The MAX20412 is a dual-output, high-efficiency, synchronous step-down controller IC that operates with a 3.0V to 5.5V input voltage range and provides a 0.25V to 1.275V output voltage range. The controller architecture enables up to 30A of load current per phase. Channel 1 has an option to operate with two phases to deliver higher load current, making this device ideal for automotive point-of-load (PoL) and post-regulation applications.
The IC achieves ±2% output error over load, line, and temperature ranges. The IC features a 2.2MHz/1.1MHz fixed-frequency PWM mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. The MAX20412 is offered with factory-preset output voltages (see the Selector Guide for options). The I2C interface supports dynamic voltage adjustment with programmable slew rates for each channel. Other features include programmable soft-start, overcurrent, and overtemperature protections.Part Number | VIN (V) | VIN (V) | VOUT1 (V) | VOUT1 (V) | Preset VOUT (V) | Output Adjust. Method | IOUT1 (A) | Switch Type | Synchronous Switching | Power Good Signal | DC-DC Outputs | Oper. Freq. (kHz) | Design Tools | Package/Pins | Budgetary Price | ||||||||||||||||||||||
min | max | min | max | See Notes | |||||||||||||||||||||||||||||||||
MAX20412 | 3 | 5.5 | 0.25 | 1.275 |
| Digital/VID | 60 | External | Yes | Yes | 2 |
| EE-Sim |
| $2.69 @1k | ||||||||||||||||||||||
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