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Analog Devices Inc./Maxim Integrated MAX20049DATEK/VY+
- Part No.:
- MAX20049DATEK/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX20049DATEK/VY+.pdf
- Description:
- MINI PMIC FOR REMOTE CAMERA POWE
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
MAX20049DATEK/VY+ from Analog Devices is a dual 2.2MHz, 1A synchronous step-down converter with dual integrated LDOs (150mA LDO3 and 400mA LDO4), designed as a single-chip quad-rail power supply for automotive camera modules. It operates from 5V to 17V input, delivers factory-set outputs including 3.1V/1.8V/2.8V/1.2V, and integrates voltage monitoring, 180° out-of-phase buck operation, and AEC-Q100 qualification for rear/front/surround-view systems.
For engineers reviewing the MAX20049DATEK/VY+ datasheet, MAX20049DATEK/VY+ pinout, MAX20049DATEK/VY+ application, or MAX20049DATEK/VY+ equivalent, key selection considerations include its 3mm × 3mm side-wettable TQFN package, 500mV SUP1 hysteresis for long coax cable support, fixed-output factory programming, spread-spectrum EMI reduction, and integrated overvoltage/undervoltage monitoring across all four rails.
Technical Context
The MAX20049DATEK/VY+ implements two independent PWM-controlled buck converters operating at 2.2MHz (±3% spread-spectrum option) with 180° phase shift to minimize input ripple. Each buck supports 0.9V–3.8V output with ±2% accuracy and features cycle-by-cycle current limiting, thermal shutdown with 15°C hysteresis, and low on-time architecture enabling direct 17V-to-0.9V conversion without preregulation.
It integrates two dedicated LDOs: LDO3 (150mA, 2.7V–3.3V, 350mV dropout at 100mA) powered from SUP1 or cascaded from Buck1/Buck2, and LDO4 (400mA, 1.0V–2.0V, 35mV dropout at 400mA) powered from Buck2. All four outputs are continuously monitored; PGOOD asserts open-drain low on any rail's OV/UV violation with 50µs debounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 17V - supports direct connection to automotive power-over-coax cables without external pre-regulation |
| Switching Frequency | 2.2MHz (typ), ±3% spread-spectrum - enables compact all-ceramic filter design and reduces EMI peak emissions |
| Buck Output Current | Up to 1.2A per channel - sufficient for image sensor core and serializer loads in 5MP+ camera modules |
| LDO3 Output | 2.8V (factory-set), 150mA, ±2% accuracy - powers CMOS image sensors requiring low-noise, high-PSRR supply |
| LDO4 Output | 1.2V (factory-set), 400mA, 35mV dropout - supplies low-voltage digital logic (e.g., serializer memory interface) with minimal headroom loss |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 0 for under-hood and exterior camera mounting |
| Package | 16-pin side-wettable TQFN (3mm × 3mm, exposed pad) - supports automated optical inspection (AOI) and robust solder joint reliability in automotive reflow |
Pinout & Package
MAX20049DATEK/VY+ is housed in a 16-pin side-wettable TQFN package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (EP) connected to PCB ground plane for enhanced thermal dissipation. The package complies with JEDEC MO-220 and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 11 | PGND2 / PGND1 / AGND | Power and analog ground reference - must be connected together at single-point star ground for noise isolation |
| 2, 15 | LX2 / LX1 | High-side switch node for Buck2/Buck1 - connects to external inductor; requires tight layout and 0.1µF BST capacitor |
| 3, 14 | SUP2 / SUP1 | High-voltage input supply for Buck2/Buck1 - each requires 2.2µF ceramic decoupling to PGND |
| 4, 13 | BST2 / BST1 | Bootstrap supply for high-side gate driver - requires 0.1µF ceramic capacitor between BSTx and corresponding LXx |
| 5 | PGOOD | Open-drain power-good monitor - pulls low if any output violates OV/UV thresholds; requires external 10kΩ pull-up |
| 6, 8 | OUTS2 / OUTS1 | Feedback sense inputs for Buck2/Buck1 - connect directly to respective output capacitors for accurate regulation |
| 7, 10 | OUTS4 / OUTS3 | LDO4/LDO3 output sense - connect to respective LDO output capacitors (2.2µF and 4.7µF ceramic) |
| 9 | LDOIN3 | LDO3 input - accepts input from SUP1 (for PoC) or Buck1/Buck2 output; requires 1µF ceramic bypass |
| 12 | BIAS | Internal 5V linear regulator output - powers internal circuitry; requires 4.7µF ceramic bypass to AGND |
Key Features
| Feature | Design Value |
|---|---|
| Single-chip quad-rail solution | Integrates two 1.2A bucks + two LDOs (150mA/400mA) in one die - eliminates discrete PMIC + LDO combinations and reduces BOM count by ≥4 ICs |
| Factory-programmed output voltages | Eliminates external feedback resistors - ensures consistent 3.1V/1.8V/2.8V/1.2V outputs across production lots and simplifies layout |
| 500mV SUP1 hysteresis | Enables stable startup over long, low-cost coaxial cables with significant IR drop - prevents oscillation during slow ramp-up |
| 180° out-of-phase buck operation | Reduces RMS input current ripple by ~30% versus in-phase operation - allows smaller input bulk capacitance and lower EMI filter cost |
| AEC-Q100 Grade 0 qualification | Validated for −40°C to +125°C ambient operation with full electrical characterization - meets automotive camera module reliability requirements |
Applications
| Rear-View Camera Module | Front ADAS Camera |
|---|---|
|
Use Scenario: Compact 12V-powered rear-view camera mounted on vehicle tailgate, transmitting video over coax to display unit. IC Role / Device Role / Timing Role: Quad-rail power manager delivering 3.1V (image sensor), 1.8V (serializer), 2.8V (LDO3 for analog front-end), and 1.2V (memory interface). Use Value: 500mV SUP1 hysteresis tolerates >2m coax cable voltage drop; side-wettable TQFN ensures AOI-compatible assembly in high-volume automotive SMT lines. |
Use Scenario: High-resolution front-facing camera for lane departure warning and automatic emergency braking, mounted behind windshield. IC Role / Device Role / Timing Role: Primary power IC providing sequenced, monitored rails to CMOS sensor, ISP, and SerDes with thermal protection up to +125°C ambient. Use Value: 180° buck phasing minimizes input ripple on shared 12V bus; integrated PGOOD enables system-level fault detection before video processing starts. |
| Surround-View System Camera | Driver Monitoring Camera |
|
Use Scenario: Four-corner surround-view camera node requiring identical, compact, and thermally robust power delivery. IC Role / Device Role / Timing Role: Identical quad-rail supply per camera, with factory-set 2.8V/1.2V outputs and synchronized soft-start sequencing. Use Value: Fixed-output configuration eliminates calibration variance; spread-spectrum mode reduces EMI coupling into adjacent camera video signals. |
Use Scenario: In-cabin driver monitoring camera operating near HVAC vents, subject to rapid temperature transients. IC Role / Device Role / Timing Role: Power source for low-light NIR sensor and embedded microcontroller, with undervoltage lockout and thermal recovery. Use Value: −40°C to +125°C operation and automatic thermal recovery ensure continuous function during cabin heating/cooling cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-rail automotive camera power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20049CATEK/VY+ | Wider 4V–17V input range; same 2.2MHz switching, LDO specs, and pinout | Preferred for systems with lower minimum input (e.g., start-stop battery sag below 5V) | Select when input may dip below 5V during cranking; otherwise MAX20049DATEK/VY+ offers tighter UVLO threshold stability |
| TPS653211QRGZRQ1 | Triple buck + dual LDO, 2.1MHz, 3.0V–36V input, but no spread-spectrum or side-wettable package | Supports higher input (e.g., 24V commercial vehicles); larger 4mm × 4mm QFN package | Choose for 24V platforms or where extended input range outweighs EMI and AOI advantages of MAX20049DATEK/VY+ |
Compared with MAX20049CATEK/VY+, the MAX20049DATEK/VY+ provides superior input voltage threshold stability for 12V-only systems; compared with TPS653211QRGZRQ1, it delivers better EMI performance and manufacturability in space-constrained automotive camera modules.
Availability
MAX20049DATEK/VY+ is available at Aetrix Electronics and suitable for automotive camera modules, ADAS vision systems, and surround-view ECUs requiring stable component supply, AEC-Q100 compliance, and compact quad-rail power integration.
Supply support for MAX20049DATEK/VY+ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and consumer markets.
The MAX20049DATEK/VY+ belongs to Analog Devices' automotive power management portfolio, engineered specifically to consolidate multi-rail camera power delivery while meeting stringent EMI, thermal, and functional safety requirements.
FAQ
What is the input voltage range supported by the MAX20049DATEK/VY+?
The MAX20049DATEK/VY+ supports an input voltage range of 5V to 17V on both SUP1 and SUP2 pins. This range is optimized for 12V automotive battery systems and accommodates voltage variations due to load dump or cold-crank conditions. The device includes 500mV hysteresis on the SUP1 UVLO to maintain stable operation over long coaxial cables with significant IR drop.
How are output voltages configured on the MAX20049DATEK/VY+?
Output voltages on the MAX20049DATEK/VY+ are factory-programmed and not adjustable externally. The standard configuration includes 3.1V for Buck1, 1.8V for Buck2, 2.8V for LDO3, and 1.2V for LDO4. These values are laser-trimmed during production, eliminating the need for external feedback resistors and ensuring ±2% accuracy across temperature and load.
Does the MAX20049DATEK/VY+ support power sequencing between its rails?
Yes, the MAX20049DATEK/VY+ implements fixed internal power sequencing: Buck1 starts first (3V/ms ramp), followed by LDO3 (100µs soft-start), then Buck2 (gated by Buck1 regulation), and finally LDO4 (120µs soft-start triggered by Buck2 regulation). Sequencing is factory-programmed and cannot be altered externally, ensuring repeatable startup behavior in automotive camera modules.
What protection features does the MAX20049DATEK/VY+ include?
The MAX20049DATEK/VY+ integrates cycle-by-cycle current limiting on both bucks, thermal shutdown with automatic recovery at +175°C (15°C hysteresis), overvoltage protection that disables the high-side MOSFET, and comprehensive rail monitoring with PGOOD assertion on any OV/UV violation. All four outputs are monitored independently with programmable thresholds and 50µs debounce.
Is the MAX20049DATEK/VY+ compatible with power-over-coax (PoC) architectures?
Yes, the MAX20049DATEK/VY+ is explicitly designed for PoC camera systems. Its 5V–17V input range, 500mV SUP1 hysteresis, and LDOIN3 pin accepting direct connection from coax-fed SUP1 enable robust operation over long, low-cost coaxial cables. LDO3 can be powered directly from SUP1 to deliver low-noise 2.8V to image sensors without intermediate regulation.
MAX20049DATEK/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Converter, Digital Still Cameras
- Voltage - Input:
- 5V ~ 17V
- Number of Outputs:
- 4
- Voltage - Output:
- 1.2V, 1.8V, 3.3V, 3.8V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-SW-TQFN (3x3)
MAX20049DATEK/VY+ FAQ
1.How can I place an order for MAX20049DATEK/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20049DATEK/VY+ 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 MAX20049DATEK/VY+ reliable?
The price and inventory of MAX20049DATEK/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20049DATEK/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20049DATEK/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20049DATEK/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20049DATEK/VY+?
MAX20049DATEK/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20049DATEK/VY+ 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 MAX20049DATEK/VY+?
For technical support, including MAX20049DATEK/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20049DATEK/VY+ requirements.
6.How does Aetrix verify that MAX20049DATEK/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20049DATEK/VY+ 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 MAX20049DATEK/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20049DATEK/VY+?
All MAX20049DATEK/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20049DATEK/VY+, 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 MAX20049DATEK/VY+ part is unused and in its original packaging.
Return procedure for MAX20049DATEK/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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