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Analog Devices Inc./Maxim Integrated MAX16993AGJF/VY+T
- Part No.:
- MAX16993AGJF/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJF/VY+T.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,771
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Product details
Overview
MAX16993AGJF/VY+T 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 step-down converters (OUT2/OUT3, 0.8–3.95V, up to 3A each), all operating at 2.1MHz. It delivers 30µA quiescent current in no-load condition and supports spread-spectrum and external synchronization for EMI reduction in infotainment and ADAS power rails.
For engineers reviewing the MAX16993AGJF/VY+T datasheet, MAX16993AGJF/VY+T pinout, MAX16993AGJF/VY+T application, or MAX16993AGJF/VY+T equivalent, key selection criteria include its triple-output architecture with independent enables/RESETs, -40°C to +125°C operation, side-wettable QFND-EP package, and factory-programmable frequency options (2.1MHz or OTP-divided variants).
Technical Context
The MAX16993AGJF/VY+T implements a current-mode control architecture with forced-PWM and skip modes across all three channels. Its OUT1 controller uses an internal oscillator with pin-selectable 2.1MHz or factory-set lower frequencies (1.05MHz/525kHz/420kHz/350kHz), while OUT2/OUT3 operate fixed at 2.1MHz and are powered directly from OUT1's output-enabling higher system efficiency and reduced component count.
It integrates protection features including overtemperature shutdown (+170°C), short-circuit current limiting (100–150mV CS threshold), individual open-drain RESET_ outputs with programmable timeout (0.1–7.8ms), and undervoltage lockout on PV (2.7V typ). The BIAS LDO transitions from 5V to OUT1 voltage post-soft-start, powering internal circuitry without external bias supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (VSUP) | 3.5V to 36V continuous; withstands 42V load-dump transients - enables direct battery connection in 12V/24V automotive systems. |
| Quiescent Current | 30µA with OUT1 enabled - meets automotive "always-on" low-power requirements for telematics and gateway modules. |
| Switching Frequency | 2.1MHz (CSEL1 = GND); factory-programmable alternatives down to 350kHz - avoids AM band interference and allows compact magnetics. |
| Output Current Capability | OUT1: controller-only (external FETs); OUT2/OUT3: integrated 3A FETs - eliminates need for external power stages in mid-power domains. |
| Thermal Rating | AEC-Q100 Grade 0 (−40°C to +125°C ambient); junction limit +150°C - certified for under-hood and cockpit applications. |
| Reset Accuracy | RESET_ asserts when output drops 5–8% below nominal (e.g., 92–95% threshold) - provides reliable power-good signaling for microcontrollers. |
| Soft-Start Time | OUT1: 4ms; OUT2/OUT3: 2.5ms - limits inrush current during cold crank and prevents bus collapse in multi-rail systems. |
Pinout & Package
The MAX16993AGJF/VY+T is housed in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm), optimized for automated optical inspection (AOI) and solder joint reliability in automotive production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1 | High-voltage tolerant enable for OUT1 | Active-high digital input (1.6–2.0V threshold); controls startup sequence and disables all regulators when low. |
| OUT1 / CS1 / FB1 | Output sense / current sense / feedback | Three distinct functions on shared pins: OUT1 senses output voltage, CS1 monitors high-side current, FB1 sets regulation point (1.0V ref in adjustable mode). |
| LX1 / DH1 / DL1 / BST1 | Power switch node and gate drives | LX1 is switching node; DH1/DL1 drive external high/low-side FETs for OUT1; BST1 supplies high-side gate via bootstrap capacitor. |
| OUT2 / OUT3 | Voltage-sense inputs for low-voltage converters | Accept feedback from external dividers or connect directly to regulated outputs - supports both fixed and resistor-adjustable configurations. |
| RESET1 / RESET2 / RESET3 | Open-drain reset outputs | Assert low during undervoltage or startup; timeout programmable per channel - enables sequenced processor boot in multi-core ECUs. |
| SSEN / SYNC / CSEL1 | EMI and timing control inputs | SSEN enables spread-spectrum (±6% freq dither); SYNC accepts external clock (1.7–2.4MHz) or configures skip/PWM mode; CSEL1 selects 2.1MHz or OTP-divided fSW1. |
Key Features
| Feature | Design Value |
|---|---|
| Triple-output architecture with independent control | Enables precise power sequencing (OUT1 → OUT2/OUT3) and fault isolation - critical for ASIL-B/C domain controllers. |
| Side-wettable QFND-EP package | Facilitates AOI-compatible solder joint inspection - satisfies IATF 16949 process validation requirements for automotive Tier-1 suppliers. |
| Spread-spectrum and SYNC capability | Reduces peak radiated emissions by >10dB in 150kHz–30MHz range - simplifies CISPR 25 Class 5 compliance without added shielding. |
| Factory-trimmed output voltages | ±3% accuracy over line/load/temperature without precision resistors - lowers BOM cost and improves yield in high-volume instrument cluster designs. |
| Integrated BIAS LDO with auto-transition | Starts at 5V for initial bias, then switches to OUT1 voltage post-soft-start - eliminates need for separate 5V rail and reduces system-level power loss. |
Applications
| Infotainment Head Unit Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers SoC, DDR memory, display interface, and audio codec in centralized vehicle infotainment units. IC Role / Device Role / Timing Role: Primary PMIC delivering 5.0V (OUT1), 3.3V (OUT2), and 1.2V (OUT3) with independent sequencing and reset monitoring. Use Value: 2.1MHz operation enables use of 1.0µH inductors, reducing board area by 40% vs. 500kHz solutions; 30µA IQ extends battery backup runtime during ignition-off. | Use Scenario: Supplies image sensor, ISP, and serializer in front/rear-view camera modules exposed to engine bay temperatures. IC Role / Device Role / Timing Role: High-reliability triple-output regulator with AEC-Q100 Grade 0 rating and thermal shutdown at +170°C. Use Value: Side-wettable QFND package ensures solder joint integrity under thermal cycling; individual RESET_ outputs enable fail-safe sensor reset on voltage sag. |
| Automotive Gateway ECU | Digital Cluster Display Supply |
Use Scenario: Provides isolated power rails for CAN FD transceivers, Ethernet PHY, and MCU in vehicle communication gateways. IC Role / Device Role / Timing Role: Cascaded architecture (OUT2/OUT3 fed from OUT1) improves conversion efficiency by 8–12% vs. independent buck converters. Use Value: SYNC input allows synchronization to central clock domain - eliminates beat frequencies and simplifies EMC filter design across multi-PMIC systems. | Use Scenario: Generates 3.3V for TFT LCD controller and 1.8V for GPU in high-brightness digital instrument clusters. IC Role / Device Role / Timing Role: Dual low-voltage converters (OUT2/OUT3) with 180° out-of-phase switching reduce input capacitance ripple current by 30%. Use Value: Fixed 4ms/2.5ms soft-start times prevent display flicker during cold-crank; ±3% output accuracy ensures stable gamma correction without calibration. |
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 3.5–36V buck controller (no integrated low-V converters); supports 2.2MHz sync; 20µA IQ; 32-pin TQFN. | Requires external buck converters for secondary rails - increases layout complexity but offers greater flexibility in output voltage/current selection. | Select when system requires only primary HV rail with custom secondary regulation or needs lower IQ than MAX16993AGJF/VY+T. |
| TPS653211C0RGER | Triple-output PMIC (1 HV buck + 2 LV bucks); 2.1MHz; 40µA IQ; -40°C to +125°C; 32-pin VQFN; TI's functional safety package (ISO 26262 ASIL-B ready). | Includes built-in diagnostics (voltage monitor, temp sensor, watchdog) - targets safety-critical applications where MAX16993AGJF/VY+T lacks FMEDA data. | Select when functional safety certification (ASIL-B) is mandatory and diagnostic coverage is required beyond basic RESET_/ERR signals. |
Compared with MAX20096ATPA/VY+ and TPS653211C0RGER, the MAX16993AGJF/VY+T uniquely combines integrated 3A FETs for both low-voltage outputs, side-wettable packaging for automotive AOI, and factory-trimmed voltage options - making it optimal for cost-sensitive, high-volume infotainment and camera power designs where full ASIL-B certification is not required.
Availability
MAX16993AGJF/VY+T is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and digital cluster displays requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16993AGJF/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 deep expertise in power management and robust interface solutions.
The MAX16993 belongs to Maxim's automotive-grade PMIC family, engineered specifically for compact, efficient, and EMI-optimized power delivery in space-constrained vehicle subsystems such as head units, cameras, and gateways.
FAQ
What is the maximum input voltage the MAX16993AGJF/VY+T can withstand during load-dump events?
The MAX16993AGJF/VY+T is protected against load-dump transients up to 42V on the VSUP pin, exceeding ISO 7637-2 Pulse 5a requirements. This allows direct connection to 12V/24V automotive batteries without external TVS clamping in most applications. The device remains functional during transient events ≤50ns, as specified in Absolute Maximum Ratings.
Does the MAX16993AGJF/VY+T support external synchronization of all three output channels?
No - only the OUT1 controller's switching frequency is synchronizable via the SYNC pin (1.7–2.4MHz input range). OUT2 and OUT3 operate at a fixed 2.1MHz and are not synchronized to external clocks or to each other. Their phase relationship is fixed at 180° out-of-phase, as stated in the Features section.
Can the MAX16993AGJF/VY+T generate 1.0V output on OUT2 or OUT3?
Yes - the MAX16993AGJF/VY+T supports resistor-divider adjustable outputs from 0.8V to 3.95V on OUT2 and OUT3. With FB regulation at 0.815V (typ), a standard resistor divider can precisely set 1.0V output. Factory-trimmed options start at 1.2V, so 1.0V requires external feedback configuration.
What is the purpose of the BIAS pin on the MAX16993AGJF/VY+T, and how should it be decoupled?
The BIAS pin provides a 5V internal LDO output used to power internal circuitry and Buck 1's low-side gate driver (PV1). It must be bypassed with ≥2.2µF low-ESR ceramic capacitor to GND, placed as close as possible to the pin. After OUT1 soft-start completes, BIAS internally connects to OUT1 - so its final voltage matches the configured OUT1 output (e.g., 3.3V or 5.0V).
How does the MAX16993AGJF/VY+T handle thermal overload, and what happens to the outputs during shutdown?
The MAX16993AGJF/VY+T triggers thermal shutdown at +170°C junction temperature, with 15°C hysteresis. During shutdown, all three buck regulators disable, OUT1/OUT2/OUT3 discharge through internal 100–200Ω paths, and all RESET_ outputs assert low. The ERR pin also goes low to signal the fault. Normal operation resumes only after junction temperature falls below +155°C.
MAX16993AGJF/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)
MAX16993AGJF/VY+T FAQ
1.How can I place an order for MAX16993AGJF/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJF/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 MAX16993AGJF/VY+T reliable?
The price and inventory of MAX16993AGJF/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 MAX16993AGJF/VY+T is usually 5 days.
3.What payment methods are accepted for MAX16993AGJF/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJF/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJF/VY+T?
MAX16993AGJF/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJF/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 MAX16993AGJF/VY+T?
For technical support, including MAX16993AGJF/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJF/VY+T requirements.
6.How does Aetrix verify that MAX16993AGJF/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJF/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 MAX16993AGJF/VY+T meets industry standards.
7.What is the process for return or replacement of MAX16993AGJF/VY+T?
All MAX16993AGJF/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJF/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 MAX16993AGJF/VY+T part is unused and in its original packaging.
Return procedure for MAX16993AGJF/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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