Texas Instruments TPS7A05 Ultra-Low IQ Low-Dropout Regulator

Texas Instruments TPS7A05 Ultra-Low IQ Low-Dropout Regulator is an ultra-small, low quiescent current low-dropout regulator (LDO) that can source 200mA with excellent transient performance. This device has an output range of 0.8V to 3.3V with a typical 1% accuracy. The Texas Instruments TPS7A05, with ultralow IQ (1µA), is designed specifically for battery-powered applications where a very-low quiescent current is a critical parameter for extending battery life. The device can be operated from rechargeable Li-Ion batteries and Li-primary battery chemistries such as Li-SOCl2, Li-MnO2, and two- or three-cell alkaline batteries. The TPS7A05 has an active pull-down circuit to discharge the output when disabled quickly.

Features

  • 1µA (typ.), 3µA (max.) ultra-low IQ 
    • IGND: 6µA (typ.) at 200mA
  • Excellent transient response
  • Packages
    • 1.0mm×1.0mm X2SON (4)
    • 0.65mm×0.65mm DSBGA (4)
    • SOT-23 (5)
  • 1.4V to 5.5V input voltage range 
  • 1% typical, 3% maximum output accuracy 
  • Available in fixed-output voltage
    • 0.8V to 3.3V
  • Very low dropout
    • 235mV (max.) at 200mA (3.3VOUT)
  • Active output discharge
  • Foldback current limit
  • Stable with a 0.47µF or larger capacitor

Applications

  • Wearable electronics
  • Ultrabooks, tablets, eReaders
  • Always-on power supplies
  • Set-top boxes
  • Gaming controllers, remote controls, toys, and drones
  • Wireless handsets and smartphones
  • Portable and battery-powered equipment

Functional Block Diagram

Block Diagram - Texas Instruments TPS7A05 Ultra-Low IQ Low-Dropout Regulator
發佈日期: 2018-06-22 | 更新日期: 2024-04-23