EP3001 Evaluation Board Manual
DESCRIPTION
This manual aims to illustrate how to use the EP3001 Evaluation Board (“EP3001 EVB”).
The EP3001 EVB is a constant-frequency buck regulator, using the EP3001, 1.5MHz, 600mA
Synchronous Step-down Converter. The EP3001 EVB is available for input voltage range from 2.5V to
5.5V. The EP3001 EVB is capable of delivering up to 600mA of output current at minimum input voltage
of 3V, or even up to 800mA under certain specific condition.
This manual includes Quick Start for using the EP3001 EVB, Demonstration Circuit, PCB Layout and
Bill of Material for the EP3001 EVB.
QUICK START
The EP3001 EVB is easy to set up to evaluate the performance of the EP3001. For proper measurement
equipment setup, please follow the explanation below:
Fixed Voltage Type
1. Connect the power supply to the Vin and GND terminals, respectively, on the right side of the EVB.
(Do
NOT
hot-plug Vin or increase Vin over the rated maximum supply voltage of 6V, or the part may
be damaged.)
2. Connect the load between the Vout and GND terminals, respectively.
3. Connect the required measurement equipments, refer to Figure 1.
4. Turn on the power supply.
5. Measure Vin, Vout, Iin and Iout.
Adjustable Type
1. Select the shunt at JP4 for different output voltage.
IF the Vout required is not listed in the EVB, please see Output Programming section.
2. Connect the power supply to the Vin and GND terminals, respectively, on the right side of the EVB.
(Do
NOT
hot-plug Vin or increase Vin over the rated maximum supply voltage of 6V, or the part may
be damaged.)
3. Connect the load between the Vout and GND terminals, respectively.
4. Connect the required measurement equipments, refer to Figure 1.
5. Turn on the power supply.
6. Measure Vin, Vout, Iin and Iout.
Rev.01
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EP3001 Evaluation Board Manual
Figure 1 EP3001 Evaluation Board Diagram
Jump Setting
1. Default setting of JP1 is RUN, so as to enable the EP3001. If Shutdown condition is required, please
turn off the power supply and switch JP1 to SHDN. Then power on to test the Shutdown condition. Do
NOT
keep JP1 floating at any time.
2. JP3 is for voltage option only. FIXED is for fixed voltage option with the marking of “A2YW”, “A3YW”,
“A4YW” and “C4YW”. ADJ is for adjustable voltage option with the marking of “A1YW”. Do
NOT
change JP3 at any time.
3. JP4 is for output voltage selection for adjustable type. When AUX is selected, please see the following
section.
Output Programming
The output programming resistors for adjustable type are listed in Table 1. If AUX with JP4 is
selected, please put on R2F according to the following equation:
R
2
V
out
=
0 . 6
V
1
+
R
1
Table 1 Output Programming Resistor
Vout (V)
1.2
1.5
1.8
2.5
3.1
3.3
AUX
R1 (K )
60
60
60
60
60
60
60
Rev.01
R2 (K )
R2A = 60
R2B =90
R2C = 120
R2D =190
R2=250
R2E = 270
R2F = Function
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