LD39200PUR集成电路（IC）的线性+开关稳压器规格书PDF中文资料

LD39200PUR属于集成电路（IC）的线性+开关稳压器。由意法半导体集团制造生产的LD39200PUR稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

特性 Features

• Input voltage from 1.25 V to 6.0 V

• Ultra low drop: 130 mV (typ.) at 2 A load

• 1 % output accuracy at 25 °C, 2 % in full temperature range

• High PSRR: 70 dB at 1 kHz

• Reverse current protection

• 2 A guaranteed output current

• Available in fixed and adjustable output voltage version from 0.5 V with 100 mV step

• Power Good

• Internal current and thermal limit

• Operating junction temperature range: -40 °C to 125 °C

• DFN6 (3 x 3 mm) and DFN8 (4 x 4 mm) packages

Applications

• Telecom infrastructure

• Medium power POL

描述 Description

The LD39200 provides 2 A of maximum current with an input voltage range from 1.25 V to 6.0 V, and a typical dropout voltage of 130 mV.

It is stable with ceramic capacitors on the output (10 μF).

Typical power supply rejection ratio is 70 dB at 1 kHz and starts to roll off at 20 kHz.

The enable logic control function puts the LD39200 in shutdown mode, reducing the total current consumption to 10 nA (typ.).

Power Good flag is available on a dedicated pin.

The device also includes reverse current protection, short-circuit constant current limit and thermal protection.

Typical applications are for Telecom infrastructure and consumer.