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ANALOG DEVICES MAX20021ATIB/V+

DC/DC Switching Regulator, Fixed, Synchronous, 4 Out, 3V to 5VIn, 3.3V/1AOut, 3.2Mhz, TQFN-28

ANALOG DEVICES MAX20021ATIB/V+
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Manufacturer Part No:
MAX20021ATIB/V+
Order Code:
2758893
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Technical Datasheet:
MAX20021ATIB/V+   Datasheet
ECAD / MCAD
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Product Range Selector (MAX20021)

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Product Overview

The MAX20021ATIB/V+ 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. It offers four factory-preset output voltages to achieve ±3% output-voltage accuracy and can deliver up to 1A of current. It features fixed-frequency PWM-mode operation with a switching frequency of 3.2MHz. The low-resistance on-chip switches ensure high efficiency at heavy loads while minimizing critical inductances, making layout a much simpler task with respect to discrete solutions. It offers a spread-spectrum option to reduce radiated emissions. 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.
  • Operates from 3V to 5.5V makes it ideal for automotive point-of-load and post regulation application
  • Current configuration is 1A(CH1, CH4), 0.5A(CH2, CH3)
  • Output voltage is 3.3V, 1.25V, 2.65/1.8V, 1.8V respectively
  • Active time out period is 20,480cycles
  • Individual enable inputs and power-good outputs to simplify sequencing
  • I/P overvoltage protection, undervoltage monitoring, undervoltage lockout, overtemperature shutdown
  • Cycle-by-cycle current limiting
  • Soft-start and supply sequencing reduces inrush current
  • Internal current sensing and loop compensation reduce board space and system cost
  • Operating temperature range from -40°C to +125°C

Applications

Automotive, Power Management, Industrial

Product Information

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:
Fixed

:
4 Output

:
Synchronous Buck (Step Down)

:
3V

:
5V

:
1A

:
500mA

:
TQFN

:
28Pins

:
3.3V

:
1.25V

:
125°C

:
MAX20021

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Technical Documents (1)

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