NCP1203D

Current mode PWM controllers for efficient power supply management

Manufacturer: ['onsemi', 'rochester', 'lrc']

series introduction

# Introduction to the NCP1203D Product Series

## 1. Overview
The NCP1203D is a highly versatile and efficient product series designed for power supply applications. It belongs to a class of integrated circuits that play a crucial role in regulating and managing electrical power, ensuring stable and reliable operation of various electronic devices.

## 2. Key Features

### 2.1. High - Efficiency Operation
- The NCP1203D is engineered to achieve high levels of power conversion efficiency. This is particularly important in modern electronic systems where energy conservation is a top priority. By minimizing power losses during the conversion process, it helps to reduce overall power consumption and heat generation. For example, in a typical power supply design, it can convert input power to the desired output power with an efficiency of up to [X]%, which is significantly higher than many competing products in the market.
- This high - efficiency operation also contributes to the longevity of the power supply and the connected electronic components, as less heat means less stress on the materials and a lower risk of component failure.

### 2.2. Integrated Protection Features
- **Over - Current Protection (OCP)**: The NCP1203D is equipped with built - in over - current protection. In case of a sudden increase in the load current beyond a predefined safe limit, the circuit automatically adjusts its operation to prevent damage to the power supply and the connected devices. This feature is essential in applications where short - circuits or abnormal load conditions may occur, such as in industrial control systems or consumer electronics.
- **Over - Voltage Protection (OVP)**: It also offers over - voltage protection. If the output voltage exceeds a certain threshold, the NCP1203D takes corrective action to limit the voltage and safeguard the connected components from potential damage due to excessive voltage. This is crucial for protecting sensitive electronic devices like microcontrollers, sensors, and communication modules.
- **Thermal Shutdown**: To prevent overheating, the NCP1203D has a thermal shutdown feature. When the temperature of the integrated circuit rises above a safe operating level, it automatically shuts down the power supply until the temperature returns to a normal range. This protects the device from thermal damage and ensures reliable long - term operation.

### 2.3. Wide Input Voltage Range
The NCP1203D can accept a wide range of input voltages. This flexibility makes it suitable for use in various power supply designs, whether it is a low - voltage battery - powered application or a high - voltage mains - powered system. For instance, it can operate with an input voltage ranging from [minimum input voltage] to [maximum input voltage], allowing designers to use it in different geographical regions with varying power grid standards or in battery - based portable devices.

### 2.4. Low Standby Power Consumption
In standby mode, the NCP1203D consumes very low power. This is an important feature for applications where the device may be in a standby state for extended periods, such as in smart home appliances or energy - efficient lighting systems. By minimizing standby power consumption, it helps to reduce overall energy costs and meet strict energy efficiency regulations.

## 3. Applications

### 3.1. Consumer Electronics
- **Smartphones and Tablets**: The NCP1203D can be used in the power management circuits of smartphones and tablets. It provides a stable power supply to the battery charging circuit, ensuring fast and safe charging of the device's battery. Additionally, it can regulate the power supply to the various components inside the device, such as the processor, display, and memory, improving the overall performance and reliability of the device.
- **Televisions and Monitors**: In televisions and monitors, the NCP1203D is used to convert the

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Datasheets

Partlist

NCP1203D100R2
NCP1203D100R2G
NCP1203D100R2G/BKN
NCP1203D40R2
NCP1203D40R2G
NCP1203D60R2
NCP1203D60R2G
NCP1203D60R2G/BKN