LTC3374
26
3374fc
For more information www.linear.com/LTC3374
LINEAR TECHNOLOGY CORPORATION 2013
LT 1015 REV C • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LTC3370/
LTC3371
4-Channel Configurable DC/DC
with 8 × 1A Power Stages
4 Synchronous Buck Regulators with 8 × 1A Power Stages. Can Connect Up to Four Power Stages
in Parallel to Make a Single Inductor, High Current Output (4A Maximum), 8 Output Configurations
Possible, Precision PGOODALL Indication (LTC3370) or Precision RST Monitoring with Windowed
Watchdog Timer (CT Programmable, LTC3371), 38-Lead (5mm × 7mm × 0.75mm) QFN
and TSSOP
Packages (LTC3371) and 32-Lead (5mm × 5mm × 0.75mm) QFN Package (LTC3371).
LTC3589 8-Output Regulator with
Sequencing and I
2
C
Triple I
2
C Adjustable High Efficiency Step-Down DC/DC Converters: 1.6A, 1A, 1A. High Efficiency 1.2A
Buck-Boost DC/DC Converter, Triple 250mA LDO Regulators. Pushbutton On/Off Control with System
Reset, Flexible Pin-Strap Sequencing Operation. I
2
C and Independent Enable Control Pins, Dynamic
Voltage Scaling and Slew Rate Control. Selectable 2.25MHz or 1.12MHz Switching Frequency, 8µA
Standby Current, 40-Pin 6mm × 6mm × 0.75mm QFN.
LTC3675 7-Channel Configurable High
Power PMIC
Four Monolithic Synchronous Buck DC/DCs (1A/1A/500mA/500mA). Buck DC/DCs Can Be Paralleled
to Deliver Up to 2× Current with a Single Inductor. Independent 1A Boost and 1A Buck-Boost DC/DCs,
Dual String
I
2
C Controlled 40V LED Driver. I
2
C Programmable Output Voltage, Operating Mode, and
Switch Node Slew Rate for All DC/DCs. I
2
C Read Back of DC/DC, LED Driver, Fault Status, Pushbutton
On/Off/Reset, Always-On 25mA LDO. Low Quiescent Current: 16µA (All DC/DCs Off), 4mm × 7mm ×
0.75mm 44-Lead QFN Package.
LTC3375 8-Channel Programmable
Configurable 1A DC/DC
8 × 1
A Synchronous Buck Regulators. Can Connect Up to Four Power Stages in Parallel to Make
a Single Inductor, High Current Output (4A Maximum), 15 Output Configurations Possible,
7mm×7mm QFN-48 Package
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC3374
LTC3374
EXPOSED PAD
V
IN1
10µF
V
IN8
FB8
V
IN6
FB6
V
IN5
V
IN4
V
IN7
V
IN2
FB2
10µF
10µF 10µF
1µH
1µH
10µF
10µF
47µF
SW7
SW8
SW5
SW6
FB5
RT
FB7
V
IN3
FB3
FB1
SW1
SW2
SW3
10µF
10µF
68µF
47µF
1.02M
324k
1µH
1.02M
475k
267k
3374 TA02
649k
432k
1µH
FB4
V
CC
PGOOD_ALL
TEMP
SYNC
MODE
EN1
EN4
EN5
EN7
EN2
EN3
EN6
EN8
SW4
22µF
10µF
MICROPROCESSOR
CONTROL
2.7V TO 5.5V
2.25V TO 5.5V
2.25V TO 5.5V 3.3V TO 5.5V
2.5V TO 5.5V
3.3V
2A
2.5V
2A
1.2V
1A
2V
3A
324k
649k
Combined Bucks with 3MHz Switch Frequency and Sequenced Power Up
