LMZ31520电源-板安装的直流转换器规格书PDF中文资料

LMZ31520属于电源-板安装的直流转换器。由德州仪器制造生产的LMZ31520直流转换器一种旨在将直流电压输入电平改变为一个或多个不同的直流电压输出电平的装置。

1 Features

1• Complete Integrated Power Solution;

Smaller than a Discrete Design

• 15 mm × 16 mm × 5.8 mm Package Size

- Pin Compatible with LMZ31530

• Ultra-Fast Load Step Response

• Efficiencies Up To 96%

• Wide-Output Voltage Adjust

0.6 V to 3.6 V, with 1% Reference Accuracy

• Optional Split Power Rails Allows

Input Voltage Down to 3 V

• Selectable Switching Frequency

(300 kHz to 850 kHz)

• Selectable Slow-Start

• Adjustable Overcurrent Limit

• Power Good Output

• Output Voltage Sequencing

• Over Temperature Protection

• Pre-bias Output Start-up

• Operating Temperature Range: –40°C to 85°C

• Enhanced Thermal Performance: 8.6°C/W

• Meets EN55022 Class A Emissions

- Integrated Shielded Inductor

• Create a Custom Design Using the LMZ31520

With the WEBENCH® Power Designer

2 Applications

• Broadband and Communications Infrastructure

• DSP and FPGA Point of Load Applications

• High Density Power Systems

3 Description

The LMZ31520 power module is an easy-to-use

integrated power solution that combines a 20-A

DC/DC converter with power MOSFETs, a shielded

inductor, and passives into a low profile, QFN

package. This total power solution allows as few as

three external components and eliminates the loop

compensation and magnetics part selection process.

The 15×16×5.8 mm QFN package is easy to solder

onto a printed circuit board and allows a compact

point-of-load design. Achieves greater than 95%

efficiency, has ultra-fast load step response and

excellent power dissipation capability with a thermal

impedance of 8.6°C/W. The LMZ31520 offers the

flexibility and the feature-set of a discrete point-ofload

design and is ideal for powering a wide range of

ICs and systems. Advanced packaging technology

affords a robust and reliable power solution

compatible with standard QFN mounting and testing

techniques.