TPS7A8001_15 Datasheet, PDF (1/28 Pages) Texas Instruments – TPS7A8001 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1A Linear Regulator

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TPS7A8001
SBVS135I – JUNE 2010 – REVISED AUGUST 2015
TPS7A8001 Low-Noise, Wide-Bandwidth, High PSRR,
Low-Dropout 1A Linear Regulator
1 Features
•1 Low-Dropout 1-A Regulator With Enable
• Adjustable Output Voltages: 0.8 V to 6 V
• Wide-Bandwidth High PSRR:
– 63 dB at 1 kHz
– 57 dB at 100 kHz
– 38 dB at 1 MHz
• Low Noise: (14 × V_OUT ) μV_RMS Typical (100 Hz to
100 kHz)
• Stable with a 4.7-μF Ceramic Capacitor
• Excellent Load/Line Transient Response
• 3% Overall Accuracy (Over Load/Line/Temp)
• Overcurrent and Overtemperature Protection
• Very Low Dropout: 170 mV Typical at 1 A
• 3-mm × 3-mm VSON-8 DRB Package
2 Applications
• Telecom Infrastructure
• Audio
• High-Speed I/F (PLL/VCO)
3 Description
The TPS7A8001 is a low-dropout linear regulator
(LDO) offering very high power-supply ripple rejection
(PSRR) at the output. This LDO uses an advanced
BiCMOS process and a PMOSFET pass device to
achieve very low noise, excellent transient response,
and excellent PSRR performance.
The TPS7A8001 is stable with a 4.7-μF ceramic
output capacitor, and uses a precision voltage
reference and feedback loop to achieve a worst-case
accuracy of 3% over all load, line, process, and
temperature variations.
This device is fully specified over the temperature
range of T_J = –40°C to 125°C and is offered in a
3mm × 3mm, VSON-8 package with a thermal pad.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A80
VSON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Diagram
Optional 1.0mF input capacitor.
May improve source impedance,
noise, or PSRR.
V_IN
IN
OUT
V_OUT
TPS7A8001
EN
FB
R₁
4.7mF
Ceramic
GND NR
R₂
V_EN
To avoid inrush current,
it is recommended to
always connect a
1nF to 10nF capacitor
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.