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MC34063A Datasheet(PDF) 16 Page - Texas Instruments |
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MC34063A Datasheet(HTML) 16 Page - Texas Instruments |
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R2 1.25 1 R1 æ ö + ç ÷ è ø ( ) ( ) ( ) pk on off switch ripple pp I t t 8V + ( ) ( ) ( ) ( ) sat out in min on max pk switch V V V t I æ ö - - ç ÷ ç ÷ ç ÷ è ø ( ) pk switch 0.3 I ( ) out max 2I 5 on 4 10 t - ´ ( ) on off off t t t + - on off on off t t t 1 t + + 1 f ( ) out F sat out in min V V V V V + - - MC33063A, MC34063A SLLS636N – DECEMBER 2004 – REVISED JANUARY 2015 www.ti.com 9.2.3.2 Detailed Design Procedure CALCULATION STEP DOWN ton/toff (ton + toff) toff ton CT Ipk(switch) RSC L(min) CO Vout See Figure 11 9.2.3.3 Application Performance TEST CONDITIONS RESULTS Line regulation VIN = 15 V to 25 V, IO = 500 mA 12 mV ± 0.12% Load regulation VIN = 25 V, IO = 50 mA to 500 mA 3 mV ± 0.03% Output ripple VIN = 25 V, IO = 500 mA 120 mVPP Short-circuit current VIN = 25 V, RL = 0.1 Ω 1.1 A Efficiency VIN = 25 V, IO = 500 mA 83.7% Output ripple with optional filter VIN = 25 V, IO = 500 mA 40 mVPP 16 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: MC33063A MC34063A |
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