S-817B27AY-Z2-U

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The S-817B27AY-Z2-U is a three-terminal adjustable output voltage regulator with low voltage drop operation and excellent current limiting capability. It provides adjustable voltage (1.25V to 33V) and current (0.5A to 3A) controls for a range of industrial, broadcasting and consumer applications. This device is part of the PanJit International Corporation\'s (PanJit\'s) Linear Voltage Regulator (LVR) product family.

The S-817B27AY-Z2-U is a step-down voltage regulator that uses an internal FET power switch and an internal voltage reference. It provides precise, adjustable output voltage and an accurate current limit. The device can be used in applications that require a steady output voltage despite changing input and output current demands. Output voltage is adjustable between +1.25V and +33V. The adjustable current limit is 0.5A to 3A.

The device has two operating modes; voltage or current limit. In voltage limit mode, the device will maintain the output voltage within the specified limits. When the output voltage exceeds the specified value, the device will enter current limit mode. In current limit mode, the device will maintain the output current within the specified limits and reduce the output voltage automatically as necessary.

The S-817B27AY-Z2-U is designed to operate within an extended temperature range of -40°C to 125°C. It supports both PWM and pulse-width modulation (PWM) control mode. The device also provides protection against over-temperature and over-current, and includes a built-in soft-start circuit.

Other features of the S-817B27AY-Z2-U include low start-up current, low external parts count, low drop-out voltage, output current limit status flag, short circuit protection, programmable shutdown delay time, switching frequency synchronization, external feedback voltage trim and adjustable output voltage.

The S-817B27AY-Z2-U is ideal for use in battery chargers, DC-DC converters, PC motherboards, portable product battery power management, remote power control and other applications with adjustable output current and voltage requirements.

Features & Benefits

Flexible

The adjustable output voltage (1.25V to 33V) and current (0.5A to 3A) control are suitable for many industrial, broadcasting and consumer applications.

Reliable

The device is designed to operate in an extended temperature range of -40°C to 125°C. The S-817B27AY-Z2-U also provides protection against over-temperature and over-current, and includes a built-in soft-start circuit.

Low System Cost

The device provides low drop-out voltage, low start-up current, low external parts count, low external Power requirements and no need for additional components.

Real-Time Protection

The device includes protection against over-temperature, over-current, short circuit, and includes a built-in soft-start circuit.

Applications

The S-817B27AY-Z2-U is ideal for use in:

• Battery chargers
• DC-DC converters
• PC motherboards
• Portable product battery power management
• Remote power control
• Other applications with adjustable output current and voltage requirements

Conclusion

The S-817B27AY-Z2-U is a three-terminal adjustable output voltage regulator that provides precise, adjustable output voltage and an accurate current limit. This device is part of the PanJit International Corporation\'s (PanJit\'s) Linear Voltage Regulator (LVR) product family and is designed to operate within an extended temperature range of -40°C to 125°C. It provides low external parts count, low external power requirements, short circuit protection and adjustable output voltage. It is ideal for use in battery chargers, DC-DC converters, PC motherboards, portable product battery power management, remote power control and other applications with adjustable output current and voltage requirements.

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