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Analog Devices Inc./Maxim Integrated MAX20002DATPA/V+
- Part No.:
- MAX20002DATPA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
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MAX20002DATPA/V+.pdf
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Product details
Overview
The MAX20002DATPA/V+ from Maxim Integrated is a 2A synchronous buck converter with integrated high-side and low-side MOSFETs, operating from 3.5V to 36V input and delivering fixed 5V/3.3V or adjustable 1V–10V output. It features 15µA quiescent current in standby, 99% maximum duty cycle for automotive cold-crank support, and AEC-Q100 qualification for under-hood deployment in navigation units and radio head units.
For engineers reviewing the MAX20002DATPA/V+ datasheet, MAX20002DATPA/V+ pinout, MAX20002DATPA/V+ application, or MAX20002DATPA/V+ equivalent, key selection criteria include its 2A output capability, 220kHz–2.2MHz resistor-programmable switching frequency, ±2% fixed-output accuracy, spread-spectrum enablement via SPS pin, and 42V load-dump protection - all critical for robust automotive power design.
Technical Context
This current-mode buck regulator integrates dual MOSFETs and a 5V BIAS linear regulator, enabling self-powered operation without external bias supplies. Its control architecture supports both forced PWM (via FSYNC) and skip mode, with PGOOD monitoring and internal soft-start (8ms) simplifying power sequencing in multi-rail systems.
Thermal shutdown at 175°C with 15°C hysteresis, cycle-by-cycle current limiting (3.33A typ), and fast overvoltage protection (107% VFB threshold) ensure reliability during automotive transients. The device enters dropout at up to 99% duty cycle and maintains regulation down to 3.5V input - validated across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous - supports point-of-load rails for infotainment processors and sensors. |
| Input Voltage Range | 3.5V to 36V - covers full automotive battery range including cold crank (≥3.5V) and load dump (≤42V). |
| Quiescent Current | 15µA standby - enables always-on functionality in vehicle security and telematics modules. |
| Switching Frequency | 220kHz–2.2MHz (resistor-programmable) - allows optimization of inductor size vs. EMI in space-constrained head units. |
| Output Accuracy | ±2% for fixed 5V/3.3V outputs - ensures stable MCU core voltage without external trimming. |
| Protection Features | 42V load-dump tolerance, thermal shutdown (175°C), OVP (107% VFB), and cycle-by-cycle current limit - meets ISO 7637-2 pulse requirements. |
| Operating Temperature | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-dash and engine-bay mounting. |
Pinout & Package
MAX20002DATPA/V+ is housed in a 5mm × 5mm, 20-pin TQFN package with exposed thermal pad (EP), optimized for high-power density and thermal dissipation in automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FOSC | Frequency-setting input | Resistor-to-ground sets switching frequency (220kHz–2.2MHz); enables EMI tuning without changing layout. |
| OUT | Power output node | Delivers regulated DC output; powers internal circuitry when VOUT = 3V–5V in standby mode. |
| FB | Feedback sensing input | Connects to resistive divider for adjustable output (1V–10V) or to BIAS for fixed 5V/3.3V - ±1% FB reference accuracy. |
| COMP | Error amplifier output | External RC compensation network stabilizes current-mode loop; supports ceramic output capacitors. |
| BIAS | Internal LDO output | 5V ±5% regulated supply for internal logic; requires ≥2.2µF ceramic bypass to AGND. |
| EN | High-voltage enable input | Logic-compatible with 3.5V–36V inputs (e.g., KL30, CAN INH); 2.4V threshold enables direct battery tie. |
| PGOOD | Open-drain status flag | Asserts high when VOUT > 95% regulation; deasserts at 92.5% - enables safe power sequencing with downstream ICs. |
| LX (pins 16–18) | Switching node | Drives external inductor; three parallel pins reduce trace inductance and improve thermal performance. |
| SPS | Spread-spectrum control | Pull-high enables ±3% frequency modulation - reduces peak EMI without altering component count. |
| FSYNC | Mode and sync input | Ground = skip mode; connect to BIAS/external clock = forced PWM - eliminates frequency jitter in noise-sensitive audio paths. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck with integrated FETs | Eliminates external MOSFETs and gate drivers - reduces BOM count and layout area by >30% vs. controller-based solutions. |
| 15µA ultra-low IQ standby | Enables always-on functionality in vehicle access modules and ADAS sensors without draining battery during parking. |
| 99% max duty cycle | Maintains regulation during cold-crank events down to 3.5V input - avoids system brownout in start-stop engines. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock - no requalification needed for Tier 1 designs. |
| 42V load-dump protection | Withstands ISO 7637-2 Pulse 5a without external TVS - simplifies front-end protection for 12V/24V systems. |
Applications
| Navigation Systems | Radio Head Units |
|---|---|
|
Use Scenario: Powering display controllers, GPS baseband processors, and touch interface ASICs in automotive center-stack displays. IC Role / Device Role / Timing Role: Primary 5V/3.3V POL regulator supplying core logic and memory interfaces. Use Value: 15µA IQ and AEC-Q100 qualification ensure reliable operation during extended vehicle-off periods and under-hood thermal stress. |
Use Scenario: Generating clean 3.3V for digital signal processors (DSPs), audio codecs, and Bluetooth/Wi-Fi SoCs in OEM infotainment radios. IC Role / Device Role / Timing Role: Main DC-DC stage converting battery voltage to low-noise processor rail with PGOOD sequencing. Use Value: Spread-spectrum mode (via SPS pin) suppresses conducted EMI in sensitive RF/audio bands without added filtering components. |
| Distributed Automotive Power | ADAS Camera Modules |
|
Use Scenario: Local 5V supply for CAN/LIN transceivers, sensor hubs, and body-control module microcontrollers. IC Role / Device Role / Timing Role: Compact, high-efficiency step-down converter replacing discrete buck controllers in space-limited junction boxes. Use Value: 220kHz–2.2MHz programmability allows matching switching frequency to avoid interference with radar or camera clock domains. |
Use Scenario: Providing stable 3.3V to image signal processors (ISPs) and MIPI CSI-2 serializers in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: High-reliability POL regulator with fast transient response and OVP clamping to protect sensitive imaging circuits. Use Value: 107% overvoltage protection and 175°C thermal shutdown prevent damage during hot-plug or short-circuit events in sealed camera housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480RQWR | 3.5A output, 3.5V–36V input, 12µA IQ, but no integrated BIAS LDO or spread-spectrum control. | Requires external 5V bias supply; lacks SPS pin for EMI reduction - less suitable for compact infotainment layouts. | Prefer when higher current (>2A) or lower IQ is primary; verify external bias sourcing and EMI filtering needs. |
| TPS54240DGQR | 2.5A output, 3.5V–42V input, 110µA IQ, external MOSFETs required, no AEC-Q100 qualification. | Higher quiescent current limits always-on use; non-automotive qualification requires additional validation for vehicle deployment. | Consider only for cost-sensitive industrial applications where AEC-Q100 and ultra-low IQ are not required. |
Compared with LM61480RQWR and TPS54240DGQR, the MAX20002DATPA/V+ uniquely integrates BIAS regulation, spread-spectrum EMI control, and AEC-Q100 qualification in a 2A solution - reducing system-level complexity and validation effort for automotive infotainment power rails.
Availability
MAX20002DATPA/V+ is available at Aetrix Electronics and suitable for automotive navigation systems, radio head units, and distributed power architectures requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for MAX20002DATPA/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
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 integration density.
The MAX20002/MAX20003 product line targets automotive power conversion, delivering fully integrated, AEC-Q100-qualified buck regulators with ultra-low IQ, wide VIN range, and advanced EMI mitigation for infotainment and ADAS subsystems.
FAQ
What is the maximum output current rating of the MAX20002DATPA/V+?
The MAX20002DATPA/V+ is rated for 2A continuous output current under specified thermal conditions (TA ≤ +70°C, θJA = 30°C/W). Its LX current limit is 2.5A (min), 3.33A (typ), and 4.16A (max), ensuring robust overload handling in automotive environments where transient loads occur.
Does the MAX20002DATPA/V+ support adjustable output voltage?
Yes, the MAX20002DATPA/V+ supports both fixed 5V/3.3V outputs (by connecting FB to BIAS) and adjustable 1V–10V outputs using an external resistive divider from OUT to FB to AGND. The FB reference voltage is tightly regulated at 1.00V ±1%, enabling precise output setting with ±1% feedback accuracy.
How does the MAX20002DATPA/V+ handle automotive cold-crank conditions?
The MAX20002DATPA/V+ operates down to 3.5V input and supports up to 99% duty cycle, maintaining regulated output during cold-crank events. Its dual supply inputs (SUP and SUPSW) and internal BIAS LDO ensure functional stability even when input voltage dips below the output setpoint - a key requirement for start-stop engine systems.
Is the MAX20002DATPA/V+ qualified for automotive use?
Yes, the MAX20002DATPA/V+ is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with 42V load-dump tolerance, thermal shutdown, and overvoltage protection designed specifically for automotive power rails. It meets ISO 7637-2 transient immunity requirements without external protection components.
What package type and thermal characteristics does the MAX20002DATPA/V+ use?
The MAX20002DATPA/V+ uses a 5mm × 5mm, 20-pin TQFN package with exposed pad (EP), offering θJA = 30°C/W and θJC = 2°C/W. The EP must be soldered to a large contiguous copper ground plane for effective heat dissipation - critical for sustained 2A operation in enclosed automotive enclosures.
MAX20002DATPA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
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- Topology:
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- Output Type:
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- Number of Outputs:
- -
- Voltage - Input (Min):
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- Voltage - Input (Max):
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- Voltage - Output (Min/Fixed):
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- Voltage - Output (Max):
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- Current - Output:
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- Frequency - Switching:
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- Synchronous Rectifier:
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- Supplier Device Package:
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MAX20002DATPA/V+ FAQ
1.How can I place an order for MAX20002DATPA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20002DATPA/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 MAX20002DATPA/V+ reliable?
The price and inventory of MAX20002DATPA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20002DATPA/V+ is usually 5 days.
3.What payment methods are accepted for MAX20002DATPA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20002DATPA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20002DATPA/V+?
MAX20002DATPA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20002DATPA/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 MAX20002DATPA/V+?
For technical support, including MAX20002DATPA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20002DATPA/V+ requirements.
6.How does Aetrix verify that MAX20002DATPA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20002DATPA/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 MAX20002DATPA/V+ meets industry standards.
7.What is the process for return or replacement of MAX20002DATPA/V+?
All MAX20002DATPA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20002DATPA/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 MAX20002DATPA/V+ part is unused and in its original packaging.
Return procedure for MAX20002DATPA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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