Overview
The LMZ14203TZX-ADJ/NOPB is a SIMPLE SWITCHER™ DC-DC power module manufactured by Texas Instruments. This module is designed as an easy-to-use step-down DC-DC solution, capable of driving up to 3-A loads with exceptional power conversion efficiency, line and load regulation, and output accuracy. It operates within an input voltage range of 6 V to 42 V and can deliver an adjustable output voltage as low as 0.8 V. The module is packaged in an innovative TO-PMOD (NDW) package that enhances thermal performance and allows for both hand and machine soldering.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | TO-PMOD (NDW), 7 Pins |
| Operating Temperature Range (°C) | -40 to 125 |
| Maximum Total Output Power | 18 W |
| Output Current | Up to 3 A |
| Input Voltage Range | 6 V to 42 V |
| Output Voltage Range | 0.8 V to 6 V |
| Efficiency | Up to 90% |
| Switching Frequency | Adjustable up to 1 MHz |
Key Features
- 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
- Thermal Shutdown, Output Overvoltage Protection, Short-Circuit Protection, and Output Current Limit
- –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
- High Efficiency Reduces System Heat Generation
- Low Radiated Emissions (EMI) Tested With EN55022 Class B Standard
- Passes 10-V/m Radiated Immunity EMI Test Standard EN61000 4-3
Applications
The LMZ14203TZX-ADJ/NOPB is suitable for a variety of applications, including but not limited to:
- Powering FPGAs and ASICs due to its fast transient response and low output voltage ripple.
- Industrial and automotive systems requiring high reliability and robust protection features.
- Embedded systems and IoT devices that need efficient and compact power solutions.
- Telecommunication and networking equipment where high efficiency and low EMI are crucial.
Q & A
- What is the maximum output current of the LMZ14203TZX-ADJ/NOPB?
The maximum output current is up to 3 A. - What is the input voltage range for this module?
The input voltage range is from 6 V to 42 V. - What is the minimum output voltage that can be achieved?
The minimum output voltage is 0.8 V. - What protection features are included in the LMZ14203TZX-ADJ/NOPB?
The module includes thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, and output current limit. - How is the switching frequency adjusted?
The switching frequency can be adjusted up to 1 MHz using a single external resistor. - What is the operating temperature range of the LMZ14203TZX-ADJ/NOPB?
The operating temperature range is from -40°C to 125°C. - Is the LMZ14203TZX-ADJ/NOPB compatible with WEBENCH Power Designer?
Yes, it is fully enabled for use with WEBENCH Power Designer. - What are the benefits of the integrated shielded inductor?
The integrated shielded inductor simplifies the PCB layout and reduces radiated emissions. - Can the LMZ14203TZX-ADJ/NOPB operate at high ambient temperatures without thermal derating?
Yes, it operates at high ambient temperatures with no thermal derating. - What EMI standards does the LMZ14203TZX-ADJ/NOPB comply with?
The module complies with EN55022 Class B and passes the 10-V/m radiated immunity EMI test standard EN61000 4-3.
