TPS7A8300_15 Datasheet, PDF (1/45 Pages) Texas Instruments – TPS7A8300 2-A, 6-μVRMS, RF, LDO Voltage Regulator

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TPS7A8300
SBVS197F – MAY 2013 – REVISED OCTOBER 2015
TPS7A8300 2-A, 6-µV_RMS, RF, LDO Voltage Regulator
1 Features
•1 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 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 Output
• Power-Good (PG) Output
• Available Packages:
– 5-mm × 5-mm VQFN-20
– 3.5-mm × 3.5-mm VQFN-20
2 Applications
• RF, IF Components: VCO, ADC, DAC, LVDS
• Wireless Infrastructure: SerDes, FPGA, DSP™
• Test and Measurement
• Instrumentation, Medical, and Audio
Application Example
TPS7A8300
RF LDO
3 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,
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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A8300
VQFN (20)
VQFN (20)
5.00 mm × 5.00 mm
3.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Amplifier
TPS7A33
Negative-Voltage
Regulator
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.