LT1946AEMS8E#TRPBF

Voltage - Output (Min/Fixed):	2.45V
Base Part Number:	LT1946
Supplier Device Package:	8-MSOP-EP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	2.7MHz
Current - Output:	1.5A (Switch)
Voltage - Output (Max):	35V
Series:	--
Voltage - Input (Max):	16V
Voltage - Input (Min):	2.45V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LT1946AEMS8E#TRPBF is a DC-DC switching regulator made by Linear Technology Corporation. This device is categorized as a Voltage Regulators and works in the PMIC (Power Management Integrated Circuits) field. It is designed to provide an adjustable output voltage and a high power output load.The LT1946AEMS8E#TRPBF has a number of features that makes it an appealing Voltage Regulator. First, it has a wide input voltage range of 2.37 V to 35 V and a low output voltage of 0.5 V to 18 V. Second, it operates in five different modes - PWM, linear, active discontinuous, burst mode and pulse skip. Third, the device has an adjustable current limit and short-circuit protection. Fourth, it comes with a synchronous rectifier, thermal fold back, precision voltage regulation and fast response time. Finally, it is capable of providing up to 2.25 A output power and is rated for operating temperatures from -40°C to +125°C.The LT1946AEMS8E#TRPBF is ideal for applications such as automotive, computer and industrial electronics, point-of-load (PoL) and distributed power architectures, frequency converters, LED lighting, power adapters and telecom base stations. It is also suitable for a multi-output power conversion, where it can provide multiple outputs with different settings and voltages.The device has a very easy to use control interface, which makes it ideal for applications where precise voltage regulation is needed. The voltage adjust pin can be used to adjust the output voltage from 0.5 V to 18 V and the current limit pin can be used to adjust the current limit from 0.5 A to 2.25 A.The LT1946AEMS8E#TRPBF consists of two main subunits, a power stage and a control stage. The power stage contains an external switch and a synchronous rectifier to reduce energy losses. The control stage consists of a voltage feedback, current sense and thermal protection circuit.The voltage feedback circuit constantly monitors the output voltage, which is compared to an externally adjusted reference voltage. The current sense circuit is used to control the current limit of the external switch and to detect when a short circuit or over-current situation occurrs. The thermal fold-back circuit monitors the die temperature and provides additional protection against overload.The LT1946AEMS8E#TRPBF, with its wide input voltage range, multiple operating modes and adjustable output voltage and current limit, offers designers precise and reliable voltage regulation for applications requiring multiple output supplies. Its combination of precise regulation, efficient power management and integrated safety features makes it an attractive solution for multiple output power conversion.

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