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Analog Devices Inc./Maxim Integrated MAX16962SATEA/V+T
- Part No.:
- MAX16962SATEA/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16962SATEA/V+T.pdf
- Description:
- IC REG BUCK ADJ 4A 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,083
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Product details
Overview
MAX16962SATEA/V+T from Maxim Integrated is a 4A, 2.2MHz synchronous step-down DC-DC converter designed for automotive point-of-load regulation. It operates from 2.7V to 5.5V input, delivers 0.8V–3.6V adjustable output, achieves ±3.7%/+2.6% output error over load/line/temperature, and integrates low-RDS(ON) MOSFETs in a thermally enhanced 4mm × 4mm TQFN-EP package.
For engineers reviewing the MAX16962SATEA/V+T datasheet, MAX16962SATEA/V+T pinout, MAX16962SATEA/V+T application, or MAX16962SATEA/V+T equivalent, key selection considerations include its 2.2MHz fixed-frequency PWM/SKIP mode operation, spread-spectrum EMI reduction, open-drain power-good output with 16ms delay, 8ms soft-start, and -40°C to +125°C automotive qualification.
Technical Context
The MAX16962SATEA/V+T implements a current-mode synchronous buck architecture with dual LX switching nodes (LX1/LX2) paralleled for 4A continuous output. Its internal 2.2MHz oscillator supports forced-PWM or SKIP mode via the PWM pin, and the factory-configured SYNC pin operates as an input accepting 1.7–2.4MHz external clocks.
It features integrated high-side and low-side MOSFETs with RDS(ON) of 34mΩ (pMOS) and 25mΩ (nMOS) at 5V input, programmable spread-spectrum modulation (±6%), and precision feedback regulation referenced to 800mV at the OUTS pin - enabling accurate output setting without external resistors for preset versions or full adjustability via external divider.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports wide automotive battery rail variations including cold-crank and load-dump conditions. |
| Output Voltage Range | 0.8V to 3.6V - fully adjustable via external resistor divider on OUTS pin; factory-preset options available. |
| Max Output Current | 4A continuous - achieved with paralleled LX1/LX2 outputs and low RDS(ON) switches for minimal conduction loss. |
| Switching Frequency | 2.2MHz (typ), ±10% - enables use of all-ceramic, space-saving passive components and avoids AM-band interference. |
| Feedback Reference | 800mV - precise internal reference allows tight output regulation; accuracy is -3.7%/+2.6% over full operating range. |
| Quiescent Current | 26µA in SKIP mode - minimizes standby power loss in always-on automotive systems. |
| Shutdown Current | 1µA - ensures negligible battery drain during vehicle sleep modes. |
Pinout & Package
MAX16962SATEA/V+T is housed in a 4mm × 4mm, 16-pin TQFN-EP package with exposed thermal pad (EP) requiring connection to a large contiguous copper ground plane for effective heat dissipation. Pin count and layout match the T1644+4 land pattern (Maxim outline 21-0139).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX1 / LX2 | Switching Nodes | Paralleled high-current outputs driving external inductor; high-impedance when disabled - enables seamless current sharing and 4A capability. |
| PGND1 / PGND2 | Power Grounds | Dedicated low-inductance return paths for LX1 and LX2 switch currents - critical for minimizing ground bounce and EMI. |
| PV1 / PV2 | Input Supply Pins | Separate 5V-input rails bypassed independently with ≥4.7µF ceramic capacitors - reduces input ripple and improves transient response. |
| PV | Device Bias Supply | Internal LDO input requiring ≥1µF ceramic capacitor and 10Ω decoupling resistor - powers control logic and references independently of power path. |
| OUTS | Feedback Input | Connects to external resistive divider for output voltage setting; referenced to 800mV - enables precise 0.8V–3.6V adjustment. |
| EN | Enable Input | Active-high logic control (2.4V threshold); internal 100kΩ pulldown - allows system-level power sequencing and fault shutdown. |
| PG | Power-Good Output | Open-drain signal asserting when VOUT is within ±8%/+10% window; 16ms timeout - provides reliable system reset and monitoring. |
| PWM | Mode Control | Forces FPWM (high) or SKIP (low) operation - selects between stable frequency/noise immunity or light-load efficiency optimization. |
| SYNC | Synchronization I/O | Factory-configured as input (1.7–2.4MHz) - enables multi-rail timing coordination in complex automotive ECUs. |
| GND | Analog Ground | Reference for feedback, bias, and logic circuits - must be tied to PGND at single point near EP to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| 2.2MHz Fixed-Frequency Operation | Enables compact all-ceramic filter design with minimal footprint and no ferrite beads required for EMI compliance. |
| Spread-Spectrum Modulation (±6%) | Reduces peak radiated emissions by spreading energy across 132kHz bandwidth - simplifies automotive EMC validation. |
| 8ms Internal Soft-Start | Prevents inrush current surges during startup - eliminates need for external soft-start circuitry and protects upstream supplies. |
| Overtemperature Shutdown (+165°C) | Thermal protection with 15°C hysteresis prevents latch-up under sustained overload - ensures robustness in sealed enclosures. |
| Integrated Low-RDS(ON) MOSFETs | 34mΩ (HS) / 25mΩ (LS) at 5V - delivers >92% efficiency at 3.3V/3A, reducing thermal design burden vs. discrete solutions. |
Applications
| Automotive Infotainment | ADAS Camera Power |
|---|---|
Use Scenario: Powering SoC, DDR memory, and display interfaces in head units and digital clusters. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 5V rail to 1.2V/1.8V/3.3V for processor cores and peripherals. Use Value: 2.2MHz switching avoids AM-band interference; spread-spectrum further suppresses radiated emissions to meet CISPR 25 Class 5 limits. | Use Scenario: Providing clean, regulated 1.2V and 2.8V supplies to image sensors and ISP processors in surround-view cameras. IC Role / Device Role / Timing Role: Dual-output-capable buck converter delivering tightly regulated, low-noise power with fast transient response to sensor pixel clocking demands. Use Value: ±3.7%/+2.6% output accuracy over -40°C to +125°C ensures consistent image quality across temperature extremes. |
| Industrial Control HMI | Telematics Gateway |
Use Scenario: Powering ARM-based HMIs in factory automation panels exposed to wide ambient temperatures. IC Role / Device Role / Timing Role: Post-regulator stepping down intermediate 5V supply to 3.3V I/O and 1.1V core voltages for microcontrollers and communication ICs. Use Value: 4A capability supports future-proof expansion; 1µA shutdown current extends battery backup runtime during mains failure. | Use Scenario: Supplying LTE modem, GNSS receiver, and CAN transceiver subsystems in vehicle telematics units. IC Role / Device Role / Timing Role: High-efficiency buck converter delivering 3.3V and 1.8V rails with synchronized switching to minimize beat frequencies in RF-sensitive modules. Use Value: SYNC input allows phase alignment with other power rails - reducing conducted EMI and improving system-level EMC margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4420AGL-A-Z | 3.5A max output, 2.2MHz, no spread-spectrum, 1.2V FB reference | Lacks automotive AEC-Q100 qualification and integrated PG output | Preferred for cost-sensitive industrial designs where EMI and qualification are less stringent. |
| TPS62933RGER | 3A max output, 2.5MHz, 0.8V FB, integrated PMBus interface | Supports digital telemetry but requires external power-good circuitry | Chosen when telemetry, dynamic voltage scaling, or multi-rail coordination via PMBus is required. |
Compared with MPQ4420AGL-A-Z and TPS62933RGER, the MAX16962SATEA/V+T uniquely combines 4A capability, AEC-Q100 qualification, spread-spectrum EMI reduction, and a dedicated open-drain PG output - making it optimal for safety-critical automotive power rails where reliability and regulatory compliance are non-negotiable.
Availability
MAX16962SATEA/V+T is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and industrial HMI applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16962SATEA/V+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 - emphasizing reliability, integration, and power efficiency.
The MAX16962SATEA/V+T belongs to Maxim's automotive-grade power management portfolio, engineered specifically for demanding point-of-load regulation in infotainment, ADAS, and telematics systems operating from 2.7V–5.5V inputs.
FAQ
What is the maximum continuous output current supported by the MAX16962SATEA/V+T?
The MAX16962SATEA/V+T supports up to 4A continuous output current when LX1 and LX2 are operated in parallel. This is verified under thermal conditions with proper PCB copper area and airflow per the datasheet's thermal resistance specs (θJA = 40°C/W for TQFN). Peak short-circuit current reaches 10.4A, but sustained operation above 4A risks thermal shutdown.
Does the MAX16962SATEA/V+T require external feedback resistors to set the output voltage?
No - the MAX16962SATEA/V+T is the adjustable-output variant (denoted by "SATE") and does require an external resistive divider from VOUT to OUTS to GND to set the output voltage between 0.8V and 3.6V. The 800mV internal reference at OUTS determines regulation point; R1 and R2 values are calculated using VOUT = 0.8V × (1 + R1/R2).
How does the SYNC pin function on the MAX16962SATEA/V+T?
On the MAX16962SATEA/V+T, the SYNC pin is factory-configured as an input (per Selector Guide entry "SATE" → SYNC = In). It accepts an external 1.7MHz–2.4MHz clock signal with 50% duty cycle, allowing synchronization of multiple converters to eliminate beat frequencies and reduce EMI in multi-rail systems.
What is the purpose of the separate PV, PV1, and PV2 pins on the MAX16962SATEA/V+T?
The MAX16962SATEA/V+T uses three independent supply pins: PV powers internal bias circuitry (requiring 1µF + 10Ω RC filter), while PV1 and PV2 drive the high-side MOSFETs and associated gate drivers (each bypassed with ≥4.7µF ceramic). This separation isolates noise-sensitive control logic from high-current switching paths - improving stability and transient response.
Is the MAX16962SATEA/V+T qualified for automotive applications?
Yes - the "/V+" suffix in MAX16962SATEA/V+T explicitly denotes AEC-Q100 Grade 0 qualification (-40°C to +125°C junction temperature), automotive-grade wafer processing, and enhanced reliability testing. It meets stringent automotive requirements for lifetime, thermal cycling, and ESD robustness.
MAX16962SATEA/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 4A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX16962SATEA/V+T FAQ
1.How can I place an order for MAX16962SATEA/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16962SATEA/V+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 MAX16962SATEA/V+T reliable?
The price and inventory of MAX16962SATEA/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16962SATEA/V+T is usually 5 days.
3.What payment methods are accepted for MAX16962SATEA/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16962SATEA/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16962SATEA/V+T?
MAX16962SATEA/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16962SATEA/V+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 MAX16962SATEA/V+T?
For technical support, including MAX16962SATEA/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16962SATEA/V+T requirements.
6.How does Aetrix verify that MAX16962SATEA/V+T is sourced from the original manufacturer or authorized distributors?
All MAX16962SATEA/V+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 MAX16962SATEA/V+T meets industry standards.
7.What is the process for return or replacement of MAX16962SATEA/V+T?
All MAX16962SATEA/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16962SATEA/V+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 MAX16962SATEA/V+T part is unused and in its original packaging.
Return procedure for MAX16962SATEA/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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