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Texas Instruments TPS7A20L Low-Noise Low-IQ Voltage Regulators

Texas Instruments TPS7A20L Low-Noise Low-IQ Voltage Regulators are ultra-small, low-dropout (LDO) linear regulators that can source 300mA of output current. The TPS7A20L is designed to provide high PSRR, low noise, and excellent load and line transient performance. These can meet the requirements of RF and other sensitive analog circuits. Using innovative design techniques, the TPS7A20L offers an ultra-low noise performance without adding a noise bypass capacitor. The TPS7A20L also provides the advantage of low quiescent current, which can benefit battery-powered applications. With an input voltage range of 1.6V to 6.0V and an output range of 0.8V to 5.5V, the TPS7A20L can be used for various applications. The device uses a precision reference circuit to provide a maximum accuracy of 1.5% over line, load, and temperature variations.

The Texas Instruments TPS7A20L features an internal soft-start to lower the inrush current. This feature minimizes the input voltage drop during start-up. The device is stable with small ceramic capacitors, which allows for a small overall solution size. The TPS7A20L has a smart enable input circuit with an internally controlled pulldown resistor. This feature keeps the LDO disabled even when the EN pin is left floating. It also helps eliminate the external components used to pulldown the EN pin. The enable input logic thresholds are compatible with the output levels of 1.2V logic devices.

Features

  • 7µVRMS low output voltage noise
    • No noise-bypass capacitor required
  • 95dB at 1kHz high PSRR
  • 6.5µA very low IQ
  • 1.6V to 6.0V input voltage range
  • 0.8V to 5.5V output voltage range
  • ±1.5% (max) output voltage tolerance
  • Very low dropout
    • 140mV (max) at 300mA (VOUT = 3.3V)
  • Low inrush current
  • Smart enable pulldown
  • Stable with 1µF minimum ceramic output capacitor
  • Enable input compatible with 1.2V logic
  • 1mm×1mm X2SON package

Applications

  • Smartphones and tablets
  • IP network cameras
  • Portable medical equipment
  • Smart meters and field transmitters
  • Motor drives
  • Wearables

Functional Block Diagram

Block Diagram - Texas Instruments TPS7A20L Low-Noise Low-IQ Voltage 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 MoreGiới thiệu về Texas Instruments MULTIPKGLDOEVM-823 LDO Regulator Evaluation Module View Productsliên quan đến Texas Instruments MULTIPKGLDOEVM-823 LDO Regulator Evaluation Module
Đã phát hành: 2024-04-22 | Đã cập nhật: 2024-05-29