AN908 Datasheet

AN908 APPLICATION NOTE

The actual generation of Pentium Pro® microprocessors, requires a power supply with a programmable output voltage that decreases with the increasing of the processor internal clock. At the same time higher output currents are required and superior load transient performance has to be supplied due to.

Features

I12 = 45mA 11.4 12 Test Condition Min. 4.75 Typ. 5 Max. 5.25 0.04 14 Unit V A/µs V Output Characteristics Symbol Parameter Output Voltage range Vonom Io Nominal Output Voltage Output Current Peak Current Regulation Pulse by pulse mode Including variation due to: - Io = min-max - Vo imitial set point accuracy - Line regulation - Output ripple and noise - Load transient dIo/dt = 30A/µs - Temperature Vo = min-max; Io = min-max Vo = min-max Short circuit condition 70 85 1.18 ⋅ VO 12 300 A kHz 0.4 13 ±5 Test Condition By 4 bits VID Min. 2.1 2.9 12.5 Typ. Max. 3.5 Unit V V A A % η Efficiency Out.