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Analog Devices Inc./Maxim Integrated MAX6767TASD2+
- Part No.:
- MAX6767TASD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6767TASD2+.pdf
- Description:
- IC REG LINEAR WITH SUPERVISOR
- Quantity:
- Payment:
- Shipping:
Inventory:1,275
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Product details
Overview
The MAX6767TASD2+ from Maxim Integrated is a micropower automotive linear regulator with integrated supervisor and HOLD functionality, delivering up to 100mA at 3.3V output from 4V–72V input, featuring 31µA quiescent current, 866mV dropout at 100mA, and active-low open-drain RESET with 12.5ms fixed timeout - designed for always-on vehicle control modules requiring self-holding power sequencing.
For engineers reviewing the MAX6767TASD2+ datasheet, MAX6767TASD2+ pinout, MAX6767TASD2+ application, or MAX6767TASD2+ equivalent, key selection factors include its dual-enable logic (ENABLE + active-low HOLD), adjustable output capability (1.8V–11V), thermal shutdown at +160°C, and AEC-Q100-qualified operation across –40°C to +125°C.
Technical Context
This device implements a high-voltage linear regulation architecture with internal 1.233V reference and Dual Mode™ SET input, enabling precise output voltage setting via external resistor divider. Its HOLD function uses an internal 1.8µA pullup to OUT and responds to active-low assertion to latch regulator ON state independent of ENABLE.
The supervisor block integrates a comparator-based RESET generator with fixed 12.5ms timeout (D2 option), 3.053V reset threshold (T suffix), and supports open-drain RESET output. It lacks watchdog timer (unlike MAX6773/74 variants) and RESETIN input (unlike MAX6769/70), confirming its role as a dedicated 3.3V hold-enabled supervisor regulator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 72V - supports full automotive battery range including cold-crank (4.5V) and load-dump (60V+) |
| Output Voltage | Fixed 3.3V ±2.5% - factory-trimmed for stable MCU core/logic rail without external feedback |
| Max Output Current | 100mA continuous - sufficient for microcontrollers, CAN transceivers, and sensor interfaces |
| Quiescent Current | 31µA typical - enables >10-year battery standby in always-on telematics modules |
| Dropout Voltage | 866mV at 100mA - ensures regulation down to VIN = 4.166V for 3.3V output |
| Reset Threshold | 3.053V (T suffix) - asserts RESET when VOUT drops below 92.5% of nominal, preventing brownout execution |
| Reset Timeout | 12.5ms (D2 suffix) - guarantees µP reset pulse width exceeds minimum processor requirement |
| Operating Temp | –40°C to +125°C - fully specified for under-hood and transmission-control applications |
Pinout & Package
MAX6767TASD2+ is housed in a thermally enhanced 6-pin 3mm × 3mm TDFN-EP package (exposed pad soldered to PCB ground plane), rated for 1.951W dissipation at TA ≤ +70°C with 23.8mW/°C derating above.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator Input | Bypassed to GND with ≥0.1µF capacitor; accepts 4V–72V unregulated supply |
| 2 GND | Power Ground | Primary return path; exposed pad (EP) must be connected to PCB ground plane for thermal management |
| 3 ENABLE | Active-High Enable | Drives regulator ON when pulled ≥1.4V; internally pulled down (0.6µA) to GND when floating |
| 4 RESET | Active-Low Open-Drain Reset Output | Sinks ≥3.2mA at VOL ≤0.4V; requires external pullup to host VCC for µP reset interface |
| 5 TIMEOUT | Reset Timeout Adjust | Connected to OUT for fixed 12.5ms timeout (D2); capacitor-to-GND enables adjustment |
| 6 OUT | Regulated Output | Delivers 3.3V @ up to 100mA; bypassed to GND with ≥10µF capacitor for stability |
Key Features
| Feature | Design Value |
|---|---|
| HOLD Input Functionality | Active-low HOLD latches regulator ON after ENABLE activation - enables ignition-key-triggered self-holding without external components |
| Low Quiescent Current | 31µA supply current at zero load - minimizes parasitic drain in battery-backed systems |
| Thermal & Short-Circuit Protection | Auto-shutdown at +160°C junction temp with +20°C hysteresis; limits fault current to 150–250mA |
| High-Voltage Input Tolerance | Withstands 80V absolute max input - survives ISO 7637-2 pulse 5a (load dump) without external clamping |
| Precision Reset Monitoring | 3.053V reset threshold with ±37.5mV tolerance over temperature - ensures reliable brownout detection for 3.3V systems |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera Power |
|---|---|
Use Scenario: Continuous power for door-lock controllers and interior lighting during vehicle sleep mode. IC Role / Device Role / Timing Role: Primary 3.3V supply with HOLD-latched enable for wake-on-LIN/CAN event handling. Use Value: 31µA quiescent current prevents battery depletion over multi-week parking; 12.5ms RESET ensures clean MCU restart after voltage sag. |
Use Scenario: Stable 3.3V rail for image sensor and ISP in rear-view camera modules mounted near exhaust. IC Role / Device Role / Timing Role: High-temp tolerant linear regulator with thermal shutdown at +160°C and brownout protection. Use Value: 3mm × 3mm TDFN package with exposed pad sustains +125°C ambient; 866mV dropout maintains regulation during engine cranking. |
| Telematics Control Unit (TCU) | Electronic Parking Brake (EPB) ECU |
Use Scenario: Always-on power for GNSS receiver and cellular modem during vehicle off-state. IC Role / Device Role / Timing Role: Supervisor-regulator hybrid providing 3.3V output and RESET signal synchronized to VOUT stability. Use Value: Fixed 3.053V reset threshold matches 3.3V rail tolerance; HOLD input enables firmware-controlled power hold during OTA updates. |
Use Scenario: Safety-critical 3.3V supply for brake actuator MCU and position sensors in harsh under-chassis environment. IC Role / Device Role / Timing Role: AEC-Q100 qualified regulator with overtemperature lockout and short-circuit current limiting. Use Value: Thermal shutdown at +160°C prevents thermal runaway; 100mA output drives safety-monitoring circuits without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive linear regulator with supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6766TASD2+ | No HOLD input; ENABLE-only control; identical 3.3V output, 3.053V reset, 12.5ms timeout | Lacks self-holding capability - requires external latch circuit for ignition-triggered hold behavior | Select when simplified enable logic suffices and board space allows discrete hold circuit |
| TLV73333PDBVR | Lower voltage range (1.4V–5.5V), no RESET, no HOLD, 250mA output, 65µA IQ | Not suitable for automotive input transients; lacks supervision - only for post-regulated 3.3V domains | Select only for non-automotive, low-voltage secondary rails where supervision is handled upstream |
Compared with MAX6766TASD2+, the MAX6767TASD2+ adds critical HOLD functionality for ignition-synchronized power hold without external components; compared with TLV73333PDBVR, it provides full automotive-grade input robustness, integrated RESET, and thermal protection - making it uniquely suited for primary 3.3V supply in harsh-environment ECUs.
Availability
MAX6767TASD2+ is available at Aetrix Electronics and suitable for automotive body electronics, ADAS camera power supplies, and telematics control units requiring stable component supply with long-term lifecycle support and AEC-Q100 compliance.
Supply support for MAX6767TASD2+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets, emphasizing high reliability and extended temperature operation.
The MAX6765–MAX6774B family delivers automotive-qualified micropower linear regulators with integrated supervision, targeting always-on electronic control units where ultra-low IQ, wide VIN, and functional safety features like RESET and thermal shutdown are mandatory.
FAQ
What is the function of the HOLD pin on the MAX6767TASD2+?
The HOLD pin on the MAX6767TASD2+ is an active-low input that, when pulled low after ENABLE activation, latches the regulator ON state - maintaining 3.3V output even if ENABLE returns low. This enables self-holding behavior for ignition-key-triggered power sequencing without external components. The MAX6767TASD2+ uses an internal 1.8µA pullup to OUT on HOLD, and the pin must be driven below OUT − 0.4V to assert hold.
Does the MAX6767TASD2+ include a watchdog timer?
No, the MAX6767TASD2+ does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6773/MAX6773B/MAX6774/MAX6774B variants (identified by "73" or "74" in the part number). The MAX6767TASD2+ belongs to the MAX6767/MAX6768 subgroup, which features HOLD + ENABLE control and adjustable output capability but omits WDI input and watchdog timeout circuitry.
What is the meaning of 'TASD2' in MAX6767TASD2+?
In MAX6767TASD2+, the suffix 'T' denotes 3.3V output with 3.053V reset threshold, 'A' indicates automotive qualification (AEC-Q100), 'S' specifies the 3.3V output variant's reset threshold grade, and 'D2' selects the 12.5ms fixed reset timeout period. The '+' confirms RoHS-compliant, lead-free packaging. This full suffix maps precisely to the ordering table in the MAX6765–MAX6774B datasheet.
Can the MAX6767TASD2+ output voltage be adjusted externally?
Yes, the MAX6767TASD2+ supports adjustable output from 1.8V to 11V using an external resistor divider connected to the SET pin, though its default configuration is fixed 3.3V (achieved by connecting SET to GND). The output equation is VOUT = 1.233V × (1 + R1/R2), with R2 recommended at 50kΩ. This flexibility allows reuse of the same footprint for multiple voltage rails in platform designs.
What package type and thermal performance does the MAX6767TASD2+ use?
The MAX6767TASD2+ uses a 6-pin 3mm × 3mm TDFN-EP package with exposed pad, rated for 1.951W maximum power dissipation at TA ≤ +70°C and derated by 23.8mW/°C above that. When the exposed pad is soldered to a solid 1in² 2oz copper area per JESD51-3/5, it achieves low thermal resistance, enabling continuous 100mA operation at +125°C ambient - critical for under-hood automotive applications.
MAX6767TASD2+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 72V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.6V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- 55 µA
- PSRR:
- 70dB (100Hz)
- Control Features:
- Enable, Hold, Reset
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (3x3)
MAX6767TASD2+ FAQ
1.How can I place an order for MAX6767TASD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6767TASD2+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6767TASD2+ reliable?
The price and inventory of MAX6767TASD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6767TASD2+ is usually 5 days.
3.What payment methods are accepted for MAX6767TASD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6767TASD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6767TASD2+?
MAX6767TASD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6767TASD2+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6767TASD2+?
For technical support, including MAX6767TASD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6767TASD2+ requirements.
6.How does Aetrix verify that MAX6767TASD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6767TASD2+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6767TASD2+ meets industry standards.
7.What is the process for return or replacement of MAX6767TASD2+?
All MAX6767TASD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6767TASD2+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6767TASD2+ part is unused and in its original packaging.
Return procedure for MAX6767TASD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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