NCP1937C61DR2G

Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: SOIC-8

Essence: The NCP1937C61DR2G is a power management IC designed for various applications that require efficient power conversion and regulation.

Packaging/Quantity: The NCP1937C61DR2G is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 55V
• Maximum Output Current: 3A
• Switching Frequency: Up to 1MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1937C61DR2G has the following pin configuration:

```

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| | --| VIN | --| GND | --| FB | --| EN | --| SS/TR | --| COMP | --| VOUT | |___________| ```

Functional Features

1. Wide Input Voltage Range: The NCP1937C61DR2G can handle input voltages ranging from 4.5V to 60V, making it suitable for a wide range of applications.
2. Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to 55V, providing flexibility in power supply design.
3. High Efficiency: The IC offers high efficiency power conversion, minimizing energy loss and maximizing battery life.
4. Overcurrent Protection: The NCP1937C61DR2G incorporates overcurrent protection, safeguarding the circuit and connected devices from excessive current.
5. Thermal Shutdown Protection: In case of excessive temperature, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility in power supply design - High efficiency minimizes energy loss - Overcurrent and thermal shutdown protection enhance safety

Disadvantages: - Limited maximum output current (3A)

Working Principles

The NCP1937C61DR2G operates as a step-down (buck) converter. It converts a higher input voltage to a lower output voltage by controlling the duty cycle of an internal switch. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly to maintain a stable output.

Detailed Application Field Plans

The NCP1937C61DR2G is suitable for various applications, including but not limited to: 1. Industrial equipment power supplies 2. Automotive electronics 3. LED lighting systems 4. Battery-powered devices 5. Telecom infrastructure

Detailed and Complete Alternative Models

1. TPS54332DR - Texas Instruments
2. LT8610ABEMSE#PBF - Analog Devices
3. MAX17503GTL+T - Maxim Integrated
4. MP2307DN-LF-Z - Monolithic Power Systems
5. LM2596S-ADJ/NOPB - Texas Instruments

These alternative models offer similar functionality and can be considered as substitutes for the NCP1937C61DR2G.

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