TPS71025 - 低压降 (LDO) 稳压器

TPS71025是TI德州仪器公司的一款单通道LDO产品，TPS71025是低压降 (LDO) 稳压器，本站介绍了TPS71025的封装应用图解、特点和优点、功能等，并给出了与TPS71025相关的TI元器件型号供参考。

TPS71025 - 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 TPS71025 low-dropout regulator offers an order of magnitude reduction in both dropout voltage and quiescent current over conventional LDO performance. The improvement results from replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 95mV at an output current of 100 mA) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 292 uA over the full range of output current, 0 mA to 500mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The TPS71025 also features a sleep mode; applying a TTL high signal to EN\ (enable\) shuts down the regulator, reducing the quiescent current to 0.5 uA maximum at TJ = 25°C.

The D package is availabe taped and reeled. Add R suffix to device type (e.g., TPS71025DR). The PW package is only available left-end taped and reeled and is indicated by the LE suffix on the device type.

Figure 1. Dropout Voltage Versus Output Current

产品特性

2.5-V Fixed-Output Regulator
V ery Low-Dropout (LDO) Voltage...57 mV Typical at IO = 100 mA
Very Low Quiescent Current, Independent of Load...292 uA Typ
Extremely Low Sleep-State Current, 0.5 uA Max
2% Tolerance Over Specified Conditions
Output Current Range...0 mA to 500 mA
Available in Space Saving 8-Pin SOIC and 20-Pin TSSOP Packages
0°C to 125°C Operating Junction Temperature Range

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