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TPS793475DBVRG4 Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce TPS793475DBVRG4
Description  ULTRALOW-NOISE, HIGH PSRR, FAST RF 200mA LOW-DROPOUT LINEAR REGULATORS IN NanoStar WAFER CHIP SCALE AND SOT23
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS793475DBVRG4 Fiches technique(HTML) 1 Page - Texas Instruments

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DBV 5
DBV 6
YEQ, YZQ
1
FEATURES
DESCRIPTION
APPLICATIONS
3
2
4
5
DBV PACKAGE
(TOP VIEW)
1
IN
GND
EN
OUT
NR
Fixed Option
3
2
4
6
DBV PACKAGE
(TOP VIEW)
1
IN
GND
EN
OUT
NR
5
FB
Adjustable Option
TPS79328
RIPPLE REJECTION
vs
FREQUENCY
IN
EN
OUT
NR
GND
YEQ, YZQ
PACKAGE
(TOP VIEW)
10
100
1 k
10 k
10
40
80
100 k
1 M
10 M
Frequency (Hz)
IOUT = 10 mA
50
0
VIN = 3.8 V
COUT = 10 µF
CNR = 0.01 µF
IOUT = 200 mA
20
30
60
70
90
100
A3
A1
C3
C1
B2
0
0.05
0.10
0.15
0.20
0.25
0.30
100
1 k
10 k
100 k
Frequency (Hz)
IOUT = 1 mA
VIN = 3.8 V
COUT = 2.2 µF
CNR = 0.1 µF
IOUT = 200 mA
TPS79328
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
TPS793xx
SLVS348K – JULY 2001 – REVISED OCTOBER 2007
www.ti.com
ULTRALOW-NOISE, HIGH PSRR, FAST RF 200mA LOW-DROPOUT LINEAR
REGULATORS IN NanoStar™ WAFER CHIP SCALE AND SOT23
234
• 200mA RF Low-Dropout Regulator
The
TPS793xx
family
of
low-dropout
(LDO)
With Enable
low-power linear voltage regulators features high
power-supply rejection ratio (PSRR), ultralow-noise,
• Available in Fixed Voltage Versions from 1.8V
fast start-up, and excellent line and load transient
to 4.75V and Adjustable (1.22V to 5.5V)
responses in NanoStar wafer chip scale and SOT23
• High PSRR (70dB at 10kHz)
packages. NanoStar packaging gives an ultrasmall
• Ultralow-Noise (32μV
RMS, TPS79328)
footprint as well as an ultralow profile and package
weight, making it ideal for portable applications such
• Fast Start-Up Time (50μs)
as handsets and PDAs. Each device in the family is
• Stable With a 2.2μF Ceramic Capacitor
stable, with a small 2.2
μF ceramic capacitor on the
• Excellent Load/Line Transient Response
output. The TPS793xx family uses an advanced,
proprietary BiCMOS fabrication process to yield
• Very Low Dropout Voltage (112mV at 200mA,
extremely low dropout voltages (for example, 112mV
TPS79330)
at 200mA, TPS79330). Each device achieves fast
• 5- and 6-Pin SOT23 (DBV) and NanoStar Wafer
start-up times (approximately 50
μs with a 0.001μF
Chip Scale (YEQ, YZQ) Packages
bypass
capacitor)
while
consuming
very
low
quiescent current (170
μA typical). Moreover, when
the device is placed in standby mode, the supply
• RF: VCOs, Receivers, ADCs
current is reduced to less than 1
μA. The TPS79328
exhibits approximately 32
μVRMS of output voltage
• Audio
noise at 2.8V output with a 0.1
μF bypass capacitor.
• Cellular and Cordless Telephones
Applications
with
analog
components
that
are
• Bluetooth®, Wireless LAN
noise-sensitive, such as portable RF electronics,
• Handheld Organizers, PDAs
benefit from the high PSRR and low-noise features
as well as the fast response time.
Figure 1.
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
NanoStar is a trademark of Texas Instruments.
3
Bluetooth is a registered 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 © 2001–2007, 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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