Texas Instruments LM5013-Q1EVM, Руководство пользователя, Страница: 5 / 18

3 LM5013-Q1 Evaluation Module
The LM5013-Q1EVM is configured to deliver 12-V at up to 3.5-A at a switching frequency of 300-kHz. As
shown in
LM5013-Q1EVM schematic , a type 3 ripple generation circuit is used to generate the appropriate
voltage ripple on FB. This circuit uses an RC network (consisting of "R4" and "C4") between SW and V
OUT
to create a triangular ramp. This triangular ramp is then AC coupled into the feedback node with capacitor
"C16." This method is best suited for applications where low output voltage ripple is required and where ceramic
output capacitors are used (since it is not using the output voltage to generate the ripple signal). If additional
output ripple can be managed, a possibility for reduced BOM count can be achieved with type 1 or type 2
compensation. Reference the data sheet for these implementations.
3.1 Quick Start Procedure
1. Connect the voltage supply between VIN and GND connectors using short wires.
2. Connect the load of the converter between VOUT and GND connectors using short wires.
3. Set the supply voltage (V
VIN
) at an appropriate level between 15-V to 100-V. Set the current limit of the
supply to an appropriate level as well.
4. Turn on the power supply. The EVM powers up and provides V
OUT
= 12-V.
5. Monitor the output voltage while increasing the load current to max.
See Figure 3-1 for the location of the connectors.
Figure 3-1. LM5013-Q1 EVM Top View
CAUTION
Caution Hot surface.
Contact may cause burns.
Do not touch.
www.ti.com LM5013-Q1 Evaluation Module
SNVU754A – OCTOBER 2021 – REVISED NOVEMBER 2021
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LM5013-Q1EVM User's Guide 5
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