ADP5301ACBZ-2-R7

ADP5301 is a high-efficiency, ultralow quiescent current step-down regulator that draws only a 180nA quiescent current to regulate the output at no load. This runs from an input start-up voltage range of 2.15V to 6.50V, allowing the use of multiple alkaline/NiMH, Li-Ion cells, or other power sources. The output voltage is selectable from 0.8V to 5.0V by an external VID resistor and factory fuse. The total solution requires only four tiny external components. It can operate between hysteresis mode and PWM mode via the SYNC/MODE pin. The regulator in hysteresis mode achieves excellent efficiency at a power of less than 1mW and provides up to 50mA of output current. The regulator in PWM mode produces a lower output ripple and supplies up to 500mA of output current. Application includes energy (gas and water) metering, portable and battery-powered equipment, medical applications, keep-alive power supplies.

• ±1.5% output accuracy over full temperature range in PWM mode
• Input voltage range from 2.15 to 6.50V (VIN=3.6V, -40°C to +125°C)
• Typical shutdown current is 18nA (VEN=0V, VIN=3.6V, -40°C ≤ TJ ≤ +85°C)
• Typical operating quiescent current in hysteresis mode is 180nA (-40°C ≤ TJ ≤ +85°C, VIN=3.6V)
• Typical UVLO threshold (rising) is 2.06V (VIN=3.6V, -40°C to +125°C)
• Typical switching frequency in PWM mode is 2MHz (VIN=3.6V, -40°C to +125°C)
• Output options by VID resistor range from 0.8 to 5.0V (VIN=3.6V, -40°C to +125°C)
• Typical default soft start time is 350µs (factory trim, 1 bit 350µs and 2800µs)
• 9-ball wafer level chip scale package [WLCSP]
• Temperature 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