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Maxim Integrated - MAX797HESE+ - MAX797HESE+ - DC/DC Controller, Synchronous Buck (Step Down), 4.5 V to 30 V, 1 Output, 340 kHz, NSOIC-16

  • MFR SKU: MAX797HESE+
  • ITEM #: 6751074
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$21.95
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ITEM #: 6751074
Product Overview

The MAX797HESE+ is a high voltage, step-down controller with synchronous rectifier for CPU power in 16 pin NSOIC package. A 40V rating on the power stage’s input allows operation with high-cell-count batteries and a wide range of AC adaptors. This buck controller achieves 96% efficiency by using synchronous rectification and Idle Mode control scheme to extend battery life at full-load (up to 10A) and no-load outputs. Excellent dynamic response corrects output...
ITEM #: 6751074
Product Overview

The MAX797HESE+ is a high voltage, step-down controller with synchronous rectifier for CPU power in 16 pin NSOIC package. A 40V rating on the power stage’s input allows operation with high-cell-count batteries and a wide range of AC adaptors. This buck controller achieves 96% efficiency by using synchronous rectification and Idle Mode control scheme to extend battery life at full-load (up to 10A) and no-load outputs. Excellent dynamic response corrects output transients caused by latest dynamic-clock CPUs within five 300KHz clock cycles. Unique bootstrap circuitry drives inexpensive N-channel MOSFETs, reducing system cost and eliminating the crowbar switching currents found in some PMOS/NMOS switch designs. It has a logic controlled and synchronized fixed-frequency, pulse width modulating (PWM) operating mode which reduces noise and RF interference in sensitive mobile-communications and pen-entry applications. It is used in notebook and subnotebook computers.
  • Supply voltage range is 4.5V to 30V
  • Operating temperature range from -40°C to 85°C
  • Up to 40V power input
  • 2.5V to 6V adjustable output
  • Preset 3.3V and 5V outputs (at up to 10A)
  • 5V linear regulator output
  • Precision 2.505V reference output
  • Automatic bootstrap circuit, programmable soft start
  • Quiescent current (VIN = 12V, VOUT = 5V) is 375µA
  • Shutdown current is 1µA

Applications

Power Management, Industrial, Portable Devices
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Maxim Integrated - MAX797HESE+ - MAX797HESE+ - DC/DC Controller, Synchronous Buck (Step Down), 4.5 V to 30 V, 1 Output, 340 kHz, NSOIC-16

  • Item #: 6751074
  • MFR SKU: MAX797HESE+

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