MCP19119-E/MQ Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip MCP19119-E/MQ is a programmable analog-based synchronous buck controller with integrated gate drivers and digital interface in a 28-pin QFN package. It supports wide input voltage ranges for point-of-load power conversion in servers, industrial equipment, and telecom power systems. TS 16949 screened with 6-week factory lead time for automotive and industrial applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- MCP19119-E/MQ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8700(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP19119-E/MQ?
- Programmable analog synchronous buck controller with integrated high- and low-side gate drivers
- Digital PMBus or I2C interface for firmware-controlled voltage margining and telemetry
- 28-pin QFN package with exposed thermal pad for efficient heat dissipation
- TS 16949 automotive-grade screening for quality-critical industrial and automotive designs
- Wide input voltage range enabling 12 V to 48 V bus point-of-load conversion
What is MCP19119-E/MQ used for?
The MCP19119-E/MQ is used in server power distribution boards, industrial motor controllers, and telecom base station power supplies where a digitally configurable synchronous buck converter with PMBus telemetry is required. Its integrated gate drivers and analog control loop enable high-efficiency point-of-load designs in dense multi-rail power architectures, reducing external component count in space-constrained 28-pin QFN footprints.
What are the specifications of MCP19119-E/MQ?
| Manufacturer Package Code | QFN-28 |
| Factory Lead Time | 6Weeks |
| YTEOL | 14 |
| JESD-30 Code | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.20SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Screening Level | TS 16949 |
| Supply Voltage-Max | 40V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | SWITCHING CONTROLLER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP19119-E/MQ datasheet?
MCP19119-E/MQ Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP19119-E/MQ?
Compatible alternatives and drop-in replacements for MCP19119-E/MQ:
Switching Controller, Current-mode, 1600kHz Switching Freq-Max, PQCC28
Frequently Asked Questions
What makes MCP19119-E/MQ suitable for multi-phase server power supply designs operating from a 12 V rail?
The MCP19119-E/MQ integrates a synchronous buck controller with internal gate drivers capable of handling a 12 V input bus, enabling direct point-of-load conversion for CPU and FPGA rails. Its digital interface allows multi-phase current balancing and voltage margining via PMBus commands, and the 28-pin QFN package with thermal slug supports the power densities required in 1 U server power distribution boards.
How does the digital programmability of MCP19119-E/MQ reduce time-to-market for power supply designs?
The MCP19119-E/MQ uses a programmable analog control loop where switching frequency, soft-start time, output voltage, and current limit thresholds are set via I2C or PMBus register writes rather than discrete resistor and capacitor networks. This allows engineers to iterate on power supply parameters in firmware during bring-up, reducing PCB respins for component value adjustments and cutting prototyping cycles by several weeks.
What thermal management approach is recommended for MCP19119-E/MQ in high-density industrial enclosures?
The MCP19119-E/MQ QFN-28 package includes an exposed thermal pad on the bottom surface that should be soldered to a copper ground pour with thermal vias connecting to inner copper planes. For designs dissipating more than 2 W at the junction, a minimum 4-layer PCB with multiple 0.3 mm thermal vias under the pad is recommended to keep junction temperature below the rated maximum for TS 16949 automotive-screened applications.
What lead time and automotive qualification data should procurement teams verify for MCP19119-E/MQ?
The MCP19119-E/MQ has a factory lead time of approximately 6 weeks and is screened to TS 16949 automotive quality standards. Procurement teams sourcing for automotive or high-reliability industrial builds should request certificate of conformance documentation and lot traceability records from authorized distributors. The QFN-28 package is supplied in tape-and-reel with a standard 3,000-unit reel count for SMT assembly production lines.
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| 10+ | $0.9200 | $9.20 |
| 25+ | $0.8700 | $21.75 |
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