Datasheet Linear Technology LTC3675EUFF-1#TRPBF — Datenblatt

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LTC3675

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  4mm × 7mm IC Produces Seven Regulated Outputs and a Dual-String LED Driver &mdash LT Journal
  PDF, 599 Kb, Datei veröffentlicht: Oct 27, 2010
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  4mm Г— 7mm IC Produces Seven Regulated Outputs
  and a Dual-String LED Driver
  Aspiyan Gazder The LTC3675 is a space-saving single-chip power solution for multirail applications
  that run from a single Li-ion cell. Its 4mm Г— 7mm QFN contains two 500mA buck
  regulators, two 1A buck regulators, a 1A boost regulator, a 1A buck-boost regulator,
  a boost LED driver capable of driving dual LED strings up to 25mA, and an alwayson 25mA LDO for powering a housekeeping microprocessor. All regulators can be
  controlled via I2C. Figure 1 shows an eight-rail solution run from a single Li-ion battery.
  SWITCHING REGULATOR FEATURES All of the voltage regulators in the LTC3675
  are internally compensated monolithic
  synchronous regulators. The buck regulators and the buck-boost regulator can be
  enabled via enable pins or I2C, whereas
  the boost regulator is enabled via I2C only.
  The feedback regulation voltage of
  the regulators can be programmed via
  I2C from 425mV to 800mV in 25mV steps.
  Each regulator offers two modes of light
  load operation. The buck regulators offer
  Burst Mode operation for the greatest efficiency and pulse skipping-mode for more
  predictable EMI. The boost and buck-boost
  regulators offer Burst Mode operation
  and PWM mode. Each regulator’s operating mode can be programmed via I2C.
  The regulators also feature
  I2C-programmable slew rate control …

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Herstellerklassifikation

• Power Management > Switching Regulator > Digitally Programmable Regulators
• Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers
• Power Management > PMIC & Multifunction > Multitopology DC/DC

Andere Namen:

LTC3675EUFF-1TRPBF, LTC3675EUFF-1 TRPBF, LTC3675EUFF1#TRPBF, LTC3675EUFF 1#TRPBF