MCP16311T-E/MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
The MCP16311T-E/MNY is a step-down DC-DC switching regulator from Microchip supporting 4.4 V to 30 V input and 1 A output current with an adjustable output range of 2 V to 24 V. Using current-mode PWM plus PFM control in an 8-pin TDFN package, it delivers high efficiency across light and heavy loads in space-constrained designs.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP16311T-E/MNY Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4200(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide input voltage range of 4.4 V to 30 V covering 5 V, 12 V, and 24 V industrial power rails
- 1 A continuous output current with adjustable output from 2 V to 24 V via external resistor divider
- Dual-mode current-mode PWM and PFM control for high efficiency at both heavy and light loads
- Compact 8-pin TDFN (2 mm x 3 mm) package with exposed thermal pad for low-profile PCB designs
- Nominal 7 V input design point with robust 30 V absolute maximum input rating
- Factory lead time of approximately 7 weeks supporting standard production planning cycles
Applications
The MCP16311T-E/MNY is designed for distributed point-of-load power conversion in industrial equipment, IoT devices, and battery-powered instruments powered from 12 V or 24 V bus rails. Its PFM mode extends battery life in light-load scenarios while PWM mode maintains tight regulation at full 1 A load, making it suitable for sensor nodes, portable test equipment, and automotive accessory regulators.
Specifications
| Manufacturer Package Code | TDFN-8 |
| Factory Lead Time | 7Weeks |
| 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 | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Voltage-Max | 24V |
| Output Voltage-Min | 2V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| 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 | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| ## MCP16311T-E/MNY Alternates Showing results | Image |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP16311T-E/MNY:
Frequently Asked Questions
What input voltage range does MCP16311T-E/MNY support and can it operate on a 24 V industrial supply?
MCP16311T-E/MNY accepts 4.4 V to 30 V input, so a 24 V industrial rail is fully supported with 6 V of headroom below the 30 V absolute maximum; it can step down to any adjustable output from 2 V to 24 V at up to 1 A, making it a direct point-of-load solution for 24 V industrial sensor and control boards.
How does the combined PWM and PFM control improve efficiency of MCP16311T-E/MNY in battery-powered designs?
At light loads below approximately 30 mA, MCP16311T-E/MNY automatically transitions from PWM to pulse-frequency modulation (PFM), reducing switching losses and quiescent current to extend battery run time; at heavier loads it reverts to current-mode PWM for tight 1 A regulation with fast transient response.
What is the minimum achievable output voltage and how is it set with external components?
The adjustable output can be set as low as 2 V using a two-resistor feedback divider connected between the output, FB pin, and ground; selecting 1% tolerance resistors keeps output accuracy within 1% of the target, supporting 3.3 V, 5 V, or any custom voltage up to 24 V at 1 A load.
What thermal benefits does the TDFN-8 exposed-pad package provide for MCP16311T-E/MNY in high-current operation?
The 8-pin TDFN package (2 mm x 3 mm body) includes an exposed thermal pad that, when soldered to a PCB copper pour, provides a junction-to-board thermal resistance significantly lower than equivalent SOT-23 devices; this allows the 1 A rated output to be sustained across -40°C to +125°C junction temperature without an external heatsink in typical PCB layouts.
How does MCP16311T-E/MNY compare to MCP16331T-E/CH when selecting a buck regulator for a 24 V industrial design?
MCP16331T-E/CH supports up to 50 V input and 1.2 A output but uses a 6-pin SOT-23 package without PFM; MCP16311T-E/MNY is limited to 30 V input and 1 A but adds PFM light-load efficiency and an 8-pin TDFN thermal pad, making it the better choice when load current varies widely between 10 mA and 1 A on a 24 V rail.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
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