The BLL2620 is a high-efficiency DC-DC step-down converter capable of delivering 5A of output current. It operates from an input voltage range of 5V to 28V and provides output voltages as low as 0.8V; its protection features include cycle-by-cycle current limiting. , hiccup short circuit protection, undervoltage lockout and thermal shutdown. This product has good applicability and has two operating modes: PFM and PWM. The switching frequency can be adjusted by changing the external resistor value of the RT pin. The COMP pin allows optimization of loop compensation to achieve fast transient response, making it convenient for users to be flexible according to actual needs. application. Main applications include distributed power systems, flat-panel TVs and monitors, wireless chargers, etc.
1、Low RDS(ON) integrated power MOSFET (typ. 25mΩ)
2、Wide input voltage range: 5V to 28V
3、Adjustable output voltage as low as 0.8V
4、5A output current
5、Output soft start and PG function
6、High efficiency at light load
7、Cycle-by-Cycle Current Limit
8、Over-temperature protection with automatic recovery function
9、Undervoltage lockout
10、Hiccup short circuit protection
11、Switching frequency is adjustable from 150KHz
12、Available in QFN4x4-14 package
1、Distributed power system
2、Flat panel television and monitors
3、Wireless chargers
4、Networking, XDSL modem
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