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Analog Devices Inc./Maxim Integrated MAX25210ATAD8/V+
- Part No.:
- MAX25210ATAD8/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX25210ATAD8/V+.pdf
- Description:
- IC REG LINEAR 3.3V/5V 50MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,373
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Product details
Overview
The MAX25210ATAD8/V+ from Analog Devices is an automotive-grade, high-voltage linear regulator delivering 50mA output current with ultra-low 10µA quiescent current and +3.5V to +36V input range. It supports fixed 3.3V/5V or adjustable 0.6V–11V outputs, features open-drain active-low RESET with 87.5% threshold and 60µs default delay, and operates across –40°C to +125°C for engine control unit (ECU) power management.
For engineers reviewing the MAX25210ATAD8/V+ datasheet, MAX25210ATAD8/V+ pinout, MAX25210ATAD8/V+ application, or MAX25210ATAD8/V+ equivalent, this page delivers verified electrical specs, thermal behavior under load-dump, RESET timing configuration, and AEC-Q100-compliant design validation for automotive battery-supplied subsystems.
Technical Context
The MAX25210ATAD8/V+ integrates a precision bandgap reference, thermal shutdown at +170°C with 20°C hysteresis, and short-circuit protection limiting output current to 58–88mA (typ). Its ENABLE input tolerates up to +42V and includes internal 0.25µA pulldown, enabling direct connection to battery rails without external biasing.
RESET functionality uses internal voltage monitoring with fixed 87.5% falling-threshold detection and configurable timeout via TIMEOUT pin capacitance; SETOV pin selects between 3.3V/5V fixed modes or enables external resistive divider feedback for adjustable regulation. The device achieves stable operation with only 2.2µF output capacitance in fixed-output configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 50mA max - sufficient for low-power microcontrollers, sensors, and CAN transceivers in always-on domains |
| Quiescent Current | 10µA typical at no load - enables >10-year battery life in vehicle telematics and key-off modules |
| Input Voltage Range | +3.5V to +36V continuous, +42V transient tolerant - survives cold-crank (down to 3.5V) and load-dump (up to 42V) |
| Output Voltage Options | Fixed 3.3V or 5V (via SETOV pin), or 0.6V–11V adjustable - supports diverse logic supply requirements without external DAC |
| RESET Threshold | 87.5% of VOUT (falling edge) - ensures reliable microcontroller reset before brownout-induced corruption |
| Dropout Voltage | 130mV at 50mA, +150°C - maintains regulation during low-battery cranking conditions |
| Operating Temperature | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 0 for under-hood deployment |
Pinout & Package
MAX25210ATAD8/V+ uses an 8-pin TDFN-EP package (3mm × 3mm, exposed pad), optimized for thermal dissipation in space-constrained automotive PCBs. The exposed pad must be soldered to a ground plane for θJA = 41°C/W (4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | High-voltage input rail | Bypassed with ≥1µF ceramic capacitor; withstands +42V transients and load-dump events |
| 2 ENABLE | Active-high enable control | Internally pulled down (0.25µA); accepts +42V logic - allows direct battery connection for always-on operation |
| 3 SET | Feedback mode selector | Grounded for fixed-output mode; driven >2.4V for adjustable mode using external resistor divider |
| 4 RESET | Open-drain active-low reset signal | Asserts low during undervoltage, thermal shutdown, or ENABLE deactivation; requires external pull-up ≥1.5V |
| 5 TIMEOUT | Reset timeout period adjust | Connect capacitor to GND to extend default 60µs delay; 1.25ms/nF scaling factor enables µC-compatible timing |
| 6 SETOV | Output voltage selection node | GND → 3.3V fixed; OUT → 5V fixed; external divider → 0.6V–11V adjustable; 0.600V ±2% reference accuracy |
| 7 GND | Power and signal ground | Common return path; connects to exposed thermal pad for optimal heat transfer to PCB |
| 8 OUT | Regulated output | Stable with ≥2.2µF ceramic capacitor (X7R/X5R); low-ESR requirement ensures transient response and PSRR >60dB @100Hz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 10µA typical at no load - reduces parasitic drain on 12V lead-acid batteries during extended key-off periods |
| Automotive transient tolerance | +42V input rating - eliminates need for external TVS diodes in ISO 7637-2 Pulse 5a/b compliant designs |
| Integrated RESET generator | 87.5% VOUT threshold with 60µs–10ms programmable delay - replaces discrete supervisor ICs in ECU and ADAS modules |
| Thermal and short-circuit protection | +170°C shutdown with 20°C hysteresis and 58–88mA current limit - prevents latch-up and enables safe continuous fault operation |
| Flexible output configuration | Single-pin SETOV selection between 3.3V/5V fixed or 0.6V–11V adjustable - simplifies BOM across multiple platform variants |
Applications
| Engine Control Unit (ECU) Power | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Supplies 3.3V to MCU, CAN controller, and analog front-end in engine bay-mounted ECUs subject to cold-crank and load-dump stress. IC Role / Device Role / Timing Role: Primary LDO providing clean, regulated 3.3V rail with RESET assertion during battery sag below 2.89V (87.5% of 3.3V). Use Value: Eliminates need for external reset supervisor and TVS protection, reducing component count by two devices while meeting ISO 16750-2 Class D surge immunity. |
Use Scenario: Powers image signal processor (ISP) and radar sensor interface in forward-facing camera modules operating at ambient –40°C to +105°C. IC Role / Device Role / Timing Role: Low-noise 5V supply with 60µs RESET delay synchronized to ISP boot sequence; TIMEOUT pin extended to 2ms for FPGA configuration lock. Use Value: Enables single-chip power sequencing and fault signaling, avoiding timing mismatches between sensor and host processor during cold-start. |
| Telematics Control Unit (TCU) | Body Control Module (BCM) |
|
Use Scenario: Provides always-on 3.3V rail to GNSS receiver and cellular modem in vehicle tracking units requiring <15µA sleep current. IC Role / Device Role / Timing Role: Regulator with ENABLE tied to ignition sense; RESET asserts during battery disconnect to trigger graceful firmware shutdown. Use Value: Achieves 10.2-year theoretical battery life on 12Ah Li-SOCl₂ cell (at 10µA avg), validated over full automotive temperature range. |
Use Scenario: Supplies 5V to door module microcontroller and LIN transceiver in gateways managing interior lighting and window controls. IC Role / Device Role / Timing Role: Fixed 5V output with RESET monitoring VOUT; TIMEOUT capacitor set to 100nF for 125ms delay matching BCM bootloader timeout. Use Value: Ensures deterministic reset timing across all vehicle variants without firmware modification, improving production test yield. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage, ultra-low-IQ linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX25210ATAB8/V+ | 200mA output current, identical 87.5% RESET threshold and 8-pin TDFN package | Supports higher-current loads like dual CAN FD transceivers or multi-sensor clusters | Select when system peak load exceeds 50mA but board layout and thermal constraints permit same footprint |
| TLV73350PDBVR | 500mA output, 45µA IQ, 2.5V–6.0V input, no RESET or AEC-Q100 qualification | Limited to non-automotive, lower-voltage industrial or consumer applications | Choose only for cost-sensitive, non-automotive designs where 42V tolerance and AEC-Q100 are unnecessary |
Compared with MAX25210ATAB8/V+, the MAX25210ATAD8/V+ trades output current for tighter thermal envelope and lower system-level leakage; versus TLV73350PDBVR, it delivers automotive-grade reliability, wider input range, and integrated supervision - critical for functional safety compliance.
Availability
MAX25210ATAD8/V+ is available at Aetrix Electronics and suitable for automotive ECU power, ADAS sensor supplies, telematics always-on circuits, and body electronics requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for MAX25210ATAD8/V+ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets with precision power, sensing, and timing solutions.
The MAX25210 family was designed specifically for automotive power management in battery-supplied systems requiring ultra-low quiescent current, high-voltage resilience, and integrated system supervision - targeting ECU, ADAS, and telematics applications.
FAQ
What is the maximum input voltage the MAX25210ATAD8/V+ can withstand?
The MAX25210ATAD8/V+ supports continuous input voltage from +3.5V to +36V and is rated for +42V transient tolerance, making it suitable for automotive load-dump conditions per ISO 7637-2. This rating applies to the IN, ENABLE, SET, RESET, SETOV, and TIMEOUT pins, ensuring robust operation during battery system surges without external protection components.
How does the RESET function work on the MAX25210ATAD8/V+?
The MAX25210ATAD8/V+ provides an open-drain, active-low RESET output that asserts low when the OUT voltage falls below 87.5% of its nominal value. After the output recovers, RESET remains low for a default 60µs timeout - extendable via a capacitor on the TIMEOUT pin. RESET also activates during ENABLE deactivation and thermal shutdown, providing unified fault signaling.
Can the MAX25210ATAD8/V+ be used in adjustable-output mode?
Yes, the MAX25210ATAD8/V+ supports adjustable output from +0.6V to +11V using an external resistive divider between OUT and SETOV. To enable this mode, connect SET to IN (or >2.4V) and configure R1/R2 such that VOUT = 0.6V × (1 + R1/R2), with R2 ≤ 110kΩ. The internal 0.600V ±2% reference ensures accurate regulation across temperature.
What thermal protection features does the MAX25210ATAD8/V+ include?
The MAX25210ATAD8/V+ incorporates thermal shutdown at +170°C junction temperature with 20°C hysteresis. When triggered, the pass transistor turns off until the die cools to +150°C, then automatically restarts. This cycling protects against sustained overload while maintaining functionality after fault clearance - critical for under-hood deployments where airflow is limited.
Is the MAX25210ATAD8/V+ AEC-Q100 qualified?
Yes, the MAX25210ATAD8/V+ is AEC-Q100 qualified for Grade 0 (–40°C to +125°C ambient), with full characterization across temperature, voltage, and lifetime stress tests. Its qualification covers electrical parameters, thermal performance, and reliability metrics including HTOL, TC, and UHAST - confirming suitability for safety-critical automotive power domains.
MAX25210ATAD8/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Strip
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V, 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.13V @ 50mA
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- 38 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (100Hz)
- Control Features:
- Enable, Reset Out
- Protection Features:
- Over Current, Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX25210ATAD8/V+ FAQ
1.How can I place an order for MAX25210ATAD8/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX25210ATAD8/V+ 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 MAX25210ATAD8/V+ reliable?
The price and inventory of MAX25210ATAD8/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX25210ATAD8/V+ is usually 5 days.
3.What payment methods are accepted for MAX25210ATAD8/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX25210ATAD8/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX25210ATAD8/V+?
MAX25210ATAD8/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX25210ATAD8/V+ 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 MAX25210ATAD8/V+?
For technical support, including MAX25210ATAD8/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX25210ATAD8/V+ requirements.
6.How does Aetrix verify that MAX25210ATAD8/V+ is sourced from the original manufacturer or authorized distributors?
All MAX25210ATAD8/V+ 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 MAX25210ATAD8/V+ meets industry standards.
7.What is the process for return or replacement of MAX25210ATAD8/V+?
All MAX25210ATAD8/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX25210ATAD8/V+, 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 MAX25210ATAD8/V+ part is unused and in its original packaging.
Return procedure for MAX25210ATAD8/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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