TI TPS7H1101－SP 1.5V至7V超低压降稳压器电源参考设计方案

TI公司的TPS7H1101-SP是一款采用PMOS工艺元件配置的超低压降线性稳压电源器件。该器件具有较宽的电压输入范围（1.5V至7V），同时提供优质的电源电压抑制比（PSRR）。该芯片最主要的特性是通过可编程反馈电流限制使芯片具有较宽的输出调节范围，同时提供很高的精确输出。该芯片主要用于为FPGA、DSP、MCU等具有复杂电源要求的芯片提供电能。本文首先介绍芯片的简介、特性、内部框图及应用领域，并给出相应设计方案的设计原理图、元器件列表及PCB元件布局图。

The TPS7H1x01 is a low dropout (LDO) linear regulator that uses a PMOS pass element configuration. It operates under wide range of input voltage, from 1.5 V to 7V while offering excellent PSRR. The TPS7H1x01 features a precise and programmable fold back current limit implementation with a very wide adjustment range. To support complex power requirements of FPGAs, DSPs, or Microcontrollers the TPS7H1x01 provides enable on/off functionality, programmable SoftStart, current sharing capability, and a PowerGood open drain output. The TPS7H1x01 is available in a thermally enhanced16-pin ceramic flatpack package (CFP) .

TPS7H1101-SP主要特性：

Current Share/Parallel Operation to Provide Higher 
Output Current
Wide VIN Range: 1.5 V – 7 V
TPS7H1101-SP:
Total Dose (TID) Tolerance > 100kRAD(Si)
Single Event Latchup (SEL) Immune to 
LET = 85MeV-cm2/mg
SEB and SERG Immune to 
LET = 85MeV-cm2/mg..

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