SN105125 - 具有 POK 的单路输出 150mA 1.2V 低压降 (LDO) 稳压器

SN105125是TI德州仪器公司的一款单通道LDO产品，SN105125是具有 POK 的单路输出 150mA 1.2V 低压降 (LDO) 稳压器，本站介绍了SN105125的封装应用图解、特点和优点、功能等，并给出了与SN105125相关的TI元器件型号供参考。

SN105125 - 具有 POK 的单路输出 150mA 1.2V 低压降 (LDO) 稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The SN105125 is a low dropout voltage regulator with an output tolerance of ±2% over the operating range. The device is optimized for low noise applications and has a low quiescent current (enable <0.8 V). The device has a low dropout voltage at full load (150 mA). The power okay function monitors the output voltage and indicates when an error occurs in the system (active low). In the event of an output fault such as overcurrent, thermal shutdown, or dropout, the power okay output is pulled low (open drain).

The SN105125 has a fast transient response recovery capability in the event of load transition from heavy load to light load. The device also minimizes overshoot during this condition. During power down, the output capacitor and load are de-energized through the internal active shutdown clamp, which is turned on when the device is disabled.

The SN105125 requires a small output capacitor for stability with low ESR. An input capacitor is not required unless the bulk ac capacitor is placed away from the device or the power supply is a battery. In this situation, a 1-uF capacitor is recommended for the application. Low ESR ceramic capacitors may be used with the device to reduce board space in power applications, a key concern in hand-held wireless devices.

产品特性

Low Dropout Voltage Regulator, 1.2-V
150-mA Load Current Capability
Power Okay (POK) Function
Load Independent, Low Ground Current,150-uA
Current Limiting
Thermal Shutdown
Low Sleep State Current (Off Mode)
Fast Transient Response
Low Variation Due to Load and Line Regulation
Output Stable With Low ESR Capacitors
TTL Logic Controlled Enable Input
applications
- Processor Powerup Sequencing
- Palmtop Computers, Laptops, and Notebooks

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