Extended Temperature Performance of -55°C to 125°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree(1)
Stable With No Output Capacitor or Any Value or Type of Capacitor
Input Voltage Range of 1.7 V to 5.5 V
Ultralow Dropout Voltage: 30 mV Typical
Excellent Load TransientResponseWith or Without Optional Output Capacitor
New NMOS Topology Provides Low Reverse Leakage Current
Low Noise: 30 µVRMS Typ (10 kHz to 100 kHz)
0.5% Initial Accuracy
1% Overall Accuracy Over Line, Load, and Temperature
Less Than 1 µA Maximum IQ in Shutdown Mode
Thermal Shutdown and Specified Min/Max Current Limit Protection
Available in Multiple Output Voltage Versions
Fixed Outputs of 1.2 V to 5 V
Adjustable Outputs from 1.2 V to 5.5 V
Custom Outputs Available
APPLICATIONS
Portable/Battery-Powered Equipment
Post-Regulation for Switching Supplies
Noise-Sensitive Circuitry such as VCOs
Point of Load Regulation for DSPs, FPGAs, ASICs, and Microprocessors
(1) Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
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## DESCRIPTION/ORDERING INFORMATION
The TPS731xx family of low-dropout (LDO) linear voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low ESR and even allows operation without a capacitor. It also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.
The TPS731xx uses an advanced BiCMOS process to yield high precision while delivering low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 1 µA and ideal for portable applications. The low output noise (30 µVRMS with 0.1 µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.
