SY21242 regulator equivalent, 2.5a current limit step-up regulator.
* Wide 2V to 6V Input Range
* Up to 6V Output Voltage
* Low RDS(ON) for Internal N-Channel
MOSFET: 120mΩ
* 2.5A Minimum Switch Current Limit
* 1MHz Sw.
* Solar Battery Charger
* Backup Battery
Typical Application
VIN CIN
ON/OFF
L
LX
GND EN
VDD
R1 FB
R2
VOUT.
The SY21242 high efficiency step-up regulator operates using current mode control, over an input voltage range from 2V to 6V. It integrates an Nchannel MOSFET with low 120mΩ RDS(ON) to minimize conduction loss.
The 1MHz switching frequency and intern.
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