TPS61040DBVR

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TPS61040DBVR

IC LED DRVR RGLTR PWM SOT23-5

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規格

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Type DC DC Regulator
Topology Step-Up (Boost)
InternalSwitch(s) Yes
NumberofOutputs 1
Voltage-Supply(Min) 1.8V
Voltage-Supply(Max) 6V
Voltage-Output 28V
Current-Output/Channel 350mA (Switch)
Frequency 1MHz
Dimming PWM
Applications Backlight
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case SC-74A, SOT-753

概述

Description

The TPS61040DBVR is a high-efficiency boost converter from Texas Instruments, designed to step up (boost) input voltages to a higher output voltage. It is commonly used in applications where a higher voltage output is required from a lower voltage input, such as battery-powered devices. Key features include:
1. Input Voltage Range: The converter operates with an input voltage typically from 1.8V to 6V, making it suitable for single-cell or multi-cell battery configurations.
2. Output Voltage: The adjustable output can reach up to 28V, which is configured through external resistors.
3. Efficiency: It offers high efficiency, often over 90%, which is crucial for battery-powered applications to extend battery life.
4. Switching Frequency: The device employs a fixed switching frequency of 1.2MHz, which allows for the use of smaller external components and contributes to reduced overall circuit size.
5. Package: It comes in a small SOT-23-6 package, making it ideal for space-constrained applications.
6. Applications: It is used in LED backlighting, LCD bias supply, and portable devices requiring efficient voltage regulation.
Overall, the TPS61040DBVR is valued for its efficiency, versatility, and compact size.

Features

The TPS61040DBVR is a boost converter from Texas Instruments, designed for applications requiring efficient step-up voltage conversion. Key features include:
1. Input Voltage Range: Operates from a 1.8V to 6V input range, making it suitable for battery-powered applications.

2. Output Voltage: Can be programmed with an external resistor divider to achieve up to 28V output.
3. Efficiency: Offers high efficiency up to 90%, optimized for light-load conditions, which is beneficial for low-power applications.
4. Switching Frequency: Operates at a fixed frequency of 1.2MHz, allowing for small external components and compact design.
5. Current Limiting: Features an internal current limit to protect the device under overcurrent conditions.
6. Shutdown Mode: Includes a shutdown pin that reduces the device's quiescent current to less than 1µA.
7. Package: Comes in a small SOT-23-5 package, making it ideal for space-constrained applications.
8. Protection: Incorporates features like thermal shutdown to enhance reliability.
This combination of features makes the TPS61040DBVR suitable for boosting voltages in portable electronics, OLED displays, and other applications requiring compact, efficient power solutions.

Package

The TPS61040DBVR is a boost converter IC from Texas Instruments, available in a SOT-23-6 package. This compact package type is ideal for space-constrained applications, offering efficient power conversion in a small form factor.

Pinout

The TPS61040DBVR is a boost converter IC manufactured by Texas Instruments. It comes in a SOT-23-5 package, which means it has 5 pins. Here’s a brief overview of its pin functions:
1. SW (Pin 1): This is the switch pin. It is the drain of the internal MOSFET switch, and it is connected to the inductor.
2. GND (Pin 2): Ground pin. It serves as the reference point for the device and the rest of the circuit.
3. FB (Pin 3): Feedback pin. It is used to set the output voltage via an external resistor divider network. The voltage at this pin is compared to the internal reference voltage to regulate the output.
4. EN (Pin 4): Enable pin. This pin is used to enable or disable the device. A high input voltage turns the device on, and a low input voltage turns it off.
5. VIN (Pin 5): Input voltage pin. It is connected to the input power supply.
The TPS61040DBVR is designed for low-power applications and is commonly used to generate a higher voltage from a lower voltage source.

Manufacturer

The TPS61040DBVR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers around the world. TI is known for its wide range of products, including analog chips, embedded processors, and digital light processing technology. Founded in 1930 and headquartered in Dallas, Texas, the company is a leader in the semiconductor industry and is recognized for its emphasis on innovation and development in electronics.

Application

The TPS61040DBVR is a boost converter primarily used in applications requiring efficient step-up voltage conversion. Its common application areas include powering white LEDs in mobile devices, driving OLED displays, and providing power for portable audio equipment. It is also suitable for battery-powered devices requiring high efficiency and low quiescent current, such as wearables and IoT gadgets. Additionally, it can be used in sensor modules and various consumer electronics where compact size and high performance are essential.

Equivalent

The TPS61040DBVR is a boost converter IC from Texas Instruments. Equivalent products from other manufacturers include the LT1613 from Analog Devices (formerly Linear Technology), the MIC2288 from Microchip Technology, and the MAX1674 from Maxim Integrated. These alternatives offer similar functionalities, such as DC-DC boost conversion, and can be suitable replacements, although specific parameters like voltage, current limits, and efficiency might differ. Always review datasheets to ensure compatibility with your specific application.

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