Analog Devices Inc./Maxim Integrated MAX16963SATED/V+T

Overview

MAX16963SATED/V+T from Maxim Integrated is a dual, synchronous, 2.2MHz step-down DC-DC converter for automotive postregulation and point-of-load applications. It operates from 2.7V to 5.5V input, delivers up to 1.5A per output, supports 0.8V–3.6V adjustable output voltage, achieves ±3% output regulation over load/line/temperature, and features integrated low-R_DS(ON) MOSFETs in a thermally enhanced 4mm × 4mm TQFN-EP package.

For engineers reviewing the MAX16963SATED/V+T datasheet, MAX16963SATED/V+T pinout, MAX16963SATED/V+T application, or MAX16963SATED/V+T equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade thermal performance (−40°C to +125°C), spread-spectrum EMI reduction capability, and real-world soft-start (8ms) and power-good (16ms) timing behavior.

Technical Context

The MAX16963SATED/V+T integrates two independent synchronous buck regulators sharing a common 2.2MHz oscillator with ±6% spread-spectrum modulation. Each channel uses peak-current-mode control with internal slope compensation, fixed 8ms soft-start, and open-drain power-good outputs with 16ms timeout and ±8% detection thresholds.

It supports forced PWM (via PWM pin high) or skip-mode (PWM pin low) operation, includes independent EN1/EN2 enables, factory-programmed SYNC I/O (configured as input in this variant), and thermal shutdown at 165°C with 15°C hysteresis. The device uses BiCMOS process and requires external ceramic input/output capacitors and inductors per channel.

Key Specifications

Pinout & Package

MAX16963SATED/V+T is packaged in a 4mm × 4mm, 16-pin TQFN-EP with exposed thermal pad (EP). The package supports high-power dissipation (θ_JA = 40°C/W) and requires soldering EP to a large contiguous copper ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual synchronous buck converter applications.

Compared with MPQ4420AGL-A-Z and TPS65023BRSBR, the MAX16963SATED/V+T uniquely combines dual 1.5A channels, ±6% spread-spectrum EMI reduction, full 0.8V–3.6V adjustability per rail, and AEC-Q100 Grade 0 qualification - making it optimal for compact, noise-sensitive automotive point-of-load designs requiring flexibility and reliability.

Availability

MAX16963SATED/V+T is available at Aetrix Electronics and suitable for automotive camera modules, ADAS domain controllers, infotainment memory rails, body control modules, and industrial embedded systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX16963SATED/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 applications, with emphasis on power management, interface, and sensing solutions.

The MAX16963 product line targets automotive postregulation and point-of-load DC-DC conversion, delivering high efficiency, small form factor, and AEC-Q100-compliant reliability for next-generation vehicle electronics.

FAQ

What is the function of the SYNC pin on the MAX16963SATED/V+T?

The SYNC pin on the MAX16963SATED/V+T is factory-programmed as an input. It accepts an external 1.7MHz to 2.4MHz clock signal to synchronize the internal 2.2MHz oscillator, reducing beat frequencies and improving EMI predictability in multi-converter systems. This configuration is confirmed for the SATE suffix variant per Maxim's Selector Guide.

Does the MAX16963SATED/V+T support adjustable output voltages?

Yes, the MAX16963SATED/V+T supports fully adjustable output voltages from 0.8V to 3.6V per channel using external resistive dividers connected to OUTS1 and OUTS2. Its feedback reference voltage is 800mV with ±3% accuracy over temperature and load, enabling precise regulation without trimming components.

What thermal performance can be expected from the MAX16963SATED/V+T in a typical automotive layout?

In a standard 4-layer PCB with 2oz copper and properly soldered EP pad, the MAX16963SATED/V+T achieves θ_JA = 40°C/W. At 1.5A per channel and 5V input, junction temperature rise remains within specification up to +105°C ambient - validated for continuous operation across its −40°C to +125°C automotive temperature range.

How does the MAX16963SATED/V+T handle light-load efficiency?

The MAX16963SATED/V+T enters skip mode when the PWM pin is driven low, reducing quiescent current to 36µA typical. In this mode, switching occurs only when output voltage droops beyond regulation, minimizing gate charge and switching losses - ideal for automotive always-on modules requiring ultra-low standby power.

What protection features are integrated into the MAX16963SATED/V+T?

The MAX16963SATED/V+T integrates overcurrent protection (2.35A typical per channel), overtemperature shutdown (165°C with 15°C hysteresis), open-drain power-good outputs with 16ms timeout, and 8ms fixed soft-start. These features ensure robust operation in automotive environments where load faults and thermal stress are common.