Microchip Technology DN2470, Руководство пользователя

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DN2470 BASED LINEAR REGULATOR
INPUT VOLTAGE RANGE EXTENDER
EVALUATION BOARD USER’S GUIDE
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2016 Microchip Technology Inc. DS50002464A-page 13
Chapter 2. Installation and Operation
2.1 GETTING STARTED
The DN2470 Based Linear Regulator Input Voltage Range Extender Evaluation Board
is fully assembled and tested.
2.1.1 Tools Required for Operation
The tools required for operation include:
• AC Line connection or DC power supply
• An oscilloscope and/or a multimeter to observe the waveforms and measure elec-
trical parameters
2.2 SETUP AND OPERATION PROCEDURE
To prepare the DN2470 Based Linear Regulator Input Voltage Range Extender
Evaluation Board for operation, the steps below must be followed carefully.
1. Select an LDO by placing a jumper on J3 connector. If VIN1 or VIN2 are selected,
SHDN must be shorted to VIN (J5 or J7).
2. Connect a Load if needed at VOUT.
3. Connect the AC Line (120 or 230 VAC) or DC power supply to J1.
Selecting Different LDO
To select a different LDO, the AC Line or DC power supply has to be removed first.
WARNING
Before beginning board setup, fully read this document, the DN2470 Based Linear
Regulator Input Voltage Range Extender Evaluation Board User’s Guide.
CAUTION
Hazardous voltages are present when connected to AC Lines.
Note: Do not touch exposed areas when operating the board. Avoid touching the
heat sink, the drain-exposed pad or the input resistor.