIEW)
NR/FB
OUT
GND
IN
EN
6
GND
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)
TPS795xx
SLVS350G – OCTOBER 2002 – REVISED JULY 2006
ULTRALOW-NOISE, HIGH-PSRR, FAST, RF, 500-mA
LOW-DROPOUT LINEAR REGULATORS
500-mA Low-Dropout Regulator With Enable
The
TPS795xx
family
of
low-dropout
(LDO),
low-power linear voltage regulators features high
Available in Fixed and Adjustable (1.2-V to
power-supply rejection ratio (PSRR), ultralow noise,
5.5-V) Versions
fast start-up, and excellent line and load transient
High PSRR (50 dB at 10 kHz)
responses in small outline, SOT223-6 and 3 x 3 SON
Ultralow Noise (33
µV
RMS, TPS79530)
packages. Each device in the family is stable with a
small 1-
µF ceramic capacitor on the output. The
Fast Start-Up Time (50
µs)
family uses an advanced,
proprietary
BiCMOS
Stable With a 1-
µF Ceramic Capacitor
fabrication process to yield extremely low dropout
Excellent Load/Line Transient Response
voltages (for example, 110 mV at 500 mA). Each
device achieves fast start-up times (approximately 50
Very Low Dropout Voltage (110 mV at Full
µs with a 0.001-µF bypass capacitor) while
Load, TPS79530)
consuming very low quiescent current (265
µA,
6-Pin SOT223 and 3
× 3 SON Packages
typical). Moreover, when the device is placed in
standby mode, the supply current is reduced to less
than 1
µA. The TPS79530 exhibits approximately 33
RF: VCOs, Receivers, ADCs
µV
RMS of output voltage noise at 3.0 V output with a
0.1-
µF bypass capacitor. Applications with analog
Audio
components
that
are
noise-sensitive,
such
as
Bluetooth
®, Wireless LAN
portable RF electronics, benefit from the high-PSRR
Cellular and Cordless Telephones
and low-noise features, as well as from the fast
Handheld Organizers, PDAs
response time.
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 registered 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 © 2002–2006, 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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