Power Management IC for DSC/DVCs - BD9355MWV

7 Channel Switching Regulator Controller for Digital Camera that contains an internal FET.
Built in the function that dim a white LED for back light with a diming set signal from a microcomputer.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD9355MWV-E2 Active UQFN036V5050 2500 2500 Taping Yes
ch 7
Vin1(Min.)[V] 1.5
Vin1(Max.)[V] 5.5
SW frequency(Max.)[MHz] 2.0
Circuit Current(Typ.)[mA] 5.0
Reference Voltage1[V] 0.8
Reference Voltage2[V] 1
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
  • ・1.5V minimum input operating
    ・Supplies power for the internal circuit by step-up converter(CH1).
    ・CH1step-up converter, CH2cross converter, CH3,4 step-down converter,
        CH5 inverting converter for CCD, CH6 boost converter for CCD, CH7 boost converter for LED
    ・All channels contain internal Power MOSFET and compensation.
    Built-In Over Voltage Protection (OVP) for CH1,2,7
    ・Operating frequency 2.0MHz(CH3,4)、1MHz(CH1,2,5~7)
    ・Contains sequence control circuit for CH1~4. It is possible to select sequence CH1⇒CH3⇒CH4⇒CH2 and
        CH1⇒CH4⇒CH3⇒CH2 by SEQ_CTL pin
    ・Built-In discharge switch (CH2,3,4) and contains off sequence control circuit for CH1~4.
        CH1,3 turn off after CH2,4 output voltage discharged.
    ・Built-In Short-circuit Protection (SCP)
    ・CH1 have backgate control circuit CH6 have high side switches with soft start function.
    ・Thermally enhanced UQFN036V5050 package(5mm×5mm, 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.