• packageimg
packageimg

LTC3891EFE#PBF

DC/DC Cntrlr Single-OUT Step Down 900kHz 20-Pin TSSOP EP Tube

Inventory:7,657

  • 90-day after-sales guarantee
  • 365 Days Quality Guarantee
  • Genuine Product Guarantee
  • 7*24 hours service quarantee

Rapid Quote

Submit your quote request for LTC3891EFE#PBF using this form.You can also reach us via email at Email: [email protected], and we will respond within 12 hours.

Overview of LTC3891EFE#PBF

The LTC3891EFE#PBF is a high-performance synchronous buck-boost DC/DC converter IC designed to provide efficient power conversion for a wide range of applications. It features high efficiency, low quiescent current, and a wide input and output voltage range, making it suitable for various power supply designs.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VIN: Input supply voltage
  • LX: Internal switch node
  • FB: Feedback voltage output
  • GND: Ground connection
  • COMP: Compensation pin
  • RT/CLK: Timing resistor/clock synchronization
  • SYNC/MODE: Synchronization/mode selection pin
  • VOUT: Output voltage
  • PGOOD: Power good indicator

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LTC3891EFE#PBF IC for a visual representation.

Key Features

  • Wide Input and Output Voltage Range: Supports a wide VIN range and can boost or buck the output voltage over a wide range, offering versatility in power supply designs.
  • High Efficiency: The LTC3891EFE#PBF provides high conversion efficiency, reducing power dissipation and improving overall system efficiency.
  • Low Quiescent Current: Features low quiescent current for extended battery life and reduced standby power consumption.
  • Programmable Frequency Synchronization: Allows synchronization to an external clock for noise-sensitive applications.
  • Adjustable Soft-Start: Provides flexibility in managing inrush current during start-up sequences.
  • Protection Features: Includes overcurrent, overvoltage, and overtemperature protection for enhanced reliability and safety.

Note: For detailed technical specifications, please refer to the LTC3891EFE#PBF datasheet.

Application

  • Battery-Powered Systems: Ideal for power supply applications in battery-powered devices and portable equipment.
  • Industrial Power Supplies: Suitable for industrial power supply systems requiring efficient voltage regulation.
  • LED Driver: Can be used in LED driver circuits for regulating the LED forward voltage over varying input voltage conditions.

Functionality

The LTC3891EFE#PBF is a versatile synchronous buck-boost DC/DC converter that provides efficient power conversion over a wide input and output voltage range. It is designed to meet the requirements of various power supply applications, offering high efficiency and reliability.

Usage Guide

  • Input Voltage: Connect VIN (Pin 1) to the input power supply voltage within the specified operating range.
  • Output Voltage: Connect VOUT (Pin 8) to the load for regulated output voltage delivery.
  • Synchronization: Use the SYNC/MODE (Pin 7) pin for frequency synchronization or mode selection as per the application requirements.

Frequently Asked Questions

Q: What is the typical efficiency of the LTC3891EFE#PBF?
A: The LTC3891EFE#PBF offers high efficiency, typically above 90%, depending on the input and output voltage conditions.

Q: Is the LTC3891EFE#PBF suitable for automotive applications?
A: Yes, the LTC3891EFE#PBF is suitable for automotive applications and can efficiently regulate power in automotive systems.

Equivalent

For similar functionalities, consider these alternatives to the LTC3891EFE#PBF:

  • LTC3126EDE#PBF: This is a synchronous buck-boost DC/DC converter from Linear Technology, offering similar performance in a different package.
  • LTC3789EUFD#TRPBF: A high-performance synchronous buck-boost converter IC from Analog Devices, providing similar features with advanced performance characteristics.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Switching Voltage Regulators RoHS Details
Output Voltage 800 mV to 24 V Output Current 15 A
Input Voltage, Max 60 V Number of Outputs 1 Output
Topology Buck Package / Case TSSOP-20
Mounting Style SMD/SMT Switching Frequency 900 kHz
Quiescent Current 50 uA Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Series LTC3891
Input Voltage, Min 4 V Brand Analog Devices
Development Kit DC1940A, DC1695B Input Voltage 4 V to 60 V
Load Regulation 0.01 % Operating Supply Current 50 uA
Product Type Switching Voltage Regulators Shutdown Shutdown
Factory Pack Quantity 74 Subcategory PMIC - Power Management ICs
Type Low IQ, 60V Synchronous Step-Down Controller Unit Weight 0.005679 oz

Warranty & Returns

Warranty, Returns, and Additional Information

  • QA & Return Policy ?

    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

  • Shipping and Package ?

    Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.

    Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.

  • Payment ?

    For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.

    If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

packageimg

LTC3891EFE#PBF

DC/DC Cntrlr Single-OUT Step Down 900kHz 20-Pin TSSOP EP Tube

Inventory:

7,657