SM72501/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range

Package: SOP-8 (Small Outline Package)

Essence: SM72501/NOPB is a power management IC designed to efficiently regulate and control power in various electronic devices.

Packaging/Quantity: Available in reels of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V - 40V
• Output Voltage Range: 1.2V - 37V
• Output Current: Up to 3A
• Switching Frequency: 500kHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SM72501/NOPB IC has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin to control the IC's operation
5. SW: Switching pin for power conversion
6. COMP: Compensation pin for stability control
7. SS/TR: Soft-start/Tracking pin for smooth startup and tracking
8. VOUT: Output voltage pin

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• High efficiency ensures minimal power loss during conversion.
• Low power consumption enhances energy efficiency.
• Compact size enables integration into space-constrained designs.
• Built-in protection features such as overcurrent and thermal shutdown ensure safe operation.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power wastage. - Wide input voltage range provides flexibility in power source selection. - Compact size allows for versatile integration in different applications. - Built-in protection features enhance reliability and safety.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Requires external components for proper operation, increasing complexity.

Working Principles

The SM72501/NOPB operates as a step-down (buck) converter. It regulates the input voltage to a lower, stable output voltage using pulse-width modulation (PWM) techniques. The IC controls the switching of the power MOSFET to efficiently convert the input power into the desired output voltage. Feedback mechanisms ensure accurate regulation, while protection circuits safeguard against faults and abnormal conditions.

Detailed Application Field Plans

The SM72501/NOPB is widely used in various applications, including but not limited to: 1. Power supplies for industrial equipment 2. Automotive electronics 3. LED lighting systems 4. Battery charging circuits 5. Portable electronic devices

Detailed and Complete Alternative Models

1. SM72442/NOPB: Similar functionality with a lower output current capability.
2. SM72603/NOPB: Higher output current capability with additional protection features.
3. SM72345/NOPB: Lower input voltage range but higher efficiency.

These alternative models offer different specifications and features to cater to specific application requirements.

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