LTC3370_15 Datasheet, PDF (24/24 Pages) Linear Technology – 4-Channel 8A Configurable Buck DC/DCs

LTC3370
Typical Application
Combined Bucks with 3MHz Switching Frequency and Sequenced Power Up
2.25V TO 5.5V
1.2V
3A
3.3V TO 5.5V
3.3V
1A
MICROPROCESSOR
CONTROL
10µF
10µF
10µF
1µH
68µF _324k
649k
10µF
1µH
22µF 511k
162k
V_CC
V_INA
V_INB
V_INC
SWA
SWB
SWC
FB1
V_INH
V_ING
SWH
SWG
FB4
V_INF
V_IND LTC3370 V_INE
SWD
SWE
SWF
FB2
FB3
C1
V_CC
C2
C3
TEMP
PGOODALL
PLL/MODE
EN1
EN2
EN3
EN4 _{EXPOSED PAD RT}
2.25V TO 5.5V
10µF
10µF
1µH
649k
2V
47µF ^2A
432k
2.5V TO 5.5V
10µF
10µF
1µH
2.5V
665k
47µF
2A
309k
2.7V TO 5.5V
10µF
MICROPROCESSOR
CONTROL
267k
3370 TA05
Related Parts
PART NUMBER DESCRIPTION
LTC3589
8-Output Regulator with Sequencing and I²C
LTC3675
LTC3676
LTC3375
LTC3374
LTC3371
7-Channel Configurable High Power PMIC
8-Channel Power Management Solution for
Application Processor
8-Channel Programmable Configurable
1A DC/DC
4-Channel Configurable DC/DC with 8 × 1A
Power Stages
COMMENTS
Triple I²C 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. I²C and Independent Enable Control Pins, Dynamic Voltage Scaling and
Slew Rate Control. Selectable 2.25MHz or 1.12MHz Switching Frequency, 8µA
Standby Current, 40-Lead (6mm × 6mm × 0.75mm) QFN.
Quad Synchronous Buck Regulators (1A, 1A, 500mA, 500mA). Buck DC/DCs Can be
Paralleled to Deliver Up to 2× Current with a Single Inductor. 1A Boost, 1A Buck-
Boost, 40V LED Driver. 44-Lead (4mm × 7mm × 0.75mm) QFN Package.
Quad Synchronous Buck Regulators (2.5A, 2.5A, 1.5A, 1.5A). Quad LDO Regulators
(300mA, 300mA, 300mA, 25mA). Pushbutton On/Off Control with System Reset.
DDR Solution with VTT and VTTR Reference. 40-Lead (6mm × 6mm × 0.75mm) QFN
Package.
8 × 1A 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, 48-Lead (7mm × 7mm × 0.75mm) QFN Package (LTC3375)
38-Lead (5mm × 7mm × 0.75mm) QFN and TSSOP Packages (LTC3374).
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 RST Monitoring with
Windowed Watchdog Timer (CT Programmable), 38-Lead (5mm × 7mm × 0.75mm)
QFN and TSSOP Packages.
3370f
24 Linear Technology Corporation
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LT 0215 • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2015