LMZ14203是TI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，本页介绍了LMZ14203的产品说明、应用、特性等，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 - TI公司（Texas Instruments，德州仪器）
- 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
- 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)
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.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LMZ14203 | TO-PMOD (7) | 10.16 mm × 9.85 mm |
