AP65200S-13(2012) Просмотр технического описания (PDF) - Diodes Incorporated.
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AP65200
Pin Descriptions
Pin
Name
BS
IN
SW
GND
FB
COMP
EN
SS
Pin Number
SO-8
1
2
3
4
5
6
7
8
Function
High-Side Gate Drive Boost Input. BS supplies the drive for the high-side N-Channel MOSFET a 0.01µF or
greater capacitor from SW to BS to power the high side switch.
Power Input. IN supplies the power to the IC, as well as the step-down converter switches. Drive IN with a 4.75V
to 18V power source. Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
See Input Capacitor.
Power Switching Output. SW is the switching node that supplies power to the output. Connect the output LC
filter from SW to the output load. Note that a capacitor is required from SW to BS to power the high-side switch.
Ground
Feedback Input. FB senses the output voltage and regulates it. Drive FB with a resistive voltage divider
connected to it from the output voltage. The feedback threshold is 0.925V. See Setting the Output Voltage.
Compensation Node. COMP is used to compensate the regulation control loop. Connect a series RC network
from COMP to GND. In some cases, an additional capacitor from COMP to GND is required. See Compensation
Components.
Enable Input. EN is a digital input that turns the regulator on or off. Drive EN high to turn on the regulator; low to
turn it off. Attach to IN with a 100kΩ pull up resistor for automatic startup.
Soft-Start Control Input. SS controls the soft-start period. Connect a capacitor from SS to GND to set the soft-
start period. A 0.1µF capacitor sets the soft-start period to 15ms. To disable the soft-start feature, leave SS
floating.
Functional Block Diagram
http://www.DataSheet4U.net/
AP65200
Document number: DS35548 Rev. 3 - 2
2 of 15
www.diodes.com
December 2012
© Diodes Incorporated
datasheet pdf - http://www.DataSheet4U.net/
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