S-1132B40-I6T2G

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Linear voltage regulators are a common way of providing precision voltage source for microcontrollers and embedded systems. The S-1132B40-I6T2G device is a low-dropout, low-power voltage regulator that can be used to provide each power rail of a typical microcontroller with a regulated voltage. This device is intended to be used in battery-powered applications where a low power supply solution is desired and can be used as an alternative to basic linear regulators.

Low-Dropout Features

The S-1132B40-I6T2G features a low-dropout operation which can be used to provide a reliable power source for microcontrollers. It can maintain a voltage drop of less than one volt (1V) over the operating temperature range for input voltages up to 8V. This makes it ideal for applications where a low-power source is desired and a large voltage difference between the regulator’s input and output is necessary.

On-off Control and Shutdown Functionality

The S-1132B40-I6T2G also features an on-off control input and a shutdown functionality. The on-off control input can be used to enable or disable the regulator. When enabled, the regulator will regulate the output voltage, and when disabled, the regulator will be effectively turned off, reducing supply current to zero. The shutdown input can be used to place the device in shutdown mode where the regulator will stop regulating and reduce current-draw to a minimum. This reduces power consumption in designs powered by low-power sources and can be used to provide a failsafe mechanism.

Build-in Thermal Protection

The S-1132B40-I6T2G also features a built-in thermal protection to provide over-temperature protection of the device, preventing damage due to excessive temperature in designs where the regulator is used at maximum rated specifications. This feature allows the device to remain stable and reliable over its operating temperature range.

Application Fields

The S-1132B40-I6T2G is developed for applications where low-dropout and low-power solution is desired. It can be used to provide precise voltages to microcontrollers and embedded systems, including but not limited to: portable designs, digital audio, data processing equipment, and other low-power battery-powered applications. The device’s precise voltage regulation, low-dropout operation, on-off control and shutdown functionality, as well as built-in thermal protection make it suitable for a wide range of applications.

Working Principle

The S-1132B40-I6T2G voltage regulator uses a two-stage architecture. The first stage is a p-channel MOSFET that is used as a pass device. When the input voltage rises above the internal threshold, the MOSFET turns on and provides a regulated output voltage. The second stage is an NMOSFET that is used as a current-limit. This part of the architecture ensures that no excessive current will be drawn from the input source. The device features an internal voltage reference that ensures that the output voltage remains precise over time.

The S-1132B40-I6T2G device also features on-off control and shutdown functionality. In on-off control mode, a logic signal is used to enable or disable the regulator, while in shutdown mode, the regulator is disabled and reduces the current consumption to zero. This functionality is useful when a failsafe mechanism is required, or if the device is used in low-power applications.

In addition to its two-stage architecture and control functionality, the S-1132B40-I6T2G also features built-in thermal protection to protect the device from overheating. This protection mechanism ensures that the device does not reach excessive temperatures and is stable and reliable over its operating temperature range.

Conclusion

The S-1132B40-I6T2G device is a low-dropout, low-power voltage regulator that can be used to provide precise voltages to microcontrollers and embedded systems. This device is suitable for a wide range of applications, including portable designs, digital audio, data processing equipment, and other low-power battery-powered applications. The low-dropout operation, on-off control and shutdown functionality, as well as built-in thermal protection make it an ideal solution for designs powered by low-power sources.

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