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MC33063AVD 数据表(PDF) 5 Page - ON Semiconductor |
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MC33063AVD 数据表(HTML) 5 Page - ON Semiconductor |
5 / 12 page MC34063A MC33063A 5 MOTOROLA ANALOG IC DEVICE DATA 170 µH L 8 180 7 Rsc 0.22 6 Vin 12 V 100 + 5 R1 2.2 k R2 47 k SQ R Q2 Q1 Ipk Osc CT VCC + – Comp. 1.25 V Ref Reg 1 2 3 4 1N5819 CT 1500 pF 330 CO + Vout 28 V/175 mA Vout 1.0 µH + 100 Optional Filter Figure 7. Step–Up Converter Test Conditions Results Line Regulation Vin = 8.0 V to 16 V, IO = 175 mA 30 mV = ±0.05% Load Regulation Vin = 12 V, IO = 75 mA to 175 mA 10 mV = ±0.017% Output Ripple Vin = 12 V, IO = 175 mA 400 mVpp Efficiency Vin = 12 V, IO = 175 mA 87.7% Output Ripple With Optional Filter Vin = 12 V, IO = 175 mA 40 mVpp 8a. External NPN Switch 8b. External NPN Saturated Switch (See Note 5) 8 7 6 Rsc Vin 1 2 Vout R R ³ 0 for constant Vin NOTE: 5. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents ( ≤ 300 mA) and high driver currents ( ≥ 30 mA), it may take up to 2.0 µs to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non–Darlington configuration is used, the following output drive condition is recommended. 8 7 6 Rsc Vin 1 2 Vout Figure 8. External Current Boost Connections for IC Peak Greater than 1.5 A |
类似零件编号 - MC33063AVD |
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类似说明 - MC33063AVD |
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