| Allicdata Part #: | 576-1714-5-ND |
| Manufacturer Part#: |
MIC2185YM |
| Price: | $ 1.80 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Microchip Technology |
| Short Description: | IC REG CTRLR BUCK 16SOIC |
| More Detail: | Buck Regulator Positive Output Step-Down DC-DC Co... |
| DataSheet: |  MIC2185YM Datasheet/PDF |
| Quantity: | 1000 |
| 144 +: | $ 1.63525 |
Specifications
| Frequency - Switching: | 400kHz |
| Base Part Number: | MIC2185 |
| Supplier Device Package: | 16-SOIC |
| Package / Case: | 16-SOIC (0.154", 3.90mm Width) |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Control Features: | Enable, Frequency Control, Soft Start |
| Serial Interfaces: | -- |
| Clock Sync: | Yes |
| Synchronous Rectifier: | No |
| Duty Cycle (Max): | 100% |
| Series: | -- |
| Voltage - Supply (Vcc/Vdd): | 2.9 V ~ 14 V |
| Output Phases: | 1 |
| Number of Outputs: | 1 |
| Topology: | Buck |
| Output Configuration: | Positive |
| Function: | Step-Down |
| Output Type: | Transistor Driver |
| Part Status: | Active |
| Packaging: | Tube |
Description
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.MIC2185YM: DC DC Switching Controllers
The MIC2185YM is a versatile and high-performance DC DC switch mode controller from Micrel Inc. It is designed to deliver efficient regulation with a high degree of flexibility, as well as wide compatibility with many low power application requirements. The main features of the device include an adjustable switching frequency (from 600KHz to 1.32MHz), high peak current performance levels (up to 2A continuous and 5A peak), an adjustable operating voltage (from 1V to 16V) and an adjustable overcurrent protection limit. The MIC2185YM is well suited for a wide range of applications, such as, DC/DC converters, power inverters, power supplies, and power management ICs.
Application Fields
The MIC2185YM is suitable for a wide range of applications, such as, DC/DC converter or inverter designs requiring adjustable operating voltage, wide input voltage range, high frequency operation, low power consumption and the flexibility to support various voltage Ratings. It can be used in automotive, renewable energy, industrial and consumer applications for many different applications, including motor control, intelligent lighting, motor drives, communication and networking equipment, security, monitors, digital cameras and other similar devices. The device is also used for controlling multiple loads in applications requiring an adjustable operating voltage and high-frequency operation.
Working Principle
The MIC2185YM operates by first converting the input voltage into a PWM signal that can be utilized by the controller. The controller then monitors the internal voltage, current, and temperature feedback signals and produces an adjustable pulse-width-modulated (PWM) output signal in response. This PWM signal is used to control the switch device, which in turn controls the power supplied to the load. The controller also tracks the load current and switches between different operating modes (like pulse-by-pulse overcurrent and constant current modes) to optimize the power delivery and maximize efficiency.
The controller also includes several protection features such as adjustable UVLO (undervoltage protection) for protection against input voltage surges and adjustable overcurrent protection which prevents excessive current delivery and distortion of the PWM input signal.
In summary, the MIC2185YM is an ideal DC DC switch mode controller for applications requiring efficient regulation, wide compatibility and a high degree of flexibility in terms of adjustable operating voltage and adjustable switching frequency. With its high peak current performance levels, adjustable operating voltage, adjustable overcurrent protection and adjustable UVLO, the MIC2185YM makes it easy to design a highly efficient, yet cost effective switching power supply.
The specific data is subject to PDF, and the above content is for reference
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