The LMR516xx is a wide-V IN, easy-to-use synchronous buck converter capable of driving up to 0.6-A and 1-A load current. With a wide input range of 4 V to 65 V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.
The LMR516xx operates at 400-kHz and 1.1-MHz switching frequency to support use of relatively small inductors for an optimized design size. The LMR516xx has a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.
The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LMR516xxSIMPLE SWITCHERPower Converter, 4-V to 65-V, 0.6-A/1-A Buck Converter in a SOT-23 Package datasheet (Rev. B) | PDF | HTML | 06 Dec 2023 |
| Application note | Estimate, Measure, and Reduce the Voltage Drop of Buck Converter in Battery Power Applications | PDF | HTML | 27 Jun 2024 | |
| Application note | SOT236 IBB Application Design with LMR51610 | PDF | HTML | 05 Dec 2023 | |
| Functional safety information | LMR516xx Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 25 Aug 2023 | |
| Certificate | LMR51610EVM EU Declaration of Conformity (DoC) | 23 May 2023 |
For additional terms or required resources, click any title below to view the detail page where available.
The LMR51610 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR51610 step-down converter. The EVM is 3.3V output, with a wide input range of up to 65V, 1A load current, with internal fixed frequency, and is able to accept AC signal injection for loop (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
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Welcome to the LMR51610 Synchronous Buck Converter Design Tool. This tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LMR51610 LMR51606 synchronous buck DC/DC converter. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.