MCP16311-E/MS Microchip Power Supply (Small Outline Packages) In Stock
The Microchip MCP16311-E/MS is a current-mode PWM step-down switching regulator delivering up to 1 A output current with an adjustable output voltage from 2 V to 24 V. It accepts input voltages from 4.4 V to 30 V and employs PFM at light loads for improved efficiency in an 8-pin MSOP package. The device is designed for battery-powered portables, industrial sensors, and 12 V rail step-down conversion applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP16311-E/MS Datasheet PDF
- Category
- Power Supply
- Price
- From $0.9099(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 MCP16311-E/MS?
- Current-mode PWM control with PFM at light loads for high efficiency across the full load range
- Wide input voltage range of 4.4 V to 30 V covers automotive 12 V, industrial 24 V, and USB power inputs
- Adjustable output voltage from 2 V to 24 V set by external resistor divider
- 1 A peak output current supports a broad range of MCU, sensor, and peripheral loads
- Compact 8-pin MSOP package minimizes PCB footprint for space-constrained power supply designs
- 12-week factory lead time; plan procurement accordingly for volume production builds
What is MCP16311-E/MS used for?
The MCP16311-E/MS is used in portable instruments, IoT sensors, and industrial field devices where a 12 V or 24 V rail must be stepped down to a regulated 3.3 V or 5 V supply at up to 1 A with high light-load efficiency. It also serves automotive accessory electronics and smart-meter power supply stages where the wide 4.4 V to 30 V input range and PFM standby mode extend battery or capacitor hold-up time.
What are the specifications of MCP16311-E/MS?
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 12Weeks |
| YTEOL | 14 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 2 TO 24V; ALSO REQUIRE PFM CONTROL TECHNIQUE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 4.4V |
| Input Voltage-Nom | 7V |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Max | 24V |
| Output Voltage-Min | 2V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100; TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 575kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| ## MCP16311-E/MS Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP16311-E/MS datasheet?
MCP16311-E/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP16311-E/MS?
Compatible alternatives and drop-in replacements for MCP16311-E/MS:
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suggested
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Frequently Asked Questions
What input and output voltage range does MCP16311-E/MS support in a buck converter design?
The MCP16311-E/MS accepts input voltages from 4.4 V to 30 V and provides an adjustable output from 2 V to 24 V, making it compatible with 5 V USB, 12 V automotive, and 24 V industrial supply rails. The 1 A output current covers most MCU and sensor loads in embedded power supply designs.
How does the PFM control mode in MCP16311-E/MS improve efficiency at light loads?
At light loads below a few tens of milliamps, the MCP16311-E/MS automatically transitions from PWM to pulse-frequency modulation (PFM), reducing switching losses and quiescent current draw. This can cut idle power consumption by more than 50% compared to fixed-frequency PWM operation, extending battery life in IoT nodes and portable instruments spending most of their time in standby.
For an industrial sensor powered from a 24 V rail, what external components does MCP16311-E/MS require to set the output to 3.3 V?
To set the output to 3.3 V from a 24 V input, the MCP16311-E/MS requires an external resistor divider from the output to the feedback pin, an inductor (typically 4.7 µH to 22 µH), and input and output filter capacitors. The total external component count is typically 5 to 7 passive parts, making the solution compact enough for small 8-pin MSOP PCB layouts.
What procurement lead time should buyers plan for MCP16311-E/MS, and are there volume stocking strategies to consider?
Microchip lists a 12-week factory lead time for MCP16311-E/MS, which is longer than many standard analog ICs. Procurement teams building products in volumes of 500 units or more should place orders at least 12 to 16 weeks before the production start date and evaluate distributor buffer stock or blanket orders to reduce exposure to lead-time variability.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9099 | $0.91 |
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