MCP1631HV-330E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP1631HV-330E/ST is a high-voltage, high-speed current-mode PWM switching controller with 3.3 V reference, 3.5–16 V input range, and TSSOP-20 package. Designed for compact, efficient DC-DC conversion in embedded power applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP1631HV-330E/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5100(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 control with high-speed response supports switching frequencies up to several MHz, reducing external inductor and capacitor size
- Wide 3.5 V to 16 V input range with 3.3 V internal reference accommodates 5 V and 12 V bus systems in industrial and telecom power designs
- Compact TSSOP-20 package enables tight PCB integration alongside microcontrollers and FPGAs requiring a regulated local power rail
Applications
The MCP1631HV-330E/ST is used in compact DC-DC converter modules for FPGA and DSP core voltage rails, where current-mode PWM control delivers fast transient response to dynamic load steps of several amperes in microseconds. It is also applied in battery-powered industrial instruments and portable test equipment that operate from 3.5–16 V input sources, leveraging the HV tolerant design to handle a wide battery discharge range while maintaining a stable 3.3 V output.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-20 |
| Factory Lead Time | 11Weeks |
| 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 | 3.399V |
| Output Voltage-Min | 3.201V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| 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 | SINGLE |
| Switching Frequency-Max | 2000kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| 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 | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What control mode does the MCP1631HV-330E/ST implement, and why does it benefit point-of-load power designs?
The MCP1631HV-330E/ST uses current-mode PWM control, which senses inductor current cycle-by-cycle and feeds it back to the modulator. This technique provides inherent overcurrent limiting, faster line transient response compared to voltage-mode designs, and simpler loop compensation. In point-of-load converters powering FPGA core voltages with load steps exceeding 1 A in under 1 µs, current-mode control keeps the output within tight voltage regulation windows without large output capacitor banks.
What input voltage range does the MCP1631HV-330E/ST support, and what system bus voltages does this cover?
The controller accepts input voltages from 3.5 V minimum to 16 V maximum, with a nominal 5 V design point. This range covers a 5 V USB or logic supply, a 12 V industrial rail, and intermediate voltages such as a partially discharged 9 V alkaline or 3-cell Li-ion pack at around 10–12 V, making a single design compatible across multiple power architectures without redesigning the controller stage.
How does the 3.3 V reference of the MCP1631HV-330E/ST influence the output voltage setting in a buck converter design?
The 3.3 V internal reference sets the feedback target for the error amplifier, allowing the output voltage to be programmed to 3.3 V directly with equal feedback resistors or to other voltages using a standard resistor divider from the output to the feedback pin. At 3.3 V output from a 5 V input in a synchronous buck stage switching at 500 kHz, a typical design achieves 90–93% efficiency while maintaining regulation within ±1% across a 0.5 A to 3 A load range.
For a 12 V to 3.3 V industrial power module, what makes the MCP1631HV-330E/ST preferable to a fixed-frequency analog controller?
The MCP1631HV-330E/ST's high-voltage tolerance up to 16 V handles input transients that would damage lower-rated controllers, while the high-speed current-mode architecture allows switching at elevated frequencies to shrink the 10 µH output inductor down to 2–3 µH. The TSSOP-20 package and Microchip's application circuits reduce the number of external timing and compensation components compared to older fixed-frequency analog controllers, cutting total module size by roughly 30–40% in volume-sensitive industrial boards.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
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