Analog Devices Inc./Maxim Integrated MAX20416ATGH/V+T

Overview

The MAX20416ATGH/V+T from Maxim Integrated is a dual-output, synchronous step-down DC-DC converter designed for automotive instrument cluster and infotainment power rails. It delivers up to 3A per channel from a 3.0V–5.5V input, supports factory-programmed 1.1V/1.8V outputs with ±1.5% accuracy, operates at 2.2MHz fixed frequency, and integrates low R_DS(ON) MOSFETs in a 4mm × 4mm TQFN-24 package.

For engineers reviewing the MAX20416ATGH/V+T datasheet, MAX20416ATGH/V+T pinout, MAX20416ATGH/V+T application, or MAX20416ATGH/V+T equivalent, key selection criteria include dual-channel AEC-Q100 qualification, independent EN/RESET control, spread-spectrum EMI reduction, skip-mode efficiency optimization, and thermal shutdown at 165°C with 15°C hysteresis.

Technical Context

The MAX20416ATGH/V+T implements two independent current-mode synchronous buck regulators with programmable soft-start (2.5ms), cycle-by-cycle overcurrent protection, and individual open-drain RESET outputs asserting on ±3% UV/OV thresholds with 7.4ms hold time. Each channel features dedicated PVx, LXx, PGNDx, and OUTx pins for optimized layout and noise isolation.

Its SYNC pin is factory-configured as an input enabling forced-PWM mode when driven high or skip mode when floating/low; external synchronization accepts 1.8MHz–2.6MHz clocks. The internal oscillator provides ±3% spread-spectrum modulation to reduce radiated emissions without requiring external components.

Key Specifications

Pinout & Package

The MAX20416ATGH/V+T is housed in a lead(Pb)-free, RoHS-compliant 24-pin TQFN package (4mm × 4mm, 0.5mm pitch) with exposed thermal pad. The package supports high-power dissipation (θ_JA = 36°C/W on 4-layer board) and requires soldering the EP pad directly to a solid ground plane for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-output automotive buck converter applications.

Compared with TPS650361RSLR and MPQ4420AGL-AEC1-Z, the MAX20416ATGH/V+T uniquely integrates dual 3A synchronous bucks with factory-set 1.1V/1.8V outputs, spread-spectrum EMI control, and AEC-Q100 Grade-1 compliance in one 4mm × 4mm package - simplifying design, reducing BOM, and ensuring automotive reliability without trade-offs in feature set.

Availability

The MAX20416ATGH/V+T is available at Aetrix Electronics and suitable for automotive instrument cluster, infotainment, and ADAS camera module designs requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.

Supply support for MAX20416ATGH/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 MAX20416 product line delivers highly integrated, AEC-Q100-qualified dual-output DC-DC converters targeting next-generation automotive cockpit electronics requiring compact, low-EMI, and thermally robust power solutions.

FAQ

What is the operating temperature range for the MAX20416ATGH/V+T?

The MAX20416ATGH/V+T is AEC-Q100 Grade-1 qualified and operates from -40°C to +125°C junction temperature. Its thermal shutdown activates at 165°C with 15°C hysteresis, ensuring reliable operation in demanding automotive environments such as instrument clusters and infotainment systems where ambient temperatures exceed 105°C.

Does the MAX20416ATGH/V+T support external synchronization?

Yes, the MAX20416ATGH/V+T supports external synchronization via its SYNC pin, which is factory-configured as an input. When driven with a 1.8MHz–2.6MHz clock signal, it locks the internal 2.2MHz oscillator to the external source - enabling EMI reduction through frequency dithering and precise timing alignment across multiple power rails in complex automotive ECUs.

What are the output voltage options for the MAX20416ATGH/V+T?

The MAX20416ATGH/V+T has factory-preset outputs of 1.1V on OUT1 and 1.8V on OUT2. These fixed voltages eliminate the need for external feedback resistors, reduce component count, and ensure ±1.5% accuracy over temperature and load. Adjustable versions (e.g., MAX20416ATGD/V+) are available but require resistor dividers and compensation capacitors.

How does the MAX20416ATGH/V+T manage light-load efficiency?

The MAX20416ATGH/V+T uses pulse-frequency modulation (skip mode) under light loads to improve efficiency. When the SYNC pin is left floating or pulled low, the IC automatically enters skip mode - disabling switching cycles until output voltage drops below threshold. This reduces gate charge and switching losses, achieving >85% efficiency at 100mA while maintaining tight regulation.

What protection features does the MAX20416ATGH/V+T include?

The MAX20416ATGH/V+T includes cycle-by-cycle overcurrent limiting, thermal shutdown at 165°C with 15°C hysteresis, undervoltage lockout (2.4V–2.9V), and individual open-drain RESET outputs that assert low on ±3% UV/OV deviation with 7.4ms hold time. These features ensure robust operation in automotive environments subject to load dumps, cold cranking, and thermal stress.