Texas Instruments

BQ2057TTSTR  

Battery Chargers

The BQ2057TTSTR is a high-precision, low-dropout linear regulator designed by Texas Instruments. It is a member of the I2C controlled, synchronous buck-boost converter family, which is widely used in battery-powered applications.

Description:

The BQ2057TTSTR is a compact, surface-mount integrated circuit (IC) that provides efficient power management for a variety of applications. It features a synchronous buck-boost converter topology, which allows it to step up, step down, or maintain a constant output voltage, depending on the input voltage and load requirements.

Features:

1. I2C programmable: The BQ2057TTSTR can be easily controlled and monitored through the I2C communication protocol, allowing for flexible configuration and integration into various systems.
2. Synchronous buck-boost converter: The device can efficiently manage power by stepping up, stepping down, or maintaining a constant output voltage, making it suitable for a wide range of input voltages and load conditions.
3. Low dropout voltage: The BQ2057TTSTR has a low dropout voltage, which means it can maintain a stable output voltage even when the input voltage is close to the output voltage.
4. High efficiency: The device offers high efficiency (up to 93%) across a wide range of input and output voltages, minimizing power loss and improving overall system performance.
5. Wide input voltage range: The BQ2057TTSTR can handle input voltages from 2.5V to 5.5V, making it suitable for various battery chemistries and power sources.
6. Integrated protection features: The device includes over-current, over-temperature, and short-circuit protection to ensure safe and reliable operation.
7. Small form factor: The BQ2057TTSTR is available in a compact 16-pin TSSOP package, making it suitable for space-constrained applications.

Applications:

1. Portable electronic devices: The BQ2057TTSTR is ideal for use in smartphones, tablets, and other portable devices that require efficient power management and a small form factor.
2. Wearable devices: Due to its compact size and efficient power management capabilities, the BQ2057TTSTR is well-suited for wearable devices such as smartwatches and fitness trackers.
3. IoT devices: The device's I2C programmability and efficient power management make it suitable for Internet of Things (IoT) devices, where power consumption and size are critical factors.
4. Medical devices: The BQ2057TTSTR can be used in battery-powered medical devices, such as portable monitoring equipment and wearable health monitors, to ensure reliable and efficient power management.
5. Wireless communication devices: The device's ability to handle a wide range of input voltages and its efficient power management make it suitable for wireless communication devices, such as routers, access points, and Bluetooth devices.

In summary, the BQ2057TTSTR is a versatile, high-efficiency, and compact linear regulator that can be used in a variety of applications requiring efficient power management and a small form factor. Its I2C programmability and integrated protection features make it an attractive choice for designers looking to optimize their power management solutions.

BQ2057TTSTR Documents

Download datasheets and manufacturer documentation for BQ2057TTSTR

Datasheets :

BQ2057, BQ2057x      

PCN Obsolescence/ EOL :

DK OBS NOTICE      

HTML Datasheet :

BQ2057(C,T,W)      

PCN Design/Specification :

Mult Dev Marking Chgs 16/Mar/2023       Design 22/Feb/2022