My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20002ATPA/V+W
- Part No.:
- MAX20002ATPA/V+W
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX20002ATPA/V+W.pdf
- Description:
- IC REG BUCK PROG/1V 2A 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,502
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20002ATPA/V+W from Maxim Integrated is a 2A, synchronous step-down DC-DC 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 skip mode, 220kHz–2.2MHz resistor-programmable switching frequency, and AEC-Q100 qualification for automotive power rails.
For engineers reviewing the MAX20002ATPA/V+W datasheet, MAX20002ATPA/V+W pinout, MAX20002ATPA/V+W application, or MAX20002ATPA/V+W equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade protection features (42V load-dump, -40°C to +125°C), and real-world design trade-offs between forced-PWM and skip-mode operation.
Technical Context
The MAX20002ATPA/V+W implements current-mode control with internal transconductance error amplifier (700µS), 8ms fixed soft-start, and cycle-by-cycle overcurrent protection. Its dual-supply architecture separates SUP (bias regulator input) and SUPSW (high-side switch supply), enabling stable operation during cold-crank transients down to 3.5V.
It supports three operational modes: skip mode (15µA IQ), forced-PWM (fixed-frequency), and external synchronization via FSYNC pin. Spread-spectrum modulation (±3% around FOSC, 110µs period at 2.2MHz) is enabled by pulling SPS high, reducing EMI without altering regulation accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous - supports automotive infotainment SoC core rails and ADAS sensor power domains |
| Input Voltage Range | 3.5V to 36V - covers full automotive battery range including cold-crank (≤4.5V) and load-dump (≤42V) |
| Quiescent Current | 15µA in skip mode - enables always-on systems (e.g., CAN wake-up receivers) without battery drain |
| Switching Frequency | 220kHz to 2.2MHz (resistor-programmable) - allows optimization of inductor size vs. efficiency (e.g., 2.2MHz → smaller 2.2µH inductor) |
| Output Accuracy | ±2% for fixed 5V/3.3V outputs - ensures reliable logic-level compliance for MCU, FPGA, and interface ICs |
| Thermal Protection | 175°C shutdown with 15°C hysteresis - prevents latch-up during sustained overload in enclosed ECUs |
| PGOOD Threshold | 95% VOUT rising / 92.5% VOUT falling - provides precise power sequencing margin for downstream regulators |
Pinout & Package
MAX20002ATPA/V+W is housed in a 20-pin 5mm × 5mm TQFN package with exposed pad (EP), optimized for thermal dissipation in automotive under-hood environments. The package uses JEDEC MS-013AC outline (21-0140) and requires soldering per JESD22-A113 (260°C reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FOSC | Frequency-setting input | Resistor-to-AGND sets switching frequency; 12kΩ = 2.2MHz - critical for EMI filtering and inductor selection |
| OUT | Power output node | Delivers regulated voltage; also powers internal circuitry when VOUT ≥ 3V in skip mode - eliminates need for separate bias rail |
| FB | Feedback sensing input | Connects to resistive divider (1V reference) or directly to BIAS for fixed 5V/3.3V - determines output setpoint with ±1% FB accuracy |
| COMP | Error amplifier output | External RC compensation network stabilizes loop; required for transient response tuning in automotive load steps |
| BIAS | Internal LDO output | 5V ±5% linear regulator powering analog blocks; bypassed with ≥2.2µF ceramic capacitor - essential for startup reliability |
| EN | High-voltage enable input | 2.4V threshold, 3.5V–36V compatible - allows direct connection to KL30 or CAN transceiver INH pin without level-shifting |
| SUPSW | High-side switch supply | Separate input for gate driver; bypassed with 0.1µF + 4.7µF ceramics - isolates switching noise from bias supply |
| SUP | Main supply input | Powers internal bias regulator; bypassed with 2.2µF ceramic - decouples input ripple from control circuitry |
| PGOOD | Open-drain status output | Asserts high when VOUT > 95% target; pulled up externally - used for system power sequencing and fault detection |
| SPS | Spread-spectrum control | Logic-high enables ±3% frequency dithering - reduces peak EMI without affecting regulation or efficiency |
| LX (pins 16–18) | Switching node | Three parallel pins reduce trace inductance and thermal resistance - critical for 2A continuous conduction mode |
| PGND (pins 13–14) | Power ground return | Dedicated low-impedance path for high di/dt currents - must be connected to EP and separated from AGND at single point |
| BST | Bootstrap supply | Connected via 0.1µF capacitor to LX - generates gate drive voltage for high-side MOSFET; layout-sensitive |
| FSYNC | Sync mode selector | Ground = skip mode; BIAS or external clock = forced-PWM - enables deterministic EMI control in multi-rail systems |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-/low-side MOSFETs | RON_H = 60–140mΩ / RON_L = 35–70mΩ - eliminates external FETs and gate drivers, reducing BOM count and PCB area |
| 99% maximum duty cycle | Enables operation during undervoltage transients (e.g., cold crank at 4.2V → 3.3V output) without dropout - critical for automotive safety systems |
| AEC-Q100 Grade-1 qualification | -40°C to +125°C ambient operation with 150°C junction limit - certified for engine bay and transmission control units |
| 42V load-dump protection | Withstands ISO 7637-2 Pulse 5a without external TVS - reduces system-level protection component count |
| Fixed 8ms soft-start | Prevents inrush current into large output capacitors (e.g., 44µF ceramic banks) - avoids supply brownout during power-up |
| Overvoltage protection (OVP) | 107% VOUT trip threshold with fast recovery - protects downstream 3.3V/5V logic from transient overshoot during load dump |
Applications
| Automotive Infotainment Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers SoC, display controller, and audio codec in head-unit systems requiring clean 5V/3.3V rails with low standby current. IC Role / Device Role / Timing Role: Primary buck regulator supplying core logic voltage; PGOOD coordinates with MCU reset sequencing. Use Value: 15µA skip-mode IQ extends battery life during vehicle sleep mode; 2.2MHz operation enables compact 2.2µH inductor and <10mm² solution size. |
Use Scenario: Supplies image sensor and ISP in rear-view or surround-view cameras exposed to wide temperature swings and vibration. IC Role / Device Role / Timing Role: Point-of-load regulator delivering stable 3.3V to CIS interface; thermal shutdown prevents field failure in sealed housings. Use Value: -40°C to +125°C operation and 42V load-dump tolerance eliminate need for external protection; exposed pad ensures thermal stability at 85°C ambient. |
| Body Control Module (BCM) Sub-Rail | Telematics Control Unit (TCU) Power |
Use Scenario: Generates isolated 5V rail for LIN transceivers, door lock actuators, and interior lighting controllers in distributed body electronics. IC Role / Device Role / Timing Role: Secondary buck converter fed from main 12V battery rail; EN pin tied to ignition-switched KL15 for automatic on/off. Use Value: High-voltage EN input (3.5V–36V) allows direct KL15 connection; spread-spectrum mode reduces conducted EMI across LIN bus wiring. |
Use Scenario: Powers cellular modem, GNSS receiver, and CAN FD controller in telematics gateways requiring always-on connectivity. IC Role / Device Role / Timing Role: Always-on buck regulator maintaining 3.3V for RTC and wake-up logic; PGOOD signals host processor upon valid power-up. Use Value: 15µA IQ enables >10-year battery backup life; AEC-Q100 qualification ensures reliability across global vehicle fleets and OTA update cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480RQWR | 3.5V–36V input, 4A output, 20µA IQ, no integrated spread spectrum | Higher current capability but larger 4mm × 5mm QFN package; lacks SPS pin for EMI reduction | Select when >2A load or lower cost is prioritized over EMI certification margin |
| TPS54240DGQR | 3.5V–42V input, 2A output, 110µA IQ, external MOSFETs required | Requires discrete high-/low-side FETs and gate drivers; higher board area and design complexity | Select only if legacy design reuse or specific thermal layout constraints prevent TQFN adoption |
Compared with LM61480RQWR and TPS54240DGQR, the MAX20002ATPA/V+W offers superior EMI control via integrated spread-spectrum, smallest footprint (5mm × 5mm), and lowest quiescent current - making it optimal for space-constrained, battery-sensitive automotive modules where regulatory EMI limits are tight.
Availability
MAX20002ATPA/V+W is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, body control units, telematics gateways, and industrial DC power systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX20002ATPA/V+W 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, with emphasis on high-reliability, AEC-Q100-qualified solutions.
The MAX20002/MAX20003 product line targets automotive power conversion with integrated FETs, ultra-low IQ, and robust transient handling - specifically engineered for infotainment, ADAS, and body electronics where space, thermal, and EMC constraints dominate.
FAQ
What is the maximum output current rating for the MAX20002ATPA/V+W?
The MAX20002ATPA/V+W is rated for 2A continuous output current under typical conditions (TA ≤ +70°C, 2-layer board). Derating applies above +70°C (33.3mW/°C), and peak current capability reaches 3.33A before cycle-by-cycle current limit triggers. This rating is validated across the full -40°C to +125°C automotive temperature range with proper thermal layout using the exposed pad.
Does the MAX20002ATPA/V+W support adjustable output voltage, and how is it configured?
Yes, the MAX20002ATPA/V+W supports output voltages from 1V to 10V using an external resistive divider from OUT to FB to AGND, with VFB = 1V ±1% reference. For fixed 5V or 3.3V operation, connect FB directly to BIAS. The feedback network must use RFB2 ≤ 500kΩ; RFB1 is calculated as RFB1 = RFB2 × (VOUT/1V − 1). This configuration is confirmed in the Electrical Characteristics table and Figure 2 of the datasheet.
How does the MAX20002ATPA/V+W handle automotive cold-crank conditions?
The MAX20002ATPA/V+W maintains regulation during cold-crank (input down to 3.5V) by operating at up to 99% duty cycle, minimizing dropout. Its dual-supply architecture (SUP and SUPSW) ensures internal bias remains active even when input dips below the output voltage. The device enters high-duty-cycle mode automatically - no external control needed - and resumes normal PWM operation once input recovers, as verified in the "Cold Crank" test waveform (toc20).
What is the purpose of the SPS pin on the MAX20002ATPA/V+W, and how is it used?
SPS (Spread-Spectrum) is a logic-input pin that enables ±3% frequency dithering centered on the programmed FOSC value to reduce EMI peaks. Pulling SPS high activates spread spectrum; pulling low disables it. The modulation period scales with FOSC (e.g., 110µs at 2.2MHz, 550µs at 400kHz). Spread spectrum is automatically disabled when FSYNC is used for external synchronization, as documented in the "Spread-Spectrum Option" section.
Is the MAX20002ATPA/V+W AEC-Q100 qualified, and which grade does it meet?
Yes, the MAX20002ATPA/V+W is AEC-Q100 qualified per Grade 1 requirements, supporting operation from -40°C to +125°C ambient temperature. This qualification is explicitly stated in the "Benefits and Features" section and confirmed in the Absolute Maximum Ratings table. The device meets all stress tests including HTOL, TC, UHAST, and ESD per AEC-Q100 Rev H, making it suitable for under-hood and cabin ECU applications.
MAX20002ATPA/V+W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1V (5V)
- Voltage - Output (Max):
- 10V
- Current - Output:
- 2A
- Frequency - Switching:
- 220kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX20002ATPA/V+W FAQ
1.How can I place an order for MAX20002ATPA/V+W through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20002ATPA/V+W 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 MAX20002ATPA/V+W reliable?
The price and inventory of MAX20002ATPA/V+W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20002ATPA/V+W is usually 5 days.
3.What payment methods are accepted for MAX20002ATPA/V+W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20002ATPA/V+W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20002ATPA/V+W?
MAX20002ATPA/V+W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20002ATPA/V+W 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 MAX20002ATPA/V+W?
For technical support, including MAX20002ATPA/V+W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20002ATPA/V+W requirements.
6.How does Aetrix verify that MAX20002ATPA/V+W is sourced from the original manufacturer or authorized distributors?
All MAX20002ATPA/V+W 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 MAX20002ATPA/V+W meets industry standards.
7.What is the process for return or replacement of MAX20002ATPA/V+W?
All MAX20002ATPA/V+W units undergo pre-shipment inspection (PSI). If there is an issue with MAX20002ATPA/V+W, 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 MAX20002ATPA/V+W part is unused and in its original packaging.
Return procedure for MAX20002ATPA/V+W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20002ATPA/V+W Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
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…
