MD1320N 查看數據表（PDF） - Unspecified
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MD1320N Datasheet PDF : 24 Pages
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6 Operating instructions
The MD1320N power IC device uses chopper circuitry and can be referred to as a chopper type DC to DC
converter. The device requires an external choke and capacitor to be connected to it. The characteristics of
these external parts and the way they are packaged and connected will greatly affect the performance of the
device and its circuits. Carefully select these external parts to provide optimum device performance.
Neither the device input side nor output side is isolated.
6 - 1 Basic input and output terminal connections
Power IC device connection and use involves the rated output voltage and the maximum current output range.
1 ) If an output voltage of 3.3V is required, connect Pins 27 and 28. If an output voltage of 5V is required, connect Pins 26
and 27.
2 ) Pin 23 is the test terminal and must be left open.
3 ) Pins 5, 7, 9, 10, 15, 17, 22, 24, 29, and 31 are internal non-connecting pins (N/C terminals).
4 ) Figure 6-A shows the external parts and their connections. Be sure to prepare and connect these items before using the
device.
5 ) Output capacitor (C5) minimizes switching frequency ripple and provides a smooth and stable output voltage. The use of
a low-impedance capacitor is recommended (low impedance provides minimum ripple).
Standard connections (Figure 6-A)
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