RP500数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The RP500 Series are low supply current CMOS-based PWM/VFM step-down DC/DC converters with synchronous rectifier. RP500 can be selected from two control types - fixed PWM control or PWM/VFM auto switching control in which mode automatically switches to high-efficiency VFM mode in low output current. RP500 includes a soft start circuit, an under-voltage lockout circuit (UVLO), and a latch protection circuit. By simply using an inductor and capacitors as external components, a high-efficiency step-down DC/DC converter can be easily configured.

特性 Features

• Input Voltage Range (Maximum Rating)：2.55 V to 5.5 V (6.5V)；
• Supply Current：Typ. 400 µA (at PWM mode),Typ. 100 µA (at VFM mode)；
• Standby Current：Typ. 0 µA；
• Output Voltage Range：1.1 V to 3.3 V (0.1V steps)；
• Output Voltage Accuracy：±1.5% (VOUT≥1.6V), ±24 mV (VOUT<1.6V)；
• Temperature-Drift Coefficient of Output Voltage：±100 ppm/°C；
• Oscillator Frequency：Typ. 1.2 MHz；
• Oscillator Maximum Duty Cycle：Min. 100%；
• Built-in Driver ON Resistance：Typ. Pch. 0.3Ω, Nch. 0.38Ω (VIN=3.6V)；
• UVLO Detector Threshold：Typ. 2.2 V；
• Soft Start Time：Typ. 120 µs；
• Lx Current Limit：Typ. 900 mA；
• Latch type Protection Circuit：Typ. 1.5 ms；
• Two choices of Switching Mode：Automatic PWM/VFM mode change / PWM fixed；
• Packages：DFN1616-6, DFN(PLP)1820-6, SOT-23-6W；

应用 Application

• Power source for battery-powered equipment
• Power source for hand-held communication equipment, cameras, VCRs, camcorders
• Power source for HDD, portable equipment

简介

RP500属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的RP500稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。