Overview
The TPS62901RPJR, produced by Texas Instruments, is a high-efficiency, low IQ synchronous step-down DC-DC converter. This device is part of the TPS6290x family, which includes 1-A, 2-A, and 3-A pin-to-pin compatible buck converters. The TPS62901RPJR specifically supports an output current of 1 A and is packaged in a small 1.5 mm x 2 mm QFN package, making it ideal for space-constrained applications.
This converter operates over an input voltage range of 3 V to 17 V and can be configured to output various voltages, such as 3.3 V. It features a selectable switching frequency, auto PFM/PWM mode, and external feedback, which enhance its flexibility and efficiency in various applications.
Key Specifications
| Specification | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| Input Voltage | 3 | 12 | 17 | V | |
| Output Voltage Setpoint | 3.3 | V | |||
| Output Current | 0 | 1 | A | ||
| Switching Frequency | 1 MHz / 2.5 MHz | ||||
| MODE/S-CONF Setting | Auto PFM/PWM, external FB, output discharge disabled | ||||
| Package | 1.5 mm x 2 mm QFN |
Key Features
- High Efficiency: The TPS62901RPJR is designed for high efficiency, making it suitable for applications where power loss needs to be minimized.
- Low IQ: It features a low quiescent current, which is beneficial for battery-powered devices and applications requiring low standby power consumption.
- Selectable Switching Frequency: The device allows for a selectable switching frequency of 1 MHz or 2.5 MHz, providing flexibility in design and noise management.
- Auto PFM/PWM Mode: It operates in auto PFM/PWM mode, which helps in optimizing efficiency across different load conditions.
- External Feedback and Output Discharge: The converter supports external feedback and output discharge configurations, allowing for customized performance settings.
- Small Package Size: The 1.5 mm x 2 mm QFN package makes it ideal for space-constrained designs.
Applications
The TPS62901RPJR is versatile and can be used in a variety of applications, including:
- Industrial and enterprise electronics, such as factory and building automation.
- IP network cameras and industrial PCs.
- Data center switches and servo drives.
- Mobile and embedded computing devices.
- Any application requiring a 12-V input voltage or a 1-4 cell lithium battery pack.
Q & A
- What is the input voltage range of the TPS62901RPJR?
The input voltage range is from 3 V to 17 V.
- What is the maximum output current of the TPS62901RPJR?
The maximum output current is 1 A.
- What are the available switching frequencies for the TPS62901RPJR?
The device can operate at switching frequencies of 1 MHz or 2.5 MHz.
- What is the package size of the TPS62901RPJR?
The device is packaged in a 1.5 mm x 2 mm QFN package.
- Does the TPS62901RPJR support external feedback?
Yes, it supports external feedback configurations.
- What are some typical applications for the TPS62901RPJR?
Typical applications include industrial and enterprise electronics, IP network cameras, industrial PCs, data center switches, and mobile/embedded computing devices.
- How can the switching frequency be configured on the TPS62901RPJR?
The switching frequency can be configured using the MODE/S-CONF resistor (R4).
- Can the output voltage be adjusted on the TPS62901RPJR?
Yes, the output voltage can be adjusted using external resistors and configurations.
- What is the significance of the low IQ feature in the TPS62901RPJR?
The low IQ feature reduces the quiescent current, which is beneficial for battery-powered devices and applications requiring low standby power consumption.
- How can the enable threshold voltage be configured on the TPS62901RPJR?
The enable threshold voltage can be configured by installing resistors R5 and R6 and removing JP1.
