Power Management IC for DSC/DVCs - BD8355MWV

D8355MWV is a system switching regulator for Li 2 cell composed of 6 step-down synchronous rectification channels and 1 step-up Di rectification channel for LED application. Using a charge-pump system for high side FET driver and including power MOSFET reduce the number of peripheral devices and realize high efficiency.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD8355MWV-E2 Active UQFN056V7070 1500 1500 Taping Yes
ch 7
Vin1(Min.)[V] 4.0
Vin1(Max.)[V] 10.0
SW frequency(Max.)[MHz] 1.8
Circuit Current(Typ.)[mA] 6.0
Reference Voltage1[V] 0.8
Reference Voltage2[V] 1
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
  • ・Includes step-down 6 CH (CH1~6).
    ・Includes step-up for LED 1CH (7CH).
    ・Includes Power MOSFET for all channels.
    ・Includes Charge-pump circuit for high side driver.
    ・Operating frequency of 750 kHz.
    ・CH1 and 4 are common, 3 and 5 are also common,
        and others are possible to turn ON/OFF independently.
    ・Includes Short Circuit Protection (SCP)
    ・Includes Under Voltage Lock Out (UVLO)
    ・Includes Thermal Shut Down (TSD).
    ・Includes Over Voltage Protection.
    ・Thermally enhanced UQFN056V7070 package (0.4mm pitch)
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Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.