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LT7200SAVPBF Datasheet(PDF) 8 Page - Analog Devices

No. de pieza LT7200SAVPBF
Descripción Electrónicos  Quad 18V, ±5A Synchronous Monolithic Step-Down Regulator
PDF  35 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
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LT7200SAVPBF Datasheet(HTML) 8 Page - Analog Devices

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Data Sheet
LT7200S
analog.com
Rev 0
8 of 35
22
FB4
Channel 4 Feedback Input to the Error Amplifier of the Step-Down Regulator. LT7200S
regulates this pin to a 0.5V accurate internal reference voltage. Connect resistor
divider tap to this pin. The output voltage, VOUT, can be adjusted from 0.5V to 0.9 x VIN
by: VOUT = 0.5V x [1+(R2/R1)].
18
ITH1
Channel 1 Error Amplifier Output and Switching Regulator Compensation Point. The
current comparator’s trip threshold is linearly proportional to this voltage. Normal
range is from 0.3V to 1.6V.
45
ITH2
Channel 2 Error Amplifier Output and Switching Regulator Compensation Point. The
current comparator’s trip threshold is linearly proportional to this voltage. Normal
range is from 0.3V to 1.6V.
42
ITH3
Channel 3 Error Amplifier Output and Switching Regulator Compensation Point. The
current comparator’s trip threshold is linearly proportional to this voltage. Normal
range is from 0.3V to 1.6V.
21
ITH4
Channel 4 Error Amplifier Output and Switching Regulator Compensation Point. The
current comparator’s trip threshold is linearly proportional to this voltage. Normal
range is from 0.3V to 1.6V.
19
RUN1
Channel 1 Logic Controlled RUN Input. Do not leave this pin floating. Logic High
activates the step-down regulator.
44
RUN2
Channel 2 Logic Controlled RUN Input. Do not leave this pin floating. Logic High
activates the step-down regulator.
43
RUN3
Channel 3 Logic Controlled RUN Input. Do not leave this pin floating. Logic High
activates the step-down regulator.
20
RUN4
Channel 4 Logic Controlled RUN Input. Do not leave this pin floating. Logic High
activates the step-down regulator.
25
INTVCC
Internal 5V Regulator Output. The internal power drivers and control circuits are
powered from this voltage. Decouple this pin to power ground with a minimum of
4.7µF low ESR ceramic capacitor.
38
RT
Switching Frequency Program Pin. Connect an external resistor RRT (between 249kΩ to
33.2kΩ) from this pin to GND to program the frequency from 400kHz to 3MHz.



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