TPS727xx参考设计电路|低压差线性稳压器应用电路

TPS727xx超低Iq低压差线性稳压器是超低静态电流LDO，具有出色的线性和超快负载瞬态性能，被设计用于对功耗敏感的应用。此篇主要介绍了TPS727xx特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。

TPS727xx特性：在负载/线路/温度范围上2%的输出精度；超低IQ:7.9μA；高PSRR:1kHz时70dB；匹配1.0μF陶瓷输出电容时稳定工作

TPS727xx典型应用范围：无线电话、智能手机、PDA；MP3播放器和其他手持式产品；无线LAN、蓝牙®,Zigbee®；遥控装置；便携消费电子产品

TPS727xx参考设计应用电路：

图1TPS727xx内部结构图

The TPS727xx devices belong to a family of LDO regulators that consume extremely low quiescent current while simultaneously delivering excellent PSRR with very little headroom (VIN – VOUT differential voltage), and very good transient response. These features, combined with low noise without a noise reduction pin in an ultrasmall package, make these devices ideal for portable applications.

图2TPS727xx参考设计图

The TPS727xx family of low-dropout (LDO) linear regulators are ultralow quiescent current LDOs with excellent line and ultra-fast load transient performance and are designed for power-sensitive applications.

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