MCP16251T-I/MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
MCP16251T-I/MNY is a low quiescent current PWM boost switching regulator from Microchip with true output disconnect and a startup voltage as low as 0.82 V, packaged in a compact TDFN-8 for single-cell battery and energy harvesting applications.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP16251T-I/MNY Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1460(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Startup from input voltages as low as 0.82 V, typical nominal 1.5 V input for single-cell operation
- True output disconnect prevents battery drain through the inductor during shutdown
- Ultra-low quiescent current for maximum efficiency in light-load and sleep-mode designs
- PWM control technique with regulated output voltage for stable boost conversion
- 8-lead TDFN package (3 mm × 2 mm) for space-constrained PCB layouts
- JESD-609 e4 moisture rating for reliable SMT assembly
- Industrial temperature range -40°C to +85°C for broad application coverage
Applications
MCP16251T-I/MNY is optimized for single-cell alkaline, NiMH, or lithium battery-powered devices such as wireless sensor nodes, Bluetooth beacons, and wearable health monitors where the converter must start reliably from a near-depleted cell below 1 V. Its true output disconnect feature is particularly valuable in always-on IoT devices that need to fully cut output power during deep-sleep states without leakage current paths draining the battery.
Specifications
| Manufacturer Package Code | TDFN-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Analog IC - Other Type | BATTERY CHARGE CONTROLLER |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Min | 0.82V |
| Input Voltage-Nom | 1.5V |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 1.8V |
| Output Voltage-Nom | 3.3V |
| 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 | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 575kHz |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP16251T-I/MNY:
Frequently Asked Questions
What is the minimum input voltage at which MCP16251T-I/MNY can start up from a depleted alkaline cell?
MCP16251T-I/MNY is specified to start up from input voltages as low as 0.82 V, well below the 0.9 V to 1.0 V end-of-life threshold of most alkaline and NiMH single cells, enabling the host system to extract the maximum usable energy from the battery before a low-voltage lockout condition is triggered.
How does the true output disconnect feature of MCP16251T-I/MNY protect battery life in sleep-mode IoT designs?
True output disconnect uses an internal switch to completely isolate the output capacitor and load from the input when the regulator is disabled, eliminating the reverse current path through the inductor and boost diode that would otherwise drain 1 µA to 10 µA from the battery during deep-sleep periods and significantly reduce the usable runtime of coin cells or AA batteries.
For a wireless sensor node PCB, what footprint does the TDFN-8 package of MCP16251T-I/MNY occupy?
The TDFN-8 package measures 3 mm × 2 mm with 8 leads on a 0.5 mm pitch and an exposed thermal pad, occupying minimal PCB area that is well suited to compact IoT sensor boards where the boost converter, inductor, and output capacitors must fit within a few square centimetres alongside the radio and MCU.
Is MCP16251T-I/MNY suitable for energy harvesting designs powered by thermoelectric generators or small solar panels?
Yes, the 0.82 V startup threshold and ultra-low quiescent current make MCP16251T-I/MNY a strong candidate for energy harvesting from thermoelectric generators (TEGs) producing 1 V to 2 V or small solar cells with limited short-circuit current, as the regulator can efficiently boost these low-voltage, low-current sources to a regulated 3.3 V or 5 V rail for the application load.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8100 | $0.81 |
| 3+ | $0.6086 | $1.83 |
| 500+ | $0.1509 | $75.45 |
| 1000+ | $0.1485 | $148.50 |
| 3000+ | $0.1460 | $438.00 |
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