S-1335D12-A4T2U3

S-1335D12-A4T2U3 Application Field and Working Principle

The S-1335D12-A4T2U3 is an integrated circuit (IC) voltage regulator designed to provide precise wide-range and ultra-low-noise power supply regulation. It is part of a family of voltage regulators which, while sharing the same architecture, can be used in a range of applications. It is classified within the broader PMIC (Power Management Integrated Circuit) subcategory of voltage regulators, specifically Linear voltage regulators.

General Description

The S-1335D12-A4T2U3 is a three-terminal, low-dropout (LDO) linear regulator with a wide operating range of up to 13V. It features a precise output sense input voltage (VSEN) to eliminate the need for external voltage dividers. The device is capable of providing ultra-low noise and high-accuracy output voltage. The device uses an advanced CMOS process technology for low-power, low-noise operation. It features a low standby current, minimizing battery drain.

Features

• Wide operating range of up to 13V.
• Output sense input voltage (VSEN) eliminates the need for external voltage dividers.
• Low dropout of 800mV at 1A.
• Low noise and high-accuracy.
• Low standby current.
• High efficiency.

Application Examples

The S-1335D12-A4T2U3 is commonly used in a variety of power supply and regulation applications. It is suitable for powering microprocessors and integrated circuits (ICs) that require precise and stable voltage input. It is also used in audio and video systems, automotive, notebooks and handheld applications, point-of-sale (POS) systems, servers and workstations, as well as in process control and communication applications.

Working Principle

The S-1335D12-A4T2U3 is a voltage regulator that acts as a ‘buffer’ between the input device (such as a microprocessor) and the power supply, ensuring that the voltage supplied stays constant even when the input voltage changes. It works by comparing the output voltage to the input voltage and then controlling the transistor (pass element) to adjust the output voltage accordingly.

The device is a three-terminal voltage regulator with an output sense input (VSEN). This pin allows the device to sense the output voltage and adjust the pass element to regulate the output voltage accordingly. The VSEN pin works by comparing the output voltage to a reference voltage (internal or external) and then controlling the pass element until the output voltage is equal to the reference voltage.

The device is capable of providing ultra-low-noise and high-accuracy output voltage. This capability is thanks to its advanced CMOS process technology, which allows for low-power and low-noise operation. It also features a low standby current and high efficiency.