Step-up and inverted Output Power Supply for TFT-LCD Displays - BD83854MUV

BD83854MUV is a step-up switching regulator and charge pump inverter for small TFT-LCD Displays. It has a wide input voltage range of 2.5V to 4.5V that is suitable for portable applications. In addition, its small package design is ideal for miniaturizing the power supply.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD83854MUV-E2 Active VQFN20PV3535 2500 2500 Taping Yes
Grade Standard
ch 2
Vin1(Min.)[V] 2.5
Vin1(Max.)[V] 4.5
SW frequency(Max.)[MHz] 1.0
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • Wide input voltage range of 2.5V to 4.5V
    • High frequency operation
    • Output Discharge Independent ON/OFF signal(STBYP, STBYN)
    • Circuit protection: Over Current Protection (OCP), Short Current Protection (SCP), Under Voltage Lock Out (UVLO), Thermal Shutdown (TSD)
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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.