Single-channel Source Voltage Output Power Supply ICs with Gamma Buffer Amp - BD8157EFV

The BD8151EFV, BD8157EFV power supply IC are designed for use with TFT-LCD panels. It incorporates a built-in source voltage step-up switching regulator and gamma correction buffer amp. The combination of a source power supply and gamma correction buffer on a single chip delivers significant cost savings. Compatible with input voltages from 2.5V to 5.5V (BD8151EFV), 2.1V to 4.0V (BD8157EFV), the IC supports low-voltage operation and reaches over 85% efficiency with a 2.5V input, contributing to low power consumption designs.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD8157EFV-E2 Active HTSSOP-B20 2500 2500 Taping Yes
Grade Standard
Vin1(Min.)[V] 2.1
Vin1(Max.)[V] 4.0
SW frequency(Max.)[MHz] 1.2
Output Source Voltage[V] to 14
Output Logic Voltage[V] -
Output Logic Voltage2[V] -
Output Gate Voltage[V] -
Start up Sequence Circuit No
VCOM[ch] 1
Buffer for Gamma[ch] 4
Auto Data Read No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
  • ・Incorporates a step-up DC / DC converter.
    ・4ch Buffer.
    ・1ch VCOM.
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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.