Analog Devices Inc./Maxim Integrated MAX20416ATGA/V+

Overview

MAX20416ATGA/V+ from Maxim Integrated is a dual-output, synchronous step-down DC-DC converter designed for automotive power rails. It delivers up to 3A per channel from a 3.0V–5.5V input, supports factory-preset 1.5V (OUT1) and 1.2V (OUT2) outputs, achieves ±1.5% output voltage accuracy over load/line/temperature, and operates at 2.2MHz fixed-frequency PWM or skip mode-enabling all-ceramic designs in instrument cluster and infotainment systems.

For engineers reviewing the MAX20416ATGA/V+ datasheet, MAX20416ATGA/V+ pinout, MAX20416ATGA/V+ application, or MAX20416ATGA/V+ equivalent, key selection criteria include AEC-Q100 qualification, dual independent enable/reset pins, programmable spread-spectrum EMI reduction, thermal shutdown at 165°C, and 4mm × 4mm TQFN-24 packaging with exposed pad for automotive-grade thermal performance.

Technical Context

The MAX20416ATGA/V+ integrates two current-mode, synchronous buck regulators sharing a common 2.2MHz oscillator with ±3% spread-spectrum modulation. Each channel features independent EN inputs, open-drain RESET outputs with 7.4ms hold time and ±3% UV/OV threshold accuracy, and cycle-by-cycle current limiting with selectable 3A pMOS thresholds.

Its SYNC pin is factory-configured as an input to select between forced-PWM (logic-high or external clock 1.8–2.6MHz) and skip mode (open or logic-low), while soft-start is factory-set to 2.5ms. The IC uses integrated low-R_DS(ON) MOSFETs (R_HS ≤ 75mΩ, R_LS ≤ 50mΩ) and supports resistor-adjustable feedback via OUT1/OUT2 pins for flexible output configuration.

Key Specifications

Pinout & Package

MAX20416ATGA/V+ 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 automotive-grade thermal dissipation (θ_JA = 36°C/W on 4-layer board) and requires all GND/PGND pins to be connected to a common low-impedance ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPQ4436-AEC1 and TPS650362-Q1, the MAX20416ATGA/V+ uniquely combines dual 3A channels, AEC-Q100 qualification, spread-spectrum EMI suppression, and compact 4mm × 4mm packaging-making it optimal for space-constrained, emission-sensitive automotive domains where independent rail monitoring is critical.

Availability

MAX20416ATGA/V+ is available at Aetrix Electronics and suitable for instrument cluster, infotainment, and ADAS camera module designs requiring stable component supply, automotive-grade reliability, and EMI-compliant power conversion.

Supply support for MAX20416ATGA/V+ 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 high-efficiency, AEC-Q100-qualified dual-output DC-DC converters targeting next-generation automotive infotainment and digital cockpit systems demanding compact, low-EMI, and thermally robust power solutions.

FAQ

What is the operating temperature range for the MAX20416ATGA/V+?

The MAX20416ATGA/V+ is qualified for automotive Grade-1 operation, with a guaranteed operating junction temperature range of -40°C to +125°C. Its thermal shutdown activates at +165°C with 15°C hysteresis, and the 4mm × 4mm TQFN package achieves 36°C/W θ_JA on a four-layer board-ensuring reliable performance in under-dash and instrument panel environments where ambient temperatures exceed 85°C.

Does the MAX20416ATGA/V+ support adjustable output voltages?

The MAX20416ATGA/V+ has factory-preset outputs of 1.5V (OUT1) and 1.2V (OUT2), but its OUT1 and OUT2 pins are functional feedback inputs. By replacing the internal resistor dividers with external networks (R1/R2), users can configure outputs from 0.8V to ~PV − 0.5V. The MAX20416ATGA/V+ datasheet provides Equation 5 (R1 = R2[(V_OUT/0.8V) − 1]) and Equation 6 (C1 = 50·R2/R1 pF) for stable compensation-confirming full adjustability despite the preset default.

How does the SYNC pin function on the MAX20416ATGA/V+?

On the MAX20416ATGA/V+, the SYNC pin is factory-configured as an input. When pulled high or driven with an external 1.8–2.6MHz clock, it forces both buck channels into fixed-frequency PWM mode. When left open or pulled low, it enables skip mode for improved light-load efficiency. Unlike variants with SYNC-as-output, the MAX20416ATGA/V+ does not generate or output a clock signal-its SYNC functionality is strictly input-controlled for mode selection.

What protection features are integrated into the MAX20416ATGA/V+?

The MAX20416ATGA/V+ integrates cycle-by-cycle current limiting (with 3A pMOS threshold), overtemperature shutdown at 165°C, undervoltage lockout (2.7V rising), overvoltage/undervoltage monitoring per channel (±3% accuracy), and soft-start current limiting. Each output has dedicated open-drain RESET pins asserting low for 7.4ms upon fault detection-providing hardware-level fault isolation without software intervention, a key requirement for ISO 26262-compliant automotive subsystems.

Can the MAX20416ATGA/V+ operate with all-ceramic output capacitors?

Yes, the MAX20416ATGA/V+ is explicitly designed for stability with low-ESR ceramic capacitors. Its current-mode control architecture and internal compensation eliminate the need for electrolytic or tantalum caps. The typical application circuit uses 47µF X7R ceramics per output, and the datasheet confirms stability with C_OUT ≥ 10.5µs × I_MAX/V_OUT (e.g., ≥26.25µF for 1.2V/3A). This enables fully ceramic, compact, and long-lifetime power designs-critical for automotive field reliability.