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The MAX20412ATJE is an automotive low-voltage dual-channel step-down controller with an input voltage range of 3.0V to 5.5V and an output voltage range of 0.25V to 1.275V. The controller architecture supports a load current of up to 30A per phase. Channel 1 can be optionally operated with two phases to provide a higher load current. Therefore, the MAX20412ATJE is highly suitable for automotive point-of-load (PoL) and rear-mounted regulation applications.

Main characteristics

The features of MAX20412ATJE include:

Adopt a 2-channel, highly efficient DC-DC controller with a small solution size

Working power supply voltage range: 3.0V to 5.5V

OUT1 supports 60A (two-phase operation)

OUT2 supports 30A

High-precision voltage regulators for application processors

Output voltage accuracy: ±2%

Differential remote voltage detection

I2C control output voltage: 0.25V to 1.275V, with a step of 6.25mV

Outstanding load transient performance

Programmable compensation

The low-noise feature can reduce EMI

Operating frequency: 2.2MHz or 1.1MHz

Spread spectrum option

Frequency synchronous input/output

Current mode, forced PWM and jump working mode

It has stable performance and is suitable for automotive environments

Independent enable input and PGOOD output

Low RDS(ON) external MOSFET

Over-temperature and short-circuit protection

32-pin (5mm x 5mm) TQFN package with exposed pads

Operating temperature range: -40 °C to +125°C

Passed the EC-Q100 certification

Typical application scenarios

The MAX20412ATJE device is mainly applied in automotive electronic systems, especially in scenarios that require low-voltage power management, such as in-vehicle entertainment systems, instrument panel displays, and sensor power supply.

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