Overview
The LMZ10503TZE-ADJ/NOPB is a 3-A power module from Texas Instruments, designed as a complete and easy-to-use DC-DC solution. This module is capable of driving up to a 3-A load with exceptional power conversion efficiency, output voltage accuracy, and line and load regulation. It is available in an innovative TO-PMOD package that enhances thermal performance and allows for both hand and machine soldering. The LMZ10503TZE-ADJ/NOPB is a reliable and robust solution, featuring integrated protection mechanisms such as lossless cycle-by-cycle peak current limit, thermal shutdown, input undervoltage lockout, and prebiased start-up.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.95 | - | 5.5 | V |
| Output Voltage Range | 0.8 | - | 5 | V |
| Output Current | - | - | 3 | A |
| Maximum Total Output Power | - | - | 15 | W |
| Feedback Voltage Accuracy Over Temperature | - | - | ±1.63% | - |
| Switching Frequency | 750 | 1000 | 1160 | kHz |
| Junction Temperature Range | -40 | - | 125 | °C |
| Thermal Shutdown Temperature | - | - | 145 | °C |
Key Features
- Integrated Shielded Inductor
- Flexible Start-up Sequencing Using External Soft Start, Tracking, and Precision Enable
- Protection Against In-Rush Currents and Faults Such as Input UVLO and Output Short Circuit
- Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
- Pin-to-Pin Compatible With LMZ10504 (4 A / 20 W Maximum) and LMZ10505 (5 A / 25 W Maximum)
- Operates at High Ambient Temperatures
- High Efficiency up to 96% Reduces System Heat Generation
- Low Radiated Emissions (EMI) Tested to EN55022 Class B Standard
- Fast Transient Response for Powering FPGAs and ASICs
Applications
- Point-of-Load Conversions From 3.3-V and 5-V Rails
- Space-Constrained Applications
- Noise Sensitive Applications (e.g., Transceiver, Medical)
Q & A
- What is the maximum input voltage for the LMZ10503TZE-ADJ/NOPB?
The maximum input voltage is 5.5 V.
- What is the output current capability of the LMZ10503TZE-ADJ/NOPB?
The module can deliver up to 3 A of output current.
- What is the output voltage range of the LMZ10503TZE-ADJ/NOPB?
The output voltage range is from 0.8 V to 5 V.
- What is the maximum total output power of the LMZ10503TZE-ADJ/NOPB?
The maximum total output power is 15 W.
- What is the switching frequency of the LMZ10503TZE-ADJ/NOPB?
The switching frequency is between 750 kHz and 1160 kHz.
- Does the LMZ10503TZE-ADJ/NOPB have built-in protection mechanisms?
Yes, it includes protection against in-rush currents, input undervoltage lockout, output short circuit, and thermal shutdown.
- Is the LMZ10503TZE-ADJ/NOPB compatible with other modules?
Yes, it is pin-to-pin compatible with the LMZ10504 and LMZ10505 modules.
- What is the thermal shutdown temperature of the LMZ10503TZE-ADJ/NOPB?
The thermal shutdown temperature is 145°C.
- What are some typical applications for the LMZ10503TZE-ADJ/NOPB?
Typical applications include point-of-load conversions, space-constrained applications, and noise-sensitive applications such as transceivers and medical devices.
- How efficient is the LMZ10503TZE-ADJ/NOPB?
The module has a high efficiency of up to 96%, which reduces system heat generation.
