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Texas Instruments TPS732/TPS732-Q1 Ultra LDO Voltage Regulators

Texas Instruments TPS732/TPS732-Q1 Ultra-Low-Dropout (LDO) Voltage Regulators use an NMOS pass transistor in a voltage-follower configuration. This device is stable using output capacitors with low equivalent series resistance (ESR) and even allows operation without a capacitor. The device also provides a ground pin current and high reverse blockage (low reverse current), nearly constant over all output current values.

The Texas Instruments TPS732/TPS732-Q1 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. When not enabled, the current consumption is less than 1µA and is designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is intended for powering VCOs. This device is protected by thermal shutdown and a foldback current limit. The TPS732-EP devices have gold bond wires, a temperature range of –55 to +105°C, and an SnPb lead finish. The TPS732-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Stable with no output capacitor or any value or type of capacitor
  • 1.7V to 5.5V input voltage range
  • The ultra-low dropout voltage of 40mV typical at 250mA
  • Excellent load transient response, with or without an optional output capacitor
  • NMOS topology provides low reverse leakage current
  • Low noise of 30µVRMS typical (10kHz to 100kHz)
  • 0.5% initial accuracy
  • 1% overall accuracy (line, load, and temperature)
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified min. and max. current limit protection
  • Available in multiple output voltage versions
    • Fixed outputs of 1.2V to 5V
    • Adjustable outputs from 1.2V to 5.5V
    • Custom outputs available

Applications

  • Portable and battery-powered equipment
  • Post-regulation for switching supplies
  • Noise-sensitive circuitry such as VCOs
  • Point of load regulation for DSPs, FPGAs, ASICs, and microprocessors

Datasheets

Videos

Block Diagram - Adjustable

Block Diagram - Texas Instruments TPS732/TPS732-Q1 Ultra LDO Voltage Regulators

Block Diagram - Fixed

Block Diagram - Texas Instruments TPS732/TPS732-Q1 Ultra LDO Voltage Regulators
Publicado: 2024-10-16 | Actualizado: 2025-04-25