TPS7A92 Datasheet, PDF (1/33 Pages) Texas Instruments – 2-A, High-Accuracy, Low-Noise LDO Voltage Regulator

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TPS7A92
2-A, High-Accuracy, Low-Noise LDO Voltage Regulator
TPS7A92
SBVS318 – JULY 2017
1 Features
•1 1.0% Accuracy Over Line, Load, and Temperature
• Low Output Noise: 4.6 µV_RMS (10 Hz–100 kHz)
• Low Dropout: 180 mV (Typ) at 2A
• Wide Input Voltage Range: 1.4 V to 6.5 V
• Wide Output Voltage Range: 0.8 V to 5.2 V
• High Power-Supply Ripple Rejection (PSRR):
– 60 dB at DC
– 40 dB at 100 kHz
– 40 dB at 1 MHz
• Fast Transient Response
• Adjustable Start-Up In-Rush Control with
Selectable Soft-Start Charging Current
• Open-Drain Power-Good (PG) Output
• θ_JC = 3.2°C/W
• Stable with a 22-µF or Larger Ceramic Output
Capacitor
• 2.5-mm × 2.5-mm, 10-Pin WSON Package
2 Applications
• High-Speed Analog Circuits:
– VCO, ADC, DAC, LVDS
• Imaging: CMOS Sensors, Video ASICs
• Test and Measurement
• Instrumentation, Medical, and Audio
• Digital Loads: SerDes, FPGA, DSP
2.0 V
Typical Application Circuit
CIN
22 PF
CNR/SS
0.1 PF
IN
TPS7A92
OUT
EN
FB
SS_CTRL
NR/SS
PG
GND
R1 5.9 k:
1.2 V
COUT
22 F
CFF 10 nF
R2
VOU T
11.8 k:
RPG
20 k:
PG
Copyright © 2017, Texas Instruments Incorporated
3 Description
The TPS7A92 device is a low-noise (4.8 µV_RMS), low-
dropout (LDO) voltage regulator capable of sourcing
2 A with only 180 mV of dropout.
The TPS7A92 output is adjustable with external
resistors from 0.8 V to 5.2 V. The TPS7A92 wide
input-voltage range supports operation as low as
1.4 V and up to 6.5 V.
With 1% output voltage accuracy (over line, load, and
temperature) and soft-start capabilities to reduce in-
rush current, the TPS7A92 is ideal for powering
sensitive analog low-voltage devices [such as
voltage-controlled oscillators (VCOs), analog-to-digital
converters (ADCs), digital-to-analog converters
(DACs), high-end processors, and field-
programmable gate arrays (FPGAs)].
The TPS7A92 is designed to power noise-sensitive
components such as those found in high-speed
communication, video, medical, or test and
measurement applications. The very low 4.6-µV_RMS
output noise and wideband PSRR (40 dB at 1 MHz)
minimizes phase noise and clock jitter. These
features maximize performance of clocking devices,
ADCs, and DACs.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A92
WSON (10)
2.50 mm × 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
SPACE
SPACE
Typical Application Diagram
IN
PG
EN
OUT
VDD
EN
ADC
ADC3xxx
ADC3xJxx
ADS4xJBxx
ADC5xJxx
ADC12Jxxxx
Copyright © 2016, Texas Instruments Incorporated
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.