MIC2545A-1BTS-TR

Voltage - Supply (Vcc/Vdd):	Not Required
Base Part Number:	MIC2545A
Supplier Device Package:	14-TSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Fault Protection:	Current Limiting (Adjustable), Over Temperature, Reverse Current
Features:	Slew Rate Controlled, Status Flag
Input Type:	Non-Inverting
Rds On (Typ):	35 mOhm
Current - Output (Max):	3A
Series:	--
Voltage - Load:	2.7 V ~ 5.5 V
Interface:	On/Off
Output Type:	N-Channel
Output Configuration:	High Side
Ratio - Input:Output:	1:1
Number of Outputs:	1
Switch Type:	USB Switch
Part Status:	Discontinued at Digi-Key
Packaging:	Tape & Reel (TR)

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MIC2545A-1BTS-TR application field and working principle

The MIC2545A-1BTS-TR is part of a family of power distribution switches and load drivers from Micrel. It is an ultra-low-power voltage regulator for applications using the latest technologies, such as Li-Ion, supercapacitors and thin-film batteries. This IC is designed to integrate into a wide range of applications such as smart meters, medical and automotive.The MIC2545A-1BTS-TR can support up to 16 V input voltage, and the load capacitance up to 22 µF. It is designed with an internal current limit and thermal shutdown. This voltage regulator provides an over-temperature protection function to prevent the device from reaching hazardous conditions.The MIC2545A-1BTS-TR is a dual-channel high-side power distribution switch and is capable of providing both regulated and non-regulated output voltages through its main and auxiliary outputs. The main output supplies up to 4A of regulated output current, while the auxiliary output supplies up to 1A of unregulated and amplified power. The output voltage can be adjusted from 2.5V to 12V by selecting the appropriate voltage range on two select pins.The MIC2545A-1BTS-TR uses an external resistive load to control the output current. It includes an integrated high-side current sense amplifier, which is capable of sensing the voltage drop across the load. The device also includes integrated over-current protection, which will shut down the device when an over-temperature condition is detected.The MIC2545A-1BTS-TR includes an additional shutdown pin, which can be used to control the output power by disabling the device during normal operation. The device is capable of operating with a wide input voltage range from 2.2V to 17V and can be used in applications where the input voltage is higher than the output voltage.In conclusion, the MIC2545A-1BTS-TR is a powerful and versatile voltage regulator designed for a wide range of applications. It is capable of providing both regulated and unregulated output voltages, and its integrated features provide protection from excessive load current and temperature. This IC is designed for high-power applications, making it an excellent choice for those requiring a reliable and efficient power solution.

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