MCP1650S-E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP1650S-E/MS is a current-mode PWM boost switching controller from Microchip with 2.7 V to 5.5 V input range, 2.55 V UVLO threshold, and an 8-pin MSOP package, designed for LED drivers and white-LED backlight boost converters in portable and battery-powered applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1650S-E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0500(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
- Current-mode PWM boost control topology for inherent cycle-by-cycle current limiting
- Input voltage range: 2.7 V to 5.5 V — compatible with Li-Ion and alkaline batteries
- 2.55 V under-voltage lockout (UVLO) prevents brownout operation
- Adjustable switching frequency via external resistor for EMI optimization
- 8-pin MSOP package for compact portable LED driver designs
- Supports LED string boost applications up to tens of volts output
Applications
The MCP1650S-E/MS is primarily used in white LED backlighting for small LCD panels in handheld devices, cameras, and portable medical monitors. Its current-mode PWM control enables stable LED brightness regulation across a wide load range while the 2.7 V minimum input allows operation from nearly depleted single-cell or two-cell alkaline batteries. The device is also suited for solar-harvesting LED systems and 5 V input boost converters generating higher voltage rails for analog circuits.
Specifications
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 11Weeks |
| 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 | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the MCP1650S-E/MS support, and what UVLO threshold protects the circuit during low-battery conditions?
The MCP1650S-E/MS operates from 2.7 V to 5.5 V, covering single-cell Li-Ion batteries and 3.3 V or 5 V regulated rails. A 2.55 V under-voltage lockout (UVLO) shuts down the controller before the battery voltage drops too low, preventing unstable switching and protecting both the inductor and LED load.
How does current-mode PWM control in this boost controller improve LED brightness stability compared to voltage-mode designs?
Current-mode PWM control senses the inductor peak current every switching cycle and adjusts the duty cycle accordingly, providing inherent cycle-by-cycle current limiting and faster transient response. For LED drivers, this means the LED current remains stable even as the battery voltage drops from 4.2 V to 2.7 V, maintaining consistent brightness without a separate current-regulation loop.
For a compact camera backlight PCB, how does the 8-pin MSOP package of the MCP1650S-E/MS compare in footprint to the standard SOIC-8 alternative?
The MSOP-8 package occupies roughly 4.9 mm × 3.0 mm, which is about 60% smaller in area than the standard SOIC-8 at 4.9 mm × 3.9 mm, freeing meaningful board space in cameras and small handheld devices. The smaller pitch also reduces parasitic lead inductance, which benefits high-frequency switching at several hundred kilohertz.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0300 | $2.03 |
| 4+ | $1.3608 | $5.44 |
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| 16+ | $1.3215 | $21.14 |
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