MAX20022ATIA/V+

直流/直流POL转换器, 可调, 降压, 2.2 MHz, 3 V至5.5 V输入, 1 V至4 V/1 A输出, TQFN-28

The from Products is an Automotive quad, low-voltage step-down DC to DC converter in 28 pin TQFN-EP package. This power-management IC PMIC integrates four low-voltage, high-efficiency, step-down DC to DC converters. Adjustable output-voltage can be set to any desired values between 1.0V and 4.0V using an external resistive divider. It features fixed-frequency PWM-mode operation with a switching frequency of 2.2MHz. The low-resistance on-chip switches ensure high efficiency at heavy loads while minimizing critical inductances, making the layout a much simpler task with respect to discrete solutions. Two of four buck converters operate 180° out-of-phase with the internal clock. This feature reduces the necessary input capacitance and improves EMI as well. All four buck converters operate in constant-PWM mode outside the AM band. It offers a SYNC input to synchronize to an external clock.

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Operates from 3V to 5.5V makes it ideal for automotive point-of-load and post regulation application

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Current configuration is 1ACH1, CH2, CH3, CH4

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Output voltage is Adjustable

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Active time out period is 256cycles

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Individual enable inputs and power-good outputs to simplify sequencing

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Input overvoltage protection, undervoltage lockout, overtemperature shutdown

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Cycle-by-cycle current limiting

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Soft-start and supply sequencing reduces inrush current

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Internal current sensing and loop compensation reduce board space and system cost

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