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LTC3789 Datasheet 4-switch Buck-boost Controller

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC3789.

General Description

The LTC®3789 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 LTC3789 is ideal for automotive, telecom and battery-powered systems.

Key Features

  • n Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT n Programmable Input or Output Current n Wide VIN Range: 4V to 38V n 1% Output Voltage Accuracy: 0.8V < VOUT < 38V n Synchronous Rectification: Up to 98% Efficiency n Current Mode Control n Phase-Lockable Fixed Frequency: 200kHz to 600kHz n No Reverse Current During Start-Up n Power Good Output Voltage Monitor n Internal 5.5V LDO n Quad N-Channel MOSFET Synchronous Drive n VOUT Disconnected from VIN.

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LTC3784 Boost Controller
LTC3786 Synchronous Boost Controller
LTC3707-SYNC 2-Phase Synchronous Step-Down Switching Regulator
LTC3713 Synchronous Buck DC/DC Controller
LTC3714 Step-Down Controller
LTC3717 Step-Down Controller
LTC3717-1 Step-Down Controller
LTC3719 Step-Down Controller
LTC3721-1 Push-Pull PWM Controller
LTC3727LX-1 2-Phase Synchronous Step-Down Switching Regulator

LTC3789 Distributor