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TPS795 Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS795
Description  Ultralow-Noise, High-PSRR, Fast, RF, 500-mA Low-Dropout Linear Regulators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS795 Datasheet(HTML) 1 Page - Texas Instruments

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Frequency (Hz)
0
0.1
0.2
0.3
0.4
0.5
100
1 k
10 k
100 k
IOUT = 1 mA
VIN = 5.5 V
COUT = 2.2 F
m
CNR = 0.1 F
m
IOUT = 0.5 A
0
10
20
30
40
50
60
70
80
1
10
100
1 k
10 k
100 k 1 M
10 M
VIN = 4 V
COUT = 10 F
m
CNR = 0.01 F
m
IOUT = 1 mA
IOUT = 500 mA
Frequency (Hz)
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TPS795
SLVS350I – OCTOBER 2002 – REVISED MAY 2015
TPS795 Ultralow-Noise, High-PSRR, Fast, RF, 500-mA Low-Dropout Linear Regulators
1 Features
3 Description
The TPS795 family of low-dropout (LDO), low-power
1
500-mA Low-Dropout Regulator With Enable
linear voltage regulators features high power-supply
Available in Fixed and Adjustable (1.2-V to 5.5-V)
rejection ratio (PSRR), ultralow noise, fast start-up,
Versions
and excellent line and load transient responses in
High PSRR (50 dB at 10 kHz)
small outline, 6-pin SOT-223 and 3-mm × 3-mm
WSON packages. Each device in the family is stable
Ultralow Noise (33
μVRMS, TPS79530)
with a small 1-
μF ceramic capacitor on the output.
Fast Start-Up Time (50
μs)
The family uses an advanced, proprietary BiCMOS
Stable With a 1-
μF Ceramic Capacitor
fabrication process to yield extremely low dropout
voltages (for example, 110 mV at 500 mA). Each
Excellent Load and Line Transient Response
device achieves fast start-up times (approximately
Low Dropout Voltage (110 mV at Full Load,
50
μs with a 0.001-μF bypass capacitor) while
TPS79530)
consuming very low quiescent current (265
μA,
6-Pin SOT-223 and 3-mm × 3-mm WSON
typical). Moreover, when the device is placed in
Packages
standby mode, the supply current is reduced to less
than
1
μA.
The
TPS79530
device
exhibits
approximately 33
μVRMS of output voltage noise at 3-
2 Applications
V output with a 0.1-
μF bypass capacitor. Applications
RF: VCOs, Receivers, ADCs
with analog components that are noise-sensitive,
Audio
such as portable RF electronics, benefit from the
high-PSRR and low-noise features, as well as from
Bluetooth®, Wireless LAN
the fast response time.
Cellular and Cordless Telephones
Handheld Organizers, PDAs
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOT-223 (6)
6.50 mm × 3.50 mm
TPS795
WSON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TPS79530 Ripple Rejection vs Frequency
TPS79530 vs Frequency
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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