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Analog Devices Inc./Maxim Integrated MAX6770TALD2+
- Part No.:
- MAX6770TALD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6770TALD2+.pdf
- Description:
- POWER SUPPLY SUPPORT CIRCUIT, AD
- Quantity:
- Payment:
- Shipping:
Inventory:601
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Product details
Overview
MAX6770TALD2+ from Maxim Integrated is an automotive-grade micropower linear regulator with integrated supervisor, delivering 100mA output at 3.3V with 620mV dropout (at 100mA), 31µA quiescent current, and fixed 3.353V reset threshold. It operates from 4V to 72V input and features push-pull RESET, 200ms fixed reset timeout, and ENABLE-only control - designed for always-on vehicle modules such as body control units and telematics gateways.
For engineers reviewing the MAX6770TALD2+ datasheet, MAX6770TALD2+ pinout, MAX6770TALD2+ application, or MAX6770TALD2+ equivalent, key selection considerations include its -40°C to +125°C operation, TDFN-6EP package thermal performance (1.951W dissipation), watchdog-free supervisor architecture, and compatibility with 12V/24V/48V automotive battery systems under cold-crank and load-dump conditions.
Technical Context
The MAX6770TALD2+ belongs to the MAX6765–MAX6774B family and implements a single-enable (ENABLE) linear regulation architecture with internal 3.3V reference and precision reset comparator. Its RESET output asserts low when OUT falls below 3.353V and remains asserted for exactly 200ms after recovery - determined by internal timing circuitry, not external capacitor.
This variant lacks HOLD, WDI, RESETIN, ENABLE2, or SET functionality; it uses fixed 3.3V output and fixed reset threshold (T suffix), fixed timeout (D2 = 200ms), and push-pull RESET (L suffix). It supports only standard enable/shutdown sequencing - no self-holding or dual-input ignition control.
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 (65V+) |
| Output Voltage | Fixed 3.3V ±2.5% - stable supply for automotive microcontrollers and CAN transceivers |
| Max Output Current | 100mA continuous - sufficient for low-power MCU + peripheral rail in body electronics |
| Quiescent Current | 31µA typical - enables <100µA system standby power for ISO 8859-3 compliance |
| Dropout Voltage | 620mV at 100mA - ensures regulation down to VIN = 3.92V, critical during engine cranking |
| Reset Threshold | 3.353V (T option) - triggers reset before 3.3V rail collapse affects logic-level integrity |
| Reset Timeout | 200ms fixed - meets µP reset hold-time requirements per JEDEC JESD84-B51 |
| Operating Temp | -40°C to +125°C - qualified for under-hood and transmission-control module environments |
Pinout & Package
MAX6770TALD2+ is housed in a thermally enhanced 3mm × 3mm, 6-pin TDFN-EP package (exposed pad soldered to PCB ground plane), rated for 1.951W power dissipation at TA ≤ +70°C with proper copper layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator Input | Bypass with ≥0.1µF ceramic capacitor; accepts 4V–72V unregulated battery input |
| 2 GND | Ground Reference | Primary return path; connects internally to exposed pad (EP) for thermal conduction |
| 3 ENABLE | Active-High Enable | Drive ≥1.4V to activate regulator; internally pulled down (0.6µA) for default-off safety |
| 4 RESET | Active-Low Push-Pull Reset Output | Drives µP reset pin directly; sinks 3.2mA at 0.4V max - no external pull-up required |
| 5 TIMEOUT | Reset Timeout Selection | Internally connected to OUT - selects fixed 200ms timeout (D2); leave unconnected if unused |
| 6 OUT | Regulated Output | 3.3V supply rail; bypass with ≥10µF low-ESR capacitor (ESR < 0.5Ω) for stability |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 0 (-40°C to +125°C ambient) - validated for engine bay deployment |
| Low-quiescent-current regulation | 31µA IQ enables >1-year battery life in always-on telematics modules with 12Ah lead-acid |
| High-voltage input tolerance | Withstands 80V absolute max input - survives ISO 7637-2 pulse 5a (load dump) without clamping |
| Integrated overtemperature protection | Shuts down at +160°C junction; restarts at +140°C - prevents thermal runaway in sealed enclosures |
| Short-circuit robustness | Limits output current to 150–250mA during fault - avoids fuse blowing and enables auto-recovery |
| Push-pull RESET output | Eliminates need for external pull-up resistor - reduces BOM count and PCB area in space-constrained ECUs |
Applications
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
|---|---|
|
Use Scenario: Powering 3.3V microcontroller, LIN transceiver, and sensor interface in door module with wake-on-LIN capability. IC Role / Device Role / Timing Role: Primary 3.3V LDO with supervisor; provides regulated rail and deterministic reset during battery voltage sag. Use Value: 31µA quiescent current ensures <50µA total BCM sleep current - compliant with SAE J1939-13 Class 2 leakage limits. |
Use Scenario: Supplying 3.3V logic rail for LTE modem, GNSS receiver, and CAN FD gateway in fleet-tracking hardware. IC Role / Device Role / Timing Role: Always-on regulator with 200ms reset hold time - guarantees clean boot after ignition cycle or brownout recovery. Use Value: 4V–72V input range accommodates 12V/24V vehicle platforms and transient surges up to 65V during alternator load dump. |
| Powertrain Sensor Interface | ADAS Camera ECU |
|
Use Scenario: Regulating 3.3V supply for pressure, temperature, and position sensors in engine management system. IC Role / Device Role / Timing Role: Supervised LDO ensuring sensor data validity via synchronized reset assertion during undervoltage events. Use Value: 3.353V reset threshold aligns with 3.3V I/O tolerance of automotive SPI sensors - prevents metastability on power-up. |
Use Scenario: Providing 3.3V bias to image signal processor and serializer in rear-view camera module mounted near exhaust. IC Role / Device Role / Timing Role: High-temp-stable LDO with thermal shutdown - maintains operation at +105°C ambient under hood. Use Value: 1.951W thermal dissipation in TDFN-6EP allows 100mA load at +105°C without derating - eliminates need for heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator with supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6769TALD2+ | Includes RESETIN pin for adjustable reset threshold; same 3.3V output, 200ms timeout, ENABLE-only control | Required when monitoring non-regulated rails (e.g., 5V or 12V) - not suitable for direct 3.3V supervision | Select MAX6769TALD2+ only if external voltage monitoring beyond OUT is needed; otherwise MAX6770TALD2+ offers lower pin count and cost |
| TLV70733PDQNR | Lower IQ (25µA), but max input 5.5V and temp range -40°C to +125°C - no automotive qualification or high-voltage tolerance | Restricted to infotainment USB peripherals or low-voltage ADAS sub-modules - cannot replace in main battery-fed rails | Use TLV70733PDQNR only in 3.3V-sourced subsystems; MAX6770TALD2+ is mandatory for direct battery connection in automotive primary domains |
Compared with MAX6769TALD2+, MAX6770TALD2+ simplifies design by removing RESETIN complexity while retaining identical 3.3V/200ms/ENABLE functionality; versus TLV70733PDQNR, it trades 6µA lower IQ for 66.5V higher input capability and AEC-Q100 qualification - essential for under-hood reliability.
Availability
MAX6770TALD2+ is available at Aetrix Electronics and suitable for automotive body electronics, telematics gateways, and powertrain sensor interfaces requiring stable component supply across extended temperature and high-reliability automotive programs.
Supply support for MAX6770TALD2+ 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.
The MAX6765–MAX6774B product line delivers micropower, high-voltage linear regulators with integrated supervisors specifically for automotive always-on modules where ultra-low IQ, wide VIN, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum input voltage rating for MAX6770TALD2+?
The MAX6770TALD2+ has an absolute maximum input voltage of +80V, with operational specification from 4V to 72V. This allows it to withstand automotive load-dump transients defined in ISO 7637-2 Pulse 5a (up to 65V for 400ms) without external protection circuitry - a key requirement for direct-battery-connected modules.
Does MAX6770TALD2+ include a watchdog timer function?
No, MAX6770TALD2+ does not include a watchdog timer. It belongs to the ENABLE-only subgroup (MAX6765/MAX6766/MAX6769/MAX6770/MAX6773/MAX6773B/MAX6774/MAX6774B) and lacks the WDI pin and associated 1.6s/50ms timeout logic found only in MAX6773/MAX6773B/MAX6774/MAX6774B variants.
What is the RESET output type on MAX6770TALD2+ and how is it configured?
The MAX6770TALD2+ features a push-pull RESET output (denoted by 'L' in the part number suffix). It actively drives low during reset and high when deasserted - eliminating the need for an external pull-up resistor and reducing system BOM cost and board space compared to open-drain alternatives.
Can MAX6770TALD2+ be used with adjustable output voltage configurations?
No, MAX6770TALD2+ provides only fixed 3.3V output. The 'T' suffix indicates fixed 3.3V output and fixed 3.353V reset threshold. Adjustable output requires SET pin functionality, which is absent in this variant - only MAX6767–MAX6774B parts support external resistive divider configuration from 1.8V to 11V.
What thermal derating applies to MAX6770TALD2+ above +70°C ambient?
For ambient temperatures above +70°C, MAX6770TALD2+ derates at 24.4mW/°C. Its maximum power dissipation drops from 1951.2mW at +70°C to 1951.2mW − [24.4mW × (TA − 70)] at higher temperatures - e.g., 1830mW at +120°C - assuming proper PCB copper area (1in², 2oz) connected to the exposed pad.
MAX6770TALD2+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (3x3)
MAX6770TALD2+ FAQ
1.How can I place an order for MAX6770TALD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6770TALD2+ 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 MAX6770TALD2+ reliable?
The price and inventory of MAX6770TALD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6770TALD2+ is usually 5 days.
3.What payment methods are accepted for MAX6770TALD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6770TALD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6770TALD2+?
MAX6770TALD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6770TALD2+ 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 MAX6770TALD2+?
For technical support, including MAX6770TALD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6770TALD2+ requirements.
6.How does Aetrix verify that MAX6770TALD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6770TALD2+ 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 MAX6770TALD2+ meets industry standards.
7.What is the process for return or replacement of MAX6770TALD2+?
All MAX6770TALD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6770TALD2+, 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 MAX6770TALD2+ part is unused and in its original packaging.
Return procedure for MAX6770TALD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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