LTC3789EGN Integrated Circuit Chip High Efficiency Synchronous 4-Switch Buck-Boost Controller
Product Description
LTC3789EGN is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant-frequency, current mode architecture allows a phase-lockable frequency of up to 600kHz, while an output current feedback loop provides support for battery charging. With a wide 4V to 38V (40V maximum) input and output range and seamless, low noise transitions between operating regions, the LTC3789EGN is ideal for automotive, telecom and battery-powered systems.
Specifications
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Output Type
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Function
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Output Configuration
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Topology
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Number of Outputs
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Output Phases
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Voltage - Supply (Vcc/Vdd)
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Frequency - Switching
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Duty Cycle (Max)
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Synchronous Rectifier
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Clock Sync
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Control Features
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Current Limit, Enable, Frequency Control, Power Good, Soft Start
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Operating Temperature
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Features
Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT
Programmable Input or Output Current
Wide VIN Range: 4V to 38V
1% Output Voltage Accuracy: 0.8V < VOUT < 38V
Synchronous Rectification: Up to 98% Efficiency
Current Mode Control
Phase-Lockable Fixed Frequency: 200kHz to 600kHz
No Reverse Current During Start-Up
Power Good Output Voltage Monitor
Internal 5.5V LDO
Quad N-Channel MOSFET Synchronous Drive
nVOUT Disconnected from VIN During Shutdown
True Soft-Start and VOUT Short Protection, Even in Boost Mode
Applications
Automotive Systems
Distributed DC Power Systems
High Power Battery-Operated Devices
Industrial Control
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FAQ
Q: Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q:Which Certificates do you have?
A:We are ISO 9001:2015 Certified Company and member of ERAI.
Q:Can you support small quantity order or sample?Is the sample free?
A:Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q:How to ship my order? Is it safe?
A:We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q:What about the lead time?
A:We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.
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