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Analog Devices Inc./Maxim Integrated MAX16963RAUEA/V+
- Part No.:
- MAX16963RAUEA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX16963RAUEA/V+.pdf
- Description:
- IC REG BUCK ADJ 1.5A DL 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,359
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Product details
Overview
MAX16963RAUEA/V+ from Maxim Integrated is a dual synchronous step-down DC-DC converter optimized for automotive postregulation and point-of-load applications. It operates from 2.7V to 5.5V input, delivers up to 1.5A per output across 0.8V–3.6V adjustable output range, and features fixed 2.2MHz PWM switching with skip mode for light-load efficiency. Its -40°C to +125°C automotive qualification and integrated low-RDS(ON) MOSFETs support robust on-board power delivery in space-constrained systems.
For engineers reviewing the MAX16963RAUEA/V+ datasheet, MAX16963RAUEA/V+ pinout, MAX16963RAUEA/V+ application, or MAX16963RAUEA/V+ equivalent, key selection criteria include dual-output current capability (1.5A each), factory-configured SYNC input mode, 16ms power-good delay, spread-spectrum disable status, and TSSOP-EP package compatibility with automotive thermal requirements.
Technical Context
The MAX16963RAUEA/V+ integrates two independent synchronous buck regulators sharing a common 2.2MHz oscillator with optional external synchronization via the SYNC pin configured as input. Each channel employs peak-current-mode control with internal slope compensation, programmable soft-start (8ms), and open-drain power-good outputs with ±3% regulation accuracy over line, load, and temperature.
It supports forced PWM (FPWM) and skip (PFM) modes via the dedicated PWM pin, includes overcurrent protection with cycle-by-cycle current limiting, and thermal shutdown at 165°C with 15°C hysteresis. The device uses BiCMOS process technology and requires ceramic input/output capacitors due to its high switching frequency.
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 conditions. |
| Output Voltage Range | 0.8V to 3.6V - adjustable via external resistor divider; enables precise rail generation for MCU cores and I/O. |
| Max Output Current | 1.5A per channel - sufficient for powering multiple SoC domains or sensor clusters simultaneously. |
| Switching Frequency | 2.2MHz (fixed) - allows use of small all-ceramic external components and reduces EMI filter size. |
| Feedback Accuracy | ±3% over load/line/temp - ensures stable voltage regulation without trimming resistors in production. |
| Quiescent Current | 36µA in skip mode - extends battery life in always-on automotive modules like telematics or ADAS sensors. |
| Operating Temp | -40°C to +125°C - qualified for under-hood and infotainment applications meeting AEC-Q100 stress requirements. |
Pinout & Package
The MAX16963RAUEA/V+ is housed in a thermally enhanced 16-pin TSSOP-EP package with exposed pad for improved heat dissipation. Pin numbering follows standard TSSOP layout with EP connected to system ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2 | Independent enable inputs | Allow staggered startup or dynamic power sequencing of each output rail. |
| OUTS1, OUTS2 | Feedback inputs (adjustable mode) | Accept external resistor divider to set output voltage; tied directly to VOUT for fixed-voltage variants. |
| PG1, PG2 | Open-drain power-good outputs | Assert after 16ms timeout when output reaches ±3% regulation; require 10kΩ pull-up for logic-level signaling. |
| PWM | Mode control input | High = forced PWM (constant frequency); low = skip mode (variable frequency, higher light-load efficiency). |
| SYNC | Factory-programmed I/O | Configured as input in RAUE variant - accepts 1.7–2.4MHz external clock to synchronize switching noise. |
| LX1, LX2 | Switching node outputs | Drive external inductors; high-impedance when respective converter is disabled. |
| PGND1, PGND2 | Power ground returns | Separate ground paths minimize cross-talk between channels and improve PSRR. |
| PV1, PV2, PV | Input supply pins | PV1/PV2 power individual converters; PV supplies bias circuitry - all require local ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 2.2MHz Buck Regulators | Enables compact, low-profile power solutions with minimal external component count and no need for external compensation. |
| Independent Enable Control | Supports flexible power sequencing in multi-rail systems - e.g., enabling core voltage before I/O voltage in automotive ECUs. |
| Spread-Spectrum Disabled | RAUE variant has SS disabled - simplifies EMI compliance testing where deterministic switching frequency is preferred. |
| 16ms Power-Good Delay | Ensures stable output before asserting PG signal - prevents premature system wake-up during startup transients. |
| Thermal Shutdown with Hysteresis | Shuts down at 165°C junction temp and re-enables only after cooling by 15°C - avoids thermal oscillation during overload events. |
Applications
| Automotive Infotainment | ADAS Camera Module |
|---|---|
Use Scenario: Powering SoC core (1.2V), I/O (3.3V), and memory interface (1.8V) rails in head-unit systems. IC Role / Device Role / Timing Role: Dual-output DC-DC converter providing isolated, regulated supplies with synchronized switching to reduce beat-frequency noise. Use Value: 2.2MHz operation enables small 1.5µH/2.2µH inductors and 4.7µF/22µF ceramic caps - reducing board area by >40% vs. lower-frequency alternatives. | Use Scenario: Supplying image sensor (1.2V), ISP (1.8V), and interface (3.3V) in rear-view or surround-view camera ECUs. IC Role / Device Role / Timing Role: Point-of-load regulator delivering clean, low-noise power with fast transient response to handle burst-mode imaging loads. Use Value: ±3% output accuracy and 8ms soft-start ensure reliable boot-up under cold-crank conditions (down to 2.7V input). |
| Industrial Telematics Gateway | Military Data Logger |
Use Scenario: Generating 3.3V for cellular modem and 1.8V for GPS receiver in fleet management units operating across wide temperature ranges. IC Role / Device Role / Timing Role: Automotive-qualified dual buck converter supporting extended temperature operation and robust ESD immunity. Use Value: TSSOP-EP package with exposed pad achieves 38.3°C/W junction-to-ambient thermal resistance - sustaining full 1.5A load at +105°C ambient. | Use Scenario: Powering FPGA configuration logic (1.2V) and ADC front-end (3.3V) in ruggedized field data recorders. IC Role / Device Role / Timing Role: High-reliability DC-DC solution with overtemperature and overcurrent protection for unattended operation. Use Value: Cycle-by-cycle current limiting and thermal shutdown prevent damage during sustained short-circuit events in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20004AATP/V+ | Single-channel 2.2MHz buck; 3A output; no dual-output capability | Requires two devices for dual-rail designs; higher BOM cost and layout area | Select when single-rail high-current needs dominate and space permits discrete implementation. |
| TPS650361RSLR | Triple-output PMIC (2x buck + LDO); 1.2A per buck; 2.1MHz switching | Includes integrated LDOs but lower per-buck current rating; different pinout and control interface | Prefer when system requires mixed buck/LDO rails and footprint allows QFN-32 package. |
Compared with MAX20004AATP/V+ and TPS650361RSLR, the MAX16963RAUEA/V+ provides true dual 1.5A synchronous buck conversion in a single TSSOP-EP package with automotive-grade thermal performance and configurable SYNC input - making it optimal for space-constrained dual-rail automotive subsystems.
Availability
MAX16963RAUEA/V+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, industrial telematics gateways, and military data loggers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16963RAUEA/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 and mixed-signal ICs for automotive, industrial, and communications markets, emphasizing reliability, integration, and power efficiency.
The MAX16963RAUEA/V+ belongs to Maxim's automotive-qualified DC-DC converter family targeting postregulation and point-of-load applications where small size, high efficiency, and AEC-Q100 compliance are critical design requirements.
FAQ
What is the function of the SYNC pin on the MAX16963RAUEA/V+?
The SYNC pin on the MAX16963RAUEA/V+ is factory-programmed as an input. In this configuration, it accepts an external 1.7MHz to 2.4MHz clock signal to synchronize the internal 2.2MHz oscillator, reducing electromagnetic interference through deterministic switching frequency alignment. This feature is confirmed in the Selector Guide for the RAUE suffix variant.
Does the MAX16963RAUEA/V+ support adjustable output voltages?
Yes, the MAX16963RAUEA/V+ supports adjustable output voltages from 0.8V to 3.6V per channel using external resistor dividers connected to the OUTS1 and OUTS2 pins. The RAUE variant is explicitly listed in the Selector Guide as "Ext. Adj." (externally adjustable), confirming this capability without requiring fixed-voltage internal feedback.
What package type is used for the MAX16963RAUEA/V+?
The MAX16963RAUEA/V+ uses a 16-pin TSSOP-EP (exposed pad) package, as indicated by the "AUE" suffix in the part number and verified in the Ordering Information table. This thermally enhanced package provides 38.3°C/W junction-to-ambient thermal resistance and requires soldering the EP to a large copper ground plane for optimal heat dissipation.
How does the MAX16963RAUEA/V+ handle overcurrent conditions?
The MAX16963RAUEA/V+ implements cycle-by-cycle overcurrent protection with a typical current-limit threshold of 2.35A per channel. During overload, the high-side MOSFET remains on until inductor current reaches the limit, then the low-side switch activates to ramp current down. This continues until the fault clears, preventing thermal damage while maintaining regulation under partial load.
Is spread-spectrum modulation enabled on the MAX16963RAUEA/V+?
No, spread-spectrum modulation is disabled on the MAX16963RAUEA/V+. The Selector Guide explicitly lists the RAUE variant as "Disabled" under the Spread Spectrum column, distinguishing it from SAUE or SATE variants. This configuration provides deterministic switching frequency for predictable EMI filtering and timing analysis.
MAX16963RAUEA/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:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
MAX16963RAUEA/V+ FAQ
1.How can I place an order for MAX16963RAUEA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16963RAUEA/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 MAX16963RAUEA/V+ reliable?
The price and inventory of MAX16963RAUEA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16963RAUEA/V+ is usually 5 days.
3.What payment methods are accepted for MAX16963RAUEA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16963RAUEA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16963RAUEA/V+?
MAX16963RAUEA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16963RAUEA/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 MAX16963RAUEA/V+?
For technical support, including MAX16963RAUEA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16963RAUEA/V+ requirements.
6.How does Aetrix verify that MAX16963RAUEA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX16963RAUEA/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 MAX16963RAUEA/V+ meets industry standards.
7.What is the process for return or replacement of MAX16963RAUEA/V+?
All MAX16963RAUEA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16963RAUEA/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 MAX16963RAUEA/V+ part is unused and in its original packaging.
Return procedure for MAX16963RAUEA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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