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BB22H52A Building Block Solutions Switchers
Microchip Technology switchers provide a modular evaluation platform for DC/DC switching regulators
The Microchip BB22H52A is a structured evaluation platform designed for electronic technicians and application engineers who need to assess multiple DC/DC converter topologies under consistent test conditions. The board integrates seven independent submodules, each implementing a different switching regulator configuration, allowing direct measurement and comparison of efficiency, ripple, and transient behavior. The platform supports both buck and boost converters, including LED driver evaluation, with accessible test points for current, voltage, and waveform probing. Its modular format allows rapid review of converter characteristics without assembling multiple prototypes, making it suitable for power stage selection and early design analysis.
The board uses several passive and interconnect families from Würth Elektronik to ensure stable switching behavior and reliable lab-bench connections. These include WE-MAPI molded inductors, WR-TBL terminal blocks, MLCC capacitors, and WRIS/RSKS thick-film resistors.
- Seven independent DC/DC converter submodules: buck, boost, and LED driver
- Consistent test layout, enabling direct comparison across regulator types
- Accessible measurement points for voltage, current, and transient analysis
- Stable passive and interconnect components from Würth Elektronik for repeatable evaluations
- Suitable for efficiency characterization, load-step testing, and ripple measurements
- Evaluation of buck and boost power stages
- LED driver testing and analysis
- Early-stage regulator selection in embedded and industrial designs
- Lab training and hands-on switching regulator education
- Comparative analysis of Microchip MCP series converters
- BBS1 - MCP16251 boost regulator: low-quiescent-current synchronous boost regulator for low-input, battery-operated designs
- BBS2 - MCP16311 buck regulator: high-efficiency synchronous buck converter supporting up to 30 V input and 1 A output
- BBS3 - MCP16411 boost regulator: low-IQ boost converter with regulated 3.3 V output capability
- BBS4 - MCP1663 boost regulator (12 V): PWM boost converter configured for a stable 12 V output
- BBS5 - MCP1663 boost regulator (24 V): same device as BBS4 but configured for 24 V output for industrial needs
- BBS6 - MCP1664 LED driver: high-voltage step-up LED driver capable of driving LED strings up to 25 V
- BBS7 - MCP16331 buck regulator: synchronous buck converter producing a regulated 5 V output
Power Management (PMIC)
| Image | Manufacturer Part Number | Description | Function | Output Configuration | Topology | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
 |  | MCP16251T-I/CH | IC REG BOOST ADJ 100MA SOT23-6 | Step-Up | Positive | Boost | 13898 - Immediate | $6.95 | View Details |
|  | MCP1663T-E/OT | IC REG BOOST ADJ 375MA SOT23-5 | Step-Up | Positive | Boost | 4171 - Immediate | $13.63 | View Details |
| | MCP16331T-E/CH | IC REG BUCK ADJ 500MA SOT23-6 | Step-Down | Positive | Buck | 8747 - Immediate | $15.80 | View Details |
|  | MCP16311T-E/MS | IC REG BUCK ADJ 1A 8MSOP | Step-Down | Positive | Buck | 8205 - Immediate | $16.16 | View Details |
| | MCP16311-E/MS | IC REG BUCK ADJ 1A 8MSOP | Step-Down | Positive | Buck | 3052 - Immediate | $16.16 | View Details |
Passive and Interconnect Parts from Würth Elektronik
| Image | Manufacturer Part Number | Description | Type | Material - Core | Inductance | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
|  | 74438356150 | FIXED IND 15UH 2.1A 230 MOHM SMD | Molded | Iron Alloy | 15 µH | 12049 - Immediate | $19.14 | View Details |
|  | 7443844020047 | FIXED IND 4.7UH 5.2A 46.4 MOHM | Molded | Iron | 4.7 µH | 962 - Immediate | $17.88 | View Details |
|  | 744393305100 | FIXED IND 10UH 5A 43.08 MOHM SMD | Molded | Metal Composite | 10 µH | 0 - Immediate | $28.62 | View Details |
|  | 691210910004 | TERM BLOCK 4P HORIZON 2.54MM PCB | 1 | 4 | 0.100" (2.54mm) | 2443 - Immediate | $16.25 | View Details |
|  | 885012207128 | CAP CER 0.1UF 100V X7R 0805 | 0.1 µF | ±10% | 100V | 22306 - Immediate | $0.99 | View Details |
|  | 560112116004 | RES 100K OHM 1% 1/10W 0603 | 100 kOhms | ±1% | 0.1W, 1/10W | 0 - Immediate | $0.90 | View Details |
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