LT1317BCMS8#LTHB - Linear Technology's Low Noise, Micropower Step-Up DC/DC Converter

The LT1317BCMS8#LTHB is a high-performance step-up DC/DC converter designed by Linear Technology to meet the needs of battery-powered systems requiring a compact and efficient power solution. This device is tailored for applications that demand low noise, micropower consumption, and a wide input voltage range.

Encased in an MSOP-8 package, the LT1317BCMS8#LTHB boasts a minimum input voltage of just 1.8V, making it ideal for single-cell or dual-cell battery-powered applications, including alkaline, NiCd, NiMH, or single-cell Li-Ion batteries. Its ability to operate up to an input voltage of 12V also allows for versatility in higher voltage applications.

The converter features a fixed frequency, current mode PWM architecture that ensures stable and low-noise operation. The switching frequency of 600kHz allows for the use of small surface-mount inductors and capacitors, minimizing the footprint and cost of the overall power supply design. Furthermore, the device offers a high efficiency of up to 87%, which is crucial for extending battery life in portable devices.

With its internal 2A switch, the LT1317BCMS8#LTHB can deliver output voltages up to 34V, and its output current capability is suitable for a wide range of applications, from OLED displays to bias supplies and beyond. Additionally, the device features a low quiescent current of only 110μA, which drops to 18μA in shutdown mode, further conserving battery life when the converter is not in use.

Protection features are integral to the LT1317BCMS8#LTHB, including a low-battery detector that alerts the system when the input voltage falls below a programmable threshold, and a current limit function to protect the device under overload conditions. These features ensure reliable and safe operation under various conditions.

In summary, the LT1317BCMS8#LTHB from Linear Technology is a versatile, high-efficiency step-up DC/DC converter that is a perfect power management solution for portable devices where space is at a premium and battery life is paramount.