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Load

(+)

(-)

DMM

(-)

(+)

DMM

(-)

(+)

Input 

Supply

(+)

(-)

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Setup

3

SNVU671 – February 2020

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Copyright © 2020, Texas Instruments Incorporated

LMR36506RREVM User’s Guide

1

Setup

This section describes the test points and connectors on the EVM and how to properly connect, set up,
and use the LMR36506RREVM.

1.1

Test Points

The test points on the top of the board can be used for connecting to the input and output of the EVM.
See

Figure 2

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 suitable input supply. Connect at

this point for conducted EMI test.

GND —

Ground connection for the input supply as well as test points for ground connection

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

EN —

This test point is connected to the EN pin. By default, there is a pullup resistor R2 (RENT) to

VIN to enable the IC.

PGOOD —

This test point is connected to the PGOOD pin from the IC. It is an open-drain output of the

PGOOD pin. Can be tied to external supply through a pullup resistor or left open

SYNC —

In a

MODE/SYNC

trim part, this test point is connected to the SYNC pin of the IC. Can be

connected to an external clock to synchronize the IC. Make sure R4 (RMODE) is installed and R5 (RT)
is not installed. In a

RT

trim part, this test point is connected to the RT pin of the IC when the R4

(RMODE) is installed.

VCC —

This test point is connected to the VCC pin.

SW —

This test point is connected to the switch node.

Figure 2. EVM Board Connections

Summary of Contents for LMR36506RREVM

Page 1: ...se synchronous step down DC DC converter capable of driving up to 0 6 A of load current from an input voltage of up to 65 V The LMR36506RREVM features an output voltage of 3 3 V or 5 V and a switching...

Page 2: ...7 5 Bill of Materials 9 List of Figures 1 LMR36506RREVM Board 1 2 EVM Board Connections 3 3 Jumper Locations 4 4 LMR36506RREVM Schematic 6 5 Top View of EVM 7 6 EVM Top Copper Layer 7 7 EVM Mid Layer...

Page 3: ...ound connection 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 EN This test point...

Page 4: ...this jumper to select the mode of operation in a MODE SYNC trim part Connecting a jumper between pin 1 and 2 cause the IC to operate in PFM Pulse Frequency Modulation mode for a higher efficiency at...

Page 5: ...the VIN_EMI and GND test points 2 Connect the load between the VOUT and GND test points 3 Set the supply voltage at an appropriate level between 5 5 V to 65 V Set the current limit of the supply to a...

Page 6: ...FBT GND 22uF C5 COUT1 22uF C10 COUT2 DNP 10pF C13 CFF DNP 0 R4 RMODE VOUT 3 3V B A VIN VINEMI GND VOUT VOS AGND TP13 VCC TP12 SW TP14 GND 43 2k R7 RFBB1 59 0k R10 RFBB2 1 2 J4 JVOUT RT 1 PGOOD 2 EN UV...

Page 7: ...7 SNVU671 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LMR36506RREVM User s Guide 4 Board Layout Figure 5 Top View of EVM Figure 6 EVM Top Copper Layer Fig...

Page 8: ...Layout www ti com 8 SNVU671 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LMR36506RREVM User s Guide Figure 8 EVM Mid Layer Two Figure 9 EVM Bottom Copper...

Page 9: ...2 07 G S 2 L1 MSS6132 153MLB Inductor Shielded Drum Core Ferrite 15 H 1 56 A 0 14 SMD Coilcraft MSS6132 153MLB 1 L2 FBMH3225HM601N T Ferrite Bead 600 at 100 MHz 3 A 1210 Taiyo Yuden FBMH3225HM601NT 1...

Page 10: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 11: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 12: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 13: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 14: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 15: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

Page 16: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments LMR36503RFEVM LMR36506RREVM...

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