Datasheet Linear Technology LTC3675-1

Manufacturer	Linear Technology
Series	LTC3675-1

7-Channel Configurable High Power PMIC

Datasheets

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PDF, 594 Kb, Revision: C, File uploaded: Sep 22, 2017

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Packaging

	LTC3675EUFF-1#PBF	LTC3675EUFF-1#TRPBF
N	1	2
Package	4x7 QFN-44 Package Outline Drawing	4x7 QFN-44 Package Outline Drawing
Package Code	UFF	UFF
Package Index	05-08-1762	05-08-1762
Pin Count	44	44

Parametrics

Parameters / Models	LTC3675EUFF-1#PBF	LTC3675EUFF-1#TRPBF
Boost Switch Current, A	1	1
Buck Output Current, A	0.5, 0.5, 1, 1	0.5, 0.5, 1, 1
Buck-Boost Output Current, A	1	1
Demo Boards	DC1607A	DC1607A
Export Control	no	no
Features	Burst Mode, I2C Control, Adjustable Slew Rate	Burst Mode, I2C Control, Adjustable Slew Rate
LDO Output Current, A	0.025	0.025
Number of Outputs	7	7
Operating Temperature Range, °C	0 to 85	0 to 85
Vin Max, V	5.5	5.5
Vin Min, V	2.7	2.7

Eco Plan

	LTC3675EUFF-1#PBF	LTC3675EUFF-1#TRPBF
RoHS	Compliant	Compliant

Other Options

LTC3675

Articles

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4mm × 7mm IC Produces Seven Regulated Outputs and a Dual-String LED Driver &mdash LT Journal
PDF, 599 Kb, File published: 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 regulatorвЂ™s operating mode can be programmed via I2C.
The regulators also feature
I2C-programmable slew rate control …

Model Line

Series: LTC3675-1 (2)

LTC3675EUFF-1#PBF LTC3675EUFF-1#TRPBF

Manufacturer's Classification

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