LMZ12003EXT是TI公司的一款非隔离式模块产品，LMZ12003EXT是具有 20V 最大输入电压的 3A SIMPLE SWITCHER 电源模块，用于军事和坚固耐用的应用，本页介绍了LMZ12003EXT的产品说明、应用、特性等，并给出了与LMZ12003EXT相关的TI元器件型号供参考。
LMZ12003EXT - 具有 20V 最大输入电压的 3A SIMPLE SWITCHER 电源模块，用于军事和坚固耐用的应用 - 非隔离式模块 - 电源模块 - TI公司（Texas Instruments，德州仪器）
- Junction Temperature Range –55°C to 125°C
- Integrated Shielded Inductor
- Simple PCB Layout
- Flexible Start-up Sequencing Using External Soft-Start Capacitor and Precision Enable
- Protection Against Inrush Currents and Faults such as Input UVLO and Output Short Circuit
- Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
- Fast Transient Response for FPGAs and ASICs
- Low Output Voltage Ripple
- Pin-to-Pin Compatible With Family Devices:
- LMZ14203EXT/2EXT/1EXT (42-V Maximum 3 A, 2 A, 1 A)
- LMZ14203/2/1 (42-V Maximum 3 A, 2 A, 1 A)
- LMZ12003/2/1 (20-V Maximum 3 A, 2 A, 1 A)
- Fully WEBENCH® Power Designer Enabled
- Electrical Specifications
- 18-W Maximum Total Power Output
- Up to 3-A Output Current
- Input Voltage Range 4.5 V to 20 V
- Output Voltage Range 0.8 V to 6 V
- Efficiency up to 92%
- Performance Benefits
- Low Radiated Emissions and High Radiated Immunity
- Passes Vibration Standard MIL-STD-883 Method 2007.2 Condition A JESD22–B103B Condition 1
- Passes Drop Standard MIL-STD-883 Method 2002.3 Condition B JESD22–B110 Condition B
- Point-of-load Conversions from 5-V and 12-V Input Rail
- Time-Critical Projects
- Space Constrained High Thermal Requirement Applications
- Negative Output Voltage Applications (See AN-2027 SNVA425)
The LMZ12003EXT SIMPLESWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12003EXT is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.
The LMZ12003EXT can accept an input voltage rail between 4.5 V and 20 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ12003EXT only requires three external resistors and four external capacitors to complete the power solution. The LMZ12003EXT is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and the device allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LMZ12003EXT | NDW (7) | 10.16 mm × 9.85 mm |
