KA78RH33RTF Integrated Circuits (ICs)

Current - Output:	800mA
Base Part Number:	KA78RH33
Supplier Device Package:	TO-252-3
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	55dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.4V @ 800mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	15V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

KA78RH33RTF Application Field and Working Principle

PMIC or Power Management ICs, are an important and integral part of any electronic system. Voltage regulators, specifically linear voltage regulators, offer the most basic and least expensive power management option. The KA78RH33RTF is a three-terminal adjustable linear voltage regulator that is commonly used for powering small gadgets and micro-controllers. This IC, which was developed by Fairchild Semiconductor, is a high-performance fixed-current & PWM control integrated circuit. It has a wide range of operating input voltages, ranging from 1.3V to 14V. The application field for this device includes power supplies, dc-dc converters, charge pumps, battery-operated systems and more.The KA78RH33RTF offers several benefits over other voltage-regulating components like lower power losses, low noise and stable regulation. It has very low drop-out voltage and is equipped with low-drop-out circuitry, thus offering a stable output voltage even at low input voltage. It also features a precise reference voltage pin and a precise current-limiting circuit with a wide current operating range. It also has a few additional features, like temperature compensation and a P-channel MOSFET output.Now, let\'s look at the KA78RH33RTF working principle. This voltage regulator is designed with an integrated precision voltage reference and a gate-controlled P-channel MOSFET. The MOSFET initiates the voltage regulation process. It monitors the input voltage, compares it to the reference voltage and adjusts the output voltage as necessary. The reference voltage is generated internally by the IC and is adjustable by varying the external feedback resistor connected between the FB and REF pins. When the REF pin is connected to the FB pin, this pin generates a voltage reference signal. This signal will set the output voltage to the specified level. The current-limit signal is generated by the pair of current monitor resistors that are connected to FB, REF and output pins.In conclusion, the KA78RH33RTF is an adjustable linear voltage regulator, designed by Fairchild Semiconductor. It offers many advantages, like low power losses and stable output voltage, even at low input voltages. Its wide range of applications, make it ideal for use with batteries and powering small gadgets or micro-controllers. Finally, the IC is designed with an integrated precision voltage reference and a gate-controlled P-channel MOSFET, which initiates the voltage regulation process.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description