| FLYiNG 零件編號 | PILM2576HVR12 |
| FLYiNG 散料庫存 | 6 |
| FLYiNG 標準包裝庫存 | 電洽/Contact |
| 製造商 | TAEJIN Technology |
| 製造商零件編號 | LM2576HVR-12 |
| 說明 | LM2576HVR-12 TO-263 5L HTC |
| 無鉛狀態 / RoHS 指令狀態 | RoHS |
| 散裝數量 | NTD 單價 / PCS |
| 1~9 | 234 |
| 10~99 | 176 |
| 100~799 | 117 |
| 800~ | 59 |
| 封裝／外殼 | TO-263 5L |
| 標準包裝數量 | 800/REEL 捲軸 |
文件:LM2576.png)
LM2576
3A, 52kHz, Step-Down Switching Regulator
FEATURES
LM2576
3A, 52kHz, Step-Down Switching Regulator
FEATURES
- 3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions
- Adjustable Version Output Voltage Range, 1.23V to 37V ±4% maximum over line and load conditions
- Guaranteed 3.0A Output Current
- Wide Input Voltage Range: Up to 40V
- 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 type packages
- Simple High-Efficiency Step-Down (Buck) Regulator
- Efficient Pre-Regulator for Linear Regulators
- On-Card Switching Regulators
- Positive to Negative Converter (Buck-Boost)
- Negative Boost Converters
- Power Supply for Battery Chargers
The LM2576 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 3.0A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V, 12V, 15V, 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 LM2576 are offered by several different inductor manufacturers.
The LM2576 features include a ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
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 LM2576 are offered by several different inductor manufacturers.
The LM2576 features include a ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
LM2576
3A、52kHz 降壓型切換式穩壓器
產品特性
- 提供 3.3V、5.0V、12V、15V 與可調式輸出版本
- 可調式版本輸出電壓範圍：1.23V 至 37V，線路與負載變化下最大誤差為 ±4%
- 保證輸出電流達 3.0A
- 寬輸入電壓範圍：最高可達 40V
- 僅需 4 顆外部元件
- 內建固定頻率 52kHz 振盪器
- 支援 TTL 關閉功能，具低功耗待機模式
- 高效率
- 可搭配市面上常見標準電感使用
- 具過熱與電流限制保護功能
- SMD 封裝具濕氣敏感等級 MSL 3
應用範圍
- 簡易高效率降壓型穩壓器
- 線性穩壓器之前級高效率電源
- 板上切換式穩壓電源
- 正轉負轉換器（降壓升壓型）
- 負電壓升壓型轉換器
- 電池充電器用電源
產品說明
LM2576 系列為單晶積體式穩壓器，特別設計用於簡易便利的降壓型（Buck）切換式穩壓器設計。此系列所有型號均可提供 3.0A 輸出電流，並具備優異的線路與負載調節性能。除固定輸出版本外，也提供可調式輸出型號（1.23V ~ 37V）。
為簡化電源設計，LM2576 僅需少數幾顆外部元件，並可搭配多家電感廠商所提供的標準系列電感。其特性包含輸出電壓容差 ±4%、振盪頻率容差 ±10%，另具外部關機控制，待機電流僅約 50μA（典型值）。此外，內建的開關還具備逐週期限流及熱關斷保護功能，能有效保障裝置於異常狀況下的安全。
