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REG113 - 产品图解:
REG113-400mA、低噪声、低压降稳压器
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TI产品 - REG113介绍
REG113 - 400mA、低噪声、低压降稳压器

REG113是TI公司的一款单通道LDO产品,REG113是400mA、低噪声、低压降稳压器,本页介绍了REG113的产品说明、应用、特性等,并给出了与REG113相关的TI元器件型号供参考。

REG113 - 400mA、低噪声、低压降稳压器 - 单通道LDO - 线性稳压器(LDO) - TI公司(Texas Instruments,德州仪器)

产品描述

The REG113 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 250mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.

Typical ground pin current is only 850µA (at IOUT = 400mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG113 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).

The REG113 is well protected—internal circuitry provides a current limit which protects the load from damage; futhermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG113 is available in the SOT23-5 and MSOP-8 packages.

产品特性

  • CAP-FREE DMOS TOPOLOGY:
    • Ultra Low Dropout Voltage: 250mV typ at 400mA Output capacitor not required for stability
  • UP TO 500mA PEAK, TYPICAL
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY: IGND = 850 µA at IOUT = 400mA Not Enabled: IGND = 0.01 µA
  • 2.5V, 2.85V, 3.0V, 3.3V, AND 5.0V OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
      SOT23-5 and MSOP-8
  • APPLICATIONS
    • PORTABLE COMMUNICATION DEVICES
    • BATTERY-POWERED EQUIPMENT
    • PERSONAL DIGITAL ASSISTANTS
    • MODEMS
    • BAR-CODE SCANNERS
    • BACKUP POWER SUPPLIES

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