TPS627451DSSR

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TPS627451DSSR

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規格

Package Tape & Reel (TR)
Series DCS-Control™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Programmable
NumberofOutputs 1
Voltage-Input(Min) 3.3V
Voltage-Input(Max) 10V
Voltage-Output(Min/Fixed) 1.3V
Voltage-Output(Max) 2.8V
Current-Output 300mA
Frequency-Switching Up to 2.5MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 12-WFDFN Exposed Pad

概述

Description

The TPS627451DSSR is a high-efficiency step-down converter designed by Texas Instruments. This DC-DC converter is optimized for low power consumption, making it suitable for battery-operated applications that require a long battery life. It operates with an input voltage range from 2.2V to 5.5V and can output a fixed or adjustable voltage. The device is known for its ultra-low quiescent current, typically around 360 nA, which makes it highly efficient in light-load conditions.
Key features include an automatic transition between PWM and PFM modes to optimize efficiency across various load conditions, as well as an integrated load switch to disconnect the load during shutdown and minimize leakage current. The TPS627451DSSR offers excellent line and load transient response, and its small size (due to the use of tiny inductors and capacitors) allows for compact designs. This makes it an ideal choice for wearable electronics, IoT devices, and other portable applications that demand both space efficiency and extended battery operation.

Features

The TPS627451DSSR is a high-efficiency step-down converter from Texas Instruments. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 2.2V to 5.5V, making it compatible with single-cell Li-Ion batteries and other power sources.
2. Output Voltage: The device can deliver a fixed output voltage of 1.2V, suitable for powering microcontrollers and RF circuits.
3. Output Current: It supports continuous output currents up to 300 mA, sufficient for various portable applications.
4. Efficiency: With an optimized design, it achieves high efficiency, reaching up to 95%, which helps in minimizing heat generation and extends battery life.
5. Quiescent Current: The TPS627451DSSR has an ultra-low quiescent current of 360 nA, enhancing its suitability for battery-powered applications by reducing power consumption when idle.
6. Automatic Bypass Mode: It includes an automatic bypass mode that can be triggered by a dedicated control pin, allowing the device to bypass the step-down conversion under certain conditions, which is useful for low dropout operation.
7. Package: It is available in a compact WSON package, facilitating space-saving designs.
These features make the TPS627451DSSR an ideal choice for energy-efficient, portable electronic applications.

Package

The TPS627451DSSR is a step-down converter from Texas Instruments, packaged in a 6-pin WSON (DSST) package. This compact package type is designed for efficient power management in space-constrained applications.

Pinout

The TPS627451DSSR is a step-down converter from Texas Instruments, part of the TPS62745 series, designed for low-power applications. It comes in a 6-pin WSON (Wafer-Level Small Outline No-Leads) package. The pin functions are as follows:
1. VIN: Input voltage supply pin where the input voltage range is connected.
2. GND: Ground pin for the return path of input and output currents.
3. SW: Switch pin connected to the inductor, serving as the output of the power switch.
4. VOUT: Output voltage pin where the regulated output voltage is available.
5. EN: Enable pin used to enable or disable the converter; it can be used to put the device into a low-power shutdown mode.
6. VSEL: Voltage select pin allowing the selection of different output voltages.
This configuration supports efficient power regulation in compact applications, optimizing battery life by providing a high-efficiency solution in portable and wearable devices.

Manufacturer

The TPS627451DSSR is manufactured by Texas Instruments Incorporated. Texas Instruments, commonly referred to as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. These components are widely used in electronics, including applications related to industrial, automotive, personal electronics, communications equipment, and more. TI is known for its innovation and extensive portfolio of analog and embedded processing products, serving a broad range of industries and sectors globally.

Application

The TPS627451DSSR is a high-efficiency, low-power step-down converter designed for battery-powered applications. Its primary application areas include wearable devices, medical instruments, wireless sensors, and IoT devices. It is ideal for projects requiring extended battery life due to its ultra-low quiescent current and efficient power management.

Equivalent

The TPS627451DSSR is a step-down converter from Texas Instruments. Equivalent products from other manufacturers could include the RT8010 from Richtek, the LTC3411 from Analog Devices (formerly Linear Technology), and the MCP16301 from Microchip Technology. These equivalents are chosen based on similar input voltage range, output current capability, and functionality. Always verify specific parameters and performance characteristics to ensure compatibility with your application.

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