ADP2441ACPZ-R7

ADP2441 is a constant frequency, current mode control, synchronous, step-down DC-to-DC regulator that is capable of driving loads up to 1A with excellent line and load regulation characteristics. This operates with a wide input voltage range of 4.5V to 36V, which makes it ideal for regulating power from a wide variety of sources. In addition, this has a very low minimum on time (50ns) and is, therefore, suitable for applications requiring a very high step-down ratio. At light load conditions, the regulator operates in pulse skip mode by skipping pulses and reducing switching losses to improve energy efficiency. In addition, at medium to heavy load conditions, the regulator operates in fixed frequency pulse-width modulation (PWM) mode to reduce electromagnetic interference (EMI). Application includes point-of-load applications, distributed power systems, industrial control supplies, and standard rail conversion to 24V/12 V/5 V/3.3V.

• Pulse skip mode at light load for power saving
• Precision enable input pin, open-drain power good
• External soft start with tracking, overcurrent-limit protection
• Shutdown current of less than 15µA, UVLO and thermal shutdown
• Input voltage range from 4.5 to 36V (VIN=4.5V to 36 V, TJ=−40°C to +125°C)
• Typical supply current is 1.7mA (VEN=1.5 V not switching, TJ =-40 to +125°C)
• Typical regulator output voltage is 5V (VIN=5V to 36V, TJ=−40°C to +125°C)
• Switching frequency range from 300 to 1000KHz (VIN=4.5V to 36V, TJ=−40°C to +125°C)
• 12-lead frame chip scale package [LFCSP-WQ]
• Temperature rating range from -40°C to +125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party