Specifications
| Attribute | Value |
| Package | Bulk |
| ProductStatus | Obsolete |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck-Boost |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.4V |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 2.4V |
| Voltage-Output(Max) | 5.25V |
| Current-Output | 1.2A |
| Frequency-Switching | 1MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 12-WFDFN Exposed Pad |
Overview
Description
The LTC3441EDE is a versatile, high-efficiency, buck-boost DC/DC converter designed by Linear Technology (now part of Analog Devices). It operates efficiently over a wide input voltage range, making it suitable for applications where the input voltage can be above, below, or equal to the output voltage. The device features a synchronous rectification architecture, which enhances efficiency, and offers a programmable switching frequency, allowing designers to optimize performance based on specific application needs.
Key characteristics of the LTC3441EDE include its ability to deliver up to 600mA of output current, low noise operation, and the support for both fixed frequency and Burst Mode operation for improved efficiency at light loads. The converter also includes features such as soft-start, short-circuit protection, and thermal shutdown, ensuring reliable operation across various conditions.
The LTC3441EDE is commonly used in battery-powered devices, portable electronics, and other applications where extending battery life and maintaining stable output voltage are critical. Its compact package and robust functionality make it a popular choice for engineers designing power supply solutions.
Key characteristics of the LTC3441EDE include its ability to deliver up to 600mA of output current, low noise operation, and the support for both fixed frequency and Burst Mode operation for improved efficiency at light loads. The converter also includes features such as soft-start, short-circuit protection, and thermal shutdown, ensuring reliable operation across various conditions.
The LTC3441EDE is commonly used in battery-powered devices, portable electronics, and other applications where extending battery life and maintaining stable output voltage are critical. Its compact package and robust functionality make it a popular choice for engineers designing power supply solutions.
Equivalent
The LTC3441EDE is a high-efficiency, buck-boost DC/DC converter. Equivalent products include the TPS63001 from Texas Instruments, the MAX1703 from Maxim Integrated, and the LM2773 from Texas Instruments. These alternatives offer similar functionality for voltage regulation and efficiency in compact applications. Always ensure to check the specific requirements and compatibility of your application when selecting an equivalent part.
Features
The LTC3441EDE is a high-efficiency, monolithic, synchronous buck-boost DC/DC converter. It is designed to deliver a regulated output voltage from input voltages above, below, or equal to the output voltage. Key features of the LTC3441EDE include:
1. Wide Input Voltage Range: It supports input voltages from 2.5V to 5.5V.
2. Adjustable Output Voltage: The device can be programmed for output voltages ranging from 2.4V to 5.25V.
3. High Efficiency: The synchronous rectification provides up to 94% efficiency, enhancing battery life in portable applications.
4. Low Quiescent Current: Offers a low quiescent current of 25µA, conserving energy in standby modes.
5. Seamless Transitions: It provides smooth transitions between buck and boost modes.
6. Current Mode Control: Ensures fast transient response and stability over various load conditions.
7. Compact Size: The device comes in a compact 12-lead DFN package, suitable for space-constrained designs.
8. Integrated Features: Includes safety features like short-circuit protection, thermal shutdown, and soft-start.
These features make the LTC3441EDE ideal for portable devices that require efficient power management.
1. Wide Input Voltage Range: It supports input voltages from 2.5V to 5.5V.
2. Adjustable Output Voltage: The device can be programmed for output voltages ranging from 2.4V to 5.25V.
3. High Efficiency: The synchronous rectification provides up to 94% efficiency, enhancing battery life in portable applications.
4. Low Quiescent Current: Offers a low quiescent current of 25µA, conserving energy in standby modes.
5. Seamless Transitions: It provides smooth transitions between buck and boost modes.
6. Current Mode Control: Ensures fast transient response and stability over various load conditions.
7. Compact Size: The device comes in a compact 12-lead DFN package, suitable for space-constrained designs.
8. Integrated Features: Includes safety features like short-circuit protection, thermal shutdown, and soft-start.
These features make the LTC3441EDE ideal for portable devices that require efficient power management.
Pinout
The LTC3441EDE is a high-efficiency, fixed frequency, buck-boost DC/DC converter. It comes in a 10-lead DFN (Dual Flat No-Lead) package. The pin count for this package is 10 pins.
Here is a brief overview of its functions:
- VIN: Input voltage supply pin.
- GND: Ground connection.
- SW1 and SW2: Switch pins for connecting the inductor.
- VOUT: Output voltage pin.
- FB: Feedback pin, used for setting the output voltage.
- SYNC/MODE: Pin for synchronization to an external clock or selecting the mode of operation (e.g., pulse-skipping or Burst Mode).
- RUN/SS: Allows the converter to be enabled or shut down; can also be used for soft-start functionality.
- PGOOD: Power-good indicator pin.
- VCC: Internal linear regulator output.
The LTC3441EDE is designed to provide a regulated output voltage over a wide range of input voltages, making it suitable for applications involving battery-powered devices.
Here is a brief overview of its functions:
- VIN: Input voltage supply pin.
- GND: Ground connection.
- SW1 and SW2: Switch pins for connecting the inductor.
- VOUT: Output voltage pin.
- FB: Feedback pin, used for setting the output voltage.
- SYNC/MODE: Pin for synchronization to an external clock or selecting the mode of operation (e.g., pulse-skipping or Burst Mode).
- RUN/SS: Allows the converter to be enabled or shut down; can also be used for soft-start functionality.
- PGOOD: Power-good indicator pin.
- VCC: Internal linear regulator output.
The LTC3441EDE is designed to provide a regulated output voltage over a wide range of input voltages, making it suitable for applications involving battery-powered devices.
Manufacturer
The LTC3441EDE is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company known for designing and manufacturing a broad range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company serves various industries including automotive, communications, industrial, and consumer electronics.
Application
The LTC3441EDE is a high-efficiency, buck-boost DC/DC converter, making it suitable for applications requiring a consistent output voltage from a variable input voltage. Key application areas include portable devices, where it helps manage battery life by efficiently converting power in products like smartphones, tablets, and other handheld electronics. It is also useful in battery-powered systems, point-of-load power supplies, and devices requiring stable power output amid varying input conditions. Its compact design and versatility make it apt for wearable technology and embedded systems needing efficient power management solutions.
Package
The LTC3441EDE is packaged in a 10-lead plastic DFN (Dual Flat No-Lead) package.
