TD1507 Techcode, TD1507 Datasheet

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... PWM Buck DC/DC Converter General Description The TD1507 is a easy to use adjustable step-down (buck) switch-mode voltage regulators. The device is available in an adjustable output version capable of driving a 2.5A load with excellent line and load regulation. Requiring a minimum components, the regulator is simple to use and include internal frequency compensation, and a fixed-frequency oscillator ...

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... Pin Descriptions Name Vin 5 ON/OFF Output 4 Feedback 3 Gnd Gnd 2 Output 1 Vin Feedback ON/OFF X TD1507 X 2 Datasheet TD1507 Description Input supply voltage Switching output Ground Output voltage feedback ON/OFF shutdown Active is “Low” or floating Packing Blank: Tube R: Tape and Reel Techcode Semiconductor Limited ...

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... PWM Buck DC/DC Converter Functional Block Diagram Figure 2. Functional Block Diagram of TD1507 Typical Application October, 20, 2005. Figure 3. Typical Application of TD1507 3 Datasheet TD1507 Techcode Semiconductor Limited ...

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... FB ON/OFF=5V, V =36V IN 127 I =2A OUT Peak Current (V =0V) FB Output=0V (V =12V) FB Output=-1V (V =36V) IN Low (Regulator ON) High (Regulator OFF) 2.0 V =2.5V(Regulator OFF) LOGIC 4 Datasheet TD1507 Unit ºC ºC ºC V Min. Typ. Max. Unit 10 50/100 150 uA 150 ...

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... C. J Note1: Thermal resistance with copper area of approximately 3 in October, 20, 2005. V =0.5V(Regulator ON) LOGIC TO252-5L TO252-5L ≤36V, 0.2A≤I ≤ 11V≤V IN LOAD 1.193/ 3A, V for 9V 1.180 OUT V =12V,V =9V,I =3A IN OUT LOAD Datasheet TD1507 0. C C/W 1.267/ 1.23 V 1.280 88 % Techcode Semiconductor Limited ...

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... PWM Buck DC/DC Converter Typical Performance Characteristics Figure 4. Output Voltage vs. Temperature Figure 6. Output Saturation Characteristics October, 20, 2005. Figure 5. Switching Frequency vs. Temperature Figure 7. Quiescent Current vs. Temperature Techcode Semiconductor Limited 6 Datasheet TD1507 ...

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... PWM Buck DC/DC Converter Figure 8. ON/OFF Pin Voltage Figure 10. Output Saturation Characteristics October, 20, 2005. Figure 9. ON/OFF Pin Sink Current Techcode Semiconductor Limited 7 Datasheet TD1507 ...

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... PWM Buck DC/DC Converter Typical Application Circuit Figure 11. Typical Application of TD1507 Vout 3. 12V Table 1. Vout VS. R1, R2, Cf Select Table Output Voltage Voltage 3. 18V 6V ~36V 18V 8V ~36V 9V 12V ~18V 12V ~36V 12V 15V ~ 18V 15V ~36V Table 2. Typical Application Buck Regulator Design Procedure October, 20, 2005 ...

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... ON condition. Thermal Considerations The TD1507 is available in TO252-5L package. The TO252 package needs a heat sink under most conditions. The size of the heatsink depends on the input voltage, the output voltage, the load current and the ambient temperature ...

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... PWM Buck DC/DC Converter Package Information October, 20, 2005. Techcode Semiconductor Limited 10 Datasheet TD1507 ...

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... PWM Buck DC/DC Converter October, 20, 2005. Design Notes 11 Datasheet TD1507 Techcode Semiconductor Limited ...