Features
• Input voltage range VIN from 2.4 V to 5.5 V
• Constant on time (COT) Control for fast
transient
• PFM/PWM mode or forced PWM mode
operation
• 1% Vout accuracy
• Output current up to 3A
• Power good output
• 4MHz switching frequency
• Overcurrent and short circuit protection
• Output discharge function
• Small size 2.0 x 2.5 x 1.1 mm LGA package
Applications
• Optical modules
• Smart phones
• Wearable electronics
• Camera modules
• Industrial IoT (smart sensors) / NB-IoT
Description
The RSM3203/04/05 are a family of small size, high
efficiency step-down power module optimized for
high density application. The device can operate at
switching frequency up to 4MHz to reduce the size
of external components.
The device has trim option of PFM/PWM mode or
forced PWM mode. 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 via trim,
the device requires a minimum number of external
components for output voltage setting.
The input voltage of RSM3203/04/05 is from 2.4V to
5.5V. The output current is up to 3A.
RSM3203/04/05 are available in a 2.0mm x 2.5 mm,
10-pin LGA package.