MCP16311-MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
The MCP16311-MNY is a 30V input, 1A synchronous step-down DC-DC converter from Microchip with integrated high- and low-side switches for high efficiency across a wide load range. It features adjustable output voltage and operates in PFM at light loads. Ideal for industrial 24V systems, battery-powered IoT devices, and embedded processor supply rails.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- MCP16311-MNY Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 30V maximum input voltage with integrated synchronous switches delivering up to 1A output current for 24V industrial bus designs
- PFM light-load operation maintaining high efficiency at currents well below 100 mA for battery-powered IoT and wearable applications
- Adjustable output voltage from 0.8V enabling precise supply rails for modern microcontrollers and FPGAs
- Compact Small Outline No-lead (SON) package reducing PCB footprint in space-constrained embedded designs
Applications
The MCP16311-MNY is widely used in industrial sensor nodes and PLCs powered from 24V bus rails, stepping down to 3.3V or 5V logic supplies with minimal external components. Its light-load PFM mode and 30V input capability also make it suitable for battery-backed IoT gateways and remote metering equipment that must sustain low quiescent draw during sleep intervals. Embedded system designers additionally use it to generate precise sub-1V core voltages for low-power microcontrollers and FPGAs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP16311-MNY:
Switching Regulator, Current-mode, 575kHz Switching Freq-Max, PDSO8
Frequently Asked Questions
How does the MCP16311-MNY maintain efficiency when the output load drops below 100 mA in a 24V industrial sensor node?
Below light-load thresholds, the MCP16311-MNY transitions from PWM to PFM control, reducing switching losses so that efficiency remains above 75% even at standby currents in the single-digit milliamp range from a 24V input rail, extending battery life significantly.
What output voltage range can the MCP16311-MNY regulate from a 12V or 24V industrial bus?
The output voltage is adjustable down to 0.8V via an external resistor divider, allowing the MCP16311-MNY to generate any rail from 0.8V to within the input range, covering 1.0V core, 1.8V, 2.5V, 3.3V, and 5V system rails from a 24V or 12V industrial supply.
For a remote IoT gateway running from a 24V SCADA bus, how many external components does the MCP16311-MNY require?
A typical MCP16311-MNY application needs only an external inductor (typically 10 µH), two ceramic output capacitors, and two feedback resistors, keeping BOM count under 10 parts for a complete 24V-to-3.3V, 1A regulated supply on a compact PCB.
When would a designer select the MCP16311-MNY over a non-synchronous buck regulator for a 24V-to-5V power stage?
The integrated synchronous low-side switch eliminates the need for an external Schottky diode, improving efficiency by up to 5% at 1A output and reducing component count by 1 part, making the MCP16311-MNY more cost-effective for 24V-to-5V designs in high-volume industrial production.
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