The S-1000C43-I4T1G is a CMOS voltage regulator from SII Semiconductor Corporation, designed for low-power applications requiring a stable and accurate output voltage. Its key features include ultra-low current consumption and a compact package, making it ideal for battery-operated devices and portable equipment. This regulator maintains a consistent output voltage even under varying input voltage or load conditions.

Applications:

• Portable medical devices
• Smartwatches and fitness trackers
• Wireless sensors
• Remote controls
• Memory backup circuits

Features:

• Low quiescent current: Extends battery life in portable applications.
• High output voltage accuracy: Provides a stable and reliable power source.
• Small SOT-23-5 package: Enables compact design and efficient board space utilization.
• Built-in overcurrent protection: Safeguards the device and load against short circuits and excessive current draw.
• Thermal shutdown function: Protects the regulator from overheating under extreme operating conditions.

Benefits:

• Prolonged battery runtime: Reduces the need for frequent battery changes or recharging.
• Consistent system performance: Ensures reliable operation even with fluctuating battery voltage.
• Miniaturized product design: Enables the development of smaller and more portable devices.
• Enhanced system robustness: Protects against electrical faults and thermal overload.
• Simplified circuit design: Requires fewer external components, reducing overall system cost.

Additional Details:

The S-1000C43-I4T1G provides a fixed output voltage of 4.3V. It is designed to operate with an input voltage range of approximately 1.7V to 5.5V. The typical quiescent current is very low, typically in the microampere range. The output voltage accuracy is generally within ±1.0%. It is housed in a compact SOT-23-5 package for easy surface mount assembly. The device operates over a temperature range of -40°C to +85°C. Consult the datasheet for detailed specifications including dropout voltage characteristics and transient response performance.