MIC2570中文资料Two Cell Boost Regulator数据手册Microchip规格书

描述 Description

MIC2570 is a micropower boost switching regulator that operates from two alkaline, two nickel-metal-hydride cells, or one lithium cell.The MIC2570 accepts a positive input voltage between 1.3V and 15V. Its typical no-load supply current is 130µA.The MIC2570 is available in selectable fixed output or adjustable output versions. The MIC2570-1 can be configured for 2.85V, 3.3V, or 5V by connecting one of three separate feedback pins to the output. The MIC2570-2 can be configured for an output voltage ranging between its input voltage and 36V, using an external resistor network.The MIC2570 has a fixed switching frequency of 20kHz. An external SYNC connection allows the switching frequency to be synchronized to an external signal.The MIC2570 requires only four components (diode, inductor, input capacitor and output capacitor) to implement a boost regulator. A complete regulator can be constructed in a 0.6 in² area.All versions are available in an 8-lead SOIC with an operating range from -40°C to +85°C.

特性 Features

• Operates from a two-cell supply
•1.3V to 15V operation
• 130µA typical quiescent current
• Complete regulator fits 0.6 in² area
• 2.85V/3.3V/5V selectable output voltage (MIC2570-1)
• Adjustable output up to 36V (MIC2570-2)
• 1A current limited pass element
• Frequency synchronization input
• 8-lead SOIC package

简介

MIC2570属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MIC2570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。