LD29300P2M15

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	14V
Voltage - Output (Min/Fixed):	1.5V
Voltage - Output (Max):	--
Voltage Dropout (Max):	--
Current - Output:	3A
Current - Quiescent (Iq):	180µA
Current - Supply (Max):	100mA
PSRR:	75dB (120Hz)

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Linear voltage regulators control the output voltage of an electric device by limiting the current supplied to or collected by the device\'s load. The LD29300P2M15 is a linear voltage-regulating integrated circuit. It is designed as a low-voltage and low-voltage/low-power regulator for applications such as cellular phones, digital cameras and battery-powered systems. It offers excellent temperature stability and low dropout voltage.

Features:

• Low voltage dropout current
• Low current consumption
• Low temperature coefficient
• Fixed output voltage accuracy of ±0.3%
• Programmable output voltage accuracy up to ±2.5%
• Lower quiescent current than LD29200
• High start-up accuracy
• Over-temperature and short-circuit protection

Application field:

• Cellular phones
• Digital cameras
• Battery powered systems
• Portable computers
• Notebook computers
• Portable media players
• MP3 players
• Mobile phones
• PDAs
• Digital audio and video products

Working principle:

The LD29300P2M15 linear voltage regulator operates by sensing the difference in voltages between the input and output terminals, regulating the current flow to maintain the output voltage at a constant level. This current flow is regulated by the LM29300P2M15’s two threshold transistors (Q1 and Q2). Upon detecting a drop in the input voltage, the transistors switch on, providing a current path to the output, increasing the output voltage. As the output voltage increases, the threshold transistors decrease their current, slowing the flow of current from the input to the output until it reaches the desired level. At that point, the transistors switch off, curtailing the flow of current and maintaining the output voltage at a constant level. Any excess current is dissipated as heat.

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