TPS73201DBVR

1 FEATURES

• Stable with No Output Capacitor or Any Value or Type of Capacitor

• Input Voltage Range: 1.7V to 5.5V

• Ultralow Dropout Voltage: 40mV Typ at 250mA

• Excellent Load Transient Response—with or without Optional Output Capacitor

• New NMOS Topology Provides Low Reverse Leakage Current

• Low Noise: 30µVRMS Typ (10kHz to 100kHz)

• 0.5% Initial Accuracy

• 1% Overall Accuracy (Line, Load, and Temperature)

• Less Than 1µA Max IQ in Shutdown Mode

• Thermal Shutdown and Specified Min/Max Current Limit Protection

• Available in Multiple Output Voltage Versions – Fixed Outputs of 1.2V, 1.5V, 1.6V, 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V

– Adjustable Outputs From 1.20V to 5.5V

– Custom Outputs Available

2 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

3 DESCRIPTION

The TPS732xx family of low-dropout (LDO) voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This top-ology 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 TPS732xx uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 1µA and ideal for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.

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