DESCRIPTION

The BL8037 is a fully integrated,synchronous rectified step-down converter that provides wide 4.2V to 28V input voltage range and 2A continuous load current capability.The BL8037 can operate at PFM mode to achieve high efficiency and reduce power loss at light load.In shutdown mode,the Max supply current is about 3μA.

The BL8037 protection function includes cycle-bycycle current limit,UVLO and thermal shutdown.Besides,internal soft-start prevents inrush current at fast power-on.This device uses slope compensated current mode control which provides fast load transient response.Internal loop compensation function reduces the external compensator components and simplifies the design process.

The BL8037 requires a minimum number of readily available standard external components and is available in ESOP-8(Exposed Pad)and SOT23-6 packages and provides good thermal conductance.

FEATURES

•Wide input voltage range:4.2V to 28V

•2A output current

•0.8V reference voltage

•Low RDS(ON)integrated power MOSFET(180/110mΩ)

•3μA(Max)shutdown current

•Integrated internal compensation

•High efficiency at light load

•Internal 1ms soft-start

•Cycle-by-cycle current limit

•Over-temperature protection with auto recovery

•Under voltage lockout(UVLO)

•Hiccup short circuit protection

•Available in ESOP-8 and SOT23-6 packages

•RoHS compliant

APPLICATIONS

•Distributed power system

•Flat panel television and monitors

•STB(Set-top-box)

•Networking,XDSL modem