封裝／外殼	TO-263 5L
標準包裝數量	800/REEL 捲軸

3A, 52kHz, Step-Down Switching Regulator  LM2576

FEATURES
3.3V, 5.0V, 12V and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.23 to 37V
+/- 4% AG10Maximum Over Line and Load Conditions
Guaranteed 3.0A Output Current
Wide Input Voltage Range
Requires Only 4 External Components
52kHz 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 3 for SMD packages

APPLICATION
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
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3A，52kHz，降壓型開關穩壓器LM2576

特徵
3.3V，5.0V，12V和可調輸出版本
輸出電壓範圍可調，1.23〜37V
+/- 4％AG10最大線路和負載條件
保證3.0A輸出電流
寬輸入電壓範圍
只需要4個外部組件
52kHz固定頻率內部振盪器
TTL關機功能，低功耗待機模式
高效率
使用易於使用的標準電感器
熱關斷和電流限制保護
水分靈敏度3級SMD封裝

應用
簡單的高效降壓（降壓）穩壓器
線性穩壓器的高效預調節器
片上開關穩壓器
正負轉換器（降壓 - 升壓）
負升壓轉換器
電池充電器電源

Ordering Information

VOUT	Package	Order No.	Description	Package Marking	Status
ADJ	SOP8-PP	LM2576DP-ADJ	3A, Adjustable, 52kHz, On/off	LM2576-ADJ	Contact Us
	TO220-5L	LM2576T-ADJ	3A, Adjustable, 52kHz, On/off	LM2576-ADJ	Active
	TO263-5L	LM2576R-ADJ	3A, Adjustable, 52kHz, On/off	LM2576-ADJ	Active
3.3V	SOP8-PP	LM2576DP-3.3	3A, Fixed, 52kHz, On/off	LM2576-3.3	Contact Us
	TO220-5L	LM2576T-3.3	3A, Fixed, 52kHz, On/off	LM2576-3.3	Active
	TO263-5L	LM2576R-3.3	3A, Fixed, 52kHz, On/off	LM2576-3.3	Active
5.0V	SOP8-PP	LM2576DP-5.0	3A, Fixed, 52kHz, On/off	LM2576-5.0	Contact Us
	TO220-5L	LM2576T-5.0	3A, Fixed, 52kHz, On/off	LM2576-5.0	Active
	TO263-5L	LM2576R-5.0	3A, Fixed, 52kHz, On/off	LM2576-5.0	Active
12V	SOP8-PP	LM2576DP-12	3A, Fixed, 52kHz, On/off	LM2576-12	Contact Us
	TO220-5L	LM2576T-12	3A, Fixed, 52kHz, On/off	LM2576-12	Active
	TO263-5L	LM2576R-12	3A, Fixed, 52kHz, On/off	LM2576-12	Active