LM2575集成電路（IC）的DCDC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

LM2575屬于集成電路（IC）的DCDC開關(guān)穩(wěn)壓器。由安森美半導(dǎo)體公司制造生產(chǎn)的LM2575穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會通過該元件。

1.0 A, Adjustable Output Voltage, Step?Down Switching Regulator

The LM2575 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step?down switching regulator (buck converter). All circuits of this series are capable of driving a 1.0 A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version.

Features

? 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions

? Adjustable Version Output Voltage Range of 1.23 V to 37 V ±4 Maximum Over Line and Load Conditions

? Guaranteed 1.0 A Output Current

? Wide Input Voltage Range: 4.75 V to 40 V

? Requires Only 4 External Components

? 52 kHz Fixed Frequency Internal Oscillator

? TTL Shutdown Capability, Low Power Standby Mode

? High Efficiency

? Uses Readily Available Standard Inductors

? Thermal Shutdown and Current Limit Protection

? Moisture Sensitivity Level (MSL) Equals 1

? Pb?Free Packages are Available*

Applications

? Simple and High?Efficiency Step?Down (Buck) Regulators

? Efficient Pre?Regulator for Linear Regulators

? On?Card Switching Regulators

? Positive to Negative Converters (Buck?Boost)

? Negative Step?Up Converters

? Power Supply for Battery Chargers