25uA Low-power Buck DCDC

Overview

This DCDC IP is an ultra-low power and high efficiency PWM step-down
DC/DC convertor IP, with fast transient response and accurate regulation. Both the main
(P-Channel MOSFET) and synchronous (N-Channel MOSFET) switches are integrated.
It provides PWM mode and PFM mode that can be automatically switched. The converter
operates on PWM mode with 50mA or higher load current. Lighter load current causes it
automatically switching into PFM mode.
It can apply to on-chip digital circuits which need fast respond power supply.

Key Features

  • Quiescent current is low to 30uA
  • Suitable for lithium-ionbattery-powered applications
  • Output voltage can be programmed
  • PFM mode and PWM mode can be automatically switched by different loads
  • Low output ripple
  • Fast transient response
  • Support soft start function
  • Output short and over-current protection
  • Operating junction temperature range: -40°C~125°C

Applications

  • IoT
  • MCU

Technical Specifications

Maturity
Available on request
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Semiconductor IP