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Analog Devices Inc./Maxim Integrated MAX16993AGJH/VY+T
- Part No.:
- MAX16993AGJH/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJH/VY+T.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,941
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Product details
Overview
MAX16993AGJH/VY+T from Maxim Integrated is an AEC-Q100 qualified automotive PMIC integrating one high-voltage synchronous step-down controller (OUT1) and two cascaded low-voltage synchronous step-down converters (OUT2/OUT3), operating up to 2.1MHz with 30µA quiescent current, 3.5–36V input range, and -40°C to +125°C operation - used in ADAS camera modules, infotainment head units, and body control modules.
For engineers reviewing the MAX16993AGJH/VY+T datasheet, MAX16993AGJH/VY+T pinout, MAX16993AGJH/VY+T application, or MAX16993AGJH/VY+T equivalent, key selection criteria include its 3-channel cascaded architecture, pin-selectable 2.1MHz/OTP-divided switching frequency, individual enable/reset per channel, spread-spectrum EMI reduction, and side-wettable QFND-EP package for automotive solder-joint reliability.
Technical Context
The MAX16993AGJH/VY+T implements a multichannel current-mode DC-DC architecture: OUT1 operates as a high-side/lower-side gate-driven buck controller (3.5–36V input, up to 42V transient tolerant), while OUT2 and OUT3 are fully integrated synchronous buck converters powered from OUT1's output, each delivering up to 3A with 180° out-of-phase switching.
It supports forced-PWM and skip modes, includes SYNC input for external clock synchronization (1.7–2.4MHz), SSEN for spread-spectrum modulation (±6% frequency dither at 4kHz), and independent overtemperature shutdown (+170°C), overcurrent limiting (100–150mV CS threshold), and voltage-monitored RESET_ outputs with programmable timeout (0.1–7.8ms).
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 | Pin-selectable 2.1MHz or factory-set 1.05/0.525/0.42/0.35MHz - allows AM-band avoidance or efficiency optimization. |
| Quiescent Current | 30µA with OUT1 enabled - meets automotive always-on requirements (e.g., telematics wake-up circuits). |
| Output Channels | Three regulated outputs: OUT1 (3.0–5.5V, controller), OUT2/OUT3 (0.8–3.95V, 1.5A or 3.0A integrated FETs) - supports multi-rail SoC power domains. |
| Thermal Rating | AEC-Q100 Grade 0 (−40°C to +125°C ambient), junction limit +150°C, thermal shutdown at +170°C - validated for under-hood deployment. |
| Package | 32-pin side-wettable QFND-EP (5mm × 5mm × 0.8mm) - enables automated optical inspection (AOI) of solder joints in automotive production. |
| Protection Features | Individual overcurrent (CS-based), overtemperature, undervoltage lockout (PV < 2.7V), and output overvoltage - eliminates need for discrete supervision ICs. |
Pinout & Package
MAX16993AGJH/VY+T uses a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm) with exposed pad connected to GND for thermal dissipation (θJA = 37°C/W). Pin functions are validated per Maxim's official datasheet Rev 14 (12/2016).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | Main HV input supply | Accepts 3.5–36V battery rail; internal UVLO starts at 4.5V, protects against brownout. |
| EN1, EN2, EN3 | Independent enable inputs | Active-high digital controls; EN1 gating enables all channels - supports sequenced power-up in multi-SoC systems. |
| OUT1, OUT2, OUT3 | Output voltage sense inputs | Connect directly to respective output nodes; enable feedback regulation and reset assertion on undervoltage. |
| RESET1, RESET2, RESET3 | Open-drain reset outputs | Assert low when output drops >6%; timeout programmable (0.1–7.8ms) - provides clean system reset signaling to microcontrollers. |
| CSEL1, SSEN, SYNC | Configuration I/O | CSEL1 selects 2.1MHz or OTP-divided frequency; SSEN enables ±6% spread spectrum; SYNC accepts external clock (1.7–2.4MHz) for noise reduction. |
| LX1, LX2, LX3 | Switching node terminals | High-frequency inductor connections; require tight layout and local ceramic decoupling to minimize EMI and ringing. |
| PGND2, PGND3, GND | Separate power/analog grounds | Isolated ground paths prevent noise coupling between high-current switchers and sensitive analog circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Cascaded 3-channel architecture | OUT2/OUT3 powered from OUT1 output - improves overall system efficiency by eliminating redundant conversion stages. |
| Side-wettable QFND-EP package | Enables AOI-compatible solder-joint inspection - critical for zero-defect automotive manufacturing compliance. |
| Individual soft-start timing | 4ms for OUT1, 2.5ms for OUT2/OUT3 - prevents inrush current conflicts during multi-rail power sequencing. |
| Spread-spectrum EMI reduction | SSEN pin enables ±6% frequency dither at 4kHz - reduces peak radiated emissions without changing layout or filters. |
| Factory-trimmed output accuracy | ±3% over line/load/temperature for fixed outputs - eliminates need for precision external resistors in cost-sensitive designs. |
| SYNC input with skip/PWM mode control | Logic-low enables light-load skip mode; logic-high forces fixed-frequency PWM - balances efficiency vs. noise across operating conditions. |
Applications
| ADAS Camera Module Power | Infotainment Head Unit |
|---|---|
Use Scenario: Powers image sensor, ISP, and interface ICs in rear-view or surround-view cameras requiring stable 1.2V, 1.8V, and 3.3V rails under wide temperature and vibration. IC Role / Device Role / Timing Role: Primary PMIC providing sequenced, monitored, and EMI-optimized triple-output power with automotive-grade thermal and transient robustness. Use Value: Eliminates discrete regulators and supervisors; 30µA quiescent current extends battery life in parked-camera recording mode. | Use Scenario: Supplies processor core, memory, display driver, and audio codec in centralized vehicle infotainment systems with strict EMC limits. IC Role / Device Role / Timing Role: Centralized power manager delivering tightly regulated, synchronized, and spread-spectrum-switched outputs to reduce system-level radiated emissions. Use Value: 2.1MHz operation avoids AM band interference; side-wettable package ensures solder-joint reliability in high-vibration dash-mount environments. |
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
Use Scenario: Powers microcontroller, CAN transceivers, LIN interfaces, and sensor signal conditioners in door modules or lighting controllers. IC Role / Device Role / Timing Role: High-integration PMIC enabling compact, thermally efficient design with built-in reset monitoring for functional safety compliance. Use Value: Individual RESET_ outputs feed MCU watchdog timers; AEC-Q100 qualification satisfies ISO 26262 ASIL-B supporting requirements. | Use Scenario: Supplies LTE modem, GNSS receiver, MCU, and secure element in cellular-connected vehicle tracking and remote diagnostics units. IC Role / Device Role / Timing Role: Always-on PMIC with ultra-low quiescent current and battery-direct input - maintains network connectivity during vehicle sleep mode. Use Value: 30µA IQ enables >10-year battery backup for TCU real-time clock and wake-up circuitry without parasitic drain. |
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 3.5–36V input, dual 3A synchronous buck outputs; no high-voltage controller channel - requires external pre-regulator for 12V-to-5V stage. | Best suited for systems where only two low-voltage rails are needed and a separate 5V supply exists. | Select MAX20096ATPA/VY+ when OUT1 functionality is unnecessary and board space favors dual-output integration. |
| TPS653221AQPWPRQ1 | Three-channel buck (2×2.5A + 1×1.5A); fixed 2.1MHz frequency only; no spread-spectrum or SYNC input - limited EMI mitigation options. | Ideal for cost-optimized designs where fixed-frequency operation and simpler configuration are acceptable. | Choose TPS653221AQPWPRQ1 when design prioritizes TI ecosystem support and does not require programmable frequency or EMI dithering. |
Compared with MAX20096ATPA/VY+ and TPS653221AQPWPRQ1, the MAX16993AGJH/VY+T uniquely integrates a high-voltage controller with two downstream converters in one package, offers pin-selectable frequency and spread-spectrum capability, and provides superior thermal performance via side-wettable QFND-EP - making it optimal for new ADAS and infotainment platforms demanding full integration and automotive-grade reliability.
Availability
MAX16993AGJH/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head units, and body control modules requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for MAX16993AGJH/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 and mixed-signal ICs for automotive, industrial, and communications markets, with emphasis on power efficiency, integration, and reliability.
The MAX16993 belongs to Maxim's automotive PMIC product line, engineered specifically for multi-rail power delivery in safety-critical vehicle subsystems - balancing high integration, low quiescent current, and robust fault protection.
FAQ
What is the maximum input voltage rating for MAX16993AGJH/VY+T, and how does it handle automotive transients?
The MAX16993AGJH/VY+T supports a continuous input voltage range of 3.5V to 36V and is protected against load-dump transients up to 42V for ≤50ns. This is achieved through internal clamping and robust gate-drive design on the high-voltage controller channel (OUT1), enabling direct connection to the vehicle battery without external TVS diodes in most cases. The device remains operational during cold-crank (down to 3.5V) and survives ISO 7637-2 pulse 5a transients per AEC-Q100 stress testing.
Does MAX16993AGJH/VY+T support independent power sequencing for its three output channels?
Yes, MAX16993AGJH/VY+T supports precise power sequencing via dedicated enable inputs (EN1, EN2, EN3) and individual open-drain RESET_ outputs (RESET1, RESET2, RESET3). EN1 must be asserted first to enable OUT1; once OUT1 completes its 4ms soft-start, EN2 and EN3 can be asserted to ramp OUT2 and OUT3 with 2.5ms soft-start each. Each RESET_ asserts low if its output falls >6% below nominal and holds low for a programmable timeout (0.1–7.8ms), enabling reliable MCU reset coordination.
How does the spread-spectrum feature of MAX16993AGJH/VY+T reduce EMI, and how is it enabled?
The MAX16993AGJH/VY+T reduces peak radiated EMI by modulating its internal oscillator frequency ±6% around the nominal value (e.g., 2.1MHz ±126kHz) with a 4kHz sawtooth profile. This spreads energy across a wider bandwidth, lowering amplitude at any single frequency. It is enabled by pulling the SSEN pin high to BIAS (typically 5V); grounding SSEN disables spread-spectrum and restores fixed-frequency operation. This feature is active only on internally generated clocks - not when synchronized externally via SYNC.
What are the output current capabilities and voltage ranges for OUT2 and OUT3 on MAX16993AGJH/VY+T?
OUT2 and OUT3 each deliver up to 3.0A (or 1.5A, depending on factory option) with output voltages adjustable from 0.8V to 3.95V using external resistor dividers, or set to factory-trimmed fixed values (e.g., 1.2V, 1.8V, 3.15V, 3.3V). They operate from OUT1's output voltage (not directly from VSUP), improving overall efficiency. Load regulation is ±1.0% in PWM mode, and they support 180° out-of-phase switching to reduce input capacitor ripple current.
Is MAX16993AGJH/VY+T qualified for automotive use, and what packaging supports automated optical inspection?
Yes, MAX16993AGJH/VY+T is AEC-Q100 qualified (Grade 0, −40°C to +125°C ambient) and manufactured in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm). The side-wettable leads allow solder fillet inspection using automated optical inspection (AOI) systems - a critical requirement for zero-defect automotive production lines. Thermal resistance is θJA = 37°C/W, and the exposed pad must be connected to GND for optimal heat dissipation.
MAX16993AGJH/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)
MAX16993AGJH/VY+T FAQ
1.How can I place an order for MAX16993AGJH/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJH/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 MAX16993AGJH/VY+T reliable?
The price and inventory of MAX16993AGJH/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 MAX16993AGJH/VY+T is usually 5 days.
3.What payment methods are accepted for MAX16993AGJH/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJH/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJH/VY+T?
MAX16993AGJH/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJH/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 MAX16993AGJH/VY+T?
For technical support, including MAX16993AGJH/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJH/VY+T requirements.
6.How does Aetrix verify that MAX16993AGJH/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJH/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 MAX16993AGJH/VY+T meets industry standards.
7.What is the process for return or replacement of MAX16993AGJH/VY+T?
All MAX16993AGJH/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJH/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 MAX16993AGJH/VY+T part is unused and in its original packaging.
Return procedure for MAX16993AGJH/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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