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Analog Devices Inc./Maxim Integrated MAX16993AGJH/VY+
- Part No.:
- MAX16993AGJH/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MAX16993AGJH/VY+.pdf
- Description:
- IC REG BUCK ADJ 3A TRPL 32QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX16993AGJH/VY+ 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 output, consumes only 30µA quiescent current with OUT1 enabled, and operates across −40°C to +125°C - enabling compact, efficient power rails for ADAS camera modules and infotainment head units.
For engineers reviewing the MAX16993AGJH/VY+ datasheet, MAX16993AGJH/VY+ pinout, MAX16993AGJH/VY+ application, or MAX16993AGJH/VY+ equivalent, key selection criteria include its 36V-rated high-side controller, cascaded dual 3A buck architecture, spread-spectrum EMI reduction, individual reset outputs with programmable timeout, and side-wettable QFND-EP package for automotive-grade solder joint inspection.
Technical Context
The MAX16993AGJH/VY+ implements a current-mode control architecture with forced-PWM and skip modes, supporting synchronization via SYNC input (1.7–2.4MHz range) and spread-spectrum modulation (±6% frequency dither at 4kHz) to suppress radiated emissions. Its OUT1 controller uses external high-side/low-side MOSFETs, while OUT2 and OUT3 integrate power FETs and operate from OUT1's output - enabling >90% efficiency at 2A load with minimal external components.
Each regulator features independent enable inputs (EN1/EN2/EN3), open-drain RESET_ outputs with fixed timeout options (0.1ms–7.8ms), and overtemperature shutdown (+170°C) with thermal warning (+150°C). The BIAS LDO (5.0V ±0.4V) powers internal circuitry pre-soft-start and transitions to OUT1 voltage post-startup, eliminating need for external bias supply.
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. |
| Switching Frequency | 2.1MHz (pin-selectable); factory options down to 350kHz - allows AM-band avoidance and small inductor/capacitor sizing. |
| Quiescent Current | 30µA with OUT1 enabled - meets automotive "always-on" low-power requirements for wake-up circuits. |
| Output Current Capability | OUT2/OUT3: up to 3.0A each (integrated FETs); OUT1: controller-only - supports dual-core SoC core/logic rails with single PMIC. |
| Output Voltage Range | OUT1: 3.0V–5.5V (fixed or resistor-adjustable); OUT2/OUT3: 0.8V–3.95V - covers MCU core, I/O, and interface supply needs. |
| Operating Temperature | −40°C to +125°C ambient - qualified for under-hood and dashboard-mounted automotive electronics. |
| Package | 32-pin side-wettable QFND-EP (5mm × 5mm × 0.8mm) - supports automated optical solder-joint inspection per IPC-A-610. |
Pinout & Package
MAX16993AGJH/VY+ is housed in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm) with exposed pad connected to GND for thermal dissipation. Pin functions are validated per Maxim Integrated datasheet Rev 14 (12/2016).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | Main HV input supply rail | Accepts 3.5V–36V battery input; includes undervoltage lockout (4.5V typ startup threshold). |
| EN1 / EN2 / EN3 | Independent digital enable inputs | Active-high logic; EN1 controls entire PMIC; EN2/EN3 enable OUT2/OUT3 individually after OUT1 soft-start. |
| OUT1 / OUT2 / OUT3 | Output voltage sense & current-sense return | Connect directly to respective output nodes; used for regulation feedback and current-limit sensing. |
| RESET1 / RESET2 / RESET3 | Open-drain reset status outputs | Assert low when corresponding output drops >6% below nominal; timeout programmable (0.1–7.8ms). |
| SSEN / CSEL1 / SYNC | EMI and timing configuration inputs | SSEN enables spread-spectrum; CSEL1 selects 2.1MHz or factory-divided frequency; SYNC synchronizes to external clock or enables skip mode. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage buck controller with integrated gate drivers | Supports external 60V MOSFETs; DH1/DL1 drive capability enables >95% peak efficiency at 5A load. |
| Cascaded dual low-voltage buck converters | OUT2/OUT3 powered from OUT1 output - improves system efficiency by ~8% vs. independent buck supplies. |
| Spread-spectrum and synchronization capability | SSEN reduces peak EMI by >10dB; SYNC input accepts 1.7–2.4MHz external clock for deterministic noise alignment. |
| Individual soft-start and reset timing | 4ms soft-start on OUT1, 2.5ms on OUT2/OUT3; RESET_ timeout configurable via OTP - ensures sequenced power-up for multi-rail SoCs. |
| AEC-Q100 Grade-0 qualification | Validated for −40°C to +125°C operation with 100% production testing - meets automotive safety-critical power requirements. |
Applications
| ADAS Camera Module Power | Infotainment Head Unit Core Supply |
|---|---|
Use Scenario: Dual-sensor automotive camera system requiring isolated 3.3V image sensor rail and 1.2V ISP core rail with strict EMI limits. IC Role / Device Role / Timing Role: MAX16993AGJH/VY+ provides synchronized 2.1MHz switching for both rails, minimizing beat frequencies and enabling compact 2.2µH inductors. Use Value: Cascaded architecture reduces total solution size by 35% vs. discrete buck ICs; spread-spectrum mode meets CISPR-25 Class 5 radiated emission limits. |
Use Scenario: In-vehicle infotainment unit with quad-core ARM processor needing tightly regulated 1.1V core, 3.3V I/O, and 5.0V USB PHY supplies. IC Role / Device Role / Timing Role: MAX16993AGJH/VY+ delivers three independent, sequenced rails with individual RESET_ signals for boot monitoring. Use Value: 30µA quiescent current extends battery runtime in accessory-off state; AEC-Q100 qualification ensures reliability in high-temperature dashboard environments. |
| Automotive Telematics Control Unit | Body Control Module Microcontroller Supply |
Use Scenario: Cellular-connected TCU requiring 3.3V modem rail and 1.8V application processor rail with fast transient response. IC Role / Device Role / Timing Role: MAX16993AGJH/VY+ OUT2/OUT3 deliver 3A each with <8µs propagation delay on RESET_, enabling rapid fault detection. Use Value: 180° out-of-phase operation between OUT2/OUT3 reduces input capacitance requirements by 40% and lowers RMS input ripple. |
Use Scenario: BCM microcontroller with CAN FD interface needing robust 5.0V supply tolerant to load-dump events. IC Role / Device Role / Timing Role: MAX16993AGJH/VY+ OUT1 acts as primary 5.0V controller with 42V transient protection and individual RESET1 assertion. Use Value: Integrated overvoltage protection discharges OUT1 during fault, preventing damage to downstream 5V peripherals during ISO 7637-2 pulse 5a events. |
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 + dual 3A bucks; same 2.1MHz base frequency but adds current-sense amplifier outputs and enhanced diagnostics. | Preferred for ASIL-B systems requiring real-time current monitoring and fault logging. | Select MAX20096ATPA/VY+ when diagnostic coverage (ISO 26262) and analog current telemetry are required; MAX16993AGJH/VY+ suffices for basic functional safety. |
| TPS650362ARSLR | 3.1V–36V input; integrates 3A/2A/1.5A bucks but lacks spread-spectrum, SYNC input, and side-wettable package; max junction temp +125°C. | Suitable for non-safety-critical industrial or commercial automotive accessories with relaxed EMI and thermal specs. | Choose TPS650362ARSLR for cost-sensitive designs where AEC-Q100 Grade-0 and advanced EMI features are not mandatory. |
Compared with MAX20096ATPA/VY+, MAX16993AGJH/VY+ offers identical power architecture and package but omits diagnostic amplifiers - reducing BOM count and layout complexity for entry-level ADAS modules. Against TPS650362ARSLR, it delivers superior thermal margin (+125°C vs. +150°C junction), certified EMI mitigation, and automotive-specific validation - justifying premium use in safety-critical domains.
Availability
MAX16993AGJH/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head units, and telematics control units requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant power management.
Supply support for MAX16993AGJH/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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management solutions for automotive, industrial, and communications markets.
The MAX16993AGJH/VY+ belongs to Maxim's automotive-grade PMIC product line, designed specifically to consolidate multiple power rails in space-constrained, thermally demanding vehicle subsystems while meeting stringent EMI and reliability standards.
FAQ
What is the maximum input voltage rating for MAX16993AGJH/VY+ and how does it handle automotive transients?
The MAX16993AGJH/VY+ supports continuous input voltage up to 36V and is protected against load-dump transients up to 42V per ISO 7637-2 Pulse 5a. Its VSUP pin withstands these surges without external TVS diodes, simplifying front-end protection design. This robustness is achieved through internal clamp structures and process hardening validated during AEC-Q100 stress testing.
Does MAX16993AGJH/VY+ support output voltage sequencing, and how is it implemented?
Yes, MAX16993AGJH/VY+ supports controlled sequencing via independent enable inputs and fixed soft-start timers: OUT1 ramps up over 4ms after EN1 assertion, then OUT2/OUT3 each ramp over 2.5ms upon their respective EN2/EN3 activation. This eliminates need for external sequencing ICs in multi-rail systems like automotive SoCs.
Can MAX16993AGJH/VY+ operate in forced-PWM mode, and what pins control this behavior?
Yes, MAX16993AGJH/VY+ supports forced-PWM mode via the SYNC pin: applying a logic-high signal (≥1.8V) to SYNC forces fixed-frequency operation and disables skip mode. This ensures constant switching frequency for noise-sensitive applications such as camera image sensors or radar receivers.
What package type is used for MAX16993AGJH/VY+, and why is side-wettability important for automotive manufacturing?
MAX16993AGJH/VY+ uses a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm). Side-wettability enables automated optical inspection (AOI) of solder fillets along the package perimeter - a critical requirement for zero-defect automotive PCB assembly per IATF 16949 standards.
How does the spread-spectrum feature of MAX16993AGJH/VY+ reduce EMI, and what is its modulation profile?
The MAX16993AGJH/VY+ spread-spectrum function modulates the switching frequency between fSW and fSW + 6% using a 4kHz sawtooth waveform. This spreads energy across a wider bandwidth, reducing peak radiated emissions by up to 15dB - helping designs meet CISPR-25 Class 5 limits without additional shielding or filtering components.
MAX16993AGJH/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- 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+ FAQ
1.How can I place an order for MAX16993AGJH/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16993AGJH/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 MAX16993AGJH/VY+ reliable?
The price and inventory of MAX16993AGJH/VY+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX16993AGJH/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16993AGJH/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16993AGJH/VY+?
MAX16993AGJH/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16993AGJH/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 MAX16993AGJH/VY+?
For technical support, including MAX16993AGJH/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16993AGJH/VY+ requirements.
6.How does Aetrix verify that MAX16993AGJH/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX16993AGJH/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 MAX16993AGJH/VY+ meets industry standards.
7.What is the process for return or replacement of MAX16993AGJH/VY+?
All MAX16993AGJH/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16993AGJH/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 MAX16993AGJH/VY+ part is unused and in its original packaging.
Return procedure for MAX16993AGJH/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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