
ROHM Semiconductor
Description
BD95861MUV is a 1ch synchronous buck converter that can generate output voltage (0.8V to 5.5V) at the input voltage range (7.5V to 18V). Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power transistors. The IC also incorporates H3RegTM technology, a Rohm proprietary constant ON TIME control mode which facilitates ultra-high transient response against changes in load without external compensation components. Fixed soft start function, power good function, and short circuit / over voltage protection with timer latch functions are incorporated. The BD95861MUV is designed for power supplies for Digital AV Equipment.
FEATUREs
◾ Input Voltage Range: 7.5V to 18.0V
◾ Reference Voltage 0.8V±1.5%
◾ Output Voltage Range: 0.8V to 5.5V
◾ Output Current: 6.0A (Max.)
◾ Switching Frequency: 350kHz to 800kHz
(depend on input-output condition)
◾ Built-in Power MOS FET
High-side Nch FET ON resistance: 50mΩ (typ.)
Low-side Nch FET ON resistance: 30mΩ (typ.)
◾ Fast Transient Responses due to H3Reg control
◾ Over Current Protection (OCP) – Cycle-by-Cycle
◾ Thermal Shut Down (TSD)
◾ Under-Voltage Lock-Out (UVLO)
◾ Short Circuit Protection (SCP)
◾ Over Voltage Protection (OVP)
◾ Fixed Soft Start (1msec ; typ)
◾ Power Good function
APPLICATIONs
◾ LCD TVs
◾ Set Top Boxes (STB)
◾ DVD/Blu-ray players/recorders
◾ Broadband Network and Communication Interface
◾ Amusement, other.