The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP package.
| Documentación principal | Tipo | Título | Opciones de formato | Fecha |
|---|---|---|---|---|
| * | Data sheet | LM5022 60-V Low-Side Controller for Boost and SEPIC datasheet (Rev. J) | PDF | HTML | 21 may 2018 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
| Technical article | What is behind isolated DC/DC converter voltage regulation? | PDF | HTML | 31 ago 2015 | |
| White paper | How to design boost, SEPIC or flyback regulators with wide VIN power ICs | 29 jul 2014 | ||
| Application note | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 11 jul 2014 | ||
| Application note | AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. B) | 06 may 2013 | ||
| Application note | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 03 may 2013 |
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The LM5022EVM evaluation module (EVM) is a fixed frequency (500-kHz) non-synchronous boost converter providing fixed 40.0-V output at up to 500 mA from a 9-V to 16-V input. The EVM is designed to start up from a single supply, with no additional bias voltage required for start-up. The module uses (...)
This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
Utilice nuestra herramienta de selección de diseños de referencia para revisar e identificar los diseños que mejor se adaptan a su aplicación y parámetros.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| VSSOP (DGS) | 10 | Ultra Librarian |
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