My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6770TAVD3+T
- Part No.:
- MAX6770TAVD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6770TAVD3+T.pdf
- Description:
- IC REG LINEAR 1.8V/ADJ 8-TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:300
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6770TAVD3+T from Maxim Integrated is an automotive-grade micropower linear regulator with integrated supervisor and watchdog timer, delivering 100mA at fixed 5.0V output (L-suffix), operating from 4V to 72V input, featuring 31µA quiescent current, open-drain active-low RESET, and 50ms capacitor-adjustable reset timeout - used in always-on vehicle control modules requiring low-power brownout protection.
For engineers reviewing the MAX6770TAVD3+T datasheet, MAX6770TAVD3+T pinout, MAX6770TAVD3+T application, or MAX6770TAVD3+T equivalent, key selection criteria include its AEC-Q100 qualification, -40°C to +125°C operation, 620mV dropout at 100mA/5V, TDFN-6 package thermal performance (θJA = 42°C/W on multilayer board), and watchdog timeout compatibility with microprocessor supervision in infotainment and body-control units.
Technical Context
The MAX6770TAVD3+T implements a single-enable (ENABLE) linear regulator architecture with internal 1.233V reference and precision bandgap-controlled feedback. Its supervisor block monitors OUT voltage against a fixed 4.625V reset threshold (L-option) and asserts an open-drain RESET for ≥50ms after recovery, set via TIMEOUT pin capacitor (D3 = 50ms typ).
This variant belongs to the MAX6770 subgroup - it lacks HOLD, WDI, RESETIN, ENABLE2, and dual-enable logic; includes overtemperature shutdown (160°C) and short-circuit protection; and uses a thermally enhanced 3mm × 3mm TDFN-6 package with exposed pad (EP) tied to GND for 1.951W dissipation capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 72V - supports full automotive battery range including load dump (up to 80V absolute max). |
| Output Voltage | 5.0V ±1.5% (L-option) - factory-trimmed, stable across -40°C to +125°C without external components. |
| Quiescent Current | 31µA (typ) at no load - enables >10-year battery standby in always-on modules. |
| Dropout Voltage | 620mV at 100mA/5V - ensures regulation down to VIN = 5.62V, critical during cold-crank conditions. |
| Reset Timeout | 50ms (D3 option) - externally adjustable via TIMEOUT-to-GND capacitor; meets ISO 16750-2 power interruption immunity. |
| RESET Output Type | Open-drain active-low - compatible with µP reset inputs requiring pull-up; VOL ≤ 0.4V at 3.2mA sink. |
| Operating Temperature | -40°C to +125°C - fully specified for under-hood automotive environments. |
Pinout & Package
MAX6770TAVD3+T is housed in a 3mm × 3mm, 6-pin TDFN-EP package (package code T633+2) with exposed thermal pad (EP) soldered to PCB ground plane for optimal heat dissipation (θJC = 9°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Regulator input - accepts 4V–72V; requires ≥0.1µF ceramic bypass to GND for stability. |
| 2 | GND | Power and signal ground - connects internally to EP; must be low-impedance PCB plane. |
| 3 | ENABLE | Active-high enable - driven high to activate regulator; internally pulled down (0.6µA) when floating. |
| 4 | RESET | Open-drain active-low reset output - asserts when OUT < 4.625V; remains low ≥50ms after recovery. |
| 5 | TIMEOUT | Reset timeout adjust - connect to GND via capacitor to set D3 (50ms typ); open for fixed timeout. |
| 6 | OUT | 5.0V regulated output - requires ≥10µF ceramic output capacitor; delivers up to 100mA. |
Key Features
| Feature | Design Value |
|---|---|
| Low-quiescent-current operation | 31µA supply current enables direct battery connection in always-on ECU modules without excessive drain. |
| Wide-input automotive voltage range | 4V–72V operation covers cold-crank (down to 4V), normal operation (9–16V), and load-dump transients (up to 80V abs max). |
| Integrated supervisor with precise reset | Fixed 4.625V reset threshold (L-option) with 50ms timeout ensures reliable µP reset during brownout and startup. |
| Thermal and short-circuit protection | Auto-shutdown at 160°C junction temperature with 20°C hysteresis prevents damage during overload or poor heatsinking. |
| AEC-Q100 qualified | Qualified per AEC-Q100 Rev H Grade 0 (−40°C to +125°C), meeting automotive reliability and stress-test requirements. |
Applications
| Engine Control Unit (ECU) Power Management | Body Control Module (BCM) Always-On Rail |
|---|---|
Use Scenario: Powers microcontroller and CAN transceiver in engine bay ECU during ignition-off battery monitoring. IC Role / Device Role / Timing Role: Primary 5V LDO regulator with supervisor; provides clean start-up sequencing and brownout detection. Use Value: 31µA quiescent current extends battery life; 72V input withstands alternator transients; AEC-Q100 ensures field reliability. |
Use Scenario: Supplies real-time clock and door-lock logic in BCM during vehicle sleep mode. IC Role / Device Role / Timing Role: Always-on 5V regulator with 50ms reset pulse to recover µP after voltage sag during accessory power cycling. Use Value: Fixed 4.625V reset threshold matches 5V rail tolerance; 620mV dropout sustains regulation during cold-crank (VIN ≈ 6V). |
| Infotainment System Power Sequencing | ADAS Camera Module Bias Supply |
Use Scenario: Generates stable 5V rail for audio DSP and display controller during vehicle power-up/down transitions. IC Role / Device Role / Timing Role: Supervisor-enabled LDO ensuring deterministic reset timing before firmware execution begins. Use Value: Open-drain RESET interfaces directly with µP reset pin; 50ms timeout satisfies ISO 26262 ASIL-B diagnostic response time. |
Use Scenario: Powers image sensor bias circuitry in rear-view camera module mounted near exhaust. IC Role / Device Role / Timing Role: High-temp-rated 5V regulator maintaining output during under-hood ambient up to +105°C. Use Value: 125°C max operating temperature and TDFN thermal design (θJA = 42°C/W) prevent thermal shutdown in confined enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micropower automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6765TTLD4+T | Same family, identical 5V/L/D4 (200ms reset), but no watchdog; lower quiescent current (31µA vs same), same TDFN-6 package. | Lacks watchdog timer; suitable where only power-supply supervision is required, not µP activity monitoring. | Select when system does not require WDI-based fault detection and longer reset timeout (200ms) is preferred for slower-ramping rails. |
| TLV73350PDBVR | 300mA, 5V fixed LDO; 50µA IQ; 6V max input; SOT-23-5; no supervisor or reset output. | Not automotive-qualified; lacks reset, watchdog, wide-input, or AEC-Q100 rating. | Only for non-automotive, low-current, low-voltage systems where cost and size outweigh functional and qualification requirements. |
Compared with MAX6765TTLD4+T, MAX6770TAVD3+T offers identical regulation and reset functionality but targets 50ms timeout instead of 200ms - better matching fast-recovery µP requirements. Compared with TLV73350PDBVR, MAX6770TAVD3+T adds AEC-Q100, 72V input, supervisor, and thermal protection - essential for automotive deployment.
Availability
MAX6770TAVD3+T is available at Aetrix Electronics and suitable for automotive ECU power management, body control modules, and infotainment subsystems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for MAX6770TAVD3+T 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 high-performance 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 supervision - engineered specifically for automotive always-on modules needing ultra-low IQ, wide VIN, and robust fault protection.
FAQ
What is the reset threshold voltage for MAX6770TAVD3+T?
The MAX6770TAVD3+T features a fixed reset threshold of 4.625V (L-option), guaranteed from -40°C to +125°C. This value is factory-trimmed and applies to the monitored OUT voltage; RESET asserts when OUT falls below this threshold and remains asserted for ≥50ms after recovery. The threshold is not adjustable on this variant.
Does MAX6770TAVD3+T include a watchdog timer?
No, MAX6770TAVD3+T does not include a watchdog timer. Watchdog functionality is present only in MAX6773/MAX6773B/MAX6774/MAX6774B variants. MAX6770TAVD3+T belongs to the ENABLE-only subgroup (like MAX6765/MAX6766/MAX6769/MAX6770) and provides only power-supply supervision via the RESET output.
What package type and thermal performance does MAX6770TAVD3+T use?
MAX6770TAVD3+T uses a 3mm × 3mm, 6-pin TDFN-EP package (outline 21-0137) with exposed pad. On a multilayer PCB, its thermal resistance is θJA = 42°C/W and θJC = 9°C/W, enabling up to 1.951W continuous power dissipation - sufficient for 100mA at 72V input in +85°C ambient with proper layout.
Is MAX6770TAVD3+T AEC-Q100 qualified?
Yes, MAX6770TAVD3+T is AEC-Q100 qualified (Grade 0, −40°C to +125°C). It appears in the official list of qualified parts: MAX6770TA_D_/V+. The "/V+" suffix in the ordering information confirms automotive qualification, and the device undergoes stress testing per AEC-Q100 Rev H standards.
How is the 50ms reset timeout implemented on MAX6770TAVD3+T?
The 50ms reset timeout on MAX6770TAVD3+T corresponds to the D3 option. It is implemented by connecting a capacitor between the TIMEOUT pin and GND. For D3, the typical timeout is 50ms (min 35ms, max 65ms), set by internal 1000nA ramp current and 1.22V threshold. No external resistor is needed - only the capacitor value determines timing.
MAX6770TAVD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Strip
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6770TAVD3+T FAQ
1.How can I place an order for MAX6770TAVD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6770TAVD3+T 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 MAX6770TAVD3+T reliable?
The price and inventory of MAX6770TAVD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6770TAVD3+T is usually 5 days.
3.What payment methods are accepted for MAX6770TAVD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6770TAVD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6770TAVD3+T?
MAX6770TAVD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6770TAVD3+T 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 MAX6770TAVD3+T?
For technical support, including MAX6770TAVD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6770TAVD3+T requirements.
6.How does Aetrix verify that MAX6770TAVD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6770TAVD3+T 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 MAX6770TAVD3+T meets industry standards.
7.What is the process for return or replacement of MAX6770TAVD3+T?
All MAX6770TAVD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6770TAVD3+T, 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 MAX6770TAVD3+T part is unused and in its original packaging.
Return procedure for MAX6770TAVD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6770TAVD3+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
