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Analog Devices Inc./Maxim Integrated MAX16993AGJK/VY+
- Part No.:
- MAX16993AGJK/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJK/VY+.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX16993AGJK/VY+ from Maxim Integrated is an AEC-Q100 qualified automotive PMIC integrating a 3.5V–36V high-voltage synchronous step-down controller (OUT1) and two cascaded low-voltage 2.1MHz synchronous DC-DC converters (OUT2/OUT3), delivering up to 3A per channel, with 30µA quiescent current and -40°C to +125°C operation - used in ADAS camera modules for powering image sensor, ISP, and interface logic.
For engineers reviewing the MAX16993AGJK/VY+ datasheet, MAX16993AGJK/VY+ pinout, MAX16993AGJK/VY+ application, or MAX16993AGJK/VY+ equivalent, key selection criteria include input voltage range (3.5–36V), output current capability (3A per low-voltage rail), spread-spectrum enable (SSEN), SYNC input for system-level clock synchronization, and individual RESET_ outputs with programmable timeout.
Technical Context
The MAX16993AGJK/VY+ implements a current-mode control architecture with forced-PWM and skip modes, enabling stable regulation across wide load ranges while minimizing EMI via optional spread-spectrum modulation (±6% frequency dither at 4kHz). Its OUT1 controller supports factory-trimmed or resistor-adjustable outputs (3.0–5.5V), while OUT2/OUT3 operate from OUT1's output and support 0.8–3.95V outputs with ±3% accuracy over temperature and load.
Each buck channel features independent enable inputs (EN1/EN2/EN3), open-drain RESET_ outputs with fixed timeout options (0.1–7.8ms), and integrated protection including overcurrent limiting (100–150mV CS threshold), thermal shutdown (+170°C), and load-dump transient tolerance up to 42V on VSUP - all validated for automotive power rail sequencing and fault resilience.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V continuous; withstands 42V load-dump transients - enables direct connection to automotive battery without external protection. |
| Switching Frequency | 2.1MHz (pin-selectable); eliminates AM-band interference and allows use of compact 1µH inductors. |
| Quiescent Current | 30µA with OUT1 enabled - meets automotive "always-on" low-power requirements for infotainment and telematics. |
| Output Current Capability | Up to 3A per OUT2/OUT3 channel; supports high-current digital loads like SoCs and FPGAs in ADAS domain controllers. |
| Operating Temperature | -40°C to +125°C ambient; qualified per AEC-Q100 Grade 0 - suitable for under-hood and front-end camera module placement. |
| Feedback Accuracy | ±2.5% for OUT1 (PWM mode); ±3.0% for OUT2/OUT3 - ensures reliable voltage margining for sensitive image sensors and SerDes interfaces. |
| Protection Features | Overtemperature shutdown (+170°C), short-circuit current limiting, UVLO (2.7V PV threshold), and individual RESET_ assertion on 6% undervoltage - enables autonomous fault recovery in safety-critical systems. |
Pinout & Package
MAX16993AGJK/VY+ is housed in a 32-pin TQFN-EP (5mm × 5mm × 0.75mm) with side-wettable QFND-EP variant, featuring exposed pad (EP = GND) for enhanced thermal dissipation (θJA = 29°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | Main HV input supply | Accepts 3.5–36V battery input; includes 42V transient protection - connects directly to vehicle battery rail. |
| OUT1 / CS1 / FB1 | High-voltage buck output & sensing | OUT1 delivers regulated HV rail; CS1 monitors current for OCP; FB1 sets output via fixed or resistor-divider configuration. |
| OUT2 / OUT3 | LV buck output sense inputs | Connect to respective output nodes for feedback; support adjustable outputs (0.8–3.95V) using external dividers. |
| EN1 / EN2 / EN3 | Independent enable inputs | Active-high digital controls; EN1 enables entire PMIC; EN2/EN3 independently activate LV rails - enables flexible power sequencing. |
| RESET1 / RESET2 / RESET3 | Open-drain reset outputs | Assert low when corresponding output falls >6% below nominal; timeout programmable (0.1–7.8ms) - provides sequenced system reset signaling. |
| SSEN / SYNC / CSEL1 | EMI & timing control inputs | SSEN enables spread-spectrum; SYNC accepts external clock (1.7–2.4MHz) for system synchronization; CSEL1 selects 2.1MHz or factory-divided frequency. |
Key Features
| Feature | Design Value |
|---|---|
| Triple-output architecture | One HV controller (OUT1) powers two cascaded LV converters (OUT2/OUT3), improving overall efficiency vs. independent supplies and reducing component count. |
| Spread-spectrum enable (SSEN) | Reduces peak radiated EMI by ±6% frequency dither at 4kHz - enables faster EMC compliance without added shielding or filtering. |
| Individual soft-start | 4ms for OUT1, 2.5ms for OUT2/OUT3 - prevents inrush current during cold crank and ensures controlled power-up of downstream ICs. |
| Thermal and fault monitoring | Integrated thermal warning (+150°C) and shutdown (+170°C), plus ERR pin signaling - supports ASIL-B–capable diagnostics in automotive functional safety designs. |
| Automotive-grade qualification | AEC-Q100 Grade 0, -40°C to +125°C operation, and 100% production testing at +25°C - guarantees reliability in harsh vehicular environments. |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Supply |
|---|---|
|
Use Scenario: Powers image sensor, ISP, and MIPI CSI-2 transmitter in front-facing driver-assistance camera. IC Role / Device Role / Timing Role: Provides three tightly regulated rails: 5.0V for sensor analog bias, 3.15V for ISP core, and 1.2V for MIPI PHY - all synchronized and sequenced. Use Value: 2.1MHz switching avoids AM band interference; individual RESET_ signals ensure clean boot of vision processor before frame capture begins. |
Use Scenario: Supplies application processor, GPU, and DDR memory in head-unit infotainment system. IC Role / Device Role / Timing Role: Delivers 3.3V (OUT2) for SoC I/O, 1.8V (OUT3) for DDR termination, and 5.0V (OUT1) for USB/PCIe regulators - with independent enable control. Use Value: 30µA quiescent current extends battery runtime in accessory-off mode; spread-spectrum reduces noise coupling into audio DAC paths. |
| Automotive Telematics Control Unit | Rear-View Mirror Display Power |
|
Use Scenario: Powers LTE modem, GNSS receiver, and CAN transceiver in cellular-connected telematics gateway. IC Role / Device Role / Timing Role: Generates 3.3V (OUT2) for modem logic, 1.8V (OUT3) for GNSS RF section, and 5.0V (OUT1) for CAN FD transceivers - with load-dump immunity. Use Value: 42V transient tolerance eliminates need for external TVS; SYNC input allows alignment with baseband processor clock to suppress beat frequencies. |
Use Scenario: Supplies LCD driver, touch controller, and ambient light sensor in smart rear-view mirror. IC Role / Device Role / Timing Role: Delivers 3.3V (OUT2) for microcontroller, 1.2V (OUT3) for display interface, and 5.0V (OUT1) for backlight LED driver - with ultra-low IQ. Use Value: 30µA quiescent current meets OEM "zero-power" sleep requirements; individual EN pins allow dynamic rail shutdown during display blanking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel automotive DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20096ATPA/VY+ | Higher integration: adds LDOs, watchdog, and SPI interface; 2.2MHz switching; supports 45V transients. | Better suited for complex domain controllers requiring firmware-configurable sequencing and diagnostics. | Select MAX20096ATPA/VY+ when SPI-based configuration, additional LDOs, or higher transient immunity (>42V) are required. |
| TPS65381A-Q1 | Three buck + three LDOs; 2.1MHz; includes windowed watchdog and fault reporting via nINT; supports 40V transients. | Targeted at ASIL-B safety applications with diagnostic coverage; lacks spread-spectrum but offers richer fault signaling. | Select TPS65381A-Q1 when functional safety certification (ISO 26262) and integrated watchdog are mandatory. |
Compared with MAX20096ATPA/VY+ and TPS65381A-Q1, the MAX16993AGJK/VY+ offers lower system cost and smaller footprint for non-safety-critical ADAS peripherals, with unique spread-spectrum EMI reduction and minimal external component count - ideal for cost-sensitive, space-constrained camera modules.
Availability
MAX16993AGJK/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head-units, and telematics control units requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for MAX16993AGJK/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 precision analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets - emphasizing high reliability, small size, and low power.
The MAX16993AGJK/VY+ belongs to Maxim's automotive PMIC portfolio, engineered specifically for compact, high-efficiency power delivery in camera, radar, and infotainment subsystems - prioritizing EMI control, thermal robustness, and seamless integration with image sensors and SoCs.
FAQ
What is the maximum input voltage rating for MAX16993AGJK/VY+?
The MAX16993AGJK/VY+ supports a continuous input voltage range of 3.5V to 36V on the VSUP pin and is protected against load-dump transients up to 42V for ≤50ns - making it suitable for direct connection to 12V and 24V automotive battery systems without external clamping circuitry.
Does MAX16993AGJK/VY+ support spread-spectrum operation, and how is it enabled?
Yes, the MAX16993AGJK/VY+ supports spread-spectrum frequency modulation to reduce radiated EMI. It is enabled by connecting the SSEN pin to the BIAS supply (typically 5V); this dithers the internal oscillator frequency by ±6% at a 4kHz rate. Connecting SSEN to GND disables spread-spectrum and restores fixed-frequency operation.
How are the output voltages configured on MAX16993AGJK/VY+?
The MAX16993AGJK/VY+ supports both factory-trimmed fixed outputs and resistor-divider adjustable configurations. For OUT1, FB1 tied to GND yields 3.3V; tied to BIAS yields 5.0V or 3.15V depending on OTP setting. OUT2/OUT3 use external resistive dividers on OUT2/OUT3 pins to set outputs from 0.8V to 3.95V, with feedback reference of 0.815V (typ).
What thermal protection mechanisms does MAX16993AGJK/VY+ include?
The MAX16993AGJK/VY+ integrates thermal warning at +150°C and thermal shutdown at +170°C, with 15°C hysteresis. When thermal shutdown activates, all outputs disable and the ERR pin asserts low. The device also features junction-to-ambient thermal resistance of 29°C/W (TQFN), enabling reliable operation up to +125°C ambient with proper PCB copper area.
Can MAX16993AGJK/VY+ synchronize its switching frequency to an external clock source?
Yes, the MAX16993AGJK/VY+ supports external clock synchronization via the SYNC pin. When configured as an input (per factory option), applying a 1.7MHz–2.4MHz external clock with ~50% duty cycle locks the internal oscillator to that frequency - enabling noise reduction in multi-rail systems and eliminating beat frequencies in clustered power supplies.
MAX16993AGJK/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)
MAX16993AGJK/VY+ FAQ
1.How can I place an order for MAX16993AGJK/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJK/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 MAX16993AGJK/VY+ reliable?
The price and inventory of MAX16993AGJK/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16993AGJK/VY+ is usually 5 days.
3.What payment methods are accepted for MAX16993AGJK/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJK/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJK/VY+?
MAX16993AGJK/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJK/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 MAX16993AGJK/VY+?
For technical support, including MAX16993AGJK/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJK/VY+ requirements.
6.How does Aetrix verify that MAX16993AGJK/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJK/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 MAX16993AGJK/VY+ meets industry standards.
7.What is the process for return or replacement of MAX16993AGJK/VY+?
All MAX16993AGJK/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJK/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 MAX16993AGJK/VY+ part is unused and in its original packaging.
Return procedure for MAX16993AGJK/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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