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Analog Devices Inc./Maxim Integrated MAX16993AGJC/VY+T
- Part No.:
- MAX16993AGJC/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJC/VY+T.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,852
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Product details
Overview
MAX16993AGJC/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), all operating at 2.1MHz. It accepts 3.5V–36V input, delivers up to 3A per low-voltage channel, consumes only 30µA quiescent current, and supports spread-spectrum and external synchronization for EMI reduction in ADAS camera modules.
For engineers reviewing the MAX16993AGJC/VY+T datasheet, MAX16993AGJC/VY+T pinout, MAX16993AGJC/VY+T application, or MAX16993AGJC/VY+T equivalent, key selection criteria include its -40°C to +125°C operation, side-wettable 32-pin QFND-EP package, individual RESET_ outputs with programmable timeout, and cascaded architecture enabling >90% efficiency in compact automotive power rails.
Technical Context
The MAX16993AGJC/VY+T implements a current-mode control architecture with forced-PWM and skip modes across all three channels. Its OUT1 controller features pin-selectable 2.1MHz switching or factory-programmed lower frequencies (350kHz–1.05MHz), while OUT2/OUT3 operate fixed at 2.1MHz and are powered directly from OUT1's output-enabling higher overall system efficiency versus independent inputs.
It integrates protection including overtemperature shutdown (+170°C), short-circuit current limiting (100–150mV sense threshold), and individual open-drain RESET_ outputs with 0.1ms–7.8ms programmable assertion timeout. The BIAS LDO transitions from 5V to OUT1 voltage post-soft-start, powering internal circuitry without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports direct connection to automotive battery with load-dump tolerance up to 42V |
| Switching Frequency | 2.1MHz (pin-selectable) - enables small external inductors and avoids AM-band interference |
| Quiescent Current | 30µA with OUT1 enabled - meets automotive always-on requirements for low-power wake-up states |
| Output Current Capability | Up to 3A per OUT2/OUT3 channel - sufficient for image sensor, SoC core, and I/O rail power delivery |
| Operating Temperature | -40°C to +125°C - qualified for under-hood and ADAS module placement |
| AEC-Q100 Grade | Grade 0 - certified for automotive safety-critical applications requiring highest reliability |
| Package | 32-pin side-wettable QFND-EP (5mm × 5mm × 0.8mm) - supports automated optical inspection (AOI) and robust solder joint reliability |
Pinout & Package
The MAX16993AGJC/VY+T is housed in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm) with exposed thermal pad connected to GND. This package enables reliable reflow inspection and efficient heat dissipation in high-density automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | High-voltage input supply | Accepts 3.5V–36V battery input; includes undervoltage lockout at 4.5V startup threshold |
| EN1, EN2, EN3 | Independent enable inputs | Active-high digital controls allow staged power-up of OUT1 → OUT2/OUT3 with 4ms/2.5ms soft-start sequencing |
| RESET1, RESET2, RESET3 | Open-drain reset outputs | Assert low when respective output drops >6% below regulation; timeout programmable from 0.1ms to 7.8ms |
| SSEN, SYNC, CSEL1 | EMI and frequency control inputs | SSEN enables spread-spectrum (±3% freq dither); SYNC accepts 1.7–2.4MHz external clock; CSEL1 selects 2.1MHz or factory-divided frequency |
| LX1, LX2, LX3 | Switching node terminals | Drive external MOSFETs (OUT1) or integrated FETs (OUT2/OUT3); require low-inductance layout for EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Triple-output cascaded architecture | OUT2/OUT3 powered from OUT1 output - improves system efficiency by ~5% vs. independent buck supplies |
| Spread-spectrum enable (SSEN) | Reduces peak radiated EMI by spreading oscillator frequency ±3% at 4kHz modulation rate - no layout changes needed |
| Individual reset outputs with timeout | Three independent open-drain RESET_ signals with user-selectable 0.1–7.8ms hold time - simplifies system-level power sequencing validation |
| Factory-trimmed output accuracy | ±3% total output error over line, load, and temperature - eliminates need for precision feedback resistors in fixed-voltage variants |
| Thermal protection with hysteresis | Thermal shutdown at +170°C with 15°C hysteresis - prevents repeated cycling during sustained overload conditions |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Rail |
|---|---|
Use Scenario: Powers image sensor, ISP, and interface circuitry in rear-view or surround-view cameras mounted in harsh under-hood or bumper environments. IC Role / Device Role / Timing Role: Primary PMIC delivering regulated 3.3V (OUT1), 3.15V (OUT2), and 1.2V (OUT3) rails with synchronized startup and fault reporting. Use Value: Cascaded topology reduces component count by 30% versus discrete DC-DC solutions; AEC-Q100 Grade 0 ensures functional safety compliance. | Use Scenario: Supplies core, memory, and I/O voltages for automotive-grade application processors in head-unit or digital cluster systems. IC Role / Device Role / Timing Role: Single-chip triple-output regulator with independent enable/reset for controlled power sequencing across multiple voltage domains. Use Value: 2.1MHz operation allows use of 1.0µH inductors, shrinking total solution size by 40% compared to 500kHz alternatives. |
| Telematics Control Unit (TCU) | Automotive Gateway ECU |
Use Scenario: Provides stable power to LTE/C-V2X modems, GNSS receivers, and microcontrollers in cellular-connected vehicle modules. IC Role / Device Role / Timing Role: High-efficiency buck controller (OUT1) powers secondary regulators (OUT2/OUT3) that feed modem baseband and RF sections. Use Value: 30µA quiescent current extends battery life during sleep mode; spread-spectrum reduces conducted emissions into sensitive RF front-end circuits. | Use Scenario: Manages power for multi-protocol gateway ICs handling CAN FD, Ethernet AVB, and LIN communication stacks. IC Role / Device Role / Timing Role: Centralized power manager delivering isolated, monitored rails for communication PHYs and host MCU with coordinated reset signaling. Use Value: Individual RESET_ outputs enable precise fault isolation per subsystem; SYNC input allows deterministic timing alignment across multiple PMICs in distributed architectures. |
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+ | Single 3.5V–36V buck controller with integrated FETs; no integrated secondary converters - requires external buck ICs for multi-rail support | Best for designs needing only one high-voltage rail with flexibility to choose secondary regulators independently | Select MAX20096ATPA/VY+ when board space allows discrete secondary stages and design requires higher OUT1 current (5A vs. 3.75A) |
| TPS650331ARSLR | Triple-output PMIC with 2.2MHz switching, but only 1.5A per low-voltage channel and no spread-spectrum - lacks AEC-Q100 Grade 0 qualification | Suitable for non-safety-critical infotainment peripherals where cost is prioritized over thermal margin and EMI performance | Select TPS650331ARSLR for cost-sensitive cabin applications not requiring full automotive qualification or 3A output capability |
Compared with MAX20096ATPA/VY+, the MAX16993AGJC/VY+T integrates both primary and secondary regulation in one package, reducing BOM count and layout complexity; versus TPS650331ARSLR, it delivers higher current, tighter output accuracy, and full AEC-Q100 Grade 0 compliance for mission-critical ADAS functions.
Availability
MAX16993AGJC/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, telematics control units, infotainment SoC power rails, and gateway ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16993AGJC/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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets.
The MAX16993 belongs to Maxim's automotive-qualified PMIC portfolio, designed specifically to consolidate power delivery in ADAS, infotainment, and telematics systems while meeting stringent AEC-Q100, EMC, and thermal reliability requirements.
FAQ
What is the maximum input voltage rating for MAX16993AGJC/VY+T, and how does it handle automotive transients?
The MAX16993AGJC/VY+T supports continuous input voltage up to 36V and is protected against load-dump transients up to 42V. Its VSUP pin withstands these surges without external clamping, thanks to internal overvoltage protection circuitry and robust gate-drive design. This makes MAX16993AGJC/VY+T suitable for direct connection to unregulated automotive battery rails in harsh environments.
Does MAX16993AGJC/VY+T support external frequency synchronization, and what is the acceptable input range?
Yes, MAX16993AGJC/VY+T supports external synchronization via the SYNC pin. When configured as an input, it accepts external clock signals between 1.7MHz and 2.4MHz with 50% duty cycle. This allows precise timing alignment across multiple power rails in complex automotive systems. The MAX16993AGJC/VY+T also provides internal spread-spectrum capability when SYNC is not used.
How does the cascaded architecture of MAX16993AGJC/VY+T improve system efficiency?
The MAX16993AGJC/VY+T powers OUT2 and OUT3 directly from the regulated output of OUT1, eliminating separate input filtering and reducing conduction losses associated with dual-battery-path architectures. This cascaded design improves overall system efficiency by approximately 5% at mid-load conditions compared to independent buck converters, while also minimizing component count and PCB area.
What are the reset timeout options for MAX16993AGJC/VY+T, and how are they configured?
The MAX16993AGJC/VY+T offers programmable reset timeout periods of 0.1ms, 1.9ms, 3.9ms, or 7.8ms for each of its three RESET_ outputs. These values correspond to 256, 4096, 8192, or 16,384 internal clock cycles and are selected via OTP programming at manufacture - not user-configurable in-circuit. The timeout begins after the respective output reaches regulation and holds the signal low for the selected duration.
Is MAX16993AGJC/VY+T compatible with standard reflow profiles, and what is its lead-free soldering specification?
Yes, MAX16993AGJC/VY+T is rated for lead-free reflow soldering at +260°C peak temperature (10-second duration). Its side-wettable QFND-EP package supports automated optical inspection of solder joints and complies with JEDEC J-STD-020 moisture sensitivity level 3. The exposed thermal pad must be soldered to a solid GND plane using standard stencil-defined paste volume for optimal thermal performance.
MAX16993AGJC/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:
- Obsolete
- 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)
MAX16993AGJC/VY+T FAQ
1.How can I place an order for MAX16993AGJC/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJC/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 MAX16993AGJC/VY+T reliable?
The price and inventory of MAX16993AGJC/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 MAX16993AGJC/VY+T is usually 5 days.
3.What payment methods are accepted for MAX16993AGJC/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJC/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJC/VY+T?
MAX16993AGJC/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJC/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 MAX16993AGJC/VY+T?
For technical support, including MAX16993AGJC/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJC/VY+T requirements.
6.How does Aetrix verify that MAX16993AGJC/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJC/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 MAX16993AGJC/VY+T meets industry standards.
7.What is the process for return or replacement of MAX16993AGJC/VY+T?
All MAX16993AGJC/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJC/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 MAX16993AGJC/VY+T part is unused and in its original packaging.
Return procedure for MAX16993AGJC/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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