Switching Charger ideal for 2000mAh battery capacity

The switching charger with I²C control allows flexible selection of charging conditions and system control.

In some devices the switching MOSFETs can also be set in boost mode where a stable 5V can be supplied from battery to the Vin pin for powering USB-on-the-Go (OTG) devices.

Li-ion Switching Charger

Product	Key Features	P/N
1.55A, I2C Switch-Mode Single Cell Li-Ion Battery Charger with USB On-The-Go (OTG)	4.5V-6V Input voltage Synchronous 3MHz fixed frequency with up to 99.5% duty cycle Ideal for 2000mAh battery capacity	RT9450A
1.55A, I2C Switch Mode Single Cell Li-ion Battery Charger with USB-OTG	4V-6V Input voltage Synchronous 1.5MHz fixed frequency with up to 95% duty cycle State machine controls via IRQ output Ideal for 2,000mAh battery capacity All charge parameters can be executed via the I2C interface WL-CSP-16B 1.7x1.77 package	RT9455
4.0A, I2C Switch Mode Single Cell Li-ion Battery Charger with USB-OTG	4.3V-12V Input voltage Synchronous 375kHz fixed frequency with up to 99.0% duty cycle USB OTG mode boosts the battery voltage to 5V and provides up to 1.6A current to the USB input Ideal for 2,000mAh ~ 4,000mAh capacity batteries All charge parameters can be executed via the I2C interface WQFN-32L 4x4 package	RT9451

Generic Switching Charger

Product	Key Features	P/N
2A Asynchronous Switch Mode Battery Charger	4.5V-30V input voltage Adjustable battery voltages from 2.5V-22V Internal Power MOSFETs 500kHz switching frequency NTC sense for battery temperature monitor WQFN-16L 4x4 package	RT9535A
2A Asynchronous Switch Mode Battery Charger	4.5V-30V input voltage Adjustable battery voltages from 2.5V-25V External Power MOSFETs Input current limit maximizes charging rate 475kHz switching frequency Flag indicates Charging status WQFN-16L 4x4 package	RT9538