Description

The LD56050 is a high accuracy voltage regulator, which provides 0.5 A of current. It

is equipped with an NMOS pass transistor, whose gate is biased by a dedicated pin,

thus allowing an ultra low-drop performance even at very low input voltages.

It is available in DFN4 1.2 x 1.2 package, allowing the maximum space saving.

The device is stabilized with a small ceramic capacitor on the output. The ultra lowdrop, low quiescent current and short circuit current foldback make the LD56050

suitable for low power battery-operated applications.

An enable logic control function puts the LD56050 in shutdown mode allowing a total

current consumption lower than 0.1 µA. Thermal protection is also included.

Features

• Input voltage from 0.8 to 5.5 V

• Bias supply pin

• Ultra low-dropout voltage (80 mV typ. at 500 mA load)

• Low ground current (27 μA typ. at no-load)

• Output voltage tolerance: ± 1.5 overtemperature, 0.5 at 25 °C

• 500 mA guaranteed output current

• 50 mV output voltage step available from 0.8 V to 3.6 V

• Logic-controlled electronic shutdown

• Internal current limit with foldback

• Thermal shutdown

• Output active discharge function

• Available in DFN4 1.2 x 1.2 mm package

• Temperature range: -40 °C to 85 °C

Applications

• Mobile phones

• Tablets

• Battery-powered systems

• Camera supply

LD56050DPU115R属于集成电路（IC） > 线性 + 开关稳压器。意法半导体（ST）集团制造生产的LD56050DPU115R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。