TA48025BF(T6L1,NQ) Integrated Circuits (ICs)

Current - Output:	1A
Base Part Number:	TA48025
Supplier Device Package:	PW-MOLD
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	64dB (120Hz)
Current - Supply (Max):	20mA
Current - Quiescent (Iq):	1.7mA
Series:	--
Voltage Dropout (Max):	0.88V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TA48025BF(T6L1,NQ) Application Field and Working Principle

TA48025BF (T6L1, NQ) is a voltage regulator that belongs to the Linear category of Power Management Integrated Circuit (PMIC). It is a two-terminal shunt linear regulator which provides current regulation with a wide range of output voltages and heatsink temperatures. Output current can be set up to 5 A and the output voltage range is from 0.4 to 8 V. It is designed for ultra-low quiescent current applications and it can be used in systems such as portable devices, mini computers, and other embedded systems where low power consumption is required.The TA48025BF is designed to accurately regulate output current in the event of varying load conditions and a drop in input voltage. Internally, it is composed of an adjustable (resistor adjustable) current source, a reference voltage source, and a feedback loop. The current source provides a current proportional to the output voltage while the reference voltage source sets the threshold response and determines the voltage of the output. The feedback loop tracks the output voltage and adjusts the current source so that the desired output voltage is maintained. When the TA48025BF is connected, it first magnifies the difference between the output voltage and the reference voltage. It then takes the amplified output voltage and adjusts the current sink to keep the desired current established by the user. The structure allows the device to achieve stability by keeping a steady output voltage even with variable load conditions and a decrease in the input voltage. In addition, it contains an output monitor and thermal shutdown circuit that provides protection from over-current and overheating conditions. The output monitor detects the output voltage, and then adjusts the feedback voltage if the voltage exceeds the desired output voltage by more than the specified threshold. The thermal-shutdown circuit monitors the junction temperature which is usually set as the normal operating junction temperature plus a certain margin. If the temperature rises above this value, the device will disconnect the output voltage for safety purposes. In conclusion, the TA48025BF is a linear voltage regulator which provides current regulation with its adjustable current sink, reference voltage source and a feedback loop. It provides superior operating performance in the event of varying load conditions and a decrease in input voltage. It has an output monitor and thermal-shutdown circuit to protect against over-current and overheating conditions. This device is an efficient and reliable choice for ultra-low power consuming systems such as mini computers, portable devices, and other embedded systems.

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