JM2576T-5.0 OWIES-TECH TO220 DC/DC电源管理芯片 可替代LM2576T-5.0

3.0 A, 15 V, Step-Down Switching Regulator

 

 

The JM2576 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 3.0 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.

 

These regulators were designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the JM2576 are offered by several different inductor manufacturers. Since the JM2576 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.  In  many  cases,  the
power	dissipated  is	so	low  that no	heatsink   is   required
or  its	size  could	be	reduced dramatically.
A standard series of inductors optimized for use with the
JM2576 are available  from  several				different  manufacturers.

 

This feature greatly simplifies the design of switch–mode power supplies. The JM2576 features include a guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency (±2% over 0°C to 125°C). External shutdown is included, featuring 80 ㎂ (typical) standby current. The output switch includes cycle–by–cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

 

 

 

JM2576-xx

 

 

 

 

 

 

 

 

TO-220-5L

 

JM2576T

 

 

 

 

 

 

 

 

TO-263-5L

 

JM2576S

 

 

 

 

 

 

Pin connections

 

1. Vin

2. Output

3. Ground

4. Feedback

5. ON/OFF

 

 

Features		ORDERING INFORMATION
·  3.3 V, 5.0 V, 12 V, 15 V, and Adjustable	Device	Operating	Package	Packing
Output Versions		Temperature Range
·  Adjustable Version Output Voltage Range,	JM2576S-xx	TA = -40° to 125° C	TO-263	Tape & Reel
1.23 to 37 V ±4%
·  Maximum Over Line and Load Conditions	JM2576T-xx	for  all packages	TO-220	Tube

 

· Guaranteed 3.0 A Output Current

 

· Wide Input Voltage Range

 

· 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

 

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

图片不供参考  可提供规格书

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Leven Cai 蔡明柱

深圳市奥伟斯科技有限公司

OWEIS ELECTRONICS Co., LIMITED.

址址:深圳市福田区深南中路3006号佳和华强大厦A座7楼701-703室

ADD:Rm701-703, Block A, Jiahe huaqiang Bldg., Shennan zhong Rd., Futian District, Shenzhen, Guangdong, China  518000

E-Mail : leven@oweis-tech.com  

www.oweis-tech.com

www.oweis-tech.cn

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