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HomeProductsIntegrated Circuits (ICs)PMIC - SupervisorsMAX6346UR33-T
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MAX6346UR33-T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number
MAX6346UR33-T
Manufacturer
Maxim Integrated
Allelco Part Number
32D-MAX6346UR33-T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
8,360 pcs available, New & Original
Parts Description
IC SUPERVISOR 1 CHANNEL SOT23-3
Package
SOT-23-3
Data sheet
MAX6346UR33-T.pdf

PCN Obsolescence/ EOL

Cylindrical Battery Holders.pdf

Part Numbering Guide

Part Numbering System.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 8360

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Specifications

MAX6346UR33-T Tech Specifications
Analog Devices Inc./Maxim Integrated - MAX6346UR33-T technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc./Maxim Integrated - MAX6346UR33-T

Product Attribute Attribute Value
Manufacturer Maxim Integrated
Voltage - Threshold 3.3V
Type Simple Reset/Power-On Reset
Supplier Device Package SOT-23-3
Series -
Reset Timeout 100ms Minimum
Reset Active Low
Product Attribute Attribute Value
Package / Case TO-236-3, SC-59, SOT-23-3
Package Tape & Reel (TR)
Output Push-Pull, Totem Pole
Operating Temperature -40°C ~ 85°C (TA)
Number of Voltages Monitored 1
Mounting Type Surface Mount
Base Product Number MAX6346

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

MAX6346UR33-T Image
MAX6346UR33-T (1)

Manufacturer Part Number

MAX6346UR33-T

Manufacturer

Analog Devices

Introduction

The MAX6346UR33-T is a power management integrated circuit (PMIC) that provides simple reset and power-on reset (POR) functionality. It monitors a single voltage input and generates an active-low reset signal when the voltage falls below a specified threshold.

Product Features and Performance

Monitors a single voltage input

3V voltage threshold

Push-pull, totem-pole reset output

Active-low reset signal

100ms minimum reset timeout

Operating temperature range of -40°C to 85°C

Product Advantages

Simple and reliable reset functionality

Compact surface-mount package

Wide operating temperature range

Key Reasons to Choose This Product

Cost-effective power management solution

Easy integration into various electronic systems

Ensures reliable operation by monitoring critical voltage levels

Quality and Safety Features

Designed and manufactured to Analog Devices' high-quality standards

Protects against voltage fluctuations and power supply failures

Compatibility

Suitable for a wide range of electronic devices and applications

Application Areas

Microcontroller-based systems

Power supplies

Industrial and consumer electronics

Product Lifecycle

The MAX6346UR33-T is an obsolete product. Customers are advised to contact our website's sales team for information on available alternative products or equivalent solutions.

Frequently Asked Questions(FAQ)

What are the key performance characteristics of the MAX6346UR33-T supervisor IC in terms of voltage monitoring and reset timing?
The MAX6346UR33-T is a single-channel supervisor IC with a precise 3.3V threshold for power-on reset functionality. It features a push-pull output configuration that actively drives both high and low states, eliminating the need for external pull-up resistors. The device guarantees a minimum reset timeout of 100ms after voltage stabilization, ensuring stable system initialization. This timing is critical for microcontrollers requiring extended stabilization periods before executing code.
How does the MAX6346UR33-T compare to other reset ICs like the TPS3809 series in terms of output drive capability and package compatibility?
Unlike some open-drain reset devices that require external components for proper logic level signaling, the MAX6346UR33-T provides true push-pull (totem pole) output architecture, enabling direct interfacing with CMOS logic without additional circuitry. While it shares the same SOT-23-3 package as comparable TI TPS3809 variants, its active drive strength and internal pull-up/pull-down transistors offer superior noise immunity and faster transition times in noisy industrial environments.
What design considerations are essential when implementing the MAX6346UR33-T in battery-powered applications with variable supply conditions?
In battery-powered systems where voltage sag occurs during peak load conditions, the 3.3V threshold must be carefully evaluated against minimum operating voltage margins. Engineers should account for the 100ms minimum reset pulse duration when configuring microcontroller wake-up routines or brown-out detection sequences. Additionally, the -40°C to +85°C operating range necessitates thermal derating considerations in compact enclosures where junction temperatures may approach upper limits under continuous operation.
Can the MAX6346UR33-T reliably detect voltage dips below 3.3V during transient events, and how does this affect system stability?
Yes, the device monitors the VCC input continuously and asserts reset when voltage falls below the 3.3V threshold for sufficient duration. However, rapid voltage fluctuations near the threshold may cause unintended resets if the supply doesn't remain below threshold long enough to trigger detection. Designers should implement adequate decoupling capacitance and minimize PCB trace inductance to prevent false triggering during legitimate transient events.
What are the implications of using the MAX6346UR33-T instead of a programmable reset IC in cost-sensitive mass production scenarios?
The fixed 3.3V threshold eliminates the need for external resistor networks required by programmable alternatives, reducing component count and board space. While this simplifies design, it also reduces flexibility—any change in system voltage requirements would necessitate new part selection rather than simple resistor value adjustments. For production volumes exceeding 10k units, the elimination of external components typically yields lower BOM cost despite potentially higher per-unit IC pricing.
How does the Moisture Sensitivity Level (MSL) rating of 1 impact handling procedures for the MAX6346UR33-T during manufacturing?
With an MSL rating of 1, the MAX6346UR33-T is considered moisture-insensitive and can withstand unlimited exposure to ambient humidity without special storage requirements. This simplifies inventory management and enables standard handling practices typical for surface-mount components, including immediate use after removal from dry packaging without bake cycles or controlled atmosphere storage.
What precautions should be taken regarding layout and routing when integrating the MAX6346UR33-T into a mixed-signal PCB design?
The supervisor IC's reference ground plane should be closely coupled to the system ground with multiple vias to minimize ground bounce effects. The VCC trace feeding the device should be routed separately from noisy digital lines and include bulk capacitance near the IC. Careful attention to loop areas between input capacitors and the IC pins helps maintain accurate threshold detection and prevents electromagnetic interference coupling through common impedance paths.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc./Maxim Integrated MAX6346UR33-T

Product Attribute MAX6346UR33+T MAX6346UR38-T MAX6346UR34+T MAX6346UR33
Part Number MAX6346UR33+T MAX6346UR38-T MAX6346UR34+T MAX6346UR33
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage - Threshold - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Reset Timeout - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Type - - - -
Number of Voltages Monitored - - - -
Output - - - -
Reset - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)

MAX6346UR33-T Datasheet PDF

Download MAX6346UR33-T pdf datasheets and Analog Devices Inc./Maxim Integrated documentation for MAX6346UR33-T - Analog Devices Inc./Maxim Integrated.

Datasheets
MAX6326-28,46-48.pdf
Environmental Information
Maxim Integrated REACH.pdf Maxim Integrated RoHS Cert.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf
Part Numbering Guide
Part Numbering System.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
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Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
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  • Western-Union
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Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
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Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
MAX6346UR33-T Image

MAX6346UR33-T

Analog Devices Inc./Maxim Integrated
32D-MAX6346UR33-T

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