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4A
Features
• 8 Independent Synchronous Bucks
• Master-slave Configurable for up to
4A Output/Rail with 1 Inductor
• 15 Power Stage Configurations
• Independent VIN Supplies for Each
Converter
• Precision Enable Pin Thresholds for
Autonomous Sequencing (or I 2 C
Control)
• On-Chip Die Temp Monitor
• QFN-48 Package
(7mm x 7mm x 0.75mm)
Octo-Buck
VIN
1
2
3
4
5
6
7
8
Outputs Easily Paralleled
4A
4A
VIN
The LTC ® 3375 delivers a new level of design flexibility with its multiconfigurable 8-channel outputs. Up to four channels
can be tied together for up to 4A of output current with a single inductor. 15 unique output rail combinations are possible,
enabling late-stage power level adjustments. Each synchronous DC/DC converter can be powered and controlled independently.
An on-chip die temperature sensor provides real-time thermal data for safe operation. Pushbutton control, power-on reset,
watchdog timer and an I 2 C serial port provide flexible control and high reliability.
Efficiency (%)
1
2
3
4
5
6
7
8
4A
2A
1A
1A
Buck Efficiency vs Load
100
90
80
70
60
50
40
30 Burst Mode
20
10
0
1 10 100 1000
Load Current (mA)
® SINGLE STAGE
DUAL STAGE
TRIPLE STAGE
QUAD STAGE
OPERATION
VIN = 3.3V
VOUT = 1.8V
fOSC = 2MHz
L = 2.2µH
VIN
1
2
3
4
5
6
7
8
•
•
•
•
•
•
1A
1A
2A
Info & Free Samples
www.linear.com/product/LTC3375
1-800-4-LINEAR
www.linear.com/product/LTC3375
1A
1A
1A
1A
, LT, LTC, LTM, Linear Technology, the Linear logo and Burst
Mode are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.