ROHM BD95841

Description

BD95841MUV is a 1ch synchronous buck converter that can generate output voltage (0.8V to 5.5V) at the input voltage range (7.5V to 15V). Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power transistors. The IC also incorporates H3 RegTM 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 BD95841MUV is designed for power supplies for Digital AV Equipment.

Features

• Input Voltage Range: 7.5V to 15.0V
• Reference Voltage: 0.8V±1.5%
• Output Voltage Range: 0.8V to 5.5V
• Output Current: 4.0A (Max.)
• Switching Frequency: 500kHz to 800kHz（depend on input-output condition）
• Built-in Power MOS FETHigh-side Nch FET ON resistance: 65mΩ(typ.)Low-side Nch FET ON resistance: 45mΩ(typ.)
• Fast Transient Responses due to H3 Reg 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

Typical applications

• LCD TVs/ Set Top Boxes (STB)/ DVD/Blu-ray players/recorders/ Broadband Network and Communication Interface
• Amusement, other

More information

• Datasheet
• IC product information