LMZ31710EVM-001: 0.6 ~ 5.5V @ 10A, 2.95 ~ 17V in

Summary

The LMZ31710EVM-001, LMZ31707EVM-002 and LMZ31704EVM-003 evaluation modules are designed as an easy-to-use platform that facilitates an extensive evaluation of the features and performance of the Simple Switcher® power module. This guide provides information on the correct usage of the EVM and an explanation of the numerous test points on the board.

This EVM features the LMZ31710 (10-A), LMZ31707 (7-A), or LMZ31704 (4-A), synchronous buck power module configured for operation with typical 5-V and 12-V input bus applications. The output voltage can be set to one of seven popular values by using a configuration jumper. In similar fashion, the switching frequency can be set to one of seven values with a jumper. The full output current rating of the device can be supplied by the EVM. Input and output capacitors are included on the board to accommodate the entire range of input and output voltages. Monitoring test points are provided to allow measurement of efficiency, power dissipation, input ripple, output ripple, line and load regulation, and transient response. Control test points are provided for use of the PWRGD, Inhibit/UVLO, synchronization, and slow-start/tracking features of the LMZ317xx device. The EVM uses a recommended PCB layout that maximizes thermal performance and minimizes output ripple and noise.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-37077-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	0.6 V 0.9 V 1.2 V 1.8 V 3.3 V 5 V
Current Out	10 A
Voltage In	2.95 ~ 17 V
Efficiency @ Conditions	>92%, 12V in, 5V @ 1.3 ~ 10 A >91%, 5V in, 3.3V @ 0.3 ~ 10 A >88%, 5V in, 2.5V @ 0.3 ~ 10 A >87%, 12V in, 2.5V @ 1.3 ~ 10 A >82%, 5V in, 1.2V @ 0.2 ~ 10 A >81%, 12V in, 1.2V @ 0.95 ~ 10 A >78%, 12V in, 0.9V @ 0.9 ~ 10 A >74%, 5V in, 0.6V @ 0.2 ~ 9.8 A
Voltage Out Range	0.6 ~ 5.5 V
Features	Current Limit (Adj. or Fixed) Light Load Mode Over Current Protection Power Good Output Pre-Biased Startup Synchronizable Thermal Protection Under Voltage Protection, Brown-Out Voltage Tracking
Switching Frequency	200 kHz ~ 1.2 MHz
Standby Current [Typical]	2 µA
Quiescent Current [Typical]	- Not Given
Component Count + Extras	23 + 20
Internal Switch	Yes
Design Author	Texas Instruments
Application / Target Market	FPGA / DSP / Processors Medical Point of Load (PoL) RF: Metering
Standby Current [Maximum]	10 µA
Quiescent Current [Maximum]	- Not Given
Main I.C. Base Part	LMZ31710
Date Created By Author	2013-03
Date Added To Library	2014-05