TPS61040DDCR

Product Overview

Category

The TPS61040DDCR belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators - DC/DC switching regulators.

Use

This product is primarily used for boosting or stepping up the input voltage to a higher output voltage level. It is commonly employed in various electronic devices where a higher voltage is required, such as portable devices, battery-powered systems, and low-power applications.

Characteristics

• Input Voltage Range: 0.9V to 6V
• Output Voltage Range: 1.8V to 6V
• Switching Frequency: Up to 1.2MHz
• Efficiency: Up to 90%
• Package Type: DDC (SOT-23-6)
• Essence: Boost converter with high efficiency and wide input/output voltage range.
• Packaging/Quantity: The TPS61040DDCR is typically available in tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: 0.9V to 6V
• Output Voltage Range: 1.8V to 6V
• Maximum Output Current: 400mA
• Switching Frequency: Up to 1.2MHz
• Operating Temperature Range: -40°C to +85°C
• Shutdown Current: < 1µA
• Quiescent Current: 50µA

Detailed Pin Configuration

The TPS61040DDCR has six pins arranged as follows:

```

---

| | --| VIN SW |-- --| GND FB |-- --| EN VOUT|-- |___________| ```

1. VIN: Input voltage pin.
2. SW: Switching node pin.
3. GND: Ground pin.
4. FB: Feedback voltage pin.
5. EN: Enable pin.
6. VOUT: Output voltage pin.

Functional Features

• Wide input voltage range allows for flexibility in various applications.
• High efficiency conversion enables longer battery life and reduced power consumption.
• Integrated overcurrent protection safeguards the circuit from excessive current flow.
• Soft start feature prevents inrush current during startup, ensuring a smooth power-up sequence.
• Adjustable output voltage through external resistors provides customization options.

Advantages and Disadvantages

Advantages

• Wide input/output voltage range.
• High efficiency.
• Small package size.
• Integrated overcurrent protection.
• Soft start feature.

Disadvantages

• Limited maximum output current (400mA).
• Requires external resistors for output voltage adjustment.

Working Principles

The TPS61040DDCR is a boost converter that utilizes a switching regulator topology to step up the input voltage to a higher output voltage level. It operates by rapidly switching an internal power transistor on and off. During the on state, energy is stored in an inductor, and during the off state, this energy is transferred to the output capacitor, resulting in a higher output voltage.

The feedback voltage (FB) pin monitors the output voltage and adjusts the duty cycle of the internal power transistor to maintain a stable output voltage. The enable (EN) pin controls the operation of the device, allowing it to be turned on or off as required.

Detailed Application Field Plans

The TPS61040DDCR finds application in various fields, including but not limited to: 1. Portable electronic devices such as smartphones, tablets, and portable media players. 2. Battery-powered systems like wireless sensors, wearable devices, and remote controls. 3. Low-power applications such as IoT devices, smart home automation, and embedded systems.

Detailed and Complete Alternative Models

Some alternative models to the TPS61040DDCR include: 1. TPS61041DDCR 2. TPS61042DDCR 3. TPS61043DDCR 4. TPS61044DDCR

These models offer similar functionality and characteristics, with slight variations in input/output voltage ranges, maximum output current, or package types.

In conclusion, the TPS61040DDCR is a versatile boost converter IC that provides efficient voltage boosting capabilities for a wide range of applications. Its compact size, high efficiency, and integrated protection features make it an ideal choice for portable and low-power electronic devices.