LM2594PADJG集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

LM2594PADJG屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由安森美半導(dǎo)體公司制造生產(chǎn)的LM2594PADJG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。

The LM2594 regulator is monolithic integrated circuit ideally suited for easy and convenient design of a step?down switching regulator (buck converter). It is capable of driving a 0.5 A load with excellent line and load regulation. This device is available in adjustable output version. It is internally compensated to minimize the number of external components to simplify the power supply design.

Since LM2594 converter is a switch?mode power supply, its efficiency is significantly higher in comparison with popular three?terminal linear regulators, especially with higher input voltages. The LM2594 operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 8?Lead PDIP and 8?Lead Surface Mount packages.

The other features include a guaranteed 4 tolerance on output voltage within specified input voltages and output load conditions, and 15 on the oscillator frequency. External shutdown is included, featuring 50 A (typical) standby current. Self protection features include switch cycle?by?cycle current limit for the output switch, as well as thermal shutdown for complete protection under fault conditions.

Features

? Adjustable Output Voltage Range 1.23 V ? 37 V

? Guaranteed 0.5 A Output Load Current

? Wide Input Voltage Range up to 40 V

? 150 kHz Fixed Frequency Internal Oscillator

? TTL Shutdown Capability

? Low Power Standby Mode, typ 50 A

? Thermal Shutdown and Current Limit Protection

? Internal Loop Compensation

? Moisture Sensitivity Level (MSL) Equals 1

? These are Pb?Free Devices

Applications

? Simple High?Efficiency Step?Down (Buck) Regulator

? Efficient Pre?Regulator for Linear Regulators

? On?Card Switching Regulators

? Positive to Negative Converter (Buck?Boost)

? Negative Step?Up Converters

? Power Supply for Battery Chargers