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LT1776CN8

Switching Voltage Regulators LT1776 - Wide Input Range, High Efficiency, Step-Down Switching Regulator

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  • Part Number : LT1776CN8

  • Package/Case : PDIP-8

  • Brands : ADI

  • Components Categories : Voltage Regulators - DC DC Switching Regulators

  • Datesheet : LT1776CN8 DataSheet (PDF)

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Overview of LT1776CN8

The LT1776CN8 is a high-performance voltage step-up (boost) DC-DC converter designed for efficient power management in a variety of applications. This integrated circuit (IC) is known for its compact design, high efficiency, and versatility, making it suitable for battery-powered devices, portable electronics, and other applications where efficient voltage boosting is essential.


Pinout


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

  • Vin (Pin 1): Input voltage.
  • SW (Pin 2): Switch node for the internal switch.
  • FB (Pin 3): Feedback pin for output voltage regulation.
  • GND (Pin 4): Ground.
  • LX (Pin 5): Inductor connection for boost operation.
  • SHDN (Pin 6): Shutdown pin for enabling/disabling the converter.
  • PGND (Pin 7): Power ground.
  • Vout (Pin 8): Regulated output voltage.


Circuit Diagram


Incorporate a circuit diagram that illustrates the connections and operation of the LT1776CN8 DC-DC boost converter for a more visual representation.

The circuit diagram above depicts the connections of the LT1776CN8 in a typical boost converter configuration.

Key Features

  • Voltage Step-Up (Boost) Converter: The LT1776CN8 is specifically designed to boost input voltage to a higher, regulated output voltage, making it valuable in applications where a higher voltage level is required.
  • Wide Input Voltage Range: With a wide input voltage range, this DC-DC converter accommodates various input sources, enhancing its flexibility in different power supply scenarios.
  • High Efficiency: The LT1776CN8 is engineered for high efficiency, ensuring minimal power loss during the voltage conversion process, which is crucial for battery-powered and energy-efficient applications.
  • Compact Package (N8): Housed in an N8 package, the LT1776CN8 offers a compact form factor, making it suitable for space-constrained designs and easy integration into electronic systems.

Note: Detailed technical specifications can be found in the LT1776CN8 datasheet.

Application

  • Battery-Powered Devices: Ideal for boosting battery voltage to power electronic devices efficiently.
  • Portable Electronics: Suitable for applications like portable audio devices, sensors, and small displays.
  • LED Drivers: Can be used in LED driver circuits for powering LED backlighting or indicators.
  • Energy Harvesting: Useful in energy harvesting systems where low input voltages need to be boosted for efficient energy utilization.

Functionality


The LT1776CN8 functions as a voltage step-up converter, taking a lower input voltage and boosting it to a higher, regulated output voltage. The feedback mechanism ensures stable and accurate output voltage regulation.


Usage Guide

  • Input Voltage: Connect the Vin pin to the input voltage source.
  • Output Voltage Setting: Adjust the output voltage by configuring the feedback network (FB pin).
  • Shutdown Mode: Use the SHDN pin to enable or disable the converter for power management.


Equivalents


For similar functionalities, consider these alternatives to the LT1776CN8:


LT1300: A voltage step-up converter with similar features and capabilities.
LT1615: Another alternative for boosting low input voltages.


Frequently Asked Questions


Q: What is the efficiency of the LT1776CN8?
A: Refer to the datasheet for efficiency curves under various operating conditions.


Q: Can the LT1776CN8 be used for solar-powered applications?
A: Yes, the LT1776CN8 can be employed in solar-powered systems to boost the low voltage output from solar panels.

Specifications

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

Source Content uid LT1776CN8 Rohs Code No
Part Life Cycle Code Obsolete Ihs Manufacturer ANALOG DEVICES INC
Package Description DIP, Reach Compliance Code not_compliant
ECCN Code EAR99 HTS Code 8542.39.00.01
Samacsys Manufacturer Analog Devices Analog IC - Other Type SWITCHING REGULATOR
Control Mode CURRENT-MODE Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 60 V Input Voltage-Min 7.4 V
Input Voltage-Nom 40 V JESD-30 Code R-PDIP-T8
JESD-609 Code e0 Moisture Sensitivity Level 1
Number of Functions 1 Number of Terminals 8
Output Current-Max 0.7 A Package Body Material PLASTIC/EPOXY
Package Code DIP Package Shape RECTANGULAR
Package Style IN-LINE Qualification Status Not Qualified
Seated Height-Max 3.937 mm Surface Mount NO
Switcher Configuration BUCK Switching Frequency-Max 230 kHz
Terminal Finish TIN LEAD Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm Terminal Position DUAL
Width 7.62 mm Product Category Switching Voltage Regulators
RoHS No&nbsp-RoHS Version Available Output Voltage Adjustable
Output Current 560 mA Input Voltage, Max 40 V
Number of Outputs 1 Output Topology Buck
Package / Case PDIP-8 Mounting Style Through Hole
Switching Frequency 200 kHz Minimum Operating Temperature 0 C
Maximum Operating Temperature + 125 C Series LT1776
Input Voltage, Min 7.4 V Brand Analog Devices
Operating Supply Current 3.2 mA Product Type Switching Voltage Regulators
Subcategory PMIC - Power Management ICs

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