LMR36502 Evaluation Module
Abstract
The Texas Instruments LMR36502EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMR36502 wide-input buck converter. The LMR36502 is an easy-to-use synchronous step-down voltage converter capable of driving up to 150 mA of load current from an input voltage of up to 65 V. The LMR36502EVM features an output voltage of 3.3 V and an adjustable switching frequency up to 2.2 MHz. See the data sheet for additional features, detailed descriptions, and available options.
| EVM | U1 | FREQUENCY | SPREAD SPECTRUM | CURRENT | PIN 1 TRIM |
|---|---|---|---|---|---|
| LMR36502EVM | LMR36502F3RPE | 2200 kHz | Disabled | 150 mA | RT |
LMR36502EVM BoardTrademarks
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1 Setup
This section describes the test points and connectors on the EVM and how to properly connect, set up, and use the LMR36502 EVM.
1.1 Test Points
The test points on the board can be used for connecting to the input of a power supply and output load for the EVM. See Figure 1-1 for typical test setup. The functions of the test points connections are:
- VIN_EMI — Input supply to EVM including an EMI filter. Connect to a input supply. Connect at this point for EMI test.
- GND_EMI — Ground connection for the input supply.
- VIN — Input supply to the IC. Can be connected to DMM to measure input voltage after EMI filter.
- VOUT — Output voltage test point of EVM. Can be connected to a desired load.
- GND — Ground test points.
- EN — This test point is connected to the EN pin. By default, there is a pullup resistor R1 (RENT) to VIN to enable the IC.
- PGOOD — This test point is connected to the PGOOD pin from the IC. Can be tied to an external supply through a pullup resistor or left open.
- RT — In a RT trim part, this test point is connected to the RT pin of the IC.
Figure 1-1 EVM Board
Connections