TPS7A4501M Datasheet, PDF (1/21 Pages) Texas Instruments – LOW-NOISE FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATOR

TPS7A4501M
www.ti.com
SLVSBG4 – DECEMBER 2012
LOW-NOISE FAST-TRANSIENT-RESPONSE
1.5-A LOW-DROPOUT VOLTAGE REGULATOR
Check for Samples: TPS7A4501M
FEATURES
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• Optimized for Fast Transient Response
• Output Current: 1.5 A
• High Output Voltage Accuracy: 1% at 25°C
• Dropout Voltage: 300 mV
• Low Noise: 35 μV_RMS (10 Hz to 100 kHz)
• High Ripple Rejection: 68 dB at 1KHz
• 1-mA Quiescent Current
• No Protection Diodes Needed
• Controlled Quiescent Current in Dropout
• Adjustable Output from 1.21 V to 20 V
• Less Than 1-μA Quiescent Current in
Shutdown
• Stable with 10-μF Ceramic Output Capacitor
• Reverse-Battery Protection
• Reverse Current Protection
APPLICATIONS
• Industrial
• Wireless Infrastructure
• Radio-Frequency Systems
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly and Test Site
• One Fabrication Site
• Available in Military (–55°C to 125°C)
Temperature Range ⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
(1) Custom temperature ranges available
U PACKAGE
(TOP VIEW)
¾_{SHDN 1}
IN 2
IN 3
IN 4
NC 5
10 GND
9 SENSE/ADJ
8 OUT
7 OUT
6 OUT
DESCRIPTION
The TPS7A4501 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply
1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less
than 1 μA in shutdown. Quiescent current is well controlled; it does not rise in dropout, as with many other
regulators. In addition to fast transient response, the TPS7A4501 regulator has very low output noise, which
makes it ideal for sensitive RF supply applications.
Output voltage range is from 1.21 V to 20 V. The TPS7A4501 is stable with output capacitance as low as 10 μF.
Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other
regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and
reverse-current protection. The device is available as an adjustable device with a 1.21-V reference voltage. The
TPS7A4501 regulator is available in the 10-pin GDFP (U) package.
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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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated