LMZ14203 - SIMPLE SWITCHER? 6V 至 42V、3A 电源模块，采用带引线表面贴装 TO 封装

LMZ14203是TI德州仪器公司的一款非隔离式模块产品，LMZ14203是SIMPLE SWITCHER? 6V 至 42V、3A 电源模块，采用带引线表面贴装 TO 封装，本站介绍了LMZ14203的封装应用图解、特点和优点、功能等，并给出了与LMZ14203相关的TI元器件型号供参考。

LMZ14203 - SIMPLE SWITCHER? 6V 至 42V、3A 电源模块，采用带引线表面贴装 TO 封装 - 非隔离式模块 - 电源模块 - 德州仪器

产品特性

Integrated Shielded Inductor
Simple PCB Layout
Flexible Start-Up Sequencing Using External Soft-Start and Precision Enable
Protection Against Inrush Currents and Faults Such as Input UVLO and Output Short Circuit
–40°C to 125°C Junction Temperature Range
Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
Fast Transient Response for Powering FPGAs and ASICs
Low Output Voltage Ripple
Pin-to-Pin Compatible Family:
- LMZ1420x (42 V Maximum 3 A, 2 A, 1 A)
- LMZ1200x (20 V Maximum 3 A, 2 A, 1 A)
Fully Enabled for WEBENCH® Power Designer
Electrical Specifications
- 18-W Maximum Total Output Power
- Up to 3-A Output Current
- Input Voltage Range 6 V to 42 V
- Output Voltage Range 0.8 V to 6 V
- Efficiency up to 90%
Performance Benefits
- Operates at High Ambient Temperature With No Thermal Derating
- High Efficiency Reduces System Heat Generation
- Low Radiated Emissions (Electromagnetic Interference [EMI]) Tested With EN55022 Class B Standard
- Passes 10-V/m Radiated Immunity EMI Test Standard EN61000 4-3

产品应用

Point of Load Conversions From 12-V and 24-V Input Rail
Time-Critical Projects
Space Constrained and High Thermal Requirement Applications
Negative Output Voltage Applications (See AN-2027 SNVA425)

产品说明

The LMZ14203 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution that can drive up to 3-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14203 can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14203 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14203 is a reliable and robust design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, output current limit, and allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

Device Information(1)(2)

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LMZ14203	TO-PMOD (7)	10.16 mm × 9.85 mm

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