Allicdata Part #: | 296-26168-5-ND |
Manufacturer Part#: |
MC33063AD |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG BUCK BOOST INV ADJ 8SOIC |
More Detail: | Buck, Boost Switching Regulator IC Positive or Neg... |
DataSheet: | MC33063AD Datasheet/PDF |
Quantity: | 3856 |
Voltage - Output (Min/Fixed): | 1.25V |
Base Part Number: | MC33063 |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C (TA) |
Synchronous Rectifier: | No |
Frequency - Switching: | 100kHz |
Current - Output: | 1.5A (Switch) |
Voltage - Output (Max): | 40V (Switch) |
Series: | -- |
Voltage - Input (Max): | 40V |
Voltage - Input (Min): | 3V |
Number of Outputs: | 1 |
Output Type: | Adjustable |
Topology: | Buck, Boost |
Output Configuration: | Positive or Negative |
Function: | Step-Up, Step-Down |
Part Status: | Active |
Packaging: | Tube |
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The MC33063AD is a monolithic integrated circuit consisting of a switch, zero-voltage switch, and a controller. It is a step-up/step-down device commonly used as a peripheral power supply switch in a variety of applications, such as controlling power to small DC motors, providing a regulated output voltage from a varying input voltage, and providing reliable and consistent source of power for microcontrollers, to name a few.
The MC33063AD is a synchronous, three-terminal, DC-to-DC switching regulator, specifically designed for microprocessor, microcontroller and logic applications. It is a high-performance device, using current-mode control Concept, providing excellent line and load regulation.
The voltage regulator\'s main features include low current start up of 15 uA with maximum operating current of 1 A, operating input voltage range of 3 V to 16 V, switching frequency of 500 KHz, three selectable operating modes (disc-mode, PWM-mode, and switching-mode), built-in programmable under-voltage lock-out (UVC) circuit, thermal shut down (TSD) circuit, short circuit protection (SCP) circuit, and an external shutdown pin (SD), among other features.
An advantage of the MC33063AD circuit is that when driven properly, it provides very good efficiency at full load conditions. It also provides very low switching frequency noise, as well as very high input ripple rejection. It has a wide input voltage range, allowing it to be suitable for a variety of supply voltages and is also relatively easy to use due to its simple pin count and connection scheme.
The application field for the MC33063AD is broad and can be used to design efficient power supplies for a variety of formats, from sample and hold circuits and switching dc-dc converters to logic power supplies and audio amplifiers. The MC33063AD is also found in portable electronics, such as PDAs and cell phones, as well as medical equipment, automotive systems and consumer electronics.
The working principle of the MC33063AD is based on the current mode control concept. It consists of a controller, a switch and a zero voltage switch, which are connected in a closed loop. First, the controller senses the output voltage and modulates its own internal power reference in order to control the output voltage. The switch passes the current through its internal resistor in order to regulate the output voltage. The zero voltage switch monitors the power supply voltage and disconnects the switching circuit when the voltage reaches the lower level. This ensures that the output current remains positive and keeps the output voltage regulated.
The MC33063AD is a reliable and efficient voltage regulator with good current spreading capability. Its wide operating voltage range, low power consumption, and high efficiency makes it an attractive solution for power management applications. Its integrated features, such as built-in UVC, SCP and TSD circuits, provide added benefits for the system ensuring safe operation and protection of the components. Its simple pin count and connection scheme also makes designing the circuit easy and efficient.
The specific data is subject to PDF, and the above content is for reference
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