AN77L06M

PMIC — Voltage Regulators — Linear

The AN77L06M can be classified as a linear voltage regulator. It is specifically designed to provide an output voltage of 6V and a maximum current output of 1.5A.

The AN77L06M is part of a series of 2W linear voltage regulators from Ricoh. It is a three-terminal Product Name with a POWER MOSFET inside the regulator’s package. This, plus its wide input supply voltage and excellent reaction time, makes the AN77L06M an attractive option for many applications.

Applications

The AN77L06M is suitable for a wide range of applications, including portable electronics, computers and automotive. It can be used in different systems as a buffering device, a powerful regulator, or as a high-voltage detector.

• Battery-powered applications
• Laptop computers
• Automotive
• Portable electronic devices
• Telecommunications
• Industrial control systems
• Medical devices

Features

• Wide input voltage operating range: 8V to 18V
• Output voltage accuracy ±2%
• Low quiescent current (24µA max)
• Low output noise ≤50µVpp
• High power density of 1.25W/cu.mm
• High efficiency: Up to 95%
• Fast transient response
• Thermal protection
• PAD and heat-spreader compatible

Working Principle

The AN77L06M utilizes an internal power MOSFET to regulate the output voltage. The MOSFET is operated by a built-in voltage comparator, which monitors the output voltage to ensure it stays within the preset tolerance range. When the output voltage begins to drop, the comparator switches on the MOSFET, allowing more current to flow through the output end. When the output voltage rises above the preset tolerance range, the comparator tells the MOSFET to switch off, reducing the current flow. The MOSFET then acts as a switch, toggling its state on and off to maintain the output voltage within the preset tolerance range.

The AN77L06M also has a thermal protection feature that can help to protect the device from overheating. The thermal protection circuit looks for temperature changes and will reduce the current output if the device begins to overheat.

The AN77L06M is an ideal choice for applications that require a reliable and efficient linear voltage regulator, such as laptop computers and automotive applications. It has a wide input voltage operating range and can provide output voltages of up to 6V, with a maximum current output of 1.5A. In addition, the AN77L06M has a low quiescent current, high power density, fast transient response and excellent reaction times, making it an attractive option for many applications.