MCP1631HV-500E/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP1631HV-500E/SS is a high-voltage current-mode PWM switching controller IC from Microchip in a 20-pin SSOP package. It supports 3.5 V to 16 V input and integrates a high-speed PWM comparator for peak current-mode control at up to 500 kHz switching frequency. Designed for DC-DC buck, boost, and flyback converters in portable and industrial power supply applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP1631HV-500E/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4500(MOQ 67)
- 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 MCP1631HV-500E/SS?
- Current-mode PWM control at up to 500 kHz for compact magnetics and fast transient response
- 3.5 V to 16 V input range covers single-cell Li-ion through 12 V automotive and industrial rails
- Integrated high-speed PWM comparator enables precise cycle-by-cycle peak current limiting
- Flexible topology support for buck, boost, flyback, and SEPIC converter designs
- 20-pin SSOP package balances compact footprint with access to compensation and feedback pins
What is MCP1631HV-500E/SS used for?
MCP1631HV-500E/SS is used in portable power supplies, Li-ion battery chargers, and DC-DC converter modules where compact magnetics and tight current regulation at up to 500 kHz are required. It suits industrial equipment power stages operating from 12 V bus rails that demand cycle-by-cycle overcurrent protection via current-mode control. The device is also chosen for custom flyback and SEPIC topologies in cost-sensitive designs where a configurable PWM controller replaces fixed-function ICs.
What are the specifications of MCP1631HV-500E/SS?
| Pbfree Code | Yes |
| Manufacturer Package Code | SSOP-20 |
| Factory Lead Time | 4Weeks |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 3.5V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.25A |
| Output Voltage-Max | 5.15V |
| Output Voltage-Min | 4.85V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 2000kHz |
| 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 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP1631HV-500E/SS datasheet?
MCP1631HV-500E/SS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1631HV-500E/SS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What switching frequency can MCP1631HV-500E/SS achieve in a buck converter design?
MCP1631HV-500E/SS supports switching frequencies up to 500 kHz, which allows use of inductors below 10 µH and capacitors under 47 µF in a typical 5 V to 3.3 V buck stage. Operating at 500 kHz reduces magnetic component size by roughly 4× compared to a 100 kHz design, making it well suited for compact portable power modules with a 3.5 V to 16 V input range.
How does the current-mode control architecture of MCP1631HV-500E/SS improve converter reliability?
Current-mode PWM control provides cycle-by-cycle peak current limiting, preventing inductor saturation and switch device overstress in the event of an output short circuit. This protection is active on every switching cycle at frequencies up to 500 kHz, protecting the power stage against transients and start-up inrush events without requiring additional external current sense circuitry beyond a sense resistor in the 3.5 V to 16 V input supply rail.
Which converter topologies are compatible with MCP1631HV-500E/SS and what design flexibility does this provide?
The device supports buck, boost, flyback, and SEPIC converter topologies through its configurable compensation and gate drive pins in the 20-pin SSOP package. This flexibility allows a single part number to replace topology-specific controllers across a product family, reducing SKU count and simplifying procurement for designs spanning 3.5 V to 16 V input ranges and output power levels from below 1 W to tens of watts.
How does MCP1631HV-500E/SS compare to MCP1631-500E when input voltage exceeds 7 V?
The HV variant extends the rated input voltage to 16 V versus the standard MCP1631-500E's 7 V maximum, enabling direct operation from a 12 V automotive or industrial bus without a pre-regulator stage. This saves one power conversion stage, improving overall efficiency by 2% to 5% and reducing component count by 4 to 6 parts in designs where the input rail fluctuates between 9 V and 16 V.
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