TPS61061DRBRG4

Product Overview

Category

The TPS61061DRBRG4 belongs to the category of integrated circuits (ICs) and specifically falls under the voltage regulators - switching regulators classification.

Use

This product is primarily used for boosting or stepping up voltage levels in various electronic applications. It provides a regulated output voltage that is higher than the input voltage, making it suitable for powering devices that require higher voltages.

Characteristics

• Input Voltage Range: 1.8V to 6V
• Output Voltage Range: Up to 28V
• Switching Frequency: 1.2MHz
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +85°C
• Package Type: SON-10 (Small Outline No-Lead)
• RoHS Compliant: Yes

Package and Quantity

The TPS61061DRBRG4 is available in a small and compact SON-10 package. It is supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 1.8V to 6V
• Output Voltage Range: Up to 28V
• Maximum Output Current: 500mA
• Switching Frequency: 1.2MHz
• Quiescent Current: 50µA
• Shutdown Current: 0.1µA
• Soft Start Time: 1ms
• Operating Temperature Range: -40°C to +85°C
• Thermal Shutdown Protection: Yes
• Overcurrent Protection: Yes
• Under Voltage Lockout: Yes

Pin Configuration

The TPS61061DRBRG4 has a total of 10 pins, which are assigned specific functions:

1. EN (Enable): Enable pin for turning the device on/off.
2. FB (Feedback): Feedback pin for regulating the output voltage.
3. SW (Switch): Switching node for connecting the inductor and capacitor.
4. GND (Ground): Ground reference for the device.
5. LX (Inductor Connection): Connection point for the external inductor.
6. PGND (Power Ground): Ground reference for the power stage.
7. VOUT (Output Voltage): Output voltage connection.
8. VIN (Input Voltage): Input voltage connection.
9. SS/TR (Soft Start/Tracking): Soft start and tracking control pin.
10. BST (Bootstrap): Bootstrap capacitor connection.

Functional Features

• High efficiency voltage boosting.
• Wide input voltage range.
• Adjustable output voltage.
• Overcurrent protection.
• Thermal shutdown protection.
• Soft start for controlled startup.
• Enable pin for easy on/off control.
• Small form factor package for space-constrained applications.

Advantages and Disadvantages

Advantages

• Efficient voltage boosting capability.
• Wide input voltage range allows for versatile applications.
• Compact package size enables use in space-limited designs.
• Built-in protection features enhance reliability and safety.
• Adjustable output voltage provides flexibility.

Disadvantages

• Limited maximum output current of 500mA.
• Higher switching frequency may introduce additional noise in sensitive applications.
• Requires an external inductor and bootstrap capacitor for operation.

Working Principles

The TPS61061DRBRG4 is a step-up DC-DC converter that utilizes a high-frequency switching technique to boost the input voltage. It operates by storing energy in an inductor during the ON state and releasing it to the output during the OFF state. This process allows for efficient voltage conversion and regulation.

When enabled, the internal control circuitry monitors the feedback voltage and adjusts the duty cycle of the switching transistor to maintain a stable output voltage. The soft start feature ensures a gradual increase in output voltage during startup, preventing excessive inrush current.

The device incorporates overcurrent protection to safeguard against excessive load conditions and thermal shutdown protection to prevent overheating. These features enhance the reliability and longevity of the product.

Detailed Application Field Plans

The TPS61061DRBRG4 finds applications in various electronic devices and systems that require a higher output voltage than the available input voltage. Some potential application fields include:

1. Battery-powered devices: Boosting battery voltage to power display modules, backlighting, or audio amplifiers.
2. Portable medical equipment: Providing higher voltages for ultrasound transducers or LED lighting.
3. Industrial automation: Powering sensors, actuators, or communication modules in remote locations.
4. Automotive electronics: Voltage boosting for automotive displays, infotainment systems, or LED lighting.
5. IoT devices: Enabling efficient power conversion for wireless sensor nodes or smart home devices.

Detailed and Complete Alternative Models

1. TPS61062DRBRG4: Similar to TPS61061DRBRG4 but with a higher maximum output current of 800mA.
2. TPS61063DRBRG4: Step