LP3986是TI公司的一款多通道LDO产品，LP3986是采用微型 SMD 封装的双路微功耗 150 mA 超低压降 CMOS 电压稳压器，本页介绍了LP3986的产品说明、应用、特性等，并给出了与LP3986相关的TI元器件型号供参考。
LP3986 - 采用微型 SMD 封装的双路微功耗 150 mA 超低压降 CMOS 电压稳压器 - 多通道LDO - 线性稳压器(LDO) - TI公司（Texas Instruments，德州仪器）
The LP3986 is a 150 mA dual low dropout regulator designed for portable and wireless applications with demanding performance and board space requirements.
The LP3986 is stable with a small 1 µF ±30% ceramic output capacitor requiring smallest possible board space.
The LP3986's performance is optimized for battery powered systems to deliver ultra low noise, extremely low dropout voltage and low quiescent current independent of load current. Regulator ground current increases very slightly in dropout, further prolonging the battery life. Optional external bypass capacitor reduces the output noise further without slowing down the load transient response. Fast start-up time is achieved by utilizing a speed-up circuit that actively pre-charges the bypass capacitor. Power supply rejection is better than 60 dB at low frequencies and 55 dB at 10 kHz. High power supply rejection is maintained at low input voltage levels common to battery operated circuits.
The LP3986 is available in a DSBGA package. Performance is specified for a −40°C to +125°C temperature range. For single LDO applications, please refer to the LP3985 datasheet.
- Miniature 8-I/O DSBGA Package
- Stable With 1µF Ceramic and High Quality Tantalum Output Capacitors
- Fast Turn-on
- Two Independent Regulators
- Logic Controlled Enable
- Over Current and Thermal Protection
