Analog Devices Inc./Maxim Integrated MAX16993AGJC/VY+

Overview

MAX16993AGJC/VY+ from Maxim Integrated is an AEC-Q100 qualified automotive PMIC integrating one high-voltage synchronous step-down controller (OUT1) and two low-voltage synchronous step-down converters (OUT2/OUT3), all operating at 2.1MHz. It accepts 3.5V–36V input, delivers up to 3A per low-voltage output, and consumes only 30µA quiescent current with OUT1 enabled-enabling always-on power domains in infotainment and ADAS modules.

For engineers reviewing the MAX16993AGJC/VY+ datasheet, MAX16993AGJC/VY+ pinout, MAX16993AGJC/VY+ application, or MAX16993AGJC/VY+ equivalent, key selection criteria include its 36V input rating with 42V load-dump tolerance, individual enable/reset per channel, spread-spectrum and SYNC-capable 2.1MHz operation, and side-wettable QFND-EP package for automated optical inspection in automotive PCB assembly.

Technical Context

The MAX16993AGJC/VY+ implements a current-mode architecture with forced-PWM and skip modes across all three buck channels. Its OUT1 controller uses external high-side/low-side MOSFETs and supports pin-selectable 2.1MHz or factory-set lower frequencies (1.05MHz/525kHz/420kHz/350kHz), while OUT2 and OUT3 integrate 3A FETs and operate cascaded from OUT1's output.

Each channel features independent enable inputs (EN1/EN2/EN3), open-drain RESET_ outputs with programmable timeout (0.1ms–7.8ms), and overtemperature shutdown (+170°C) with thermal warning (+150°C). The BIAS LDO transitions from 5V to OUT1 voltage post-soft-start, powering internal circuitry without external loading.

Key Specifications

Pinout & Package

MAX16993AGJC/VY+ is housed in a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm) with exposed pad connected to GND for thermal management. Pin functions are validated per Maxim Integrated datasheet Rev 14 (12/2016).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multichannel automotive DC-DC converter applications.

Compared with MAX20096ATPA/VY+ and TPS653211AQPWPRQ1, the MAX16993AGJC/VY+ uniquely combines per-channel RESET_, spread-spectrum EMI reduction, and side-wettable packaging-making it optimal for cost-sensitive, high-volume automotive modules requiring robust manufacturability and CISPR 25 compliance without added filtering.

Availability

MAX16993AGJC/VY+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, body control units, and gateway ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX16993AGJC/VY+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets.

The MAX16993 belongs to Maxim's automotive-grade PMIC product line, designed specifically to consolidate multiple power rails in safety-critical vehicle systems while meeting stringent AEC-Q100, CISPR 25, and PPAP requirements.

FAQ

What is the maximum input voltage rating for MAX16993AGJC/VY+ and how does it handle automotive transients?

The MAX16993AGJC/VY+ supports a continuous input voltage range of 3.5V to 36V and is protected against load-dump transients up to 42V. This rating allows direct connection to automotive batteries without external TVS clamping for most 12V systems. The device incorporates internal circuitry that maintains regulation and prevents latch-up during transient events, as verified in AEC-Q100 stress testing.

Does MAX16993AGJC/VY+ support independent power sequencing for its three output channels?

Yes, MAX16993AGJC/VY+ provides full independent sequencing via dedicated EN1, EN2, and EN3 inputs and corresponding open-drain RESET1, RESET2, and RESET3 outputs. Each RESET_ asserts low until its output reaches regulation and remains low for a programmable timeout (0.1ms–7.8ms), enabling precise hardware-based boot order control without microcontroller intervention.

How does the spread-spectrum feature of MAX16993AGJC/VY+ reduce EMI in automotive designs?

The MAX16993AGJC/VY+ spread-spectrum function modulates the switching frequency between fSW and fSW + 6% at a 4kHz sawtooth rate when SSEN is pulled high. This spreads energy across a wider bandwidth, reducing peak radiated emissions by >10dB at the fundamental frequency-enabling compliance with CISPR 25 Class 5 without additional EMI filters or shielding.

What package type is used for MAX16993AGJC/VY+ and why is it important for automotive manufacturing?

MAX16993AGJC/VY+ uses a 32-pin side-wettable QFND-EP package (5mm × 5mm × 0.8mm). The side-wettable leads enable automated optical inspection (AOI) of solder joints-a critical requirement for zero-defect automotive manufacturing. This eliminates reliance on X-ray inspection and improves process yield and field reliability in high-vibration environments.

Can MAX16993AGJC/VY+ operate with external synchronization, and what are the supported frequency and duty-cycle requirements?

Yes, MAX16993AGJC/VY+ supports external synchronization via the SYNC pin, which accepts input frequencies from 1.7MHz to 2.4MHz with a 50% ±5% duty cycle. When driven by an external clock, the internal oscillator locks to that source, enabling phase-aligned switching across multiple rails-critical for suppressing beat-frequency noise in Ethernet AVB and CAN FD gateways.