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TPS7A4515KTTR Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS7A4515KTTR
Description  LOW-NOISE FAST-TRANSIENT-RESPONSE 1.5-A LDO VOLTAGE REGULATORS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS7A4515KTTR Datasheet(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
1
3
2
GND
IN
SHDN
SENSE/ADJ
OUT
5
4
KTT PACKAGE
(TOP VIEW)
TPS7A45xx
www.ti.com ........................................................................................................................................................ SLVS720A – JUNE 2008 – REVISED AUGUST 2008
LOW-NOISE FAST-TRANSIENT-RESPONSE 1.5-A LDO VOLTAGE REGULATORS
2
• Optimized for Fast Transient Response
• Output Current: 1.5 A
The TPS7A45xx devices are low-dropout (LDO)
regulators optimized for fast transient response. The
• High Output Voltage Accuracy : 1% at 25°C
device can supply 1.5 A of output current with a
• Dropout Voltage: 300 mV
dropout voltage of 300 mV. Operating quiescent
• Low Noise: 35 µV
RMS (10 Hz to 100 kHz)
current is 1 mA, dropping to less than 1
µA in
shutdown. Quiescent current is well controlled; it does
• High Ripple Rejection: 68 dB
not rise in dropout, as with many other regulators. In
• 1-mA Quiescent Current
addition to fast transient response, the TPS7A45xx
• No Protection Diodes Needed
regulators have very low output noise, which makes
them ideal for sensitive RF supply applications.
• Controlled Quiescent Current in Dropout
• Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V
Output voltage range is from 1.21 V to 20 V. The
TPS7A45xx
regulators
are
stable
with
output
• Adjustable Output from 1.21 V to 20 V
capacitors as low as 10
µF. Small ceramic capacitors
• Less Than 1-µA Quiescent Current in
can be used without the necessary addition of ESR,
Shutdown
as
is
common
with
other
regulators.
Internal
• Stable with 10-µF Output Capacitor
protection
circuitry
includes
reverse-battery
protection, current limiting, thermal limiting, and
• Stable with Ceramic Capacitors
reverse-current protection. The devices are available
• Reverse-Battery Protection
in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, 3.3 V,
• No Reverse Current
and as an adjustable device with a 1.21-V reference
voltage. The TPS7A45xx regulators are available in
• Thermal Limiting
the 5-pin TO-263 (KTT) package.
• 3.3-V to 2.5-V Logic Power Supplies
• Post Regulator for Switching Supplies
• Wireless Infrastructure
• Radio-Frequency Systems
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
PowerPAD, PowerFLEX are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, 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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