LMS3655MQEVM: 5V @ 5.5 A, 3.5 ~ 36V in

Summary

The LMS3655xQEVM is specifically designed for automotive and high-performance industrial applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output at a continuous load of 5.5-A. The LMS3635xQEVM is implemented using the same PCB board and components, but the IC current limit is set for a maximum continuous load of 3.5-A. The LMS3655xQEVM can be used to evaluate both the LMS3655-Q1 IC and the LMS3655 IC.

All aspects of the LMS3635xQEVM and LMS3655xQEVM are optimized for high-performance industrial and automotive markets. An input voltage range to 36 V eases the input surge protection design.

Exceptional dropout performance allows for the elimination of a boost stage in many designs for start and stop applications. An open-drain RESET output, with filtering and Power Good delay, provides a true indication of system status. This feature negates the requirement for additional supervisory circuitry, saving cost, and board space.

Seamless transition between PWM and PFM operation, along with a low quiescent current, ensures high efficiency at all loads. The Texas Instruments LMS3655xQEVM and LMS3635xQEVM help to evaluate the operation and performance of the LMS3655-Q1, LMS3655, and LMS3635-Q1.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-48018-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	5 V
Current Out	5.5 A
Voltage In	3.5 ~ 36 V
Efficiency @ Conditions	>90%, 6V in, 5V @ 0.003 ~ 5.5 A >90%, 24V in, 5V @ 0.6 ~ 5.5 A >90%, 12V in, 5V @ 0.008 ~ 5.5 A >85%, 36V in, 5V @ 0.1 ~ 5.5 A
Voltage Out Range	3.3 ~ 6 V
Features	Current Limit (Adj. or Fixed) Light Load Mode PFM or PWM Power Good Output Soft Start Spread Spectrum Modulation Synchronizable Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	400 kHz
Standby Current [Typical]	2 µA
Quiescent Current [Typical]	7.5 µA
Component Count + Extras	30 + 25
Internal Switch	Yes
Design Author	Texas Instruments
Application / Target Market	Automotive Medical Telecom
Standby Current [Maximum]	3 µA
Quiescent Current [Maximum]	16 µA
Main I.C. Base Part	LMS3655
Date Created By Author	2018-04
Date Added To Library	2020-02