Overview
The LMZ14202TZ-ADJ/NOPB, produced by Texas Instruments, is a SIMPLE SWITCHER® step-down DC-DC power module designed for high-efficiency power conversion. This module can drive up to 2 A of load current 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 LMZ14202 is packaged in a 7-pin TO-PMOD package, enhancing thermal performance and facilitating easy mounting and manufacturing.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 6 | 42 | V | |
| Output Voltage Range | 0.8 | 6 | V | |
| Output Current | 2 | A | ||
| Total Output Power | 12 | W | ||
| Efficiency | up to 90% | % | ||
| Junction Temperature Range | -40 | 125 | °C | |
| Thermal Shutdown | 165 | °C | ||
| Switching Frequency | up to 1 MHz | |||
| Output Voltage Ripple | 8 mV-P-P |
Key Features
- High-efficiency power conversion with up to 90% efficiency.
- Low output voltage ripple and fast transient response, making it suitable for powering FPGAs and ASICs.
- Protection features include thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, and output current limit.
- Start-up into a pre-biased output, which is beneficial in multiple rail logic applications.
- Low external component count, requiring only three external resistors and four external capacitors.
- Pin-to-pin compatible with other SIMPLE SWITCHER® power modules (e.g., LMZ14203/2/1, LMZ12003/2/1).
- Compliant with EN55022 Class B standard for low radiated emissions (EMI).
- Operates at high ambient temperatures without thermal derating.
- Single exposed pad and standard pinout for easy mounting and manufacturing.
Applications
The LMZ14202 is suitable for a variety of applications, including:
- Powering FPGAs and ASICs due to its fast transient response and low output voltage ripple.
- Space-constrained and high thermal requirement applications, such as in industrial, automotive, and consumer electronics.
- Negative output voltage applications (see AN-2027 for details).
- Multiple rail logic applications where start-up into a pre-biased output is necessary.
Q & A
- What is the input voltage range of the LMZ14202?
The input voltage range is from 6 V to 42 V.
- What is the maximum output current of the LMZ14202?
The maximum output current is 2 A.
- What is the typical efficiency of the LMZ14202?
The typical efficiency is up to 90%.
- What protection features does the LMZ14202 have?
The LMZ14202 includes thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, and output current limit.
- Can the LMZ14202 start up into a pre-biased output?
Yes, the LMZ14202 can start up into a pre-biased output.
- What is the switching frequency range of the LMZ14202?
The switching frequency can be adjusted up to 1 MHz using an external resistor.
- Is the LMZ14202 compliant with any EMI standards?
Yes, it is compliant with the EN55022 Class B standard for low radiated emissions (EMI).
- What is the junction temperature range of the LMZ14202?
The junction temperature range is from -40°C to 125°C.
- How many external components are required to complete the power solution?
Only three external resistors and four external capacitors are required.
- Is the LMZ14202 suitable for high ambient temperature applications?
Yes, it operates at high ambient temperatures without thermal derating.
