会社ブログについて Texas Instruments TPS563252 Synchronous Buck Converter—The Ideal Choice for Drone Power Supply Design

Texas Instruments TPS563252 Synchronous Buck Converter—The Ideal Choice for Drone Power Supply Design; Mingjiada Has It in Stock

Product Overview

The TPS563252 is a high-performance synchronous buck converter from Texas Instruments (TI) that features a compact 1.6mm × 1.6mm SOT-563 package and delivers a continuous output current of 3A with a minimal board footprint. With an input voltage range of 3V to 17V, an adjustable output voltage range of 0.6V to 10V, and a fixed switching frequency of 1.2MHz, this device is specifically designed for space-constrained applications with stringent efficiency requirements.

Mingjiada Electronics has long specialized in the spot supply of TI power management chips. We currently have ample stock of the TPS563252DRLR and can provide rapid delivery support to customers in the drone, industrial control, and communications equipment sectors.

Key Technical Features

The TPS563252’s core competitiveness stems from several carefully engineered technical features:

High-efficiency power stage integration. The device integrates a 55.0 mΩ high-side MOSFET and a 24.3 mΩ low-side MOSFET, significantly reducing conduction losses and helping to maintain excellent conversion efficiency under high-load conditions.

D-CAP3 Control Mode. The device utilizes TI’s proprietary D-CAP3 control architecture, which provides fast transient response while supporting low-ESR output capacitors without the need for external compensation networks, greatly simplifying power loop design.

Eco-mode for efficient operation at light loads. The TPS563252 automatically enters Eco-mode under light-load conditions, reducing switching losses by lowering the switching frequency, thereby extending battery life during low-power operations such as drone cruising.

Comprehensive protection mechanisms. The device integrates OVP (overvoltage protection), OCP (overcurrent protection), UVLO (undervoltage lockout), OTP (over-temperature protection), and UVP (undervoltage protection) with chopping mode, along with cycle-by-cycle overcurrent protection and an open-drain power-good indicator, providing comprehensive reliability assurance for the system.

Ultra-high duty cycle capability. Supports operation at duty cycles as high as 95%, enabling the device to operate stably even when the input voltage is close to the output voltage.

Wide temperature range. The junction temperature rating ranges from –40°C to 125°C, meeting the demanding environmental requirements of industrial-grade and outdoor applications.

Unique Advantages for UAV Applications

This device is particularly well-suited for drone power supply designs due to the following key factors:

Extreme space savings. Space on drone flight control boards and power distribution boards is extremely valuable. The TPS563252’s SOT-563 package measures just 1.6 mm × 1.6 mm. Combined with an integrated bootstrap capacitor, it enables a single-layer PCB layout, significantly reducing the power supply solution’s board footprint and lowering overall BOM costs.

Miniaturization benefits from a high 1.2 MHz switching frequency. The higher switching frequency allows for the use of inductors and capacitors with lower inductance and smaller physical dimensions, further reducing the power solution’s volume and weight—which is critical for drones.

Balance between light-load efficiency and flight endurance. Current requirements vary greatly across different flight phases, such as hovering and cruising. Eco-mode automatically reduces the switching frequency under light loads, minimizing unnecessary switching losses and directly contributing to extended flight time.

Rapid transient response to dynamic loads. Scenarios such as drone motor speed control and the start/stop of video transmission modules can cause severe load transients. The D-CAP3 control mode ensures that the output voltage quickly stabilizes during sudden load changes, guaranteeing a clean and reliable power supply to the flight control system.

A wide input voltage range accommodates multi-cell batteries. The 3V to 17V input range covers power supply scenarios for 2S to 4S lithium-polymer batteries, adapting to the battery configuration requirements of drones of various specifications.

Typical Applications

In addition to drones, the TPS563252 is also widely used in the following fields:

WLAN/Wi-Fi access points, switches, and routers

Professional audio equipment and security surveillance systems

Digital TVs, set-top boxes, and DVRs

Smart speakers and IoT devices

Key Specifications

Input Voltage Range: 3V – 17V

Output Current: 3A (continuous)

Output Voltage Range: 0.6V – 10V

Switching Frequency: 1.2MHz

Reference Voltage Accuracy: ±1% (25°C) / ±1.5% (full temperature range)

High-Side/Low-Side: MOSFET 55.0mΩ / 24.3mΩ

Quiescent Current: 100µA

Package: SOT-563 (1.6mm × 1.6mm)

Operating junction temperature: –40°C to 125°C

To obtain the latest pricing, inventory levels, or purchase samples of the TPS563252, please contact the Mingjiada Electronics sales team.

Contact Information

Mobile: +86 13410018555

Email: sales@hkmjd.com

Website: www.integrated-ic.com

Address: Rooms 1239–1241, Guoli Building, Zhenzhong Road, Futian District, Shenzhen

Tags: TPS563252DRLR, TPS563252DRL, TPS563252DR, TPS563252D, TPS563252