Overview
The LMZ23603TZE/NOPB is a 3-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 loads and is available in an innovative package that enhances thermal performance, allowing for both hand and machine soldering. It accepts an input voltage range of 6 V to 36 V and delivers an adjustable and highly accurate output voltage as low as 0.8 V. The module requires only two external resistors and three external capacitors to complete the power solution, making it a robust and reliable choice with various protection features.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Maximum Total Output Power | 18 | W |
| Output Current | Up to 3 | A |
| Input Voltage Range | 6 to 36 | V |
| Output Voltage Range | 0.8 to 6 | V |
| Efficiency | Up to 92% | % |
| Operating Temperature Range | -40 to 85 | °C |
| Junction Temperature Range | -40 to 125 | °C |
| Package Type | TO-PMOD (NDW) 7-Pin | |
| Body Size | 10.16 mm × 9.85 mm |
Key Features
- Integrated Shielded Inductor
- Simple PCB Layout
- Frequency Synchronization Input (650 kHz to 950 kHz)
- Flexible Startup Sequencing Using External Soft-start, Tracking, and Precision Enable
- Protection Against Inrush Currents and Faults such as Input UVLO and Output Short Circuit
- Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
- Fast Transient Response for Powering FPGAs and ASICs
- Fully Enabled for WEBENCH Power Designer
- Pin Compatible With LMZ22005/LMZ23605/LMZ22003
- High Efficiency Reduces System Heat Generation
- Tested to EN55022 Class B
- Low Component Count (only 5 external components)
- Low Output Voltage Ripple
- Uses PCB as Heat Sink, No Airflow Required
Applications
- Point-of-load Conversions from 12-V and 24-V Input Rail
- Time-Critical Projects
- Space Constrained and High Thermal Requirement Applications
- Negative Output Voltage Applications
- Powering FPGAs and ASICs
Q & A
- What is the maximum output current of the LMZ23603?
The LMZ23603 can deliver up to 3-A output current. - What is the input voltage range for the LMZ23603?
The input voltage range is 6 V to 36 V. - What is the output voltage range of the LMZ23603?
The output voltage range is 0.8 V to 6 V. - What protection features does the LMZ23603 have?
The LMZ23603 includes thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit. - Can the LMZ23603 be synchronized with an external frequency source?
Yes, the LMZ23603 has a frequency synchronization input that allows synchronization over the 650-kHz to 950-kHz switching frequency range. - How many external components are required to complete the power solution?
Only two external resistors and three external capacitors are required. - What is the efficiency of the LMZ23603?
The efficiency can be up to 92%. - Is the LMZ23603 suitable for high thermal requirement applications?
Yes, it is designed for space-constrained and high thermal requirement applications. - Can the LMZ23603 be used for powering FPGAs and ASICs?
Yes, it is designed to provide fast transient response for powering FPGAs and ASICs. - Is the LMZ23603 compatible with other Texas Instruments modules?
Yes, it is pin compatible with LMZ22005, LMZ23605, and LMZ22003.
