Texas Instruments TPS728 Linear Regulators

Texas Instruments TPS728 Linear Regulators are low-dropout (LDO) linear regulators with a selectable dual-voltage level output. The Texas Instruments TPS728 Linear Regulators are designed for applications that require output voltage regulation and are specified for operation over a –40°C to +125°C range. Programming fuses and memory cards, reducing leakage effects, and conserving power in nanometric processes are some application examples.

Features

  • 230mV typical at 200mA very low dropout
  • 3% accuracy over load/line/temperature
  • 50µA in active mode low IQ
  • Available in fixed-output voltages from 0.9V to 3.6V using innovative factory EEPROM programming
  • VSET pin toggles output voltage between two preset levels
    • Preset output voltage levels can be EEPROM-programmed to any combination
  • 65dB at 1kHz high PSRR 
  • Stable with a 1.0µF ceramic capacitor
  • Thermal shutdown and over-current protection
  • Available in wafer-level chip scale and 2mm x 2mm SON packages

Applications

  • Power rails with programming mode
  • Dual voltage levels for power-saving mode
  • Leakage reduction for 90nm and 65nm processors
  • Wireless handsets, smartphones, PDAs
  • MP3 players and other handheld products

Functional Block Diagram

Block Diagram - Texas Instruments TPS728 Linear Regulators
게시일: 2008-02-26 | 갱신일: 2022-03-11