RS53202
2.15V to 5.5V Input, 550mA, Step-Down Converter With Ultra-low Quiescent Current
Features
- Input voltage range VIN from 2.15 V to 5.5 V
- 60nA operating quiescent current
- Output current up to 550 mA
- Very low operational quiescent current
- Eight output voltage options from 1.2V to 3.3V
- 100% duty-cycle mode at low VIN condition
- Power save mode for PFM operation at light load condition
- Output discharge function
- Small 1.55mm x 0.86mm, 8-ball WCSP package
- RoHS compliant and Green
Description
The RS53201 is a high efficiency step-down converter with ultra-low 60nA operating quiescent current. The device can operate at 100% duty-cycle mode with 120nA quiescent current, which further extends battery lift at the end of discharge.
With power save mode, the device automatically transits between PFM and PWM mode to save power at light load condition. At PWM mode, the device operates at 1.2MHz switching frequency.
With 8 output voltage options via VSEL pins, the device requires a minimum number of external components for output voltage setting.
The input voltage of RS53201 is from 2.15V to 5.5V. The output current is up to 550mA.
Applications
- Smart meters, smart thermostats
- Smart watch
- Asset tracking devices
- Wearable electronics
- Medical sensor patches and patient monitors
- Energy harvesting
