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LM2596 数据表(PDF) 2 Page - ON Semiconductor |
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LM2596 数据表(HTML) 2 Page - ON Semiconductor |
2 / 25 page LM2596 http://onsemi.com 2 Figure 1. Typical Application and Internal Block Diagram 12 V Unregulated DC Input L1 33 mH GND +Vin 1 Cin 100 mF 3ON/OFF 5 Output 2 Feedback 4 D1 1N5822 Cout 220 mF Typical Application (Adjustable Output Voltage Version) Block Diagram Unregulated DC Input +Vin 1 Cout Feedback 4 Cin L1 D1 R2 R1 Output 2 GND 3 ON/OFF 5 Reset Latch Thermal Shutdown 150 kHz Oscillator 1.235 V Band-Gap Reference Freq Shift 30 kHz Comparator Fixed Gain Error Amplifier Current Limit Driver 3.0 Amp Switch ON/OFF 3.1 V Internal Regulator Regulated Output Vout Load LM2596 5.0 V Regulated Output 3.0 A Load R1 R2 3.1k 1.0k CFF CFF MAXIMUM RATINGS Rating Symbol Value Unit Maximum Supply Voltage Vin 45 V ON/OFF Pin Input Voltage − −0.3 V ≤ V ≤ +Vin V Output Voltage to Ground (Steady−State) − −1.0 V Power Dissipation Case 314B and 314D (TO−220, 5−Lead) PD Internally Limited W Thermal Resistance, Junction−to−Ambient RqJA 65 °C/W Thermal Resistance, Junction−to−Case RqJC 5.0 °C/W Case 936A (D2PAK) PD Internally Limited W Thermal Resistance, Junction−to−Ambient RqJA 70 °C/W Thermal Resistance, Junction−to−Case RqJC 5.0 °C/W Storage Temperature Range Tstg −65 to +150 °C Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 kW) − 2.0 kV Lead Temperature (Soldering, 10 seconds) − 260 °C Maximum Junction Temperature TJ 150 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. |
类似零件编号 - LM2596_10 |
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类似说明 - LM2596_10 |
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