MC78PC25数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The MC78PC00 are a series of CMOS LDO linear voltage regulators with high output voltage accuracy, low supply current, low dropout voltage, and high Ripple Rejection. Each of these linear voltage regulators consists of an internal voltage reference, an error amplifier, resistors, a current limiting circuit and achip enable circuit. The dynamic Response to line and load is fast, which makes these products ideally suited for use in hand-held communication equipment. The MC78PC00 series of Low Dropout Linear Voltage Regulators are housed in the SOT-23 5 lead package, for maximum board space saving.

特性 Features

Ultra-Low Supply Current: typical 35 mA in ON mode with no load.
Standby Mode: typical 0.1 mA.
Low Dropout Voltage: typical 0.2 V @ IOUT = 100 mA.
High Ripple Rejection: typical 70 dB @ f = 1 kHz.
Low Temperature-Drift Coefficient of Output Voltage: typical +/- 100 ppm/°C.
Excellent Line Regulation: typical 0.05%/V.
High Accuracy Output Voltage: +/-2.0%.
Fast Dynamic Response to Line and Load.
Small Package: SOT-23 5 leads.
Built-in Chip Enable circuit (CE input pin).
Similar Pinout to the LP2980/1/2 and MIC5205.
Pb-Free Package May be Available. The G-Suffix Denotes a Pb-Free Lead Finish

应用 Application

Power source for cellular phones (GSM, CDMA, TDMA), CordlessPhones (PHS, DECT) and 2-way radios.Power source for domestic appliances such as cameras, VCRs andcamcorders.Power source for battery-powered equipment.

简介

MC78PC25属于集成电路（IC）的线性+开关稳压器。由制造生产的MC78PC25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。