REG101 - 单路输出 LDO、100mA、可调节电压/固定电压（2.5 至 5.5V）、低噪声、快速瞬态响应

REG101是TI德州仪器公司的一款单通道LDO产品，REG101是单路输出 LDO、100mA、可调节电压/固定电压（2.5 至 5.5V）、低噪声、快速瞬态响应，本站介绍了REG101的封装应用图解、特点和优点、功能等，并给出了与REG101相关的TI元器件型号供参考。

REG101 - 单路输出 LDO、100mA、可调节电压/固定电压（2.5 至 5.5V）、低噪声、快速瞬态响应 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The REG101 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 60mV 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 500µA (at IOUT = 100mA) and drops to 10nA when not in enabled mode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variation and under dropout conditions.

The REG101 has very low output noise (typically 23µVrms 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 guaranteed over the specified temperature range (-40°C to +85°C).

The REG101 is well protected—internal circuitry provides a current limit which protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG101 is available in the SOT23-5 and the SO-8 packages.

产品特性

NEW DMOS TOPOLOGY:
- Ultra Low Dropout Voltage:
  - 60mV typ at 100mA
  - Output capacitor NOT required for stability
FAST TRANSIENT RESPONSE
VERY LOW NOISE: 23 µVrms
HIGH ACCURACY: ±1.5% max
HIGH EFFICIENCY:
- IGND = 500 µA at IOUT = 100mA
- Not Enabled: IGND = 10nA
2.5V,2.8V,2.85V,3.0V,3.3V,5.0V,AND ADJUSTABLE OUTPUT VERSIONS
OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
FOLDBACK CURRENT LIMIT
THERMAL PROTECTION
SMALL SURFACE-MOUNT PACKAGES:
- SOT23-5 and SO-8
APPLICATIONS
- PORTABLE COMMUNICATION DEVICES
- BATTERY-POWERED EQUIPMENT
- PERSONAL DIGITAL ASSISTANTS
- MODEMS
- BAR-CODE SCANNERS
- BACKUP POWER SUPPLIES

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