MAX6361PUT31+ Maxim Integrated Integrated Circuit (SOT23 (6-Pin)) In Stock
Maxim MAX6361PUT31+ is a dual-channel processor supervisor IC supporting 2.5 V, 3.3 V, and 5 V rails with active-low open-drain reset output, watchdog timer, and battery backup switch in a 6-pin SOT-23 package. Available from stock with worldwide shipping.
- Manufacturer
- Maxim Integrated
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- MAX6361PUT31+ 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
Key Features
- Dual-channel voltage supervision across 2.5 V, 3.3 V, and 5 V rails with active-low open-drain reset output for flexible microprocessor interfacing
- Integrated watchdog timer and manual reset input provide complete system reliability monitoring without external components
- Battery backup switch function enables seamless transition to backup power, extending system uptime during main supply dropout events
Applications
The MAX6361PUT31+ is ideal for supervising microcontroller and processor power rails in embedded systems, industrial controllers, and portable devices that require robust reset management across multiple supply voltages. Its watchdog timer ensures the host processor restarts automatically if firmware locks up, while the battery backup switch maintains critical memory or RTC functions during a primary supply failure. The compact 6-pin SOT-23 package minimizes board area consumption in space-constrained designs operating from 2.5 V to 5 V.
Specifications
| Manufacturer Package Code | 6-SOT_23-N/A |
| Date Of Intro | 2000-01-03 |
| YTEOL | 9 |
| Additional Feature | BAT BUP SW:Y;MNL RST:Y;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:Y;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Nom (Vsup) | 2.38V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +3.08V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (6-Pin) |
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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which supply voltages can MAX6361PUT31+ monitor and what reset threshold accuracy does it provide?
The MAX6361PUT31+ supports supervision of 2.5 V, 3.3 V, and 5 V supply rails. It monitors 2 channels simultaneously and asserts an active-low open-drain reset output when a monitored rail drops below its preset threshold. The factory-trimmed thresholds offer accurate undervoltage detection without external resistor dividers, simplifying board design in dual-supply embedded systems.
How does the watchdog timer in MAX6361PUT31+ protect against processor lockup in industrial control applications?
The MAX6361PUT31+ includes an integrated watchdog timer that requires the host processor to toggle a dedicated input within a set timeout window, typically between 1 ms and 1.6 seconds depending on the variant. If the processor fails to service the watchdog due to a firmware hang or infinite loop, the IC asserts the active-low reset output in the 6-pin SOT-23 package, forcing a clean system restart to restore normal operation.
When is MAX6361PUT31+ a better choice than a discrete comparator solution for battery backup switching?
The MAX6361PUT31+ integrates a battery backup switch, a voltage supervisor, and a watchdog timer within a single 6-pin SOT-23 package, eliminating the need for 3 to 5 discrete components. A discrete comparator solution for battery backup switching requires a separate comparator, reference, MOSFET, and timing circuit, consuming significantly more board area and adding assembly complexity. At operating voltages from 2.5 V to 5 V, the MAX6361PUT31+ provides a more reliable and cost-effective integrated alternative.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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.”