My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16963SATEF/V+T
- Part No.:
- MAX16963SATEF/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16963SATEF/V+T.pdf
- Description:
- IC REG BUCK ADJ 1.5A DL 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,692
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX16963SATEF/V+T from Maxim Integrated is a dual-channel, 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 channel at adjustable 0.8V–3.6V outputs, and features fixed 2.2MHz PWM switching with skip-mode operation for light-load efficiency. Its thermally enhanced 4mm × 4mm TQFN-EP package supports -40°C to +125°C operation.
For engineers reviewing the MAX16963SATEF/V+T datasheet, MAX16963SATEF/V+T pinout, MAX16963SATEF/V+T application, or MAX16963SATEF/V+T equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade thermal and protection specs, and real-world selection guidance for dual-rail power management in safety-critical embedded systems.
Technical Context
The MAX16963SATEF/V+T integrates two independent synchronous buck controllers with integrated low-RDS(ON) pMOS/nMOS switches (90mΩ/68mΩ typ), enabling high-efficiency conversion across its full 2.7V–5.5V input range. Each channel supports programmable soft-start (8ms), open-drain power-good monitoring (16ms delay), and overtemperature shutdown (165°C threshold with 15°C hysteresis).
Its SYNC pin is factory-configured as an output (phase-shifted 90°), supporting synchronized multi-converter designs, while spread-spectrum modulation (±6% frequency deviation) reduces EMI without external components. The device uses peak-current-mode control with internal slope compensation and supports both fixed-output and externally adjustable configurations via OUTS1/OUTS2 feedback inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports direct connection to automotive 3.3V/5V rails and battery-backed supplies without pre-regulation. |
| Output Voltage Range | 0.8V to 3.6V (adjustable) - enables precise rail generation for modern SoCs, FPGAs, and sensors requiring sub-1V core voltages. |
| Max Output Current | 1.5A per channel - sufficient for dual-core microcontrollers, camera modules, or ADAS domain controllers with independent voltage domains. |
| Switching Frequency | 2.2MHz (fixed, ±10%) - allows all-ceramic capacitor designs and compact 1.5µH/2.2µH inductors, minimizing board area. |
| Quiescent Current | 36µA in skip mode - extends battery life in always-on automotive modules such as telematics or body control units. |
| Thermal Range | -40°C to +125°C - qualified per AEC-Q100 Grade 0, suitable for under-hood and infotainment system deployment. |
| Feedback Accuracy | ±3% over load/line/temp - ensures stable regulation without external trimming, critical for functional safety compliance. |
Pinout & Package
MAX16963SATEF/V+T is housed in a thermally enhanced 4mm × 4mm, 16-pin TQFN-EP package with exposed pad (EP) for optimal heat dissipation. The package meets AEC-Q100 automotive reliability standards and supports reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX1, LX2 | Switching node (CH1/CH2) | High-impedance when disabled; requires low-inductance layout to minimize ringing and EMI in high-frequency buck operation. |
| PGND1, PGND2 | Power ground (CH1/CH2) | Separate low-impedance return paths for each channel's high-current loop-must be routed independently to GND plane. |
| PV1, PV2, PV | Input supply (CH1/CH2/device bias) | PV1/PV2 feed respective channels; PV powers internal logic-each requires dedicated 4.7µF ceramic bypass to respective PGND. |
| EN1, EN2 | Enable inputs (CH1/CH2) | Independent logic-level control (2.4V VIH min); pulldown resistors (50–200kΩ) ensure safe default-off state during power-up. |
| OUTS1, OUTS2 | Feedback inputs (CH1/CH2) | Connect to external resistor divider for adjustable VOUT; sensitive analog nodes-must be isolated from LX and power traces. |
| PG1, PG2 | Open-drain power-good outputs | Assert low when VOUT drops >8%; require 10kΩ pull-up; provide 16ms timeout for reliable system sequencing and fault detection. |
| PWM | Mode control input | Logic-high forces fixed 2.2MHz PWM; logic-low enables skip mode-enables dynamic efficiency optimization based on load profile. |
| SYNC | Factory-programmed I/O | Configured as output in SATEF variant-delivers 90° phase-shifted 2.2MHz clock for synchronizing adjacent converters and reducing input ripple. |
| GND | Analog ground reference | Single-point connection for feedback, error amp, and reference circuits-must tie to large copper plane but separate from PGND returns. |
| EP | Exposed thermal pad | Must be soldered to solid GND plane with ≥6 thermal vias; primary path for heat removal-critical for maintaining <125°C junction temp at full load. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 2.2MHz synchronous buck topology | Enables compact, low-profile power solutions with minimal external components-no external drivers or diodes required. |
| Spread-spectrum modulation (±6%) | Reduces peak radiated emissions by spreading energy across 2.08–2.32MHz band-simplifies EMC compliance without added filtering. |
| Independent enable and power-good signals | Supports staggered startup, rail sequencing, and fault isolation in multi-voltage systems-essential for ASIL-B/C domain controllers. |
| Integrated overtemperature and overcurrent protection | Shuts down at 165°C junction temp with 15°C hysteresis; current-limit thresholds (1.95–2.55A) prevent damage during short-circuit events. |
| 8ms fixed soft-start | Controls inrush current during power-up-prevents input rail collapse and avoids false triggering of upstream protection circuits. |
Applications
| Automotive Camera Module Power | ADAS Domain Controller Core Rails |
|---|---|
Use Scenario: Dual-rail supply for image sensor (1.2V) and ISP (1.8V) in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated, low-noise DC power with fast transient response to handle burst-mode imaging loads. Use Value: 2.2MHz switching minimizes interference with image sensor clocking; ±3% output accuracy ensures consistent pixel gain calibration across temperature. |
Use Scenario: Independent 1.0V core and 1.8V I/O rails for automotive-grade SoC in lane-departure or blind-spot detection ECUs. IC Role / Device Role / Timing Role: Dual-channel postregulator managing dynamic load steps from CPU and GPU subsystems with coordinated power-good signaling. Use Value: Skip-mode operation maintains >85% efficiency at standby currents (<10mA); SYNC output enables interleaved operation with companion regulators to reduce input ripple. |
| Infotainment System Memory Supply | Body Control Unit Microcontroller Rails |
Use Scenario: Generating 1.35V DDR3L and 3.3V interface rails for head-unit application processors and display controllers. IC Role / Device Role / Timing Role: High-current, low-ESR DC-DC source with tight line/load regulation to meet JEDEC DDR timing margins under varying battery conditions. Use Value: 1.5A per channel supports memory bandwidth requirements; 2.7V–5.5V input range accommodates cold-crank (6.5V transients handled via external TVS). |
Use Scenario: Powering 32-bit ARM Cortex-M7 MCU and CAN transceiver in door module or lighting controller with extended temperature operation. IC Role / Device Role / Timing Role: Automotive-qualified dual buck providing fail-safe power with independent enable control and diagnostic-ready power-good outputs. Use Value: -40°C to +125°C rating ensures reliability in engine-bay proximity; open-drain PG outputs interface directly with MCU GPIO for autonomous fault logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRNXTQWRQ1 | Single-channel 8A buck; no dual-output capability; higher max current but lacks independent rail control. | Suitable only where single-rail high-current delivery suffices; cannot replace dual-rail sequencing or independent enable functionality. | Select only if consolidating into one high-current rail; not a functional substitute for MAX16963SATEF/V+T's dual-channel architecture. |
| TPS650361ARSLR | Triple-output PMIC (2x buck + LDO); lower max current (1A/buck); no spread-spectrum or SYNC output. | Better for mixed-signal SoC power with LDO-cleaned analog rails; lacks automotive thermal grade and 2.2MHz switching for ultra-compact layouts. | Prefer when integrating LDOs is needed; avoid when 1.5A dual-buck performance, EMI control, or AEC-Q100 Grade 0 is mandatory. |
Compared with LM61480QRNXTQWRQ1 and TPS650361ARSLR, MAX16963SATEF/V+T uniquely delivers matched 1.5A dual outputs with 2.2MHz switching, spread-spectrum EMI reduction, and factory-configured SYNC output-making it the only choice for space-constrained, noise-sensitive automotive dual-rail applications requiring AEC-Q100 qualification.
Availability
MAX16963SATEF/V+T is available at Aetrix Electronics and suitable for automotive camera modules, ADAS domain controllers, infotainment memory supplies, and body control unit microcontroller rails requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX16963SATEF/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 precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX16963 product line targets automotive postregulation with dual synchronous buck converters featuring AEC-Q100 qualification, spread-spectrum EMI control, and robust thermal protection for under-hood and safety-critical systems.
FAQ
What is the function of the SYNC pin on the MAX16963SATEF/V+T?
The SYNC pin on the MAX16963SATEF/V+T is factory-programmed as an output in the SATEF variant, delivering a 90° phase-shifted 2.2MHz clock signal. This enables synchronization with other converters to reduce input ripple and improve system-level EMI performance. It does not accept external clock inputs in this configuration, and no external pull-up or pull-down is required for normal operation.
Does the MAX16963SATEF/V+T support adjustable output voltages?
Yes, the MAX16963SATEF/V+T supports adjustable output voltages from 0.8V to 3.6V per channel using external resistive dividers connected to OUTS1 and OUTS2. The internal feedback reference is 800mV with ±3% accuracy over temperature and load, eliminating need for precision resistors. Fixed-output variants exist, but SATEF is explicitly designated for adjustable operation.
How does the MAX16963SATEF/V+T manage thermal performance in automotive environments?
The MAX16963SATEF/V+T achieves thermal robustness via its 4mm × 4mm TQFN-EP package with exposed pad (EP), which provides 6°C/W junction-to-case thermal resistance. Combined with -40°C to +125°C specification and 165°C thermal shutdown (15°C hysteresis), it sustains 1.5A/channel operation in under-hood applications when mounted on ≥2oz copper with ≥6 thermal vias to a solid ground plane.
What protection features are integrated into the MAX16963SATEF/V+T?
The MAX16963SATEF/V+T integrates overcurrent protection (1.95–2.55A per channel), overtemperature shutdown (165°C), open-drain power-good outputs with 16ms timeout, and 8ms fixed soft-start. These features prevent damage during short circuits, thermal overload, or uncontrolled inrush-critical for automotive systems requiring ISO 26262-compliant fault handling without external supervision.
Can the MAX16963SATEF/V+T operate in forced PWM mode?
Yes, the MAX16963SATEF/V+T enters forced PWM mode when the PWM pin is driven high, fixing switching at 2.2MHz regardless of load. This ensures constant frequency operation for noise-sensitive applications like camera interfaces. When PWM is low, it defaults to skip mode for improved light-load efficiency-quiescent current drops to 36µA while maintaining regulation.
MAX16963SATEF/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:
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX16963SATEF/V+T FAQ
1.How can I place an order for MAX16963SATEF/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16963SATEF/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 MAX16963SATEF/V+T reliable?
The price and inventory of MAX16963SATEF/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 MAX16963SATEF/V+T is usually 5 days.
3.What payment methods are accepted for MAX16963SATEF/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16963SATEF/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16963SATEF/V+T?
MAX16963SATEF/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16963SATEF/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 MAX16963SATEF/V+T?
For technical support, including MAX16963SATEF/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16963SATEF/V+T requirements.
6.How does Aetrix verify that MAX16963SATEF/V+T is sourced from the original manufacturer or authorized distributors?
All MAX16963SATEF/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 MAX16963SATEF/V+T meets industry standards.
7.What is the process for return or replacement of MAX16963SATEF/V+T?
All MAX16963SATEF/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16963SATEF/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 MAX16963SATEF/V+T part is unused and in its original packaging.
Return procedure for MAX16963SATEF/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16963SATEF/V+T Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
