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Analog Devices Inc./Maxim Integrated MAX16962SAUEA/V+
- Part No.:
- MAX16962SAUEA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX16962SAUEA/V+.pdf
- Description:
- IC REG BUCK ADJ 4A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,395
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Product details
Overview
MAX16962SAUEA/V+ 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 ±2.6% output voltage accuracy over load/line/temperature, and features integrated low-RDS(ON) MOSFETs in a thermally enhanced 16-pin TSSOP-EP package rated for –40°C to +125°C.
For engineers reviewing the MAX16962SAUEA/V+ datasheet, MAX16962SAUEA/V+ pinout, MAX16962SAUEA/V+ application, or MAX16962SAUEA/V+ equivalent, key selection criteria include its 2.2MHz fixed-frequency PWM/SKIP mode operation, 26µA light-load quiescent current, spread-spectrum EMI reduction, open-drain power-good output with 16ms delay, and factory-configured SYNC-as-input functionality for system synchronization.
Technical Context
The MAX16962SAUEA/V+ implements a current-mode synchronous buck architecture with dual LX outputs (LX1/LX2) paralleled for 4A continuous output. Its internal 2.2MHz oscillator supports forced-PWM or SKIP mode via the PWM pin, and the SYNC pin is factory configured as an input accepting 1.7–2.4MHz external clocks.
It integrates high-side and low-side MOSFETs with RDS(ON) of 34mΩ (pMOS) and 25mΩ (nMOS), employs a precision 800mV feedback reference, and delivers regulated output with –3.7%/+2.6% total error across –40°C to +125°C, 0–4A load, and 2.7–5.5V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports wide automotive battery rail variation including cold-crank and load-dump conditions. |
| Output Voltage Range | 0.8V to 3.6V adjustable - set via external resistor divider on OUTS pin; factory preset versions also available. |
| Max Output Current | 4A continuous - achieved with LX1 and LX2 paralleled; enables single-chip supply for demanding SoCs or FPGAs. |
| Switching Frequency | 2.2MHz fixed (±10%) - allows full use of small ceramic capacitors and minimizes solution footprint. |
| Feedback Reference | 800mV ±0.5% - enables accurate output regulation and simplifies resistor-divider design. |
| Quiescent Current | 26µA in SKIP mode - extends battery life in always-on automotive modules such as telematics or ADAS sensors. |
| Power-Good Delay | 16ms timeout - ensures stable output before asserting PG, compatible with processor reset timing requirements. |
| Thermal Range | –40°C to +125°C - AEC-Q100 qualified for under-hood and infotainment applications. |
Pinout & Package
MAX16962SAUEA/V+ is housed in a 16-pin TSSOP-EP (Exposed Pad) package with 0.65mm pitch, optimized for thermal performance in automotive environments. The exposed pad must be soldered to a large contiguous copper ground plane for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable Input | Active-high logic control; internal 100kΩ pulldown ensures default disable at power-up. |
| PWM | Mode Control Input | High = forced-PWM mode (fixed 2.2MHz); Low = SKIP mode (light-load efficiency optimization). |
| SYNC | Synchronization I/O (factory-configured as input) | Accepts 1.7–2.4MHz external clock; enables multi-rail synchronization to reduce beat frequencies. |
| OUTS | Feedback Input | Connects to external resistor divider for adjustable output; 1µA bias current enables high-impedance sensing. |
| PG | Open-Drain Power-Good Output | Asserts when VOUT is within 90–114% of nominal; requires external 20kΩ pullup; 16ms delay ensures clean system startup. |
| LX1 / LX2 | Switching Nodes | Paralleled internally for 4A capability; high-impedance when disabled; require low-inductance layout to minimize ringing. |
| PGND1 / PGND2 | Power Ground Returns | Separate paths for LX1 and LX2 switching currents; must connect to common GND near EP for optimal EMI and thermal performance. |
| PV1 / PV2 / PV | Input Supply Pins | PV1/PV2 accept main input (bypassed with ≥4.7µF ceramic each); PV supplies internal bias (bypassed with ≥1µF + 10Ω RC filter). |
Key Features
| Feature | Design Value |
|---|---|
| Spread-Spectrum Modulation | ±6% frequency dither reduces peak radiated EMI by spreading energy across 2.08–2.32MHz band. |
| Soft-Start Time | Fixed 8ms ramp - limits inrush current during startup and prevents input rail collapse in shared power systems. |
| Overcurrent Protection | Hiccup-mode current limiting with 5.2–8.5A threshold - protects against short-circuit without latch-off, enabling self-recovery. |
| Thermal Shutdown | +165°C trip with 15°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
| Shutdown Current | 1µA max - enables ultra-low-power standby in always-on automotive ECUs. |
| Light-Load Efficiency | 26µA quiescent current in SKIP mode - maintains >85% efficiency down to 1mA load at 3.3V output. |
Applications
| Automotive Infotainment | ADAS Camera Module |
|---|---|
Use Scenario: Powering SoC, DDR memory, and display interface in head-unit or digital cluster. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 1.2V/1.8V/3.3V rails with fast transient response to dynamic SoC load steps. Use Value: 2.2MHz switching enables compact all-ceramic filter design; ±2.6% output accuracy ensures reliable SoC operation across temperature and battery voltage swing. | Use Scenario: Providing clean, low-noise 1.2V core and 2.8V sensor bias in rear-view or surround-view camera ECU. IC Role / Device Role / Timing Role: Synchronous buck converter with spread-spectrum EMI reduction to meet CISPR-25 Class 5 radiated emissions limits. Use Value: 26µA SKIP-mode IQ preserves battery runtime in parked-camera monitoring; 16ms PG delay aligns with image sensor initialization sequence. |
| Industrial Telematics Gateway | Automotive Body Control Module (BCM) |
Use Scenario: Regulating 3.3V microcontroller and 1.8V cellular modem supply in LTE-connected vehicle gateway. IC Role / Device Role / Timing Role: High-efficiency DC-DC with SYNC input for synchronized switching across multiple rails to suppress beat frequencies. Use Value: Factory-configured SYNC-as-input enables deterministic timing coordination with other MAX16962 devices; –40°C to +125°C rating ensures reliability in engine-bay-mounted units. | Use Scenario: Powering CAN transceivers, LIN controllers, and LED drivers in centralized body electronics unit. IC Role / Device Role / Timing Role: Robust post-regulator handling wide input transients (load dump, cold crank) while maintaining regulated output. Use Value: 2.7–5.5V input range accommodates 12V battery fluctuations; 4A capability supports multiple peripheral loads without derating. |
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 |
|---|---|---|---|
| LM61480QRTWRQ1 | 3.6A max output, 2.1MHz switching, 1.2V FB reference, no spread-spectrum, different pinout. | Requires external compensation; lacks programmable SYNC I/O and 16ms PG delay. | Preferred where TI ecosystem integration or lower BOM cost outweighs need for spread-spectrum EMI control. |
| TPS6286418ARQYR | 4A output, 2.25MHz, 0.6V FB reference, 1.5µA shutdown, no spread-spectrum, QFN-only packaging. | Higher light-load efficiency but no automotive-grade SYNC or PG delay configurability. | Best suited for non-safety-critical consumer-automotive hybrids where footprint and IQ are prioritized over EMI certification support. |
Compared with LM61480QRTWRQ1 and TPS6286418ARQYR, the MAX16962SAUEA/V+ uniquely combines automotive-qualified spread-spectrum EMI reduction, factory-programmed SYNC-as-input, and a precise 16ms power-good delay-making it optimal for infotainment and ADAS subsystems requiring strict CISPR-25 compliance and deterministic system timing.
Availability
MAX16962SAUEA/V+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and industrial telematics gateways requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX16962SAUEA/V+ 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, mixed-signal, and power-management ICs for automotive, industrial, and communications applications.
The MAX16962 belongs to Maxim's automotive-grade DC-DC converter family, engineered specifically for robust, low-EMI point-of-load regulation in harsh vehicular environments with stringent AEC-Q100 and CISPR-25 requirements.
FAQ
What is the function of the SYNC pin on the MAX16962SAUEA/V+?
The SYNC pin on the MAX16962SAUEA/V+ is factory configured as an input that accepts an external 1.7–2.4MHz clock signal. This enables precise synchronization of the 2.2MHz internal oscillator across multiple MAX16962SAUEA/V+ devices or with other system clocks, reducing beat frequencies and aiding CISPR-25 radiated emissions compliance.
Does the MAX16962SAUEA/V+ support adjustable output voltage?
Yes, the MAX16962SAUEA/V+ supports adjustable output voltage from 0.8V to 3.6V using an external resistive divider connected to the OUTS pin. The device uses an internal 800mV feedback reference, and the resistor values are calculated per the formula R1 = R2 × (VOUT/0.8V − 1), with R2 ≤ 100kΩ.
What protection features does the MAX16962SAUEA/V+ include?
The MAX16962SAUEA/V+ includes overcurrent protection (hiccup mode, 5.2–8.5A threshold), overtemperature shutdown (+165°C trip with 15°C hysteresis), undervoltage lockout (2.37V/2.6V thresholds), soft-start (8ms fixed), and open-drain power-good monitoring with 16ms delay and 90–114% window detection.
How does the MAX16962SAUEA/V+ achieve low EMI in automotive applications?
The MAX16962SAUEA/V+ achieves low EMI through three integrated features: 2.2MHz fixed-frequency operation (above AM radio band), optional spread-spectrum modulation (±6% frequency dither), and a factory-programmed SYNC input enabling deterministic multi-rail synchronization to eliminate beat frequencies-key for meeting CISPR-25 Class 5 requirements.
What is the thermal performance of the MAX16962SAUEA/V+ in its TSSOP-EP package?
The MAX16962SAUEA/V+ in the 16-pin TSSOP-EP package has a junction-to-ambient thermal resistance (θJA) of 38.3°C/W and junction-to-case (θJC) of 3°C/W when mounted on a 4-layer JEDEC-standard board. The exposed pad must be soldered to a large contiguous GND copper plane with multiple vias to realize full 4A capability at +125°C ambient.
MAX16962SAUEA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tube
- 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-TSSOP-EP
MAX16962SAUEA/V+ FAQ
1.How can I place an order for MAX16962SAUEA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16962SAUEA/V+ 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 MAX16962SAUEA/V+ reliable?
The price and inventory of MAX16962SAUEA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16962SAUEA/V+ is usually 5 days.
3.What payment methods are accepted for MAX16962SAUEA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16962SAUEA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16962SAUEA/V+?
MAX16962SAUEA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16962SAUEA/V+ 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 MAX16962SAUEA/V+?
For technical support, including MAX16962SAUEA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16962SAUEA/V+ requirements.
6.How does Aetrix verify that MAX16962SAUEA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX16962SAUEA/V+ 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 MAX16962SAUEA/V+ meets industry standards.
7.What is the process for return or replacement of MAX16962SAUEA/V+?
All MAX16962SAUEA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16962SAUEA/V+, 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 MAX16962SAUEA/V+ part is unused and in its original packaging.
Return procedure for MAX16962SAUEA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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