Overview
The LMZ14201TZ-ADJ/NOPB from Texas Instruments is a SIMPLE SWITCHER® power module designed for point-of-load conversions. This module is an easy-to-use step-down DC-DC solution that can drive up to 1-A load with high 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 a TO-PMOD (7-pin) leaded SMT package, enhancing thermal performance and ease of mounting and manufacturing.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 6 | - | 42 | V |
| Output Voltage Range | 0.8 | - | 6 | V |
| Output Current | - | - | 1 | A |
| Maximum Total Output Power | - | - | 6 | W |
| Efficiency | - | - | 90% | % |
| Junction Temperature Range | -40 | - | 125 | °C |
| Switching Frequency | - | - | 1 MHz | Hz |
| Thermal Shutdown | - | 165 | - | °C |
Key Features
- Integrated shielded inductor for reduced EMI and improved thermal performance.
- Simple PCB layout with minimal external components required (three resistors and four capacitors).
- Flexible start-up sequencing using external soft-start and precision enable.
- Protection features include thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, and output current limit.
- High efficiency reduces system heat generation.
- Low radiated emissions (EMI) compliant with EN55022 Class B standard.
- Fast transient response suitable for powering FPGAs and ASICs.
- Pin-to-pin compatible with other LMZ1420x and LMZ1200x family members.
Applications
- Point-of-load conversions from 12-V and 24-V input rails.
- Time-critical projects requiring fast and reliable power solutions.
- Space-constrained and high thermal requirement applications.
- Powering FPGAs and ASICs due to fast transient response.
- Negative output voltage applications (refer to AN-2027).
Q & A
- What is the input voltage range of the LMZ14201?
The input voltage range is from 6 V to 42 V.
- What is the maximum output current of the LMZ14201?
The maximum output current is 1 A.
- What is the minimum output voltage that can be set for the LMZ14201?
The minimum output voltage is 0.8 V.
- What are the key protection features of the LMZ14201?
The key protection features include thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, and output current limit.
- How does the LMZ14201 manage thermal issues?
The LMZ14201 has an internal thermal shutdown circuit that activates at 165 °C (typical) to prevent overheating.
- What is the switching frequency range of the LMZ14201?
The switching frequency can be adjusted up to 1 MHz using an external resistor.
- Is the LMZ14201 suitable for high ambient temperature environments?
Yes, it operates at high ambient temperatures without thermal derating.
- What is the efficiency of the LMZ14201?
The efficiency can be up to 90% depending on the input and output conditions.
- Does the LMZ14201 comply with EMI standards?
Yes, it complies with EN55022 Class B standard for low radiated emissions.
- What type of package is the LMZ14201 available in?
The LMZ14201 is available in a TO-PMOD (7-pin) leaded SMT package.
