FB3480 new high speed current mode control IC master chip (for power supplies)

A reconfigurable high-speed switching regulator controller integrated circuit for power supply applications is introduced. The integrated circuit, designated as the FB3480, is an analog array chip with several preoptimized functional blocks usually found in high-performance controllers. In addition the chip has several large sections that can be reconfigured to meet specific design needs. The FB3480 contains a high-speed error amplifier with a bandwidth >4 MHz, a precision bandgap voltage reference (1%), a precision high-speed oscillator of frequency f>1 MHz, dual totem-pole output stages with an output >1.5 A, undervoltage lockout, high-speed ECL/EFL logic, and many uncommitted components for circuit customization. The discussion covers the FB3480 along with two of its derivatives, the ML4825 and the LM4809.<
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