R5326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 R5326 Series are CMOS-based auto mode switching dual LDO regulators featuring 150mA output. In auto switching mode, the operation can switch automatically to a fast response mode or a low power mode of the ECO function according to output current. (Automatic switching to fast response mode under IOUT > 3mA conditions or to low power mode under IOUT In low power mode, supply current is as low as 5.5µA. In fast response mode, ripple rejection is 70dB and noise is low. R5326 requires neither ECO pin for switching mode nor microcontroller pin. R5326 supports low voltage, featuring input voltage from 1.4V and output voltage from 0.8V. Standby mode and auto-discharge function are also available.

特性 Features

• Input Voltage Range (Absolute maximum rating)：1.4 V to 6.0 V (6.5 V)；
• Supply Current (Low Power Mode)：Typ. 5.5 µA×2 (VR1&VR2) (IOUT=0mA)；
• Supply Current (Fast Mode)：Typ. 50 µA×2 (VR1&VR2) (IOUT=10mA)；
• Standby Current：Typ. 0.1 µA (VR1&VR2)；
• Dropout Voltage：Typ. 0.19 V (IOUT=150mA, VOUT=2.8V)；
• Ripple Rejection：Typ. 70 dB (f=1kHz),Typ. 60 dB (f=10kHz)；
• Output Voltage Range：0.8 V to 4.2 V (0.1 V steps)；
• Output Voltage Accuracy：±1.0% (VOUT>1.5V)；
• Temperature-Drift Coefficient of Output Voltage：Typ. ±100 ppm/°C；
• Line Regulation：Typ. 0.02%/V；
• Built-in fold-back protection circuit：Typ. 50 mA (Current at short mode)；
• Package：DFN(PLP)1820-6；
• Ceramic Capacitor is recommended：1.0 µF to 3.3 µF；

应用 Application

• Power source for handheld communication equipment
• Power source for electrical appliances such as cameras, VCRs and camcorders
• Power source for battery-powered equipment

简介

R5326属于集成电路（IC）的线性+开关稳压器。由制造生产的R5326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。