S-1335F1C-A4T2U3

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The S-1335F1C-A4T2U3 linear voltage regulator is a precision, adjustable voltage regulator. It provides voltage stabilization, ensures current protection, and maintains clean power for a wide range of applications. It is suitable for designs that require a low dropsout internal linear regulator for low-noise and low-ripple operation.

Features

• Wide input voltage range from 5.0 V to 40 V
• Low dropout voltage
• Precision output voltage adjustable from 0.8 V to 40 V
• High accuracy output voltage: +/-0.25%
• Low quiescent current: 1.2 mA
• Low output voltage noise: 12 µV
• High PSRR: 65 dB
• High ripple rejection: 90 dB
• Requires minimum number of external components
• Lead-free and halogen free
• High reliable double-metal process

Applications

• Battery powered products
• Digital TV receivers
• Embedded system
• Power management applications
• Telecommunication equipment
• Audio and video equipment
• Peripheral devices
• Power supplies
• Portable electronics

Detailed Description

The S-1335F1C-A4T2U3 is a low-voltage, low dropout, adjustable voltage regulator with a precision output voltage adjustable from 0.8 V to 40 V. It utilizes an on-board band gap reference to provide the output voltage and an external PNP transistor to provide current limiting. The device offers excellent line regulation (0.4%), low output voltage noise (12 µV), and a wide input voltage range (5.0 V to 40 V). The output voltage is set by adjusting the external resistor to the reference pin. The device is protected by internal current-limit, short-circuit, and thermal shutdown.

The S-1335F1C-A4T2U3 also features a low quiescent current of 1.2 mA and low ground current. It utilizes a high-efficiency process to ensure a low dropout voltage and a high PSRR (65 dB). In addition, the device provides excellent ripple rejection (90 dB), which allows the design of very quiet power supplies. It also features a double-metal process that provides a high-reliability operation.

Working Principle

The S-1335F1C-A4T2U3 works by using an on-board band gap reference and an external PNP transistor to provide current limiting. A voltage divider is set up by connecting two resistors to the reference pin. When the external transistor is activated, the current flows through the resistors and the output voltage is determined by the ratio of the resistors. The output voltage can be adjusted by altering the value of the external resistors. The device also utilizes an internal voltage reference to keep the output voltage stable.

The device also features a low-voltage, low-dropout, adjustable driver with a precision output voltage adjustable from 0.8 V to 40 V. It uses an on-board band gap reference to provide the output voltage and an external PNP transistor to provide current limiting. The device also features a low quiescent current of 1.2 mA and low ground current. The device is protected from short circuit, over-temperature and over-voltage conditions.

Benefits

The S-1335F1C-A4T2U3 is ideal for battery powered applications or for applications in which the input voltage may vary significantly, such as portable electronics and telecommunication equipment. The device offers excellent line regulation (0.4%), low output voltage noise (12 µV), and a wide input voltage range (5.0 V to 40 V). The device is suitable for designing very quiet power supplies with excellent ripple rejection (90 dB). It also features a high-efficiency process to ensure a low dropout voltage and a high PSRR (65 dB). The device also utilizes a high reliable double-metal process to ensure reliable operation.

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