MCP4531-503E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4531-503E/MS is a single-channel 128-step 50 kΩ digital potentiometer from Microchip with I2C interface, non-volatile wiper memory, operating from 2.7 V to 5.5 V. From $0.90 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4531-503E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5660(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 MCP4531-503E/MS?
- Single-channel digital potentiometer with 128 wiper positions
- 50 kΩ end-to-end resistance (also available in 5 kΩ and 10 kΩ variants)
- I2C 2-wire serial interface for easy microcontroller integration
- Non-volatile wiper position storage retains setting after power loss
- Wide 2.7 V to 5.5 V supply voltage range
- MSOP-8 compact package for space-constrained designs
What is MCP4531-503E/MS used for?
MCP4531-503E/MS is used for digitally adjustable gain control, offset calibration, and voltage-divider trimming in precision analog circuits. It suits LCD brightness control, sensor signal conditioning, and audio volume adjustment where a 50 kΩ range and 128 steps deliver sufficient resolution. The non-volatile memory makes it ideal for factory calibration workflows where wiper settings must survive power cycles without a host MCU.
What are the specifications of MCP4531-503E/MS?
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 25Weeks |
| YTEOL | 9 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 2kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| 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 |
| Total Resistance-Nom | 100000Ω |
| 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 |
Where can I find the MCP4531-503E/MS datasheet?
MCP4531-503E/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4531-503E/MS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many discrete resistance steps does the MCP4531-503E/MS provide, and what is the smallest resistance increment achievable?
The MCP4531-503E/MS offers 128 wiper positions across a 50 kΩ end-to-end resistance, yielding a resolution of approximately 390 Ω per step. This fine-grained 390 Ω increment is sufficient for precision gain trimming in instrumentation amplifier circuits where 0.78% full-scale accuracy is needed per step.
Does the MCP4531-503E/MS retain its wiper position after power is removed, and how is the setting restored on power-up?
Yes, the device stores the wiper position in non-volatile EEPROM memory, so the last programmed 50 kΩ setting is automatically restored at power-up without any I2C transaction. The device supports at least 100,000 write cycles to non-volatile memory, ensuring long service life in applications that frequently update calibration coefficients.
For a 3.3 V microcontroller-based design, how does the MCP4531-503E/MS interface electrically without additional level translation?
The MCP4531-503E/MS operates from 2.7 V to 5.5 V and its I2C pins are directly compatible with 3.3 V logic levels, eliminating any level-translation circuitry. The 2-wire I2C interface requires only SDA and SCL connections with 4.7 kΩ pull-up resistors to the 3.3 V rail, keeping the BOM minimal and the MSOP-8 footprint under 3 mm × 3 mm.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7730 | $0.77 |
| 25+ | $0.7000 | $17.50 |
| 100+ | $0.6400 | $64.00 |
| 1000+ | $0.6100 | $610.00 |
| 7500+ | $0.5680 | $4260.00 |
| 10000+ | $0.5660 | $5660.00 |
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