LT1913IDD#PBF

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The LT1913 is a family of versatile, DC-DC step-down switching regulators that is especially useful in a variety of portable applications. These devices are true pulse-width-modulated (PWM) switching regulators that come with a comprehensive set of features. The LT1913 offers a variety of output voltages and current ranges, enabling it to be used in a wide variety of applications, such as battery chargers, laptop computers, cellular telephones, and tablet PCs. Additionally, the LT1913 features an advanced overload protection, which helps protect the product from unexpected overloading in an emergency.

The LT1913 is an adjustable switching regulator that operates from a wide input voltage range and is suitable for use with a variety of battery chemistries. Due to its wide input voltage range, it can be used with alkaline, NiCd, NiMH, and lithium-ion batteries. It also offers a wide output voltage range of 0.8V to 5.25V, enabling it to be used in a variety of low voltage applications. The LT1913 also features a low-noise design, making it suitable for use in audio applications.

The LT1913 utilizes a PWM control loop that regulates the output voltage. The voltage is adjusted by altering the duty cycle of the output switch. To determine the output voltage, the LT1913 compares a feedback voltage from the regulated output to an internal reference and adjusts the switch duty cycle accordingly. This allows the output to remain regulated against load and line variations as well as output capacitor aging. Additionally, the LT1913 features an advanced overload protection which helps protect the product from unexpected overloading in an emergency.

The LT1913 is capable of operating in either a continuous or a discontinuous mode, depending on the application. In the continuous mode, the output switch is in a "high-side" configuration with a PWM control loop that continuously adjusts the duty cycle to regulate the output voltage. In the discontinuous mode, the output switch is in a "low-side" configuration with a PWM control loop that adjusts the duty cycle to regulate the output voltage during certain operating conditions.

The LT1913 is an ideal choice for any application requiring a low noise and high efficiency DC-DC step-down switching regulator. It is available in a variety of package styles, including SOIC, TSSOP, and DIP, making it suitable for both through-hole and surface mount applications. Additionally, the LT1913 is both RoHS compliant and halogen-free, making it an eco-friendly option for a variety of applications.

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