RS53204
2.4V to 5.5V Input, small size 2A Step-Down Converter
Features
- Input voltage range VIN from 2.4 V to 5.5V
- Constant on time (COT) Control for fast transient
- DCM mode operation
- 1% Vout accuracy
- Output current up to 3A
- Power good output
- 4MHz switching frequency
- Overcurrent and short circuit protection
- Low Rcson: 26 mΩ for both high side and low side
- Output discharge function
- Small 1.2 x 0.8mm WLCSP package
Description
The RS53203/04/05 are a family of small size, high efficiency step-down converters optimized for high density application. The device can operate at switching frequency up to 4MHz to reduce the size of external components.
The device employes PFM/PWM mode operation. At PFM/PWM mode, the device transits between PFM and PWM mode automatically to save power at light load condition. At forced PWM mode, the device operates at 4MHz switching frequency.
With 4 selectable output voltage options, the device requires minimum number of external components for output voltage setting.
The input voltage of RS53203/04/05 is from 2.4V to 5.5V. The output current is up to 3A.
RS53203/04/05 are available in a 0.8mm x 1.2 mm, 6-pin WLCSP package.
Applications
- Optical modules
- Smart phones
- Wearable electronics
- Camera modules
- Industrial IoT (smart sensors) / NB-IoT
