FB3480 new high speed current mode control IC master chip [for power supplies]

Author

Nalbant, Mehmet K. ; Davis, W. Richard

Author_Institution

Micro Linear Corp., San Jose, CA, USA

fYear

1989

fDate

13-17 Mar 1989

Firstpage

151

Lastpage

158

Abstract

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

Keywords

controllers; power integrated circuits; power supplies to apparatus; voltage regulators; FB3480; LM4809; ML4825; analog array chip; bandgap voltage reference; bandwidth; design; error amplifier; high-speed ECL/EFL logic; high-speed oscillator; power supplies; switching regulator controller integrated circuit; undervoltage lockout; Analog integrated circuits; Application specific integrated circuits; Bandwidth; Frequency; High speed integrated circuits; Photonic band gap; Power supplies; Regulators; Switching circuits; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1989. APEC' 89. Conference Proceedings 1989., Fourth Annual IEEE

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/APEC.1989.36963

Filename

36963