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TPS73047 Datasheet(PDF) 1 Page - Texas Instruments

Part No. TPS73047
Description  LOW-NOISE, HIGH PSRR, RF 200-mA LOW-DROPOUT LINEAR REGULATORS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPS73047 Datasheet(HTML) 1 Page - Texas Instruments

 
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DBV 5
DBV 6
YZQ
www.ti.com
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
TPS73028
RIPPLE REJECTION
vs
FREQUENCY
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
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
TPS73028
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
IN
EN
OUT
NR
GND
YZQ PACKAGE
(TOP VIEW)
A3
A1
C3
C1
B2
TPS730xx
SBVS054G – NOVEMBER 2004 – REVISED DECEMBER 2006
LOW-NOISE, HIGH PSRR, RF 200-mA
LOW-DROPOUT LINEAR REGULATORS
• 200-mA RF Low-Dropout Regulator
The
TPS730xx
family
of
low-dropout
(LDO)
With Enable
low-power linear voltage regulators features high
power-supply rejection ratio (PSRR), ultralow-noise,
• Available in Fixed Voltages from 1.8V to 3.3V
fast start-up, and excellent line and load transient
and Adjustable (1.22V to 5.5V)
responses a small SOT23 package. NanoStar™
• High PSRR (68dB at 1kHz)
packaging gives an ultrasmall footprint as well as an
• Ultralow-Noise (23µV
RMS, TPS73018)
ultralow profile and package weight, making it ideal
for portable applications such as handsets and
• Fast Start-Up Time (50µs)
PDAs. Each device in the family is stable, with a
• Stable With a 2.2µF Ceramic Capacitor
small 2.2
µF ceramic capacitor on the output. The
• Excellent Load/Line Transient Response
TPS730xx family uses an advanced, proprietary
BiCMOS fabrication process to yield low dropout
• Very Low Dropout Voltage (120mV at 200mA)
voltages (e.g., 120mV at 200mA, TPS73030). Each
• 5- and 6-Pin SOT23 (DBV), and Wafer Chip
device achieves fast start-up times (approximately
Scale (YZQ) Packages
50
µs with a 0.001µF bypass capacitor) while
consuming low quiescent current (170
µA typical).
Moreover, when the device is placed in standby
• RF: VCOs, Receivers, ADCs
mode, the supply current is reduced to less than
1
µA. The TPS73018 exhibits approximately 23µV
RMS
• Audio
of output voltage noise at 2.8V output with a 0.01
µF
• Cellular and Cordless Telephones
bypass
capacitor.
Applications
with
analog
• Bluetooth®, Wireless LAN
components
that
are
noise-sensitive,
such
as
• Handheld Organizers, PDAs
portable RF electronics, benefit from the high PSRR
and low-noise features as well as the fast response
time.
Figure 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.
NanoStar is a trademark of Texas Instruments.
Bluetooth is a registered trademark of Bluetooth Sig, Inc.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2006, 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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