
Allicdata Part #: | RC1117M33-ND |
Manufacturer Part#: |
RC1117M33 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC REG LINEAR 3.3V 1A TO263-3 |
More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Voltage Dropout (Max): | 1.2V @ 1A |
Base Part Number: | RC1117 |
Supplier Device Package: | TO-263-3 |
Package / Case: | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
Mounting Type: | Surface Mount |
Operating Temperature: | 0°C ~ 125°C |
Protection Features: | Over Current, Over Temperature |
Control Features: | -- |
PSRR: | 72dB (120Hz) |
Current - Output: | 1A |
Series: | -- |
Voltage - Output (Max): | -- |
Voltage - Output (Min/Fixed): | 3.3V |
Voltage - Input (Max): | 7.5V |
Number of Regulators: | 1 |
Output Type: | Fixed |
Output Configuration: | Positive |
Part Status: | Obsolete |
Packaging: | Tube |
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RC1117M33: Application Field and Working Principle
PMIC - Voltage Regulators - Linear – RC1117M33 is a low drop-out (LDO) regulator from Texas Instruments. The device is intended for use in battery-powered applications, where it can provide up to 500mA of output current with maximum efficiency. RC1117M33 features an internal logic to ensure that the output voltage remains stable, even under varying input voltages. The device also supports a wide variety of settings, including voltage settings, current limits, and fault detection.
Application
The RC1117M33 is ideal for use in a variety of battery-powered applications. It is especially suited for portable electronic device applications that require low output currents in order to maintain battery life. It is also suitable for temperature-controlled applications such as temperature measurement, control and humidity control. In addition, it can provide quality voltage outputs for high-end audio systems, such as multimedia headsets and speakers.
Features
RC1117M33 offers a wide range of features, including low output voltages, improved galvanic isolation, adjustable current limits, and fault detection. The built-in logic of the device ensures that the output voltage is always constant, even when the input voltage fluctuates. Additionally, the allowable range for voltage settings is large, with a maximum output voltage of 28V, ensuring flexibility for different system requirements. Moreover, adjustable current limits allow users to optimize load performance and improve system efficiency.
Working Principle
The RC1117M33 is a dual stage regulator, consisting of a linear regulator and a current limiter. The voltage regulator provides feedback control to maintain a steady output voltage. The linear regulator is used to control the steady-state output voltage, while the current limiter amplifies this change, providing protection against excessive current conditions. During normal operation, a feedback loop maintains the output voltage provided to the load, while a current limit protects the device from overload conditions.
The voltage regulator is responsible for maintaining the output voltage. It functions by comparing the output voltage to a reference voltage, or set-point. When the output voltage is higher than the reference, the regulator reduces its output current in order to lower the output voltage. This process is repeated until the output voltage matches the reference. The current limiter amplifies this change, protecting the IC from current overloads.
Conclusion
RC1117M33 offers a highly efficient low drop-out (LDO) regulator, providing up to 500mA of output current. Its wide feature range and adjustable parameters give users the flexibility needed to implement different applications. The built-in logic ensures that the output voltage remains stable, even under varying input voltages. In addition, its adjustable current limits optimize load performance, increasing system efficiency. Overall, RC1117M33 is an excellent choice for a variety of battery-powered applications.
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