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MC33063AP Datasheet(PDF) 8 Page - Texas Instruments |
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MC33063AP Datasheet(HTML) 8 Page - Texas Instruments |
8 / 16 page www.ti.com Q S R CT Ipk Q2 Q1 2 1 Oscillator _ + 1.25-V Reference Regulator 4 5 3 8 7 6 RSC 0.24 Ω 953 Ω R1 CO 1N5819 1500 pF R2 8.2 k Ω 100 µF + VCC Vout −12 V/100 mA 1.0 µH 100 µF Optional Filter Vin 4.5 V to 6.0 V + + 1000 µF + L 88 µH Comparator V out + *1.25 (1 ) R2 R1 ) 8 7 6 1 2 8 7 6 1 2 Vin Vout Vin Vout a) EXTERNAL npn SWITCH b) EXTERNAL pnp SATURATED SWITCH MC33063A, MC34063A 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS SLLS636J – DECEMBER 2004 – REVISED OCTOBER 2005 Figure 10. Voltage-Inverting Converter TEST CONDITIONS RESULTS Line regulation VIN = 4.5 V to 6 V, IO = 100 mA 3 mV ± 0.12% Load regulation VIN = 5 V, IO = 10 mA to 100 mA 0.022 V ± 0.09% Output ripple VIN = 5 V, IO = 100 mA 500 mVPP Short-circuit current VIN = 5 V, RL = 0.1 Ω 910 mA Efficiency VIN = 5 V, IO = 100 mA 62.2% Output ripple with optional filter VIN = 5 V, IO = 100 mA 70 mVPP Figure 11. External Current-Boost Connections for IC Peak Greater Than 1.5 A 8 |
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