BD3531F - Rohm

BD3531F Termination Regulator

BD3531F is a termination regulator that complies with JEDEC requirements for DDR-SDRAM. This linear power supply uses a built-in N-channel MOSFET and high-speed OP-AMPS specially designed to provide excellent transient response. It has a sink/source current capability up to 1.5A and has a power supply bias requirement of 5.0V for driving the N-channel MOSFET.

Features

 Incorporates a Push-Pull Power Supply for Termination (VTT)
 Incorporates a Reference Voltage Circuit (VREF)
 Incorporates an Enabler
 Incorporates an Undervoltage Lockout (UVLO)
 Incorporates a Thermal Shutdown Protector (TSD)
 Compatible with Dual Channel (DDR-II) Applications Power supply for DDR I/II - SDRAM Key Specifications
 Termination Input Voltage Range: 1.0V to 5.5V
 VCC Input Voltage Range: 4.5V to 5.5V
 Output Voltage: 1/2xVVDDQ V(Typ)
 Output Current: 1.5A(Max)
 High Side FET ON-Resistance: 0.4Ω(Typ)
 Low side FET ON-Resistance: 0.4Ω(Typ)
 Standby Curre.