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SI-8050TFE Dataheets PDF



Part Number SI-8050TFE
Manufacturers Sanken
Logo Sanken
Description DC-to-DC Step-Down Converter
Datasheet SI-8050TFE DatasheetSI-8050TFE Datasheet (PDF)

SI-8050TFE DC-to-DC Step-Down Converter Features and Benefits 1.5 A output current supplied in a small, through-hole mount power package High efficiency: 81% at VIN= 15 V, IO= 0.5 A,VO= 5 V Requires only four external components (optional soft start requires an additional capacitor) Oscillation circuit built-in (frequency 300 kHz typical) Constant-current mode overcurrent protection circuit and overtemperature protection circuit built-in Soft start function built-in (can be implemented as an on.

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SI-8050TFE DC-to-DC Step-Down Converter Features and Benefits 1.5 A output current supplied in a small, through-hole mount power package High efficiency: 81% at VIN= 15 V, IO= 0.5 A,VO= 5 V Requires only four external components (optional soft start requires an additional capacitor) Oscillation circuit built-in (frequency 300 kHz typical) Constant-current mode overcurrent protection circuit and overtemperature protection circuit built-in Soft start function built-in (can be implemented as an on/off function; output-off state at low level) Low current consumption during output-off state Package: TO220F-5 Description The SI-8050TFE DC voltage regulator is a DC-to-DC buck convertor that attains an oscillation frequency of 300 kHz, and has an integrated miniaturized choke coil, allowing it to serve as a small, high efficiency power supply in a compact TO220F package. The internal switching regulator function provides high efficiency switching regulation without any need for adjustment. The device requires only six external support components. The optional soft start function requires an additional capacitor. Optional on/off control can be performed using a transistor. The SI-8050TFE includes overcurrent and overtemperature protection circuits. Applications include: DVD recorder FPD TV Telecommunications equipment Office automation equipment, such as printers On-board local power supply Output voltage regulator for second stage of SMPS (switched mode power supply) Not to scale Functional Block Diagram VIN 1 IN C1 PReg Overcurrent Protection SW 2 L1 Di RK16 (Sanken) 5 SS On/Off Soft Start C3 Reset Osc Comparator Error Amplifier Latch and Driver VOS 4 Overtemperature Protection GND 3 Reference Voltage 27469.063 SANKEN ELECTRIC CO., LTD. http://www.sanken-ele.co.jp/en/ VOUT C2 SI-8050TFE Selection Guide Part Number SI-8050TFE Efficiency, Typ. (%) 81 DC-to-DC Step-Down Converter Input Voltage, Max. (V) 40 Output Current, Max. (A) 1.5 Packing 50 pieces per tube Absolute Maximum Ratings Characteristic DC Input Voltage Power Dissipation Junction Temperature Storage Temperature Thermal Resistance (junction-to-case) Thermal Resistance (junction-to-ambient air) Symbol VIN PD1-1 PD1-2 PD2-1 PD2-2 TJ Tstg RJC RJA Remarks Connected to infinite heatsink; TJ(max) = 150°C, limited by internal overtemperature protection. Connected to infinite heatsink; TJ = 125°C. No heatsink; TJ(max) = 150°C, limited by internal overtemperature protection. No heatsink; TJ = 125°C. Internal overtemperature protection circuit may enable when TJ ≥ 130°C. During product operation, recommended TJ ≤ 125°C. Rating 43 Units V 17.8 W 14.2 W 2.15 W 1.72 W –30 to 150 °C –40 to 150 7 58 °C °C/W °C/W Recommended Operating Conditions* Characteristic Symbol Remarks DC Input Voltage Range VIN VIN (min) is the greater of 4.5 V or VO+3 V. DC Output Voltage Range DC Output Current Range VO VIN ≥ VO + 3 V; to be used within the allowable package IO power dis.


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