Building Block Solutions - Switchers Schematic
Schematic for Microchip's Building Block Solutions featuring MCP16251, MCP16311, MCP16411, MCP1663, MCP1664, and MCP16331 switching regulators with Wurth inductors.
Overview
This design document provides detailed schematics for various switching regulator building block solutions using Microchip power management ICs. It includes circuit designs for the MCP16251 synchronous boost converter (3.3V/100mA), the MCP16311 30V/1A synchronous buck regulator, the MCP16411 low quiescent current boost converter, and the MCP1663 high-voltage boost regulator configured for both 12V and 24V outputs. The document also covers the MCP1664 LED constant current regulator and the MCP16331 50V/1A buck regulator. Component specifications include Wurth Elektronik power inductors (WE-MXGI, WE-MAPI, and WE-XHMI series) and onsemi Schottky rectifiers such as the MBRA140T3G.
Use Cases
- Battery-powered portable electronics
- LED driving applications
- Industrial DC-DC voltage conversion
- Low-power IoT device power supplies
- High-voltage boost regulation
Topics
Referenced Parts
MCP16411T-I/UN
Microchip
PN: MCP16411T-I/UN
MCP1664T-E/OT
Microchip
PN: MCP1664T-E/OT
74438335047HT
Wurth Elektronik
WE-MAPI High Temperature Series P/N: 74438335047HT
7443844020047
Wurth Elektronik
WE-MXGI SMT Power Inductor P/N: 7443844020047
744393305100
Wurth Elektronik
WE-XHMI SMT Power Inductor P/N: 744393305100
| MCP16251T-I/CH | Microchip | PN: MCP16251T-I/CHCT-ND |
| MCP16311T-E/MNY | Microchip | PN: MCP16311T-E/MNY |
| MCP16331T-E/CH | Microchip | PN: MCP16331T-E/CHCT-ND |
| MCP1663T-E/OT | Microchip | PN: MCP1663T-E/OT |
| MBRA140T3G | Onsemi | MBRA140T3G D40 |
| MBRS1100T3G | Onsemi | MBRS1100T3G D70 |
| 1N4148 | Onsemi | 1N4148 D71 |
| 74438356150 | Wurth Electronics | WE-MAPI SMT Power Inductor P/N: 74438356150 |
| 74438356220 | Wurth Electronics | WE-MAPI SMT Power Inductor P/N: 74438356220 |
| MCP16411T-I/UN | Microchip | PN: MCP16411T-I/UN |
| MCP1664T-E/OT | Microchip | PN: MCP1664T-E/OT |
| 74438335047HT | Wurth Elektronik | WE-MAPI High Temperature Series P/N: 74438335047HT |
| 7443844020047 | Wurth Elektronik | WE-MXGI SMT Power Inductor P/N: 7443844020047 |
| 744393305100 | Wurth Elektronik | WE-XHMI SMT Power Inductor P/N: 744393305100 |