TPS73701DRBT Description

The voltage-follower design of the TPS737xx family of linear low-dropout (LDO) voltage regulators incorporates an NMOS pass element. This architecture allows for a wide range of load configurations because it is relatively unaffected by the output capacitor value and ESR. Even with a tiny 1-F ceramic output capacitor, the load transient responsiveness is good. Low dropout is also possible using the NMOS topology.

The TPS737xx family employs a cutting-edge BiCMOS technology to produce high precision parts with extremely low dropout voltages and low ground pin current.

When disabled, current consumption is less than 20 nA, making it perfect for portable applications. Thermal shutdown and a foldback current limit protect these devices.

TPS73701DRBT Features

• Stable With 1-μF or Larger Ceramic Output Capacitor

• Input Voltage Range: 2.2 V to 5.5 V

• Ultralow Dropout Voltage: 130 mV Typical at 1 A

• Excellent Load Transient Response—Even With Only 1-μF Output Capacitor

• NMOS Topology Delivers Low Reverse Leakage Current

• 1% Initial Accuracy

• 3% Overall Accuracy Over Line, Load, and Temperature

• Less Than 20 nA Typical IQ in Shutdown Mode

• Thermal Shutdown and Current Limit for Fault Protection

• Available in Multiple Output Voltage Versions

TPS73701DRBT Applications

• Point-of-Load Regulation for DSPs, FPGAs, ASICs, and Microprocessors

• Post-Regulation for Switching Supplies

• Portable and Battery-Powered Equipment