Overview
The LMZ14203TZ-ADJ/NOPB is a SIMPLE SWITCHER power module from Texas Instruments, designed as an easy-to-use step-down DC-DC solution. This module can drive up to 3-A load 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 available in an innovative TO-PMOD package that enhances thermal performance and allows for both hand and machine soldering. It requires only three external resistors and four external capacitors to complete the power solution, making it a reliable and robust design for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 6 to 42 | V |
| Output Voltage Range | 0.8 to 6 | V |
| Maximum Output Current | Up to 3 | A |
| Maximum Total Output Power | 18 | W |
| Efficiency | Up to 90% | % |
| Junction Temperature Range | -40 to 125 | °C |
| Package Type | TO-PMOD (7-pin) | |
| Thermal Resistance (Junction-to-Ambient) | 19.3 °C/W (4-layer PCB), 21.5 °C/W (2-layer PCB) | °C/W |
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, Input UVLO, Output Overvoltage Protection, Short-Circuit Protection, and Output Current Limit
- 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 with Other LMZ1420x and LMZ1200x Family Members
- Operates at High Ambient Temperature With No Thermal Derating
- 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
- Point of Load Conversions From 12-V and 24-V Input Rail
- Space Constrained and High Thermal Requirement Applications
- Negative Output Voltage Applications (See AN-2027 SNVA425)
- Powering FPGAs and ASICs Due to Fast Transient Response
Q & A
- What is the input voltage range of the LMZ14203TZ-ADJ/NOPB?
The input voltage range is from 6 V to 42 V.
- What is the maximum output current of the LMZ14203TZ-ADJ/NOPB?
The maximum output current is up to 3 A.
- What is the efficiency of the LMZ14203TZ-ADJ/NOPB?
The efficiency can be up to 90%.
- What are the key protection features of the LMZ14203TZ-ADJ/NOPB?
The key protection features include thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, and output current limit.
- What is the junction temperature range of the LMZ14203TZ-ADJ/NOPB?
The junction temperature range is from -40°C to 125°C.
- What type of package does the LMZ14203TZ-ADJ/NOPB come in?
The module comes in a TO-PMOD (7-pin) package.
- How does the LMZ14203TZ-ADJ/NOPB handle thermal performance?
The module operates at high ambient temperature with no thermal derating and has a low thermal resistance, enhancing thermal performance.
- What are the EMI characteristics of the LMZ14203TZ-ADJ/NOPB?
The module has low radiated emissions tested with EN55022 Class B Standard and passes the 10-V/m radiated immunity EMI test standard EN61000 4-3.
- Can the LMZ14203TZ-ADJ/NOPB be used for negative output voltage applications?
Yes, it can be used for negative output voltage applications (see AN-2027 SNVA425).
- How many external components are required to complete the power solution using the LMZ14203TZ-ADJ/NOPB?
The module requires only three external resistors and four external capacitors to complete the power solution.
