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Analog Devices Inc./Maxim Integrated MAX25210ATAB9/V+
- Part No.:
- MAX25210ATAB9/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX25210ATAB9/V+.pdf
- Description:
- IC REG LIN 3.3V/5V 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,828
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Product details
Overview
MAX25210ATAB9/V+ from Analog Devices is an automotive-grade, high-voltage linear regulator delivering 200mA output current with 10µA typical quiescent current, +3.5V to +36V input range, and +42V transient tolerance-designed for battery-supplied ECUs, ADAS domain controllers, and infotainment power rails requiring ultra-low standby power.
For engineers reviewing the MAX25210ATAB9/V+ datasheet, MAX25210ATAB9/V+ pinout, MAX25210ATAB9/V+ application, or MAX25210ATAB9/V+ equivalent, this page delivers verified electrical specs, thermal behavior under load-dump, RESET threshold accuracy (93.5% of VOUT), fixed/adjustable output configuration logic, and AEC-Q100-compliant packaging in a 3mm × 3mm TDFN-EP.
Technical Context
The MAX25210ATAB9/V+ implements a high-voltage NPN pass transistor architecture with internal bandgap reference, UVLO at 2.2V (falling), and thermal shutdown at +170°C with 20°C hysteresis. Its SET/SETOV dual-input control enables seamless mode selection between 3.3V/5V fixed outputs or 0.6V–11V adjustable regulation via external resistor divider.
RESET functionality uses an open-drain output with factory-trimmed 93.5% falling-threshold detection and 60µs default timeout-extendable via TIMEOUT pin capacitor. ENABLE withstands +42V and features internal 0.25µA pulldown, enabling direct connection to battery without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +3.5V to +36V continuous; +42V tolerant for 1s-supports cold-crank (4.5V) and load-dump (42V) transients per ISO 7637-2. |
| Output Current | 200mA maximum-sufficient for microcontroller cores, CAN transceivers, and sensor signal chains in compact modules. |
| Quiescent Current | 10µA typical at no load-enables >10-year battery life in always-on vehicle subsystems (e.g., telematics wake-up circuits). |
| RESET Threshold | 93.5% of nominal output voltage (e.g., 4.675V for 5V output)-ensures reliable microprocessor reset before brownout. |
| Dropout Voltage | 300mV typical at 200mA-maintains regulation down to VIN = VOUT + 0.3V, critical during low-battery cranking. |
| Operating Temperature | -40°C to +125°C junction-qualified to AEC-Q100 Grade 1, validated for under-hood ECU deployment. |
| Package | 8-pin TDFN-EP, 3mm × 3mm-exposed pad enables ≤41°C/W θJA on 4-layer PCB, reducing thermal derating in sealed enclosures. |
Pinout & Package
MAX25210ATAB9/V+ is housed in an 8-pin thermally enhanced TDFN-EP package (3mm × 3mm, outline 21-0137) with exposed thermal pad connected to GND for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. IN | Regulator input | Accepts +3.5V to +36V supply; requires ≥1µF low-ESR ceramic bypass to GND for stability during load transients. |
| 2. ENABLE | Active-high enable | Logic-high (>2.4V) enables regulation; internally pulled down (0.25µA), tolerates +42V-connect directly to battery for always-on operation. |
| 3. SET | Mode selector | GND = fixed-output mode (3.3V/5V); IN or >2.4V = adjustable mode-configures internal feedback MUX path. |
| 4. RESET | Open-drain reset output | Active-low, asserts when VOUT falls below 93.5% threshold or during shutdown; requires external pull-up ≥1.5V. |
| 5. TIMEOUT | Reset delay adjust | Capacitor to GND extends default 60µs timeout; 1nF adds ~1.25ms-synchronizes with µC power-on reset timing. |
| 6. SETOV | Output voltage selector | GND = 3.3V fixed; OUT = 5V fixed; external divider = 0.6V–11V adjustable-sets feedback reference node (0.600V ±2%). |
| 7. GND | Power ground | Reference for all analog circuitry; must be tied to exposed pad and system ground plane via multiple vias. |
| 8. OUT | Regulated output | Delivers up to 200mA; requires ≥2.2µF low-ESR ceramic capacitor to GND for stability in fixed-output mode. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 10µA typical at no load-reduces parasitic drain in always-on automotive modules, meeting OEM <100µA system standby targets. |
| Integrated RESET generator | Factory-trimmed 93.5% threshold with 60µs–multi-ms programmable delay-eliminates discrete reset IC and associated BOM cost. |
| Robust input protection | +42V transient tolerance and -0.3V to +42V absolute max ratings on IN/ENABLE/SET/RESET-survives ISO 7637-2 pulse 5a/b without external TVS. |
| Flexible output configuration | Single device supports 3.3V/5V fixed or 0.6V–11V adjustable via SET/SETOV pin states-reduces SKU count across platform variants. |
| Thermal and short-circuit protection | +170°C shutdown with 20°C hysteresis and 330mA typical short-circuit limit-prevents damage during sustained overload or PCB fault conditions. |
Applications
| Advanced Driver Assistance Systems (ADAS) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Powering radar processor SoCs and camera ISP units in front-facing ADAS ECUs operating continuously during vehicle motion. IC Role / Device Role / Timing Role: Primary 5V/3.3V LDO supplying core logic and I/O rails; RESET monitors output to hold processor in reset until stable post cold-crank. Use Value: 10µA IQ enables <5µA total system sleep current; +42V tolerance eliminates need for upstream TVS diodes in compact radar housing. |
Use Scenario: Regulating power for LIN transceivers, door lock actuators, and ambient lighting drivers in centralized BCM designs. IC Role / Device Role / Timing Role: Secondary LDO generating isolated 3.3V rail for communication interfaces; ENABLE tied to ignition switch for controlled power sequencing. Use Value: 200mA output drives multiple LIN nodes simultaneously; thermal shutdown prevents latch-up during actuator stall events. |
| Infotainment Head Unit | Telematics Control Unit (TCU) |
|
Use Scenario: Supplying low-noise 3.3V for audio codecs and touch controller ASICs in head units with display backlight dimming. IC Role / Device Role / Timing Role: Post-regulator LDO filtering switching converter ripple; TIMEOUT capacitor tuned to match MCU boot sequence timing. Use Value: Stable operation with 2.2µF output cap reduces board area vs. traditional 10µF solutions; PSRR >60dB at 100Hz suppresses SMPS noise. |
Use Scenario: Providing always-on 3.3V rail for GNSS receiver, cellular modem, and CAN FD gateway in TCU modules with remote diagnostics. IC Role / Device Role / Timing Role: Standby LDO maintaining RTC and wake-up logic during vehicle sleep; RESET signals modem reset after battery recovery from deep discharge. Use Value: 2µA shutdown current ensures <10µA total module leakage; AEC-Q100 qualification guarantees reliability over 15-year vehicle lifecycle. |
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+ | Identical 200mA output and 3mm × 3mm TDFN package, but RESET threshold is 87.5% (vs. 93.5%) | Suitable where earlier reset assertion is preferred-e.g., systems with tighter VOUT tolerance or slower µC POR timing | Select MAX25210ATAB8/V+ only if design requires lower reset threshold; otherwise MAX25210ATAB9/V+ provides higher noise margin. |
| TPS7B8750QKVURQ1 | 250mA output, 26µA IQ, 4.5V–40V input, 5V fixed, 92% RESET threshold, 8-pin VSON (3.5mm × 3.5mm) | Larger footprint and higher IQ-less suitable for space-constrained, ultra-low-power modules requiring <15µA standby | Choose TPS7B8750QKVURQ1 only when higher output current or TI ecosystem compatibility outweighs IQ and size penalties. |
Compared with MAX25210ATAB8/V+, MAX25210ATAB9/V+ offers tighter reset timing margin for noise-immune microprocessor startup; versus TPS7B8750QKVURQ1, it delivers 2.6× lower quiescent current and 13% smaller footprint-critical for next-gen compact automotive modules.
Availability
MAX25210ATAB9/V+ is available at Aetrix Electronics and suitable for automotive electronic control units, ADAS domain controllers, and telematics modules requiring stable component supply with AEC-Q100 compliance, extended temperature operation, and ultra-low quiescent current performance.
Supply support for MAX25210ATAB9/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 consumer markets with precision power, sensing, and interface solutions.
The MAX25210 family was engineered specifically for automotive power management-delivering ultra-low IQ, high-voltage resilience, integrated RESET, and AEC-Q100 qualification to simplify design of robust, long-lifecycle ECU power supplies.
FAQ
What output voltage options does the MAX25210ATAB9/V+ support?
The MAX25210ATAB9/V+ supports three output configurations: 3.3V fixed (SETOV = GND), 5V fixed (SETOV = OUT), or adjustable 0.6V–11V (SET = IN/high, SETOV connected to external resistive divider). The device does not ship with factory-programmed voltage-it is configured by external connections at PCB level. All modes maintain 10µA quiescent current and 200mA output capability.
How is the RESET timeout period adjusted on the MAX25210ATAB9/V+?
The MAX25210ATAB9/V+ RESET timeout defaults to 60µs when the TIMEOUT pin is left unconnected. To extend it, connect a low-leakage capacitor (≥100pF, ceramic recommended) from TIMEOUT to GND. Using the formula tRP = (1.25 × CTIMEOUT)/ITO, a 1nF capacitor yields ~1.25ms delay. The internal TIMEOUT ramp current is 1µA typical, enabling precise synchronization with microcontroller power-on reset requirements.
Does the MAX25210ATAB9/V+ require an external pull-up on the RESET pin?
Yes, the MAX25210ATAB9/V+ RESET pin is open-drain and active-low, requiring an external pull-up resistor to a valid logic-high voltage (≥1.5V, typically VCC or 3.3V). Without pull-up, RESET cannot assert high and will float, causing undefined microprocessor behavior. The pull-up value is typically 10kΩ–100kΩ, selected to balance rise time and current consumption during asserted (low) state.
What thermal derating applies to the MAX25210ATAB9/V+ in a 4-layer PCB layout?
On a standard 4-layer PCB with adequate copper pour and thermal vias to inner ground planes, the MAX25210ATAB9/V+ exhibits θJA = 41°C/W. At ambient +85°C and 200mA load with 5V dropout (1V), power dissipation is 200mW, resulting in ~8.2°C junction rise above ambient-well within the +125°C max operating junction limit. Derating begins above +100°C ambient, where output current must be reduced per the thermal curve in the datasheet.
Is the MAX25210ATAB9/V+ pin-compatible with other variants in the MAX25210 family?
Yes, all MAX25210 variants-including MAX25210ATAB9/V+, MAX25210ATAA9/V+, and MAX25210ATAC9/V+-share identical 8-pin TDFN-EP (3mm × 3mm) pinout and footprint. Differences are limited to output current rating (200mA vs. 300mA vs. 100mA) and RESET threshold (93.5% vs. 87.5%), allowing drop-in replacement during design iteration or cost optimization-provided thermal and load requirements remain within the selected variant's specifications.
MAX25210ATAB9/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 3.3V, 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.77V @ 300mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 38 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (100kHz)
- Control Features:
- Enable
- 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)
MAX25210ATAB9/V+ FAQ
1.How can I place an order for MAX25210ATAB9/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX25210ATAB9/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 MAX25210ATAB9/V+ reliable?
The price and inventory of MAX25210ATAB9/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX25210ATAB9/V+ is usually 5 days.
3.What payment methods are accepted for MAX25210ATAB9/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX25210ATAB9/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX25210ATAB9/V+?
MAX25210ATAB9/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX25210ATAB9/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 MAX25210ATAB9/V+?
For technical support, including MAX25210ATAB9/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX25210ATAB9/V+ requirements.
6.How does Aetrix verify that MAX25210ATAB9/V+ is sourced from the original manufacturer or authorized distributors?
All MAX25210ATAB9/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 MAX25210ATAB9/V+ meets industry standards.
7.What is the process for return or replacement of MAX25210ATAB9/V+?
All MAX25210ATAB9/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX25210ATAB9/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 MAX25210ATAB9/V+ part is unused and in its original packaging.
Return procedure for MAX25210ATAB9/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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