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DR73-100-R Fiches technique(PDF) 5 Page - Analog Devices

No de pièce DR73-100-R
Description  1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator
PDF  28 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

DR73-100-R Fiches technique(HTML) 5 Page - Analog Devices

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ADP2300/ADP2301
Rev. 0 | Page 5 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADP2300/
ADP2301
TOP VIEW
(Not to Scale)
1
2
3
6
5
4
SW
VIN
EN
BST
GND
FB
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
BST
Boost Supply for the High-Side MOSFET Driver. A 0.1 μF capacitor is connected between the SW and BST pins
to form a floating supply to drive the gate of the MOSFET switch above the VIN supply voltage.
2
GND
Ground. Connect this pin to the ground plane.
3
FB
Feedback Voltage Sense Input. Connect this pin to a resistive divider from VOUT. Set the voltage to 0.8 V for a
desired VOUT.
4
EN
Output Enable. Pull this pin high to enable the output. Pull this pin low to disable the output. This pin can
also be used as a programmable UVLO input. This pin has a 1.2 μA pull-down current to GND.
5
VIN
Power Input. Connect to the input power source with a ceramic bypass capacitor to GND directly from this pin.
6
SW
Switch Node Output. Connect an inductor to VOUT and a catch diode to GND from this pin.



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