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The LTC®3562 is a quad high efficiency monolithic synchronous step-down regulator with an I2C interface. Two regulators are externally adjustable and can have their feedback voltages programmed between 425mV and 800mV in 25mV steps (Type A). The other two regulators are fixed output regulators whose output voltages can be programmed between 600mV and 3.775V in 25mV steps (Type B). All four regulators operate independently and can be put into pulse skip, LDO, Burst Mode operation, or forced Burst Mode operation through I2C control. The Type-A regulators have separate RUN pins that can be enabled if I2C control is unavailable.
FEATURES
■ Four Independent I2C Controllable Step-Down
Regulators (2 × 600mA, 2 × 400mA)
■ Two I2C Programmable Feedback Voltage
Regulators (R600A, R400A): VFB 425mV to 800mV
■ Two I2C Programmable Output Voltage Regulators
(R600B, R400B): VOUT 600mV to 3.775V
■ Programmable Modes: Pulse Skip, LDO, Burst Mode,®
Forced Burst Mode Operation
■ Quiescent Current < 100μA (All Regulators Enabled
in LDO Mode)
■ Fixed 2.25MHz Switching Frequency (Pulse Skip
Mode)
■ Slew Limiting Reduces Switching Noise
■ Power-On Reset Output for Regulator R600A
■ Small, Thermally Enhanced, 20-Lead 3mm × 3mm
QFN Package
APPLICATIONS
■ Miscellaneous Handheld Applications with Multiple Supply Rails
■ Personal Information Appliances
■ Wireless and DSL Modems
■ Digital Still Cameras
■ MP3 Players
■ Portable Instruments
Specifications
Attribute
Attribute Value
Manufacturer
Analog Devices / Linear Technology
Product Category
DC Switching Regulators
Series
-
Packaging
Tube Alternate Packaging
Package-Case
20-WFQFN Exposed Pad
Operating-Temperature
-40°C ~ 85°C (TA)
Mounting-Type
Surface Mount
Output-Type
Adjustable (Programmable)
Function
Step-Down
Supplier-Device-Package
20-QFN (3x3)
Number-of-Outputs
4 Outputs
Topology
Buck
Frequency-Switching
2.25MHz
Current-Output
400mA, 600mA
Output-Configuration
Positive
Output Voltage
0.425V (0.6V)
Voltage-Output-Max
0.8V (3.78V)
Synchronous-Rectifier
Yes
Voltage-Input-Min
2.7V
Voltage-Input-Max
5.5V
Descriptions
Buck Switching Regulator IC Positive Adjustable (Programmable) 0.425V (0.6V) 4 Output 400mA, 600mA 20-WFQFN Exposed Pad
LTC3562 - I2C Quad Synchronous Step-Down DC/DC Regulator 2 x 600mA, 2 x 400mA
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Distributor/Wholesaler,Trading Company
Year Established:
2005
Total Annual:
1000000-3000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
Our company, founded in 2005, has built long-term partnerships with numerous high-quality suppliers worldwide.
We specialize in providing customers with new and original products. To ensure quality, our technicians rigorously test all products before shipment, offering customers the strongest ass... Our company, founded in 2005, has built long-term partnerships with numerous high-quality suppliers worldwide.
We specialize in providing customers with new and original products. To ensure quality, our technicians rigorously test all products before shipment, offering customers the strongest ass...