MCP1651R-E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP1651R-E/MS is a current-mode PWM boost controller with low battery UVLO at 2V, operating from 2.7V to 5.5V input. Features MSOP-8 package. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1651R-E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4300(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 MCP1651R-E/MS?
- Current-mode PWM control for stable boost regulation with 2.7V to 5.5V input range
- Low battery UVLO threshold at 2V prevents operation under severely discharged conditions
- Compact MSOP-8 package enables space-efficient PCB layouts in portable and battery-powered designs
- Supports 3.3V nominal input for seamless integration with single-cell Li-ion and alkaline battery systems
What is MCP1651R-E/MS used for?
MCP1651R-E/MS is well suited for battery-powered portable electronics requiring boost conversion from single or dual-cell battery stacks. It fits handheld instruments, IoT sensor nodes, and wireless modules where input voltages can sag to 2.7V. Its compact MSOP-8 footprint makes it a natural choice for space-constrained PCBs needing stable regulated output from a declining battery.
What are the specifications of MCP1651R-E/MS?
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 17Weeks |
| YTEOL | 8 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 3.3V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Max | 100V |
| Output Voltage-Min | 3.3V |
| 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 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 850kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP1651R-E/MS datasheet?
MCP1651R-E/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1651R-E/MS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range supported by MCP1651R-E/MS?
MCP1651R-E/MS operates from a minimum input voltage of 2.7V up to 5.5V, with a nominal design point of 3.3V. This 2.7V to 5.5V range makes it suitable for single-cell Li-ion and dual-cell alkaline battery applications where supply voltage varies significantly during discharge.
At what voltage does the MCP1651R-E/MS low-battery UVLO trigger?
The under-voltage lockout (UVLO) threshold activates at 2V, shutting down the controller to protect downstream circuitry from erratic behavior when the battery is severely discharged. This 2V trip point ensures the converter stops switching before input voltage drops to unusable levels.
Which PCB form factors benefit most from the MSOP-8 package of MCP1651R-E/MS?
The MSOP-8 package measures approximately 3.0mm x 3.0mm, making it ideal for compact wearable devices, IoT sensor modules, and portable medical equipment where board space is limited. Its 8-pin small-outline profile allows tight component placement alongside passives and inductors in a minimal footprint.
How does the current-mode PWM control technique in MCP1651R-E/MS improve converter stability?
Current-mode pulse-width modulation directly senses inductor current each switching cycle, providing inherent cycle-by-cycle current limiting and faster transient response compared to voltage-mode control. This technique simplifies loop compensation and improves line regulation across the 2.7V to 5.5V input range, benefiting designs with rapidly changing load currents.
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