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MAX77505 - 4.6A Switching Current Low IQ Buck Converter

General Description

The MAX77505 is a low-quiescent current (800nA typ), high-efficiency hysteretic buck converter operating from a 2.5V to 16V input voltage range.

The device offers high efficiency over the entire load range.

Key Features

  • Input Voltage: 2.5V to 16V.
  • Output Voltage: 0.8V to 5.5V.
  • Long Battery Life.
  • 70nA Shutdown Current.
  • 800nA Ultra-Low Quiescent Current (IQ).
  • 86% Efficiency at 100µA Load at 7.6VIN, 3.3VOUT.
  • 95% Peak Efficiency at 7.6VIN, 3.3VOUT.
  • POKB Output (Open-Drain).
  • SEL Pin for Output Voltage Selection.
  • Protections Features.
  • Cycle-by-Cycle Inductor Peak Current Limit.
  • Short Circuit, Undervoltage Lock.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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16V Input, 4.6A Switching Current Low IQ Buck Converter MAX77505 General Description The MAX77505 is a low-quiescent current (800nA typ), high-efficiency hysteretic buck converter operating from a 2.5V to 16V input voltage range. The device offers high efficiency over the entire load range. Hence, it is ideal for either a primary battery or four alkaline batterypowered applications, which require long standby/idling time with short working time, such as asset tracking and door-lock devices. A resistor (RSEL) selects one of thirty preset output voltages between 0.8V and 5.5V. The device has input undervoltage lockout, cycle-by-cycle switch current limit, and thermal shutdown to protect the system and the device itself. The device is available in a 10-lead FC2QFN package (2.0mm x 2.