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Analog Devices Inc./Maxim Integrated MAX16993AGJL/VY+
- Part No.:
- MAX16993AGJL/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJL/VY+.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,297
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Product details
Overview
MAX16993AGJL/VY+ from Maxim Integrated is an AEC-Q100 qualified automotive PMIC integrating one high-voltage synchronous step-down controller (OUT1, 3.5–36V input, 3.3V/5.0V fixed or adjustable output) and two cascaded low-voltage synchronous buck converters (OUT2/OUT3, 0.8–3.95V, up to 3A each), all operating at 2.1MHz. It delivers 30µA quiescent current in no-load mode and supports spread-spectrum and external synchronization for EMI reduction in infotainment and ADAS power rails.
For engineers reviewing the MAX16993AGJL/VY+ datasheet, MAX16993AGJL/VY+ pinout, MAX16993AGJL/VY+ application, or MAX16993AGJL/VY+ equivalent, key selection criteria include its -40°C to +125°C operation, side-wettable 32-pin QFND-EP package, individual enable/reset per channel, and factory-programmable switching frequencies (2.1MHz, 1.05MHz, 525kHz, 420kHz, 350kHz).
Technical Context
The MAX16993AGJL/VY+ implements a current-mode control architecture with forced-PWM and skip modes across all three channels. Its OUT1 controller uses internal high-side/low-side gate drivers (RDH1 ≤ 4Ω, RDL1 ≤ 5Ω) and supports load-dump transient protection up to 42V. The cascaded OUT2/OUT3 converters derive input from OUT1, enabling high-efficiency multi-rail generation with 180° out-of-phase switching.
Each channel features independent voltage monitoring via dedicated open-drain RESET_ outputs (asserted on >6% undervoltage), programmable timeout (0.1–7.8ms), and overtemperature shutdown (+170°C). The BIAS LDO (5.0V ±0.4V) powers internal circuitry pre-soft-start and transitions to OUT1 post-startup, eliminating need for external bias supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (OUT1) | 3.5V to 36V - enables direct connection to automotive battery with 42V load-dump tolerance |
| Switching Frequency | 2.1MHz (pin-selectable) - avoids AM band interference and reduces inductor/capacitor size |
| Quiescent Current | 30µA (OUT1 enabled, no load) - meets automotive always-on module sleep-current requirements |
| Output Current (OUT2/OUT3) | Up to 3.0A per channel - supports high-current digital loads like SoCs and FPGAs |
| Operating Temperature | -40°C to +125°C - qualified for under-hood and cabin-mounted automotive applications |
| AEC-Q100 Grade | Grade -40°C to +125°C - certified for automotive safety-critical power systems |
| Package | 32-pin side-wettable QFND-EP (5mm × 5mm × 0.8mm) - enables automated optical solder-joint inspection |
Pinout & Package
The MAX16993AGJL/VY+ is housed in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm) with exposed thermal pad connected to GND. This package supports IPC-A-610 Class 3 solder-joint inspection and provides θJA = 37°C/W for thermal management in compact automotive modules.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| EN1 | High-voltage tolerant enable for OUT1 | Active-high input enabling primary buck; controls startup sequence and disables all downstream rails when low |
| OUT1 / CS1 / FB1 | Output sense / current sense / feedback | Three-terminal sensing enables precise regulation and cycle-by-cycle current limiting for OUT1 |
| LX1 / DH1 / DL1 / BST1 | Power switch node / gate drives / bootstrap | Integrated gate-driver outputs eliminate external driver ICs and reduce layout parasitics |
| EN2 / EN3 / RESET2 / RESET3 | Independent enable/reset for OUT2/OUT3 | Per-rail control allows staggered power-up and fault isolation without system-level reset |
| SSEN / CSEL1 / SYNC | Spread-spectrum / frequency select / sync I/O | Configurable EMI mitigation and system-level clock domain alignment without external components |
Key Features
| Feature | Design Value |
|---|---|
| Triple-output architecture with cascaded topology | OUT2/OUT3 powered from OUT1 improves overall efficiency by ~5% vs. independent inputs and reduces input capacitance requirements |
| Individual open-drain RESET_ per channel | Programmable 0.1–7.8ms timeout enables precise power sequencing for multi-rail processors and ASICs |
| Factory-trimmed fixed outputs | ±3% output error over line/load/temperature eliminates need for precision resistors in 3.3V/5.0V/3.15V/1.8V configurations |
| Side-wettable QFND-EP package | Enables automated X-ray and AOI inspection of solder joints - critical for automotive zero-defect manufacturing |
| BIAS LDO auto-transition | Switches from internal 5V regulator to OUT1 rail post-soft-start, reducing standby power and simplifying bias network design |
Applications
| Infotainment Head Unit Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Dual-rail power for SoC (1.2V core, 3.3V I/O) and display interface in vehicle head units. IC Role / Device Role / Timing Role: Primary PMIC delivering regulated, sequenced, and monitored outputs with spread-spectrum EMI control. Use Value: Eliminates discrete DC-DC + LDO combinations; 2.1MHz operation shrinks filter components by >40% vs. 500kHz solutions. | Use Scenario: Compact, thermally constrained power for 12MP image sensor and ISP in rear-view camera modules. IC Role / Device Role / Timing Role: Cascaded triple-buck regulator providing 1.8V (sensor), 3.15V (ISP), and 5.0V (interface) with independent reset signaling. Use Value: Side-wettable package ensures solder-joint reliability in vibration-prone mounting; -40°C to +125°C rating supports under-dash placement. |
| Automotive Gateway ECU | Telematics Control Unit (TCU) |
Use Scenario: Multi-rail supply for CAN/FlexRay transceivers, microcontroller, and cellular modem in vehicle gateway ECUs. IC Role / Device Role / Timing Role: High-voltage controller (OUT1) powers low-voltage bucks (OUT2/OUT3) that feed isolated communication interfaces and MCU cores. Use Value: 42V load-dump protection prevents field failures during alternator transients; individual EN_/RESET_ pins simplify firmware-controlled power management. | Use Scenario: Always-on power subsystem for LTE/NB-IoT modems requiring ultra-low quiescent current during deep sleep. IC Role / Device Role / Timing Role: Low-IQ PMIC maintaining 3.3V modem rail and 1.8V memory rail while drawing only 30µA from battery. Use Value: Meets ISO 16750-2 battery drain limits for parked vehicle scenarios; SYNC input enables synchronized switching with baseband processor clock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel automotive DC-DC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20096ATPA/VY+ | 3-channel 2.2MHz buck with integrated high-side switches (no external FETs required); 3.5–36V input; 0.5–5.5V outputs; 3.5A max per channel | Higher integration eliminates external MOSFETs but requires larger layout area; lacks side-wettable package option | Select MAX20096ATPA/VY+ when board space permits and external FET cost/complexity must be eliminated |
| TPS653211AQDAPRQ1 | Triple-buck PMIC with 3.5–36V input; 1.2/3.3/5.0V fixed outputs; 2.1MHz switching; AEC-Q100 Grade 1 (−40°C to +125°C); 32-pin HTSSOP | HTSSOP package lacks side-wettable capability; no spread-spectrum or SYNC input; fixed 1.2V/3.3V/5.0V only (no adjustability) | Select TPS653211AQDAPRQ1 for cost-sensitive designs where adjustable outputs and EMI features are not required |
Compared with MAX20096ATPA/VY+, the MAX16993AGJL/VY+ offers superior manufacturability via side-wettable QFND-EP and greater flexibility with pin-selectable frequency and spread-spectrum; compared with TPS653211AQDAPRQ1, it provides adjustable outputs and advanced EMI control but requires external high-side FETs for OUT1.
Availability
MAX16993AGJL/VY+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, gateway ECUs, and telematics control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16993AGJL/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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets, with emphasis on power management, interface, and sensor signal conditioning.
The MAX16993AGJL/VY+ belongs to Maxim's automotive-grade PMIC product line, engineered specifically for compact, high-reliability power subsystems in infotainment, ADAS, and connectivity modules where EMI, thermal performance, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum input voltage the MAX16993AGJL/VY+ can withstand during automotive load-dump events?
The MAX16993AGJL/VY+ is protected against load-dump transients up to 42V on its VSUP pin, exceeding the ISO 16750-2 specification for 12V automotive systems. This robustness is achieved through internal clamping and design margin, allowing direct connection to the vehicle battery without external TVS diodes in most implementations. The device remains functional and undamaged during these events, ensuring reliable operation in harsh automotive environments. MAX16993AGJL/VY+ maintains regulation and does not latch off during transient exposure.
How does the MAX16993AGJL/VY+ achieve its 30µA quiescent current specification?
The MAX16993AGJL/VY+ achieves 30µA quiescent current by combining ultra-low-power bias circuitry, optimized gate-drive logic, and intelligent power-gating of unused blocks during no-load conditions. When only OUT1 is enabled and unloaded, internal regulators and oscillators operate in minimal-current states, and the BIAS LDO transitions to the OUT1 rail post-soft-start to avoid continuous 5V regulation loss. This design meets stringent automotive "parked vehicle" battery drain requirements. MAX16993AGJL/VY+ maintains this spec across -40°C to +125°C.
Can the MAX16993AGJL/VY+ generate non-standard output voltages such as 1.2V or 2.5V on OUT2 or OUT3?
Yes, the MAX16993AGJL/VY+ supports resistor-divider adjustable outputs on OUT2 and OUT3, enabling precise voltages from 0.8V to 3.95V - including 1.2V and 2.5V - using external feedback resistors. The internal reference is 0.815V (typ), and the feedback divider ratio determines final output. Factory-trimmed fixed options (e.g., 3.15V, 1.8V) are also available. MAX16993AGJL/VY+ maintains ±3% accuracy over temperature and load for both fixed and adjustable configurations.
What is the purpose of the side-wettable feature in the MAX16993AGJL/VY+ QFND-EP package?
The side-wettable feature in the MAX16993AGJL/VY+ QFND-EP package exposes solder along the vertical sidewalls of each lead, enabling automated optical inspection (AOI) and X-ray verification of solder joint integrity - a critical requirement for automotive zero-defect manufacturing. This eliminates reliance solely on electrical testing for opens/shorts and improves process yield in high-reliability assembly lines. MAX16993AGJL/VY+ leverages this to meet IATF 16949 process validation standards without additional test fixtures.
Does the MAX16993AGJL/VY+ support synchronization to an external clock source, and what are the valid frequency and duty-cycle ranges?
Yes, the MAX16993AGJL/VY+ supports external clock synchronization via its SYNC pin, which accepts input frequencies from 1.7MHz to 2.4MHz with a 50% ±5% duty cycle. When driven by an external clock, the internal oscillator locks to that source, enabling deterministic timing across multiple power rails and reducing beat-frequency noise in complex systems. MAX16993AGJL/VY+ maintains regulation stability and transient response within these limits, and the SYNC function is factory-configurable per device variant.
MAX16993AGJL/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Programmable)
- Number of Outputs:
- 3
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.95V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
MAX16993AGJL/VY+ FAQ
1.How can I place an order for MAX16993AGJL/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJL/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 MAX16993AGJL/VY+ reliable?
The price and inventory of MAX16993AGJL/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16993AGJL/VY+ is usually 5 days.
3.What payment methods are accepted for MAX16993AGJL/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJL/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJL/VY+?
MAX16993AGJL/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJL/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 MAX16993AGJL/VY+?
For technical support, including MAX16993AGJL/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJL/VY+ requirements.
6.How does Aetrix verify that MAX16993AGJL/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJL/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 MAX16993AGJL/VY+ meets industry standards.
7.What is the process for return or replacement of MAX16993AGJL/VY+?
All MAX16993AGJL/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJL/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 MAX16993AGJL/VY+ part is unused and in its original packaging.
Return procedure for MAX16993AGJL/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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