RT8279GSP Datasheet, PDF (3/8 Pages) Richtek Technology Corporation – RT8279 Step-Down Converter Evaluation Board

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Evaluation Board
RT8279GSP
Evaluation Board
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
[e-mail]
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 = 5.5V to 36V
VOUT
Output voltage
Output voltage = 2.4V
SW
Switch Node
The EN pin is externally pulled to High by adding a 100kΩ resistor
(R4) from the VIN pin in this EVB setting. For another enable
EN
Chip Enable Operation
operation, pull the EN pin low (<0.4V) will shutdown the device,
drive the EN pin to high (>1.4V, <5.5V) will turn on the device
again.
GND
Ground
Ground
Power-up & Measurement Procedure
1. Connect input power (5.5V< V_IN < 36V) and input ground to Vin and GND pins respectively.
2. Connect positive end and negative end of load to VOUT and GND of output pins respectively.
3. The output voltage of (V_OUT) can be set by R1 and R2.
V_OUT = V_REF * (1+R1/R2)
where V_REF = 1.222V (typ.)
EVB_RT8279GSP-00 June 2015
http://www.richtek.com