LT3513IUHF#PBF Integrated Circuits (ICs)

The LT3513IUHF#PBF is a special purpose, highly integrated voltage regulator and one of the popular power management ICs (PMIC). Designed for space-saving, low-power systems, this integrated device combines the functions of switching regulator, linear regulator, boost regulator and power monitoring into a single 8-pin package. With its adjustable output voltage range from 0.6V to 5.5V and its 2A and 4A current limit, the LT3513IUHF#PBF is ideal for a wide range of applications.

Features and Advantages

• Wide VIN Operating Range: 2.7V to 10V
• Adjustable Output Voltage Range: 0.6V to 5.5V
• 2A/4A Current Limit Output Voltage
• Wide Load Regulation Range
• OVP and UVLO Protection
• Compact 8-Pin Package
• Low Output Noise
• High Efficiency with Low EMI Emissions

Application Fields

The LT3513IUHF#PBF offers a wide range of features and advantages, making it suitable for a variety of applications including but not limited to: portable devices, smart meters, automotive audio systems, telecom systems, industrial automation and office equipment. Due to its low current limit output voltages (2A, 4A) and wide load regulation range, the LT3513IUHF#PBF can replace several traditional charge pumps and linear regulators. It is also an ideal solution for low-power systems that require a high level output voltage accuracy.

Operating Principle

The LT3513IUHF#PBF is designed as an integrated, high-efficiency voltage regulator with adjustable output voltage from 0.6V to 5.5V. The principle of operation of this device is based on a combination of switching and linear regulation, as well as power monitoring. A wide range of input voltage (2.7V to 10V) allows for high flexibility and makes the device suitable for use in different types of applications. The device is set up to regulate the output voltage by comparing it with a reference voltage generated from its internal bandgap voltage reference. If the output voltage drops below the set-point, the device switches on the external MOSFET and provides a regulated voltage at the output. If the output voltage exceeds the set-point, the MOSFET is switched off and the device enters a low-power sleep mode.

In addition to its adjustable output voltage, the LT3513IUHF#PBF features wide load regulation range, over-voltage protection (OVP) and under-voltage lock-out (UVLO). The device also offers a low output noise, high-efficiency and low EMI emissions. All these features make the LT3513IUHF#PBF an ideal choice for applications requiring low-power and space-savings.