LTC1550LIGN#PBF

Voltage - Output (Min/Fixed):	-1.225V
Base Part Number:	LTC1550
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	900kHz
Current - Output:	20mA
Voltage - Output (Max):	-4.8V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Charge Pump
Output Configuration:	Negative
Function:	Step-Up/Step-Down
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

The LTC1550LIGN#PBF is a PMIC - Voltage Regulators - DC DC Switching Regulators designed by Linear Technology Company (LTC). The LTC1550LIGN#PBF is a non-isolated synchronous step-down DC-DC switching regulator that achieves high-efficiency conversion in tiny footprint. It operates from 4V to 16V input voltage range, and provides up to 2A of continuous output current at a fixed voltage of 3.3V. It also includes integrated FETs, ideal diode, and other features required for a complete switching regulator solution. This article will focus on the application fields, features and working principles of the LTC1550LIGN#PBF.

Application Fields

The LTC1550LIGN#PBF can be used in a wide range of applications. It is suitable to be used in consumer and industrial applications such as communication systems, computer peripherals, portable devices and automotive electronics. The device is specifically designed to deliver high thermal efficiency and excellent line/load regulation over wide input voltage range of 4V to 16V, suitable for industrial, telecom, and automotive applications that requires maximum efficiency while minimizing power losses.

Features

The LTC1550LIGN#PBF is a complete switching regulator solution that delivers low output voltage ripple even at high switching frequency and low output voltage. It also features high switching frequency to maximize efficiency and minimize the size of the external components. Other features include integrated FETs, ideal diode and Total DC Error Amplifiers. The integrated FETs eliminate the need for an external circuit to drive the synchronous FET and reduce overall external component count. The ideal diode circuit reduces voltage drop and the Total DC Error Amplifiers ensure exceptionally tight line and load regulation.

Working Principle

The LTC1550LIGN#PBF operates on a fixed voltage of 3.3V and utilizes a switched-mode power supply (SMPS) topology. The SMPS topology helps to achieve high efficiency at low voltage output and low input voltage range, while keeping switching frequency low and output voltage ripple low.The input voltage is first rectified and filtered. Then it is converted to a lower voltage by passing through an inductor and a synchronous rectifier, resulting in a high current load on the input voltage. The output voltage is then set by determining the ratio between the inductor and the synchronous rectifier.The output voltage of the LTC1550LIGN#PBF is controlled by a feedback loop. The feedback measures the voltage at the output and sends the signal back to the controller, adjusting the ON time of the synchronous rectifier and the inductor to maintain consistent output voltage.

Conclusion

The LTC1550LIGN#PBF is a PMIC - Voltage Regulators - DC DC Switching Regulators designed by Linear Technology Company (LTC). The device is a non-isolated synchronous step-down DC-DC switching regulator that provides up to 2A of continuous output current at a fixed voltage of 3.3V and features high thermal efficiency, excellent line/load regulation, integrated FETs, total DC error amplifiers and ideal diode. It suits a wide range of applications, including consumer and industrial applications such as communication systems, computer peripherals, portable devices and automotive electronics. The LTC1550LIGN#PBF utilizes a switched-mode power supply (SMPS) topology, with a feedback loop measuring the voltage at the output and sending the signal back to the controller, to control the output voltage.

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

Part Number	Manufacturer	Price	Quantity	Description