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Texas Instruments TLV7A03 Ultra-Low IQ LDO Linear Regulators

Texas Instruments TLV7A03 Ultra-Low IQ Low-Dropout (LDO) Linear Regulators are ultra-small, ultra-low quiescent current LDO linear regulators that source 200mA with excellent transient performance. The TLV7A03, with an ultra-low IQ of 250nA, is designed specifically for applications where very low quiescent current is a critical parameter. This device maintains low IQ consumption to increase battery life even in dropout mode. When in shutdown or disabled mode, the device consumes only 3nA IQ, which helps increase battery shelf life. The TLV7A03 supports the lower core voltages of modern microcontrollers (MCUs) with an output range of 0.8V to 5.0V, available in 50mV steps.

The TLV7A03 features a smart enable circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is floating. This circuit also helps minimize the external components used to pull down the EN pin and the current drawn through the external pulldown circuit when the device is enabled. The Texas Instruments TLV7A03 is fully specified for operating junction temperature (TJ) of –40°C to +125°C.

Features

  • Ultra-low IQ of 250nA (typ.), 400nA (max.)
  • Shutdown IQ of 3nA (typ.)
  • Excellent transient response (1mA to 50mA)
    • < 10µs settling time
    • 80mV undershoot
  • Packages
    • 1.0mm × 1.0mm X2SON
    • 2.9mm x 2.8mm SOT-23-5
  • Input voltage range of 1.5V to 6.0V
  • Output voltage range of 0.8V to 5.0V (fixed)
  • Output accuracy of 1.5% over temperature
  • Smart enable pulldown
  • Very low dropout of 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

Typical Application Circuit

Application Circuit Diagram - Texas Instruments TLV7A03 Ultra-Low IQ LDO Linear Regulators

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: 2025-09-02 | Zaktualizowano: 2025-09-12