TPS7A8300 Datasheet, PDF (1/33 Pages) Texas Instruments – 2-A, 6-VRMS, RF, LDO Voltage Regulator

TPS7A8300
www.ti.com
SBVS197C – MAY 2013 – REVISED JULY 2013
2-A, 6-µV_RMS, RF, LDO Voltage Regulator
Check for Samples: TPS7A8300
FEATURES
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•23 Ultralow Dropout: 125 mV Maximum at 2 A
• Output Voltage Noise: 6 µV_RMS
• Power-Supply Ripple Rejection:
– 40 dB at 1 MHz
• Input Voltage Range:
– Without BIAS: +1.4 V to +6.5 V
– With BIAS: +1.1 V to +6.5 V
• Two Output Voltage Modes:
– ANY-OUT™ Version (User-Programmable
Output via PCB Layout):
– No External Resistor or Feed-Forward
Capacitors Required
– Output Voltage Range: +0.8 V to 3.95 V
– Adjustable Version:
– Output Voltage Range: +0.8 V to 5.0 V
• 1.0% Accuracy Over Line, Load, and
Temperature
• Stable with a 22-µF Output Ceramic Capacitor
• Programmable Soft-Start and Power-Good
(PG) Output
• Available Packages:
– 5-mm × 5-mm QFN-20
– 3,5-mm × 3,5-mm QFN-20 ⁽¹⁾
(1) _{3,5-mm × 3,5-mm QFN-20 package is product-preview.}
APPLICATIONS
• RF, IF Components: VCO, ADC, DAC, LVDS
• Wireless Infrastructure: SerDes, FPGA, DSP™
• Test and Measurement
• Instrumentation, Medical, and Audio
DESCRIPTION
The TPS7A8300 is a low-noise (6 µV_RMS), low-
dropout voltage regulator (LDO) capable of sourcing
a 2-A load with only 125 mV of maximum dropout.
The TPS7A8300 output voltages are fully user-
adjustable (up to 3.95 V) using a printed circuit board
(PCB) layout without the need of external resistors or
feed-forward capacitors, thus reducing overall
component count. For higher output voltage
applications, the device achieves output voltages up
to 5 V with the use of external resistors. The device
supports very low input voltages (down to 1.1 V) with
the use of an additional BIAS rail.
With very high accuracy (1% over line, load, and
temperature), remote sensing, and soft-start
capabilities to reduce inrush current, the TPS7A8300
is ideal for powering high-current, low-voltage devices
such as high-end microprocessors and field-
programmable gate arrays (FPGAs).
The TPS7A8300 is designed to power-up noise-
sensitive components in high-speed communication
applications. The very low-noise, 6-µV_RMS device
output and high broad-bandwidth PSRR (40 dB at
1 MHz) minimizes phase noise and clock jitter in
high-frequency signals. These features maximize
performance of clocking devices, analog-to-digital
converters (ADCs), and digital-to-analog converters
(DACs).
For applications where positive and negative low-
noise rails are required, consider TI's TPS7A33 family
of negative high-voltage, ultralow-noise linear
regulators.
TPS7A8300
RF LDO
Amplifier
TPS7A33
Negative-Voltage
Regulator
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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.
ANY-OUT, DSP, PowerPAD are trademarks of Texas Instruments.
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All other trademarks are the property of their respective owners.
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UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated