RT7247AHGSP
Evaluation Board
UG7247AHGSP-00 July 2014
www.richtek.com
4
Bench Test Setup Conditions
Headers Description and Placement
Please carefully inspect the EVB IC and external components, comparing them to the
following Bill of Materials, to ensure that all components are installed and undamaged. If any
components are missing or damaged during transportation, please contact the distributor or
send e-mail to [email protected].
Test Points
The EVB is provided with the test points and pin names listed in the table below.
Test point/
Pin name
Signal
Comment (expected waveforms or voltage levels on test
points)
VIN
Input voltage
Input voltage range= 4.5V to 18V
VOUT
Output voltage
Default output voltage = 3.3V
Output voltage range= 0.8V to 15V
(see ‘’ Output Voltage Setting’’ section for changing output voltage
level)
SW
Switching node test point
SW waveform
EN
Enable test point
Enable signal. EN is automatically pulled high (by R4) to enable
operation. Connect EN low to disable operation.
BS
Boot strap supply test point
Floating supply voltage for the high-side N-MOSFET switch
SS
Soft-start control test point
Soft start waveform
GND
Ground
Ground
