The TS1117CW25 is a low dropout (LDO) positive voltage regulator manufactured by Taiwan Semiconductor. It's designed to provide a stable and regulated 2.5V output voltage from a higher input voltage. The 'CW' designates the TO-252 package.

Applications:

• ASIC power supplies
• Microprocessor/Microcontroller core voltage
• Memory modules
• Post regulators for switching power supplies
• Battery-powered devices
• Portable electronics

Features:

• Low Dropout Voltage: Typically 1.2V at 1A output current.
• Fixed Output Voltage: Provides a stable 2.5V output voltage without requiring external resistors.
• Output Current of 1A: Capable of supplying up to 1A of output current.
• Internal Current Limit: Integrated current limiting circuitry protects the regulator from overcurrent conditions.
• Thermal Overload Protection: Shuts down the regulator when the junction temperature exceeds safe limits.
• TO-252 Package: Offers a good balance between thermal performance and board space utilization.

Benefits:

• Stable 2.5V Output: Provides a clean and stable power supply for sensitive electronic components.
• Simplified Design: Fixed output voltage reduces the need for external components and simplifies circuit design.
• Overcurrent and Thermal Protection: Increases system reliability and prevents damage to the regulator and load.
• Efficient Regulation: Low dropout voltage minimizes power loss, extending battery life in portable applications.
• Compact Size: The TO-252 package is well-suited for space-constrained designs.

Additional Details:

The TS1117CW25 is a common choice for powering various digital ICs and memory devices requiring a 2.5V supply. Its low dropout voltage makes it particularly useful in battery-powered applications, where the input voltage may drop close to the output voltage as the battery discharges. The TO-252 package allows for surface mounting, simplifying PCB assembly. The internal protection features ensure reliable operation, even in harsh environments or under abnormal operating conditions. It is frequently implemented downstream of a switching regulator to filter out noise and ripple, ensuring clean power for sensitive loads.

Typical Specifications:

• Output Voltage: 2.5V
• Output Current: 1A (Maximum)
• Dropout Voltage: 1.2V (Typical at 1A)
• Operating Temperature Range: -40°C to +125°C
• Package: TO-252