TPS621351RGXR

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TPS621351RGXR

IC REG BUCK ADJ 3.5A 11VQFN

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3V
Voltage-Input(Max) 17V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 12V
Current-Output 4A
Frequency-Switching 2.5MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 11-VFQFN

概述

Description

The TPS621351RGXR is a high-efficiency step-down (buck) DC-DC converter designed by Texas Instruments. It is part of the TPS62135 family, which is known for its compact size and high performance in power management applications. This converter supports a wide input voltage range and is typically used to convert higher input voltages to lower output voltages in various electronic applications, such as industrial systems, automotive electronics, and portable devices.
Key features of the TPS621351RGXR include a high efficiency of up to 90%, making it suitable for battery-powered and energy-sensitive applications. It offers a flexible output voltage range, adjustable via external resistors, and supports a maximum output current of 1 A. The device operates at a fixed switching frequency, which helps in reducing output voltage ripple and improving overall system performance. Additionally, it supports various protection features, including overcurrent protection, thermal shutdown, and undervoltage lockout.
The TPS621351RGXR is available in a compact VQFN package, facilitating easy integration into space-constrained designs. Its design allows for a minimal number of external components, simplifying the layout and reducing the overall solution size.

Features

The TPS621351RGXR is a step-down converter from Texas Instruments designed for high efficiency and performance. It features a wide input voltage range from 3 V to 17 V, making it versatile for various applications. The device provides an adjustable output voltage from 0.9 V to 6 V with a maximum output current of 1 A. It is characterized by a high-efficiency rating of up to 90%, which helps in reducing power loss and thermal load, essential for battery-powered applications.
The converter operates with a 2.5 MHz fixed-frequency pulse width modulation (PWM) mode, which minimizes output voltage ripple and enhances transient performance. It also supports pulse frequency modulation (PFM) mode for improved efficiency at light loads. The TPS621351RGXR includes features like short-circuit protection, thermal shutdown, and soft-start to ensure safe and reliable operation. It comes in a compact VQFN package, optimizing space in portable and compact designs. Additionally, the device supports both forced PWM and automatic PFM/PWM modes, allowing flexibility based on application requirements.

Package

The TPS621351RGXR is a DC-DC buck converter from Texas Instruments, and it comes in a VQFN package type, specifically a 2.0 mm x 2.0 mm HotRod VQFN-11 (RGX) package.

Pinout

The TPS621351RGXR is a buck converter from Texas Instruments. It comes in a 16-pin VQFN (very thin quad flat no-lead) package. This device is designed for high-efficiency step-down DC-DC conversion and is suitable for a variety of applications.
Here's a brief overview of its pin functions:
1. SW: Switch pin for the internal power MOSFET.
2. VIN: Input voltage supply.
3. EN: Enable pin to turn the device on or off.
4. MODE/SYNC: Mode selection or synchronization input.
5. VOS: Output voltage sensing.
6. PG: Power good indicator.
7. FB: Feedback input for output voltage regulation.
8. GND: Ground connection.
9. SS/TR: Soft-start or tracking input.
10. PGND: Power ground.
11. COMP: Compensation pin for loop stability.
12. AGND: Analog ground.
13. VINB: Bias supply input.
14. BST: Bootstrap capacitor connection.
15. NC (various): No connection or not internally connected.
These pins facilitate various functions such as power regulation, voltage feedback, and switching, ensuring efficient power management for electronic applications.

Manufacturer

The TPS621351RGXR is manufactured by Texas Instruments (TI), a well-known technology company. Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. Their products are used in various industries, including automotive, industrial, personal electronics, and communications. TI is recognized for its innovation in creating components that are essential for electronics and technology development.

Application

The TPS621351RGXR is a step-down DC-DC converter commonly used in applications requiring efficient power management. Typical areas include industrial automation, telecommunications, and personal electronics, where it provides power supply regulation for microcontrollers, sensors, and other low-power devices. Its small size and high efficiency make it suitable for portable and battery-operated devices, IoT applications, and any system requiring compact power solutions with low noise and ripple.

Equivalent

The TPS621351RGXR is a DC-DC buck converter from Texas Instruments. Equivalent products from other manufacturers that offer similar functionality include:
1. MAX17244 from Maxim Integrated
2. LMR33630 from Texas Instruments
3. LT8609S from Analog Devices
4. MP2459 from Monolithic Power Systems
These alternatives may have variations in specifications such as input voltage range, output current, and efficiency, so it is essential to compare datasheets to ensure compatibility with your specific application.

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