LT3511MPMS#TRPBF

Voltage - Output (Min/Fixed):	--
Base Part Number:	LT3511
Supplier Device Package:	16-MSOP
Package / Case:	16-TFSOP (0.118", 3.00mm Width), 12 Leads
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	40kHz ~ 650kHz
Current - Output:	240mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	100V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	--
Topology:	Flyback
Output Configuration:	Positive or Negative, Isolation Capable
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LT3511MPMS#TRPBF is a fixed frequency, current mode step down DC-DC switching regulator in a 16-lead QFN package. It operates from 5V to 75V input supplies. The device is designed to offer excellent transient response without the need for external loop compensation components. With an internal 250mA N-Channel power switch, the LT3511MPMS#TRPBF easily converts high voltage supplies to low voltage outputs.

Application field

The LT3511MPMS#TRPBF is suitable for many applications, including USB power supply, optical transceiver power supply, telecom power supply, computer power supply, and battery-powered applications. It is useful in providing low dropout outputs with high efficiency. It is also used in automotive and power monitoring applications. With its ability to handle a wide input voltage range, the LT3511MPMS#TRPBF is ideal for wide-range voltage supply applications. Additionally, these regulators are applicable in providing low-noise, precise output voltages up to 5.25 V.

Working Principle

The LT3511MPMS#TRPBF works by controlling an internal N-channel power switch to regulate output voltage. When the switch is off, energy is stored in an inductor and the output voltage is maintained. When the switch is on, energy is released from the inductor and the output voltage is regulated. The operating frequency for the switch can be adjusted with an external resistor and capacitor, or trimmed with the device\'s internal trim pin. This regulator also features an internal soft start circuit to limit inrush current, an adjustable frequency and temperature compensated current limit that ensures safe operation, and a pulse-by-pulse current limit.

Conclusion

The LT3511MPMS#TRPBF is a versatile and powerful DC-DC switching regulator. Its use in a variety of applications and wide input voltage range make the LT3511MPMS#TRPBF ideal for any application requiring high efficiency and low noise performance from a fixed frequency DC-DC switching regulator. With its internal N-channel power switch, current limit, and other features, the LT3511MPMS#TRPBF is one of the most robust and reliable switch mode regulators available.

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