MIC2251YML-TR Microchip Integrated Circuit (Small Outline No-lead) In Stock
MIC2251YML-TR is a high-efficiency, low-EMI current-mode boost regulator from Microchip operating from 2.5 V to 5.5 V input with pulse frequency modulation control in a compact VDFN-8 package. It delivers regulated output at up to 3.6 V nominal with 29 configurable parameters suited for portable and battery-powered designs. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MIC2251YML-TR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2580(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 MIC2251YML-TR?
- Current-mode pulse frequency modulation (PFM) control minimizes switching losses and EMI across the 2.5 V to 5.5 V input range
- Ultra-compact VDFN-8 (Small Outline No-lead) package enables space-saving PCB layouts for portable electronics
- Wide input voltage range of 2.5 V to 5.5 V supports single-cell Li-Ion and dual-cell alkaline battery applications
What is MIC2251YML-TR used for?
MIC2251YML-TR suits battery-powered portable devices such as wearables, IoT sensor nodes, and handheld instruments that require a boost converter to generate a stable regulated output from a single-cell lithium-ion or alkaline battery. Its low-EMI pulse frequency modulation switching architecture makes it appropriate for noise-sensitive applications including wireless communication modules and audio peripherals. The VDFN-8 package keeps PCB area to a minimum, benefiting compact consumer electronics and medical monitoring devices.
What are the specifications of MIC2251YML-TR?
| Manufacturer Package Code | VDFN-8 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 8Weeks |
| YTEOL | 13 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE FREQUENCY MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 3.5A |
| Output Voltage-Max | 37V |
| Output Voltage-Nom | 15V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.08,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| 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 | Mainland China, Malaysia |
Where can I find the MIC2251YML-TR datasheet?
MIC2251YML-TR Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MIC2251YML-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of MIC2251YML-TR and what battery chemistries does it support?
MIC2251YML-TR operates from 2.5 V to 5.5 V input, covering single-cell Li-Ion batteries (nominally 3.6 V) and dual-cell alkaline batteries. This 3 V span makes it compatible with any primary or rechargeable cell that stays within these 2 input limits during its discharge cycle.
How does the current-mode PFM control in MIC2251YML-TR reduce EMI compared with fixed-frequency PWM regulators?
Pulse frequency modulation (PFM) varies switching frequency rather than duty cycle, so energy packets are delivered on demand. This spreads switching harmonics across a broad spectrum instead of concentrating them at a fixed frequency, resulting in lower peak EMI emissions. The MIC2251YML-TR achieves high efficiency especially at light loads below 50 mA where PFM skips cycles entirely.
Which compact PCB designs benefit from the VDFN-8 package of MIC2251YML-TR?
The VDFN-8 Small Outline No-lead package measures approximately 2 mm x 2 mm, making MIC2251YML-TR ideal for wearables, IoT nodes, and medical patches where board area is under 100 mm2. Its exposed pad also improves thermal dissipation, supporting continuous output currents without a large heatsink.
When should a designer choose MIC2251YML-TR over a fixed-frequency PWM boost converter for a 3.3 V rail design?
MIC2251YML-TR is preferred when load current is typically below 200 mA and battery life is critical, because PFM control delivers efficiency above 85% at light loads where PWM efficiency drops sharply. Fixed-frequency PWM converters are better when strict EMI band-plan constraints require a known single switching frequency, for example in GPS receivers with 1575 MHz sensitivity requirements.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2580 | $0.26 |
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