BA17824CP-E2

Current - Output:	1A
Base Part Number:	BA178
Supplier Device Package:	TO-220CP-3
Package / Case:	TO-220-3 Cropped Leads
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Protection Features:	--
Control Features:	--
PSRR:	58dB (120Hz)
Current - Supply (Max):	6mA
Current - Quiescent (Iq):	4.5mA
Series:	--
Voltage Dropout (Max):	2V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	24V
Voltage - Input (Max):	33V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

BA17824CP-E2 is a low dropout linear voltage regulator manufactured by Toshiba, intended for use in applications for which precision control of voltage is needed. It is rated for an output voltage of 3.3V and a maximum output current of 800mA. The typical operating temperature range of the regulator is -40°C to 125°C, it is available in a surface-mountable, 8-pin PSSOP package and Meets the LEED and ROHS standards.

Application Fields

The BA17824CP-E2 is a low dropout voltage regulator that is well-suited for a wide range of applications. It can be used in automotive, industrial and consumer electronics. In particular, it is used as a low-dropout, high-efficiency regulator for powering microcontrollers, sensors and motor driver ICs, as well as providing improved temperature stability and higher efficiency than linear regulators. The BA17824CP-E2 can also be used in low-power logic circuits, such as those found in radios, audio amplifiers and LCD displays. Furthermore, the BA17824CP-E2 can be used as a low-dropout, low-output-voltage regulator to provide low-voltage power for a wide variety of application fields. It is also suitable for applications that require low on-resistance or low dropout sequence. It is well-suited for applications where its extremely small footprint, power saving features, low noise levels and its large temperature range make it attractive.

Working Principle

The BA17824CP-E2 is a P-channel MOSFET-based voltage regulator. It is able to regulate voltages as low as 0.2V with a dropout of approximately 0.15-0.2V. It is capable of running output voltages of 3.3V and can deliver up to 800mA of current. The regulator uses a P-channel MOSFET as the monitoring device, consisting of a fixed-resistor divider network and connected to the base of the transistor. When the input voltage rises to a higher level than the set reference voltage, the output of the voltage regulator is increased accordingly, maintaining the regulated output voltage.The control circuit monitors and adjusts the transistor’s current by using an protection device and voltage feedback comparator. If a fault is sensed, the protection device shuts down the transistor and the output voltage is reduced to its safe limit. At the same time, the circuit monitors the output current and uses an over current protection device to shut down the transistor and reduce the output current if it exceeds the value set by the regulation.The BA17824CP-E2 voltage regulator’s thermal protection feature senses the temperature near the P-channel MOSFET, and reduces the output current if the temperature exceeds the thermal protection limit. This reduces the power dissipation and the risk of damaging the transistor.

Conclusion

The BA17824CP-E2 is a low dropout linear voltage regulator designed to be used in a wide range of applications. It features a P-channel MOSFET-based voltage regulator, monitoring and adjustment of the transistor’s current, as well as over current protection. It has a small package and meets the LEED and ROHS standards. It is suitable for using in microcontrollers, sensors and motor driver ICs, for low-power logic circuits, and for applications that require low on resistance.

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