LTC1148CN-3.3#PBF

Frequency - Switching:	Up to 250kHz
Base Part Number:	LTC1148
Supplier Device Package:	14-PDIP
Package / Case:	14-DIP (0.300", 7.62mm)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Current Limit, Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	3.5 V ~ 20 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to the LTC1148CN-3.3#PBF DC-DC Switching Controller

The LTC1148CN-3.3#PBF (LTC1148) is a monolithic 8-pin DC-DC switching controller IC with a wide voltage range that offers excellent features, low power consumption, and robust operation. This IC is suitable for any applications where cost and efficiency are the primary considerations.

Application Fields

The LTC1148 is well-suited for a wide range of applications, such as a DC-DC step-down converter, a boost converter, and a buck-boost converter. This makes it suitable for applications requiring a regulated output voltage in the range of 1.2V to 3.3V. The IC can also be used in systems with multiple power supplies, such as chargers, portable devices, and automotive systems, due to its ability to detect the system power supply voltage and regulate it to the desired voltage level.Other applications include automotive monitoring systems, industrial measurement systems, power management systems, power over Ethernet (POE) systems, and any other applications where a cost-effective and efficient DC-DC switching converter is needed.

Working Principle

The LTC1148 is an 8-pin monolithic switching DC-DC controller IC with an on-chip step-up and step-down converter. The IC’s low-voltage operation and wide input voltage range allow for operation over a wider range of supply voltages. The LTC1148 can regulate the output voltage from 1.2V to 3.3V depending on the operating mode selected.The operating principle of the LTC1148 is based on the principle of switching regulators, which are designed to efficiently regulate the output voltage of a supply. The IC uses pulse-width modulation (PWM) to control the voltage output. In PWM, the output voltage is controlled by a constant switching frequency, with the duty cycle of the output pulse being varied in order to maintain the desired output voltage. This switching frequency is controlled by an on-chip oscillator with programmable frequency. The IC also includes an internal reference source and precision current source, which ensures that the output voltage is precisely regulated. The LTC1148 also features sophisticated protection features, such as under voltage lockout (UVLO), over voltage protection (OVP), and over-current protection (OCP), to protect the IC and the connected load. These protection features, along with the accurate regulation of the output voltage, make the LTC1148 a robust and safe DC-DC switching controller device.

Conclusion

The LTC1148CN-3.3#PBF is a powerful, cost-effective DC-DC switching controller IC with impressive features and low power consumption. Its wide input voltage range, precision current-source reference, and sophisticated protection features make it suitable for a wide array of applications. The PWM switching frequency and output voltage of this IC can be adjusted to suit the particular application and to achieve high efficiency and the desired performance.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description