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Analog Devices Inc./Maxim Integrated MAX16993AGJG/VY+T
- Part No.:
- MAX16993AGJG/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJG/VY+T.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,030
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Product details
Overview
MAX16993AGJG/VY+T from Maxim Integrated is an AEC-Q100 qualified automotive PMIC integrating one high-voltage synchronous step-down controller (OUT1) and two low-voltage synchronous step-down converters (OUT2/OUT3) cascaded from OUT1. It operates from 3.5V–36V input, delivers up to 3A per low-voltage output, consumes only 30µA quiescent current, and supports 2.1MHz switching for compact EMI-optimized designs in infotainment and ADAS power rails.
For engineers reviewing the MAX16993AGJG/VY+T datasheet, MAX16993AGJG/VY+T pinout, MAX16993AGJG/VY+T application, or MAX16993AGJG/VY+T equivalent, key selection criteria include its triple-output architecture with individual enable/reset, spread-spectrum and SYNC capability, -40°C to +125°C operation, and side-wettable QFND-EP package for automotive solder-joint reliability.
Technical Context
The MAX16993AGJG/VY+T implements a current-mode control architecture with forced-PWM and skip modes across all three channels. Its OUT1 controller uses external high-side/low-side MOSFETs and supports load-dump protection up to 42V, while OUT2/OUT3 integrate 3A FETs and operate at fixed 2.1MHz (not affected by CSEL1).
Frequency configuration is split: CSEL1 selects either 2.1MHz (GND) or factory-programmed lower frequencies (BIAS) for OUT1 only; OUT2/OUT3 remain at 2.1MHz. Spread-spectrum modulation (±6% frequency dither at 4kHz) and SYNC input (1.7–2.4MHz range) provide system-level noise coordination without requiring external clock generation.
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 pre-regulator |
| OUT1 Switching Frequency | Pin-selectable: 2.1MHz (CSEL1 = GND) or factory-set 1.05/525/420/350kHz - determines inductor size and AM-band avoidance |
| OUT2/OUT3 Output Current | Up to 3.0A per channel with integrated FETs - eliminates need for external power switches in compact space-constrained modules |
| Quiescent Current | 30µA with OUT1 enabled - meets automotive "always-on" low-power requirements for body electronics and telematics |
| Operating Temperature | -40°C to +125°C ambient - qualified for under-hood and dashboard-mounted automotive applications |
| Package | 32-pin side-wettable QFND-EP (5mm × 5mm × 0.8mm) - supports automated optical inspection (AOI) of solder joints per IPC-A-610 |
| AEC-Q100 Grade | Grade -40°C to +125°C (Grade 0) - certified for safety-critical automotive subsystems including camera modules and radar ECUs |
Pinout & Package
MAX16993AGJG/VY+T is housed in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm) with exposed pad tied to GND for thermal management. The package supports IPC Class 3 reliability and AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | Main HV supply input | Accepts 3.5V–36V battery input; requires local 0.1µF ceramic bypass for stability |
| EN1, EN2, EN3 | Independent digital enable inputs | Active-high logic; EN1 controls entire PMIC; EN2/EN3 enable OUT2/OUT3 individually after OUT1 startup |
| OUT1, OUT2, OUT3 | Output voltage sense inputs | Connect directly to respective output nodes for feedback regulation; support fixed or resistor-divider-adjustable outputs |
| RESET1, RESET2, RESET3 | Open-drain reset outputs | Assert low when corresponding output drops >6% below nominal; timeout programmable (0.1–7.4ms) via OTP |
| CSEL1, SSEN, SYNC | Configuration control inputs | CSEL1 sets OUT1 frequency; SSEN enables ±6% spread-spectrum dither; SYNC accepts 1.7–2.4MHz external clock or configures PWM/skip mode |
Key Features
| Feature | Design Value |
|---|---|
| Triple-output architecture with cascaded topology | OUT2/OUT3 powered from OUT1 improves overall efficiency vs. independent buck stages and reduces component count |
| Individual enable and reset per channel | Enables sequenced power-up/down and independent fault monitoring in multi-rail systems like domain controllers |
| Spread-spectrum and SYNC I/O | Reduces peak EMI by >10dB and allows synchronization to master clock - critical for radar/ADAS coexistence |
| Factory-trimmed output accuracy | ±3% over line/load/temperature without precision resistors - lowers BOM cost and design validation effort |
| Robust automotive protection suite | Includes overtemperature shutdown (+170°C), short-circuit limiting, undervoltage lockout (2.7V PV threshold), and load-dump tolerance |
Applications
| Infotainment Head Unit Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers SoC core (1.2V), I/O (3.3V), and memory (1.8V) rails in automotive head units with strict EMC limits. IC Role / Device Role / Timing Role: Triple-output PMIC providing sequenced, regulated DC supplies with synchronized switching to suppress beat frequencies. Use Value: 2.1MHz operation avoids AM band; spread-spectrum reduces radiated emissions below CISPR 25 Class 5 limits without added shielding. | Use Scenario: Supplies image sensor (1.2V), ISP (1.8V), and interface (3.3V) in rear-view or surround-view cameras mounted near engine compartments. IC Role / Device Role / Timing Role: High-temp PMIC delivering stable low-noise rails under wide input transients (load dump, cold crank). Use Value: -40°C to +125°C rating and 42V transient tolerance ensure uninterrupted operation during extreme thermal cycling and battery faults. |
| Radar ECU Core Power | Body Control Module (BCM) Subsystem |
Use Scenario: Generates clean, low-ripple 1.0V core and 1.8V analog supplies for 77GHz radar transceivers requiring ultra-low phase noise clocks. IC Role / Device Role / Timing Role: Low-quiescent-current PMIC with individual soft-start (4ms/2.5ms) and reset signaling for deterministic boot sequencing. Use Value: 30µA IQ enables always-on wake-up functionality; individual RESET_ outputs feed MCU watchdog timers for ASIL-B compliance. | Use Scenario: Powers microcontroller, CAN transceiver, and LED drivers in centralized BCMs managing door locks, lighting, and HVAC. IC Role / Device Role / Timing Role: Cascaded buck architecture minimizes heat dissipation and simplifies thermal layout in densely packed PCBs. Use Value: OUT2/OUT3 fed from OUT1 reduces total power loss by ~15% vs. standalone regulators - extends module lifetime in sealed enclosures. |
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+ | Single 3.5V–36V buck controller + dual 3A integrated bucks; same 2.1MHz option but adds programmable soft-start and enhanced spread-spectrum | Supports wider VIN (up to 65V) and includes I²C interface for dynamic voltage scaling - suited for next-gen zonal architectures | Choose MAX20096ATPA/VY+ when firmware-controlled rail sequencing or higher input surge tolerance is required |
| TPS65381A-Q1 | Three integrated bucks (2.5A/2.5A/0.3A); fixed 2.2MHz; no spread-spectrum; supports functional safety diagnostics (ISO 26262) | Includes built-in safety monitor, windowed watchdog, and fault reporting - designed for ASIL-D power domains in steering/braking ECUs | Choose TPS65381A-Q1 when ISO 26262 FMEDA documentation and diagnostic coverage are mandatory |
Compared with MAX20096ATPA/VY+ and TPS65381A-Q1, the MAX16993AGJG/VY+T offers optimal balance of low IQ (30µA), cascaded efficiency, and proven AEC-Q100 Grade 0 qualification - making it ideal for cost-sensitive, thermally constrained infotainment and vision systems where full safety certification is not required.
Availability
MAX16993AGJG/VY+T is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and radar ECU power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MAX16993AGJG/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
Maxim Integrated (now part of Analog Devices) designs high-performance analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets.
The MAX16993 belongs to Maxim's automotive-grade PMIC portfolio targeting compact, efficient, and EMI-robust power solutions for infotainment, ADAS, and body electronics - emphasizing low quiescent current, wide input range, and robust transient handling.
FAQ
What is the maximum input voltage the MAX16993AGJG/VY+T can withstand during automotive load-dump events?
The MAX16993AGJG/VY+T is protected against load-dump transients up to 42V on the VSUP pin. This exceeds the ISO 7637-2 Pulse 5a requirement (35V/40V for 12V/24V systems) and ensures reliable operation during alternator disconnection events without external TVS clamping. The device remains functional throughout the transient if duration is ≤50ns.
Does the MAX16993AGJG/VY+T support independent output voltage adjustment for all three channels?
Yes - the MAX16993AGJG/VY+T supports adjustable outputs on all three channels via external resistor dividers. OUT1 regulates to 1.0V at FB1 in adjustable mode (3.0V–5.5V range); OUT2/OUT3 regulate to 0.815V at their respective feedback pins (0.8V–3.95V range). Fixed-voltage options are also available per the Selector Guide, but the MAX16993AGJG/VY+T variant supports full adjustability.
How does the spread-spectrum feature of the MAX16993AGJG/VY+T reduce EMI in automotive systems?
The MAX16993AGJG/VY+T's spread-spectrum function modulates the internal oscillator frequency by ±6% at 4kHz (sawtooth profile), spreading energy across a 126kHz bandwidth around the nominal 2.1MHz switching frequency. This reduces peak radiated emissions by >10dB compared to fixed-frequency operation - helping meet CISPR 25 Class 5 limits in sensitive RF environments like radar and cellular modules.
Can the MAX16993AGJG/VY+T be synchronized to an external clock source, and what are the timing constraints?
Yes - the MAX16993AGJG/VY+T accepts an external clock on the SYNC pin within 1.7MHz to 2.4MHz, with 50% ±10% duty cycle. When enabled, the internal oscillator locks to the external signal, eliminating beat frequencies in multi-PMIC systems. The SYNC input must be driven by a clean CMOS-level signal referenced to the device's GND; jitter <100ps RMS is recommended for optimal phase stability.
What thermal performance can be expected from the MAX16993AGJG/VY+T in a typical automotive PCB layout?
In a standard 4-layer JEDEC JESD51-7 board, the MAX16993AGJG/VY+T (side-wettable QFND-EP) achieves θJA = 37°C/W and θJC = 2.8°C/W. With 2cm² of 2oz copper connected to the exposed pad, junction-to-ambient rise is ~45°C at full 3A load per channel. Derating begins above +70°C ambient, with 27mW/°C reduction in continuous power dissipation beyond that point.
MAX16993AGJG/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
MAX16993AGJG/VY+T FAQ
1.How can I place an order for MAX16993AGJG/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJG/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 MAX16993AGJG/VY+T reliable?
The price and inventory of MAX16993AGJG/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 MAX16993AGJG/VY+T is usually 5 days.
3.What payment methods are accepted for MAX16993AGJG/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJG/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJG/VY+T?
MAX16993AGJG/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJG/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 MAX16993AGJG/VY+T?
For technical support, including MAX16993AGJG/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJG/VY+T requirements.
6.How does Aetrix verify that MAX16993AGJG/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJG/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 MAX16993AGJG/VY+T meets industry standards.
7.What is the process for return or replacement of MAX16993AGJG/VY+T?
All MAX16993AGJG/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJG/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 MAX16993AGJG/VY+T part is unused and in its original packaging.
Return procedure for MAX16993AGJG/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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