Analog Devices ADP5301ACBZ-1-R7 features high efficiency, ultralow quiescent current step-down regulators using only 180nA quiescent current to regulate the output at no load. The ADP5301ACBZ-1-R7 regulators operate from an input startup voltage range of 2.15V to 6.50V, enabling the use of multiple alkaline or NiMH, Li-Ion cells, or other power sources. The output voltage is user-selectable from 0.8V to 5.0V by an external VID resistor and factory fuse. The total solution requires only four tiny external components. 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. The flexible configuration capability during operation of the device enables very efficient power management to meet both the longest battery life and low system noise requirements. Analog Devices offers the ADP5301-EVALZ evaluation board to help designers access the features of the ADP5301ACBZ-1-R7 regulators.
Feature
- Input start-up voltage range: 2.15 V to 6.50 V
- Operates down to 2.00 V voltage
- Ultralow 180 nA quiescent current with no load
- Selectable output voltage of 1.2 V to 3.6V or 0.8V to 5.0V
- ±1.5% output accuracy over full temperature range in PWM mode
- Selectable hysteresis mode or PWM operation mode
- Output current
- Up to 50 mA in hysteresis mode
- Up to 500 mA in PWM mode
- VOUTOK flag monitors the output voltage
- 100% duty cycle operation mode
- 2 MHz switching frequency with optional synchronization input from 1.5 MHz to 2.5 MHz
- QOD option
- UVLO, OCP, and TSD protection
- 9-ball, 1.65 mm × 1.87 mm WLCSP
- −40°C to +125°C junction temperature
Applications
- Energy (gas and water) metering
- Portable and battery-powered equipment
- Medical applications
- Keep-alive power supplies
(Picture: Pinout)
