LTC3774EUHE#TRPBF Allicdata Electronics
Allicdata Part #:

LTC3774EUHE#TRPBF-ND

Manufacturer Part#:

LTC3774EUHE#TRPBF

Price: $ 2.60
Product Category:

Integrated Circuits (ICs)

Manufacturer: Linear Technology/Analog Devices
Short Description: IC REG CTRLR BUCK 36QFN
More Detail: Buck Regulator Positive Output Step-Down DC-DC Co...
DataSheet: LTC3774EUHE#TRPBF datasheetLTC3774EUHE#TRPBF Datasheet/PDF
Quantity: 1000
2500 +: $ 2.36478
Stock 1000Can Ship Immediately
$ 2.6
Specifications
Frequency - Switching: 150kHz ~ 1.2MHz
Base Part Number: LTC3774
Supplier Device Package: 36-QFN (5x6)
Package / Case: 36-WFQFN Exposed Pad
Operating Temperature: -40°C ~ 125°C (TJ)
Control Features: Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Serial Interfaces: --
Clock Sync: No
Synchronous Rectifier: No
Duty Cycle (Max): 98%
Series: PolyPhase®
Voltage - Supply (Vcc/Vdd): 4.5 V ~ 38 V
Output Phases: 2
Number of Outputs: 2
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Output Type: PWM Signal
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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The LTC3774EUHE#TRPBF is a highly advanced DC-DC switching regulator controller from the PMIC (Power management IC) series made by Linear Technology. It is a voltage regulator and DC-DC switching controller that combines high-performance analog control with advanced digital power technology. It is designed to reduce heat losses, resist EMI vulnerability, and reduce output ripple.

The LTC3774EUHE#TRPBF supports a wide range of applications and is suitable for use in automotive, factory automation, instrumentation, general-purpose power conversion and other power switch controllers. The device is designed to be compatible with a wide range of input and output voltages, with low minimum input and output voltages as low as 0.8V and 2.5V, respectively. The over current protection circuitry is also designed to provide efficient protection against overwhelming current levels on the input and output sides.

The wide input voltage range of the device is further complemented by a low input quiescent current of nearly 1μA. The programmable output voltage range of the LTC3774EUHE#TRPBF is from 0.8V to 6.5V, and the output current ranges from 0.0001A to 15A. The device also has a programmable thermal-foldback compensation point and an onboard voltage reference.

The LTC3774EUHE#TRPBF is equipped with a load pre-bias feature, which allows the device to start up and operate even if the output voltage is greater than the input voltage. This allows the device to support a wide variety of applications and helps ensure the reliability of the system.

The working principle of the LTC3774EUHE#TRPBF is based on the Buck switching regulator. Upon receiving a valid input voltage, a high-frequency pulse-width modulation (PWM) signal is generated by the controller’s internal oscillator. This PWM signal is then used to drive a high side power switch and a low side power switch. As the output voltage is lowered, the low side switch is turned off and the high side switch is turned on. This regulated the current flow and helps to adjust the output voltage.

In addition to voltage regulation, the LTC3774EUHE#TRPBF also offers a variety of power management features. These include input over-voltage, low quiescent current, programmable soft-start, output current limit, and thermal-foldback. Input over-voltage protection prevents the input voltage from exceeding the maximum rated voltage, while low quiescent current protection helps ensure that the device is not overloaded. Programmable soft-start prevents sudden large current surges, while output current limit protects the device from possible short-circuit scenarios. Finally, thermal foldback helps prevent overheating in high ambient air temperature scenarios by reducing the output current.

The LTC3774EUHE#TRPBF is a high performance single-axis DC-DC switching regulator controller from the PMIC (Power management IC) family and is suitable for a wide range of power conversion applications. It features a wide input voltage range, low quiescent current, and a number of advanced power management features that enable it to provide efficient and reliable power and voltage regulation.

The specific data is subject to PDF, and the above content is for reference

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