MIC2185YQS-TR

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Low power consumption - Small form factor - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: QSOP-16

Essence: The MIC2185YQS-TR is a power management integrated circuit designed to efficiently regulate and control power in various electronic devices.

Packaging/Quantity: The MIC2185YQS-TR is typically packaged in reels containing 2500 units.

Specifications

• Input Voltage Range: 4.5V - 75V
• Output Voltage Range: 0.8V - 60V
• Output Current: Up to 3A
• Switching Frequency: 200kHz - 2MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC2185YQS-TR has a QSOP-16 package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. SS/TR: Soft-start/Shutdown control pin
6. EN: Enable pin for turning the device on/off
7. VCC: Supply voltage for internal circuitry
8. PGND: Power ground
9. SW: Switching node for power transfer
10. BST: Boost capacitor connection
11. LX: Inductor connection
12. AGND: Analog ground
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Wide input voltage range allows for compatibility with various power sources.
• High efficiency ensures minimal power loss during operation.
• Overcurrent protection safeguards the device and connected components from excessive current.
• Thermal shutdown protection prevents overheating and damage to the IC.
• Soft-start feature enables gradual power-up, reducing stress on the system.

Advantages

• Compact size and small form factor make it suitable for space-constrained applications.
• High efficiency results in reduced power consumption and longer battery life.
• Wide input voltage range provides flexibility in power source selection.
• Overcurrent and thermal protection enhance system reliability and safety.
• Soft-start feature minimizes inrush current and extends component lifespan.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Higher switching frequencies may introduce electromagnetic interference (EMI) concerns.
• Requires careful consideration of external components for optimal performance.

Working Principles

The MIC2185YQS-TR operates as a step-down (buck) converter, converting a higher input voltage to a lower output voltage. It utilizes pulse-width modulation (PWM) to regulate the output voltage by controlling the duty cycle of the switching transistor. The feedback loop compares the actual output voltage with the desired value and adjusts the duty cycle accordingly. This control mechanism ensures stable and accurate voltage regulation.

Detailed Application Field Plans

The MIC2185YQS-TR is commonly used in various applications, including:

1. Power supplies for industrial equipment
2. Automotive electronics
3. Telecommunications systems
4. Consumer electronics
5. LED lighting
6. Battery-powered devices
7. Distributed power systems

Detailed and Complete Alternative Models

1. MIC2185YQS: Similar to MIC2185YQS-TR but without tape and reel packaging.
2. MIC2185YQSTR: Similar to MIC2185YQS-TR but with a different package (TSSOP-16).
3. MIC2185YQS-TRG: Similar to MIC2185YQS-TR but with a higher operating temperature range (-40°C to +150°C).

These alternative models offer similar functionality and can be considered as substitutes for the MIC2185YQS-TR in specific applications.

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