Building Block Solutions – Switchers (BBS-SW) User’s Guide
Evaluation guide for the BBS-SW modular board featuring Microchip MCP16251, MCP16311, MCP16411, MCP1663, MCP1664, and MCP16331 buck, boost, and LED driver regulators.
Overview
The Building Block Solutions – Switchers (BBS-SW) board is a modular demonstration platform for evaluating Microchip monolithic DC-DC switching regulators. It features seven independent sub-modules: the MCP16251 (3.3V synchronous boost), MCP16311 (30V input, 3.3V buck), MCP16411 (low IQ boost), two versions of the MCP1663 boost regulator (12V and 24V outputs), the MCP1664 step-up LED driver (100mA), and the MCP16331 high-voltage buck regulator (5V output). The document provides technical parameters, power-up procedures, detailed schematics, and PCB layouts for each topology to facilitate rapid prototyping and reference design integration.
Use Cases
- Evaluating DC-DC switching regulator performance
- Prototyping power supply stages for battery-powered devices
- Designing high-efficiency buck/boost converters for industrial systems
- Implementing LED driver circuits for white LED strings
- Reference design for portable and embedded power management
Topics
Referenced Parts
Wurth Electronics
Connector, Terminal, 2.54 mm, 1x4, Female, 18-30AWG, 6A, Through Hole, R/A in BOM
Wurth Electronics
Connector, Terminal, 2.54mm, 1x5, Female, 18-30AWG, 6A, Through Hole, R/A in BOM
1N4148WX-TP
Micro Commercial Components (MCC)
Diode, Rectifier, 1N4148, 1V, 150 mA, 75V, SMD, SOD-323 in BOM
MCP16251T-I/CH
Microchip Technology Inc.
Analog Switcher, Boost, 1.8V to 5.5V, SOT-23-6 in Microchip Parts table
MCP16311T-E/MNY
Microchip Technology Inc.
Analog Switcher, Buck, 2V to 24V, TDFN-8 in Microchip Parts table
MCP16331T-E/CH
Microchip Technology Inc.
Analog Switcher, Buck, 2V to 24V, SOT-23-6 in Microchip Parts table
MCP16411T-I/UN
Microchip Technology Inc.
Analog Switcher, Boost, 1.8V to 5.25V, MSOP-10 in Microchip Parts table
MCP1663T-E/OT
Microchip Technology Inc.
Analog Switcher, Boost, 32V, SOT-23-5 in Microchip Parts table
MCP1664T-E/OT
Microchip Technology Inc.
Analog Switcher, Boost, 32V, SOT-23-5 in Microchip Parts table
RMCF0805FT9K10
Stackpole Electronics, Inc.
Resistor, TKF, 9.1 kΩ, 1%, 1/8W, SMD, 0805 in BOM
C3225X7R1N106K250AC
TDK Corporation
Capacitor, Ceramic, 0.1 μF, 100V, 10%, X7R, SMD, 0805 in BOM
560112116004
Wurth Elektronik
Resistor, TKF, 100 kΩ, 1%, 1/10W, SMD, 0603 in BOM
560112116044
Wurth Elektronik
Resistor, TKF, 120 kΩ, 1%, 1/10W, SMD, 0603 in BOM
560112116074
Wurth Elektronik
Resistor, TKF, 1 MΩ, 1%, 1/10W, SMD, 0603 in BOM
560112120002
Wurth Elektronik
Resistor, TKF, 0Ω, 1/8W, SMD, 0805 in BOM
560112120004
Wurth Elektronik
Resistor, TKF, 10 kΩ, 1%, 1/4W, SMD, 0805 in BOM
560112120013
Wurth Elektronik
Resistor, TKF, 100 kΩ, 1%, 1/4W, SMD, 0805 in BOM
74438335047HT
Wurth Elektronik
Inductor, 4.7 μH, 2.2A, 20%, WE-MAPI, SMD in BOM
7443844020047
Wurth Elektronik
Inductor, 4.7 μH, 5.2A, 20%, WE-MAPI, SMD, L4.1W4.1H2.1 in BOM
744393305100
Wurth Elektronik
Inductor, 10 μH, 5A, 20%, WE-XHMI, SMD in BOM
885012107019
Wurth Elektronik
Capacitor, Ceramic, 22 μF, 25V, 20%, X5R, SMD, 0805 in BOM
885012107027
Wurth Elektronik
Capacitor, Ceramic, 10 μF, 25V, 10%, X5R, SMD, 0805 in BOM
RC0603FR-07360KL
Yageo Corporation
Resistor, TKF, 360 kΩ, 1%, 1/10W, SMD, 0603 in BOM
RC0603FR-07866KL
Yageo Corporation
Resistor, TKF, 866 kΩ, 1%, 1/10W, SMD, 0603 in BOM
74438335047HT
Wurth Elektronik
1 L10 Inductor, 4.7 μH, 2.2A, 20%, WE-MAPI, SMD Wurth Elektronik 74438335047HT
MSOP-10
Microchip
1 U30 Analog Switcher, Boost, 1.8V to 5.25V, MSOP-10 Microchip Technology Inc. MCP16411T-I/UN
SOT-23-5
Microchip
1 U60 Analog Switcher, Boost, 32V, SOT-23-5 Microchip Technology Inc. MCP1664T-E/OT
SOT-23-5
Microchip
2 U40, U50 Analog Switcher, Boost, 32V, SOT-23-5 Microchip Technology Inc. MCP1663T-E/OT
SOT-23-6
Microchip
1 U10 Analog Switcher, Boost, 1.8V to 5.5V, SOT-23-6 Microchip Technology Inc. MCP16251T-I/CH
SOT-23-6
Microchip
1 U70 Analog Switcher, Buck, 2V to 24V, SOT-23-6 Microchip Technology Inc. MCP16331T-E/CHCT-ND
TDFN-8
Microchip
1 U20 Analog Switcher, Buck, 2V to 24V, TDFN-8 Microchip Technology Inc. MCP16311T-E/MNY
| ERJ-6ENF1693V | Panasonic | Resistor, TKF, 169 kΩ, 1%, 1/8W, SMD, 0805 in BOM |
| ERJ-6ENF3162V | Panasonic | Resistor, TKF, 31.6 kΩ, 1%, 1/8W, SMD, 0805 in BOM |
| ERJ-6ENF5232V | Panasonic | Resistor, TKF, 52.3 kΩ, 1%, 1/8W, SMD, 0805 in BOM |
| CRCW06031M05FKEA | Vishay | Resistor, TKF, 1.05 MΩ, 1%, 1/10W, SMD, 0603 in BOM |
| CRCW06031M69FKEA | Vishay | Resistor, TKF, 1.69 MΩ, 1%, 1/10W, SMD, 0603 in BOM |
| CRCW08053R00FKEA | Vishay | Resistor, TKF, 3Ω, 1%, 1/8W, SMD, 0805 in BOM |
| ERJ-6ENF1693V | Panasonic | 1 R51 Resistor, TKF, 169 kΩ, 1%, 1/8W, SMD, 0805 Panasonic ERJ-6ENF1693V |
| ERJ-6ENF3162V | Panasonic | 1 R21 Resistor, TKF, 31.6 kΩ, 1%, 1/8W, SMD, 0805 Panasonic ERJ-6ENF3162V |
| ERJ-6ENF5232V | Panasonic | 1 R71 Resistor, TKF, 52.3 kΩ, 1%, 1/8W, SMD, 0805 Panasonic ERJ-6ENF5232V |
| CRCW06031M05FKEA | Vishay | 1 R41 Resistor, TKF, 1.05 MΩ, 1%, 1/10W, SMD, 0603 Vishay CRCW06031M05FKEA |
| CRCW06031M69FKEA | Vishay | 1 R11 Resistor, TKF, 1.69 MΩ, 1%, 1/10W, SMD, 0603 Vishay CRCW06031M69FKEA |
| CRCW08053R00FKEA | Vishay | 1 R61 Resistor, TKF, 3Ω, 1%, 1/8W, SMD, 0805 Vishay CRCW08053R00FKEA |
| MBRA140T3G | Onsemi | Diode, Schottky, 505 mV, 1A, 40V, SMD, DO-214AC (SMA) in BOM |
| MBRS1100T3G | Onsemi | Diode, Schottky, 750 mV, 1A, 100V, SMD, SMB in BOM |
| SZ1SMA5935BT3G | Onsemi | Diode, Zener, 27V, 1.5W, DO-214AC (SMA) in BOM |
| 691210910004 | Wurth Electronics | Connector, Terminal, 2.54 mm, 1x4, Female, 18-30AWG, 6A, Through Hole, R/A in BOM |
| 691210910005 | Wurth Electronics | Connector, Terminal, 2.54mm, 1x5, Female, 18-30AWG, 6A, Through Hole, R/A in BOM |
| 74438356150 | Wurth Electronics | Inductor, 15 μH, 2.1A, 20%, WE-MAPI, SMD in BOM |
| 74438356220 | Wurth Electronics | Inductor, 22 μH, 1.7A, 20%, SMD, L4.1W4.1H2.1 in BOM |
| 885012108022 | Wurth Electronics | Capacitor, Ceramic, 10 μF, 50V, 10%, X5R, SMD, 1206 in BOM |
| 885012207078 | Wurth Electronics | Capacitor, Ceramic, 1 μF, 25V, 10%, X7R, SMD, 0805 in BOM |
| 885012207128 | Wurth Electronics | Capacitor, Ceramic, 10 μF, 75V, 10%, X7R, SMD, 1210 in BOM |
| 1N4148WX-TP | Micro Commercial Components (MCC) | Diode, Rectifier, 1N4148, 1V, 150 mA, 75V, SMD, SOD-323 in BOM |
| MCP16251T-I/CH | Microchip Technology Inc. | Analog Switcher, Boost, 1.8V to 5.5V, SOT-23-6 in Microchip Parts table |
| MCP16311T-E/MNY | Microchip Technology Inc. | Analog Switcher, Buck, 2V to 24V, TDFN-8 in Microchip Parts table |
| MCP16331T-E/CH | Microchip Technology Inc. | Analog Switcher, Buck, 2V to 24V, SOT-23-6 in Microchip Parts table |
| MCP16411T-I/UN | Microchip Technology Inc. | Analog Switcher, Boost, 1.8V to 5.25V, MSOP-10 in Microchip Parts table |
| MCP1663T-E/OT | Microchip Technology Inc. | Analog Switcher, Boost, 32V, SOT-23-5 in Microchip Parts table |
| MCP1664T-E/OT | Microchip Technology Inc. | Analog Switcher, Boost, 32V, SOT-23-5 in Microchip Parts table |
| RMCF0805FT9K10 | Stackpole Electronics, Inc. | Resistor, TKF, 9.1 kΩ, 1%, 1/8W, SMD, 0805 in BOM |
| C3225X7R1N106K250AC | TDK Corporation | Capacitor, Ceramic, 0.1 μF, 100V, 10%, X7R, SMD, 0805 in BOM |
| 560112116004 | Wurth Elektronik | Resistor, TKF, 100 kΩ, 1%, 1/10W, SMD, 0603 in BOM |
| 560112116044 | Wurth Elektronik | Resistor, TKF, 120 kΩ, 1%, 1/10W, SMD, 0603 in BOM |
| 560112116074 | Wurth Elektronik | Resistor, TKF, 1 MΩ, 1%, 1/10W, SMD, 0603 in BOM |
| 560112120002 | Wurth Elektronik | Resistor, TKF, 0Ω, 1/8W, SMD, 0805 in BOM |
| 560112120004 | Wurth Elektronik | Resistor, TKF, 10 kΩ, 1%, 1/4W, SMD, 0805 in BOM |
| 560112120013 | Wurth Elektronik | Resistor, TKF, 100 kΩ, 1%, 1/4W, SMD, 0805 in BOM |
| 74438335047HT | Wurth Elektronik | Inductor, 4.7 μH, 2.2A, 20%, WE-MAPI, SMD in BOM |
| 7443844020047 | Wurth Elektronik | Inductor, 4.7 μH, 5.2A, 20%, WE-MAPI, SMD, L4.1W4.1H2.1 in BOM |
| 744393305100 | Wurth Elektronik | Inductor, 10 μH, 5A, 20%, WE-XHMI, SMD in BOM |
| 885012107019 | Wurth Elektronik | Capacitor, Ceramic, 22 μF, 25V, 20%, X5R, SMD, 0805 in BOM |
| 885012107027 | Wurth Elektronik | Capacitor, Ceramic, 10 μF, 25V, 10%, X5R, SMD, 0805 in BOM |
| RC0603FR-07360KL | Yageo Corporation | Resistor, TKF, 360 kΩ, 1%, 1/10W, SMD, 0603 in BOM |
| RC0603FR-07866KL | Yageo Corporation | Resistor, TKF, 866 kΩ, 1%, 1/10W, SMD, 0603 in BOM |
| 74438335047HT | Wurth Elektronik | 1 L10 Inductor, 4.7 μH, 2.2A, 20%, WE-MAPI, SMD Wurth Elektronik 74438335047HT |
| MSOP-10 | Microchip | 1 U30 Analog Switcher, Boost, 1.8V to 5.25V, MSOP-10 Microchip Technology Inc. MCP16411T-I/UN |
| SOT-23-5 | Microchip | 1 U60 Analog Switcher, Boost, 32V, SOT-23-5 Microchip Technology Inc. MCP1664T-E/OT |
| SOT-23-5 | Microchip | 2 U40, U50 Analog Switcher, Boost, 32V, SOT-23-5 Microchip Technology Inc. MCP1663T-E/OT |
| SOT-23-6 | Microchip | 1 U10 Analog Switcher, Boost, 1.8V to 5.5V, SOT-23-6 Microchip Technology Inc. MCP16251T-I/CH |
| SOT-23-6 | Microchip | 1 U70 Analog Switcher, Buck, 2V to 24V, SOT-23-6 Microchip Technology Inc. MCP16331T-E/CHCT-ND |
| TDFN-8 | Microchip | 1 U20 Analog Switcher, Buck, 2V to 24V, TDFN-8 Microchip Technology Inc. MCP16311T-E/MNY |