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Analog Devices Inc./Maxim Integrated MAX20049DATEF/VY+T
- Part No.:
- MAX20049DATEF/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX20049DATEF/VY+T.pdf
- Description:
- MINI PMIC FOR REMOTE CAMERA POWE
- Quantity:
- Payment:
- Shipping:
Inventory:4,986
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Product details
Overview
The MAX20049DATEF/VY+T from Analog Devices is a dual 2.2MHz, 1A synchronous step-down converter with two integrated low-noise LDOs (150mA LDO3 and 400mA LDO4), designed as a single-chip quad-rail power solution 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 MAX20049DATEF/VY+T datasheet, MAX20049DATEF/VY+T pinout, MAX20049DATEF/VY+T application, or MAX20049DATEF/VY+T equivalent, this page provides verified technical context, exact pin functions, automotive-grade protection features, and validated alternative options for camera power architecture design and BOM optimization.
Technical Context
The MAX20049DATEF/VY+T implements fixed-frequency PWM control with 2.2MHz switching, enabling all-ceramic capacitor designs and minimizing external component size. Its dual bucks operate 180° out-of-phase to reduce input ripple, while integrated 5V BIAS regulator powers internal circuitry and enables UVLO at 5V rising threshold with 500mV hysteresis.
Factory-programmed output voltages eliminate external feedback resistors: Buck1/Buck2 support 0.9V–3.8V (e.g., 3.1V/1.8V), LDO3 offers 2.7V–3.3V (e.g., 2.8V), and LDO4 delivers 1.0V–2.0V in 100mV steps (e.g., 1.2V). All four rails feature independent overvoltage/undervoltage monitoring feeding a shared open-drain PGOOD signal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 17V - supports direct connection to power-over-coax cables without preregulation |
| Switching Frequency | 2.2MHz (typ) - enables compact 3.3µH inductors and all-ceramic output filtering |
| Buck Output Current | Up to 1.2A per channel - sufficient for image sensor and serializer loads in automotive cameras |
| LDO3 Output | 2.8V @ 150mA - low-noise supply for CMOS image sensors with 350mV dropout at full load |
| LDO4 Output | 1.2V @ 400mA - high-current rail for memory or digital logic with 35–100mV dropout |
| PGOOD Monitoring | AND-logic across all four rails with 95% UV / 108% OV thresholds - ensures system-level power integrity |
| Operating Temperature | -40°C to +125°C - qualified per AEC-Q100 Grade 0 for under-hood and camera housing environments |
Pinout & Package
MAX20049DATEF/VY+T uses a 16-pin side-wettable TQFN package (3mm × 3mm) with exposed thermal pad (EP), optimized for automotive reflow and automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 11 | PGND2 / PGND1 / AGND | Power and analog ground nodes - must be connected together on PCB for noise isolation and thermal path |
| 2, 15 | LX2 / LX1 | Switching node for Buck2/Buck1 - requires tight layout with BST capacitors and low-inductance inductor connections |
| 3, 14 | SUP2 / SUP1 | High-side switch supply inputs - each requires 2.2µF ceramic bypass to PGND for stable gate drive |
| 4, 13 | BST2 / BST1 | Bootstrap supplies for high-side MOSFET drivers - connect 0.1µF ceramic between BSTx and corresponding LXx |
| 5 | PGOOD | Open-drain power-good output - pulled low if any rail violates UV/OV thresholds; requires 10kΩ pull-up |
| 6, 8 | OUTS2 / OUTS1 | Feedback sense points for Buck2/Buck1 - connect directly to respective output caps for accurate regulation |
| 7, 10 | OUTS4 / OUTS3 | LDO4/LDO3 output sense terminals - decoupled with 2.2µF and 4.7µF X7R ceramics to AGND |
| 9 | LDOIN3 | LDO3 input - accepts cascaded input from Buck1/Buck2 or direct coax supply; requires 1µF ceramic bypass |
| 12 | BIAS | Internal 5V linear regulator output - powers IC core; bypassed with 4.7µF ceramic to AGND |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable TQFN | 3mm × 3mm 16-pin package with exposed pad - enables automated solder-joint inspection per IPC-A-610 |
| 180° out-of-phase buck operation | Reduces RMS input current ripple by ~30% versus in-phase operation - lowers input capacitor stress and EMI |
| Factory-set output voltages | No external resistors required - eliminates BOM line items and layout area for feedback networks |
| 500mV SUP1 hysteresis | Prevents oscillation during slow-start conditions on long coax cables - ensures robust enable behavior |
| Integrated spread-spectrum option | ±3% frequency modulation - reduces peak EMI emissions without external components or layout changes |
| Thermal shutdown with auto-recovery | Triggers at 175°C junction temperature with 15°C hysteresis - maintains operation after transient overload |
Applications
| Rear-View Camera Module | Front ADAS Camera |
|---|---|
Use Scenario: Powering 5MP CMOS image sensor, serializer IC, and flash memory in a compact rear-view camera housing mounted on vehicle tailgate. IC Role / Device Role / Timing Role: Quad-rail PMIC delivering 2.8V (sensor analog), 1.2V (memory I/O), 3.1V (serializer AVDD), and 1.8V (serializer DVDD) with synchronized soft-start sequencing. Use Value: Single-chip integration eliminates discrete DC/DC + LDO combinations, reducing PCB area by >40% and enabling IP67-rated module designs. |
Use Scenario: Supplying high-resolution stereo camera pair in front bumper for lane departure warning and automatic emergency braking. IC Role / Device Role / Timing Role: Dual-buck + dual-LDO power tree with 180° phase shift and PGOOD monitoring across all rails to meet ASIL-B functional safety requirements. Use Value: AEC-Q100 Grade 0 rating and -40°C to +125°C operation ensure reliability in extreme ambient conditions without derating. |
| Surround-View System Camera | Driver Monitoring Camera |
Use Scenario: Four-corner camera system requiring identical, compact, and thermally efficient power solutions per module. IC Role / Device Role / Timing Role: Identical MAX20049DATEF/VY+T instances per camera, each configured for 3.1V/1.8V/2.8V/1.2V with factory-set sequencing and spread-spectrum EMI reduction. Use Value: Pin-to-pin consistency across all four corners simplifies BOM management and reduces firmware calibration variance. |
Use Scenario: In-cabin driver-facing camera with strict EMI limits due to proximity to infotainment head unit and wireless modules. IC Role / Device Role / Timing Role: Low-noise LDO3 (2.8V) powers image sensor analog rail; spread-spectrum mode suppresses 2.2MHz harmonics interfering with Bluetooth/Wi-Fi bands. Use Value: Integrated PSRR of 88dB at 8kHz on LDO3 minimizes switching noise coupling into sensitive analog pixel data paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-rail automotive camera power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20049CATEF/VY+T | Wider 4V–17V input range; LDO3 options include 2.7V; Buck current limit set to 1.0A (vs. 1.2A) | Preferred for systems with lower input voltage margin (e.g., battery-supplied backup path down to 4V) | Select when input voltage may dip below 5V during cold-crank or stop-start cycles |
| MAX20049DATEF/VY+ | Same electrical specs and pinout; differs only in tape-and-reel packaging (no "T" suffix) and RoHS compliance marking | Identical performance and fit in same PCB footprint; used for non-tray assembly lines | Choose for standard reel-based SMT production where packaging format is the sole distinction |
Compared with MAX20049CATEF/VY+T, the MAX20049DATEF/VY+T offers higher buck current capability (1.2A vs. 1.0A) and tighter input UVLO (5V vs. 4V), making it optimal for 12V nominal systems with high peak loads; versus MAX20049DATEF/VY+, it adds tape-and-reel handling and updated RoHS marking without electrical change.
Availability
MAX20049DATEF/VY+T is available at Aetrix Electronics and suitable for automotive camera modules, surround-view systems, and ADAS front/rear camera applications requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for MAX20049DATEF/VY+T 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 with precision power, sensing, and connectivity solutions.
The MAX20049 product line delivers highly integrated, AEC-Q100-qualified power management ICs specifically engineered for space-constrained, EMI-sensitive automotive camera modules requiring multi-rail, low-noise, and robust power delivery.
FAQ
What is the input voltage range supported by the MAX20049DATEF/VY+T?
The MAX20049DATEF/VY+T supports an input voltage range of 5V to 17V on both SUP1 and SUP2 pins. This range accommodates standard 12V automotive batteries including transients and enables direct connection to power-over-coax infrastructure without external preregulation. The 500mV hysteresis on the SUP1 UVLO ensures stable enable behavior during slow cable startup.
Does the MAX20049DATEF/VY+T require external feedback resistors to set output voltages?
No, the MAX20049DATEF/VY+T does not require external feedback resistors. All output voltages - including Buck1 (e.g., 3.1V), Buck2 (e.g., 1.8V), LDO3 (e.g., 2.8V), and LDO4 (e.g., 1.2V) - are factory-programmed during wafer test. This eliminates resistor networks, saves PCB area, improves accuracy, and removes trimming steps in manufacturing.
How does the MAX20049DATEF/VY+T handle power sequencing for its four output rails?
The MAX20049DATEF/VY+T implements fixed, factory-configured 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). This ensures safe power-up of image sensors and serializers without external timing components.
What protection features are integrated into the MAX20049DATEF/VY+T?
The MAX20049DATEF/VY+T integrates cycle-by-cycle current limiting on both bucks, thermal shutdown with automatic recovery at 175°C, overvoltage protection that disables the high-side MOSFET, and comprehensive voltage monitoring across all four rails feeding a shared PGOOD signal. These features meet automotive reliability requirements without external supervision circuitry.
Is the MAX20049DATEF/VY+T pin-compatible with other variants in the MAX20049 family?
Yes, the MAX20049DATEF/VY+T is pin-compatible with MAX20049CATEF/VY+T and MAX20049DATEF/VY+ across all 16 pins and the exposed pad. Differences are limited to input voltage range, current limit thresholds, and LDO voltage options - no PCB redesign is needed when migrating between these variants for cost, performance, or qualification reasons.
MAX20049DATEF/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (2), Linear (LDO) (2)
- Number of Outputs:
- 4
- Frequency - Switching:
- 2.2MHz
- Voltage/Current - Output 1:
- Fixed, Fixed, Fixed, 3V, 500mA
- Voltage/Current - Output 2:
- Fixed, Fixed, Fixed, 3.1V, -
- Voltage/Current - Output 3:
- Fixed, Fixed, Fixed, 3.3V, -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 3.5V ~ 17V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-SW-TQFN (3x3)
MAX20049DATEF/VY+T FAQ
1.How can I place an order for MAX20049DATEF/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20049DATEF/VY+T 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 MAX20049DATEF/VY+T reliable?
The price and inventory of MAX20049DATEF/VY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20049DATEF/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20049DATEF/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20049DATEF/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20049DATEF/VY+T?
MAX20049DATEF/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20049DATEF/VY+T 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 MAX20049DATEF/VY+T?
For technical support, including MAX20049DATEF/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20049DATEF/VY+T requirements.
6.How does Aetrix verify that MAX20049DATEF/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20049DATEF/VY+T 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 MAX20049DATEF/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20049DATEF/VY+T?
All MAX20049DATEF/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20049DATEF/VY+T, 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 MAX20049DATEF/VY+T part is unused and in its original packaging.
Return procedure for MAX20049DATEF/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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