My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16963SATEC+
- Part No.:
- MAX16963SATEC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX16963SATEC+.pdf
- Description:
- IC REG BUCK ADJ 1.5A DL 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,538
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX16963SATEC+ from Maxim Integrated is a dual synchronous step-down DC-DC converter designed 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 operation with skip mode for light-load efficiency. Its thermally enhanced 4mm × 4mm TQFN-EP package supports -40°C to +125°C operation.
For engineers reviewing the MAX16963SATEC+ datasheet, MAX16963SATEC+ pinout, MAX16963SATEC+ application, or MAX16963SATEC+ equivalent, key selection criteria include dual-output current capability (1.5A each), spread-spectrum EMI reduction, independent enable inputs, open-drain power-good outputs with 16ms delay, and factory-programmable SYNC I/O functionality.
Technical Context
The MAX16963SATEC+ integrates two independent synchronous buck regulators sharing a common 2.2MHz oscillator with ±6% spread-spectrum modulation. Each channel uses internal pMOS/nMOS switches (RDSON_P ≤ 148mΩ, RDSON_N ≤ 128mΩ) and supports adjustable output via external resistive feedback (OUTS1/OUTS2 pins).
It implements peak-current-mode control with 60ns minimum on-time, 8ms fixed soft-start, overcurrent protection (ILIMP = 1.95–2.55A per channel), and thermal shutdown at 165°C with 15°C hysteresis. The PWM pin selects forced-PWM or skip mode; SYNC is factory-configured as input (1.7–2.4MHz) in this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports wide automotive battery rail including cold-crank conditions. |
| Output Current per Channel | Up to 1.5A - enables dual-rail power delivery for microcontrollers and sensors without external MOSFETs. |
| Switching Frequency | 2.2MHz (±10%) - allows full-ceramic design with compact 0.68–1.5µH inductors and small footprint. |
| Feedback Reference Voltage | 800mV - sets output voltage accuracy to ±3% over load, line, and temperature. |
| Quiescent Current (Skip Mode) | 36µA typical - minimizes standby power loss in always-on automotive systems. |
| Power-Good Delay | 16ms fixed - ensures stable output before system reset release in safety-critical applications. |
| Thermal Shutdown Threshold | 165°C junction - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
The MAX16963SATEC+ is housed in a 4mm × 4mm, 16-pin TQFN-EP package with exposed pad (EP) for thermal dissipation. Pin numbering follows standard top-view orientation with EP connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX1, LX2 | Switching node (CH1/CH2) | High-impedance when disabled; requires low-inductance layout to minimize switching noise and EMI. |
| PGND1, PGND2 | Power ground (CH1/CH2) | Separate ground returns reduce cross-talk between channels and improve PSRR. |
| PV1, PV2, PV | Input supply rails (CH1/CH2/device core) | Dedicated bypass paths: PV1/PV2 require ≥4.7µF ceramic caps to respective PGND; PV needs ≥1µF + 10Ω RC filter. |
| EN1, EN2 | Independent enable inputs | Logic-compatible (VINH = 2.4V min); internal 50–200kΩ pulldown enables safe default-off behavior. |
| OUTS1, OUTS2 | Feedback inputs (adjustable mode only) | Connect external resistor divider (R1/R2 ≤ 100kΩ) to set VOUT; sensitive to noise-must be routed away from LX nodes. |
| PG1, PG2 | Open-drain power-good outputs | Assert low when VOUT drops >8%; require 10kΩ pull-up; 16ms timeout ensures clean system sequencing. |
| PWM | Mode control input | High = forced PWM (fixed frequency); Low = skip mode (PFM) for high light-load efficiency. |
| SYNC | Factory-programmed I/O | In SATE variant: configured as SYNC input (1.7–2.4MHz) for external clock synchronization and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 2.2MHz synchronous buck topology | Enables compact all-ceramic designs with <1.5µH inductors and eliminates external diodes. |
| Spread-spectrum frequency modulation | Reduces peak radiated emissions by spreading 2.2MHz fundamental over ±6% bandwidth. |
| Independent enable and power-good signals | Allows staggered startup/shutdown sequencing and fault isolation between two power domains. |
| 8ms fixed soft-start | Controls inrush current during power-up to prevent input rail collapse and system brownout. |
| Overtemperature and cycle-by-cycle overcurrent protection | Shuts down both channels upon junction temp >165°C or peak inductor current >2.55A (CH2). |
Applications
| Automotive Infotainment Power Supply | ADAS Camera Module Rail |
|---|---|
Use Scenario: Powers SoC, DDR memory, and display interface in head-unit systems requiring dual regulated rails (e.g., 3.3V I/O + 1.8V core). IC Role / Device Role / Timing Role: Dual-channel postregulator converting 5V pre-regulated bus to precise low-voltage rails with synchronized switching. Use Value: 2.2MHz operation avoids AM radio band; spread-spectrum reduces EMI compliance risk; -40°C to +125°C rating meets AEC-Q100 Grade 2 requirements. | Use Scenario: Supplies image sensor and ISP in rear-view or surround-view camera modules with strict EMI limits. IC Role / Device Role / Timing Role: Point-of-load regulator delivering 1.2V and 2.8V from vehicle battery via intermediate 5V rail. Use Value: Independent EN1/EN2 enables power gating per subsystem; PG1/PG2 provide rail validation before sensor initialization. |
| Industrial PLC I/O Module | Military Data Acquisition System |
Use Scenario: Generates isolated analog front-end (2.5V) and digital logic (3.3V) supplies in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Dual buck converter providing tightly regulated, low-noise rails for precision ADCs and FPGA configuration. Use Value: ±3% output accuracy over temperature ensures measurement integrity; TQFN-EP package enables conduction cooling in sealed enclosures. | Use Scenario: Powers radiation-tolerant microcontroller and RF transceiver in ruggedized field-deployed equipment. IC Role / Device Role / Timing Role: High-reliability dual DC-DC converter operating across extended temperature and input transients. Use Value: Overtemperature shutdown and 16ms PG delay support fail-safe operation; 2.7V–5.5V input range accommodates 24V system with buck pre-regulator. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRHFRQ1 | Single-channel 8A buck; no dual output; higher current but requires two ICs for dual-rail use. | Best for high-current single-rail systems; lacks independent PG/EN per channel. | Select when needing >1.5A per rail or lower BOM count for single-rail designs. |
| TPS650361ARSLR | Dual 1.2A buck + LDO; lower max current (1.2A vs. 1.5A); integrated LDO adds flexibility but increases quiescent current. | Suitable for mixed analog/digital power where LDO noise rejection is critical. | Choose when combining buck + linear regulation simplifies system-level noise management. |
Compared with LM61480QRHFRQ1 and TPS650361ARSLR, the MAX16963SATEC+ uniquely delivers matched 1.5A dual outputs in one TQFN package with automotive-grade thermal performance, spread-spectrum EMI control, and factory-configured SYNC input-making it optimal for space-constrained dual-rail automotive postregulation.
Availability
MAX16963SATEC+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and industrial PLC I/O requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX16963SATEC+ 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 MAX16963 belongs to Maxim's automotive-grade power management product line, engineered specifically for robust postregulation in harsh environments with stringent EMI and thermal constraints.
FAQ
What is the function of the SYNC pin on the MAX16963SATEC+?
The SYNC pin on the MAX16963SATEC+ is factory-programmed as an input that accepts an external clock signal between 1.7MHz and 2.4MHz. This allows synchronization of the internal 2.2MHz oscillator to an external source, reducing beat-frequency noise and improving EMI performance in multi-converter systems. It does not operate as an output in this variant.
Does the MAX16963SATEC+ support adjustable output voltages?
Yes, the MAX16963SATEC+ supports adjustable output voltages from 0.8V to 3.6V per channel using external resistive dividers connected to the OUTS1 and OUTS2 pins. The internal reference is 800mV, and output accuracy is maintained at ±3% over load, line, and temperature when properly implemented.
What protection features are built into the MAX16963SATEC+?
The MAX16963SATEC+ includes overcurrent protection (cycle-by-cycle current limiting up to 2.55A per channel), overtemperature shutdown at 165°C with 15°C hysteresis, undervoltage lockout (2.37V to 2.6V threshold), and open-drain power-good outputs with 16ms timeout. These ensure robust operation under fault conditions in automotive and industrial environments.
Can the MAX16963SATEC+ operate in forced PWM mode?
Yes, the MAX16963SATEC+ can operate in forced PWM mode by driving the PWM pin high. In this mode, the converter maintains constant 2.2MHz switching regardless of load, improving transient response and predictability-ideal for noise-sensitive applications where variable-frequency skip mode may interfere with nearby receivers.
What is the recommended input capacitor configuration for the MAX16963SATEC+?
For the MAX16963SATEC+, use low-ESR ceramic capacitors: ≥4.7µF at PV1 and PV2 (bypassed to respective PGND1/PGND2), and ≥1µF at PV (with optional 10Ω series resistor). Total RMS input current must be supported; for 1.5A output, IRMS(max) ≈ 0.75A. Capacitor self-heating should remain below +10°C for long-term reliability.
MAX16963SATEC+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Strip
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX16963SATEC+ FAQ
1.How can I place an order for MAX16963SATEC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16963SATEC+ 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 MAX16963SATEC+ reliable?
The price and inventory of MAX16963SATEC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16963SATEC+ is usually 5 days.
3.What payment methods are accepted for MAX16963SATEC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16963SATEC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16963SATEC+?
MAX16963SATEC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16963SATEC+ 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 MAX16963SATEC+?
For technical support, including MAX16963SATEC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16963SATEC+ requirements.
6.How does Aetrix verify that MAX16963SATEC+ is sourced from the original manufacturer or authorized distributors?
All MAX16963SATEC+ 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 MAX16963SATEC+ meets industry standards.
7.What is the process for return or replacement of MAX16963SATEC+?
All MAX16963SATEC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX16963SATEC+, 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 MAX16963SATEC+ part is unused and in its original packaging.
Return procedure for MAX16963SATEC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16963SATEC+ 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…
