MAX20331EWL+ Analog Devices Integrated Circuit (BGA) In Stock
Analog Devices MAX20331EWL+ is a high-voltage overvoltage protection IC for 3.5 mm audio lines, guarding against transient voltages up to ±30 V in smartphones and portable audio devices. Packaged in a 9-bump WLCSP, it integrates single-channel audio line OVP in minimal board space. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- MAX20331EWL+ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX20331EWL+?
- Single-channel 3.5 mm audio line overvoltage protection supporting transient voltages up to ±30 V, safeguarding audio circuitry from ESD and connector insertion events
- 9-bump WLCSP (wafer-level chip-scale package) measuring under 1.2 mm × 1.2 mm for ultra-compact PCB integration in smartphones and wearables
- Under/overvoltage supervisor function with no external resistors required — fixed threshold simplifies design and reduces BOM components
What is MAX20331EWL+ used for?
The MAX20331EWL+ is designed to protect 3.5 mm audio jack circuitry in smartphones, tablets, and portable media players from hazardous overvoltage events caused by ESD, connector hotplug, or accidental connection to high-voltage sources up to ±30 V. Its WLCSP package suits placement directly adjacent to the audio jack on space-constrained mobile PCBs. The device is also applicable in headset amplifiers and hearing instruments where audio line protection is mandated.
What are the specifications of MAX20331EWL+?
| Manufacturer Package Code | 9-WLCSP-N/A |
| Date Of Intro | 2018-09-06 |
| YTEOL | 10 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | UNDER/OVERVOLTAGE SUPERVISOR |
| JESD-30 Code | S-PBGA-B9 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.6V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin/Silver/Copper/Nickel (Sn/Ag/Cu/Ni) |
| Terminal Form | BALL |
| Terminal Pitch | 0.4mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
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 | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX20331EWL+ datasheet?
MAX20331EWL+ Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX20331EWL+?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What overvoltage level can the MAX20331EWL+ withstand on a 3.5 mm audio line?
The MAX20331EWL+ protects 3.5 mm audio lines against transient overvoltage events up to ±30 V, clamping hazardous potentials before they reach the audio codec or amplifier IC, ensuring circuit protection from accidental high-voltage connector contact in smartphones and portable devices.
How small is the MAX20331EWL+ package, and why does that matter for mobile PCB design?
The MAX20331EWL+ uses a 9-bump WLCSP package with dimensions under 1.2 mm × 1.2 mm, enabling placement within 1 mm of the audio connector on the PCB. This ultra-compact footprint is critical in smartphones and wearables where every square millimeter of board area is constrained.
Does the MAX20331EWL+ require external threshold-setting resistors to configure the overvoltage trip point?
No, the MAX20331EWL+ uses fixed internal thresholds for both under-voltage and overvoltage supervision — no external resistors are needed. This fixed-threshold architecture reduces the 3.5 mm audio line protection BOM to a single 9-bump WLCSP IC, saving design time and assembly cost.
In which consumer products is the MAX20331EWL+ audio line OVP IC typically used?
The MAX20331EWL+ is commonly specified in smartphones, tablets, wireless earbuds, and portable media players with 3.5 mm audio jacks. It is also used in hearing instruments and headset amplifiers where IEC 61000-4-2 ESD protection and accidental overvoltage protection of up to ±30 V is required on audio signal lines.
Related Guides
TLV76033 Selection Guide: Headroom, Heat, and Sourcing
Choose a TLV76033 3.3-V supply using manufacturer ratings, load profiles, dropout calculations, thermal checks, and exact orderable parts.
Nov 14, 2026
DP83TG720SWRHATQ1 Automotive Ethernet Board Design Guide
A practical DP83TG720SWRHATQ1 board checklist for host interfaces, startup, channel validation, qualified variants, and sourcing.
Nov 14, 2026
BQ76942PFBR Battery Monitor Selection and Procurement Guide
Choose BQ76942PFBR by cell count, protection architecture, factory configuration, measurement needs, and a controlled sourcing specification.
Nov 13, 2026
SEP0640Q38CB Surge Protection Board Validation Guide
Validate a SEP0640Q38CB protection network through operating-envelope review, surge-current routing, recovery tests, and assembly checks.
Nov 13, 2026
Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit