Reduce component count and improve efficiency in SLIC and RF power supplies
Tick Houk
Abstract
The use of the LTC3704 to reduce component count and improve efficiency in SLIC and RF power supplies is described.
Keywords
DC/DC controller
SLIC power supply
LTC3704
Introduction
Nonisolated power supplies with negative output voltages require op amps and other “glue” circuitry in order to level-shift the feedback voltage to the error amplifier. In applications such as SLIC (subscriber line interface circuit) power supplies, this extra circuitry adds unwanted cost and requires more space on the PC board, with no increase in system performance.
The LTC3704 is a high performance, single-ended current mode DC/DC controller IC ...
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