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Texas Instruments TPS7A03 200mA Low-Dropout (LDO) Linear Regulators

Texas Instruments TPS7A03 200mA Low-Dropout (LDO) Linear Regulators are ultra-small, ultra-low quiescent current LDO linear regulators that can source 200mA with excellent transient performance. The TPS7A03, with an ultra-low IQ of 200nA, is designed specifically for applications where a very low quiescent current is a critical parameter. This device maintains low IQ consumption even in dropout mode to increase battery life. When in shutdown or disabled mode, the device consumes ultra-low, 3nA IQ that helps increase the battery's shelf life. 

The Texas Instruments TPS7A03 has an output range of 0.8V to 5.0V and is available in 50mV steps to support the lower core voltages of modern microcontrollers (MCUs). The TPS7A03 features a smart enable circuit with an internally controlled pull-down resistor that keeps the LDO disabled even when the EN pin is left floating and helps minimize the external components used to pull down the EN pin. This circuit also helps minimize the current drawn through the external pull-down circuit when the device is enabled. The TPS7A03 is fully specified for TJ = -40°C to +125°C operation.

Features

  • 200nA (typ) ultra-low IQ, even in dropout
  • 3nA (typ) shutdown IQ
  • Excellent transient response (1mA to 50mA)
    • < 10µs settling time
    • 80mv undershoot
  • 1.5V to 6.0V input voltage range
  • 0.8V to 5.0V (fixed) output voltage range
  • 1.5% over temperature output accuracy
  • Smart enable pull-down
  • Very low dropout
    • 270mV (max) at 200mA (VOUT = 3.3V)
  • Stable with a 1µF or larger capacitor

Applications

  • Wearables electronics
  • Thermostats, smoke, and heat detectors
  • Gas, heat, and water meters
  • Blood glucose monitors and pulse oximeters
  • Residential circuit breakers and fault indicators
  • Building security and video surveillance devices
  • EPOS card readers

Functional Block Diagram

Block Diagram - Texas Instruments TPS7A03 200mA Low-Dropout (LDO) Linear Regulators

Related Development Tool

Texas Instruments MULTIPKGLDOEVM-823 LDO Regulator Evaluation Module

Helps evaluate the operation and performance of several common packages of linear regulators.

Learn Moreo Texas Instruments MULTIPKGLDOEVM-823 LDO Regulator Evaluation Module View Productspowiązany z Texas Instruments MULTIPKGLDOEVM-823 LDO Regulator Evaluation Module
Opublikowano: 2020-02-07 | Zaktualizowano: 2024-10-17