LF33CPT-TR

LDO（低压降）线性电压调节器，STMicroelectronics，250mA 至 500mA### LDO（低压降）线性电压调节器，STMicroelectronics低压降或 LDO 为线性电压稳压器。 我们有多种系列的线性稳压器。 LDO 稳压器可在输入 - 输出差分电压较小时运行。 LDO 电压稳压器可提供快速瞬态响应、宽输入电压范围、低静态电流、低噪声、高 PSRR。

Description

The LFxxAB/LFxxC are very Low Drop regulators available in PENTAWATT, TO-220, TO-220FP, DPAK and PPAK package and in a wide range of output voltages.

The very low drop voltage 0.45 V and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems. In the 5 pins configuration PENTAWATT and PPAK a Shutdown Logic Control function is available pin 2, TTL compatible. This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. In the three terminal configuration the device has the same electrical performance, but is fixed in the ON state.

Features

■ Very low dropout voltage 0.45V

■ Very low quiescent current typ. 50 µA in OFF mode, 500 µA in ON mode

■ Output current up to 500 mA

■ Logic-controlled electronic shutdown

■ Output voltages of 1.5; 1.8; 2.5; 3.3; 4.7; 5; 6; 8; 8.5; 9; 12V

■ Automotive Grade product: 1.8V, 2.5V, 3.3V, 5.0V, 8.0V, 8.5V VOUT in DPAK and PPAK packages

■ Internal current and thermal limit

■ Only 2.2 µF for stability

■ Available in ± 1% AB or ± 2% C selection at 25°C

■ Supply voltage rejection: 80db typ.

■ Temperature range: -40 to 125 °C