Overview
The LMZ22003TZE/NOPB is a 3-A SIMPLE SWITCHER® power module designed by Texas Instruments. This module is known for its reliability, robust design, and comprehensive protection features. It operates within an input voltage range of 6 V to 20 V and can output voltages from 0.8 V to 6 V. The LMZ22003 is optimized for high efficiency, reducing system heat generation, and it supports synchronization over a switching frequency range of 650 kHz to 950 kHz. This module is particularly useful in applications requiring low component count and minimal airflow, making it suitable for a variety of power supply needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 6 to 20 | V |
| Output Voltage Range | 0.8 to 6 | V |
| Output Current | Up to 3 | A |
| Efficiency | Up to 92% | % |
| Junction Temperature Range | –40 to 125 | °C |
| Switching Frequency Range | 650 to 950 | kHz |
| Thermal Shutdown | 165 (typical) | °C |
| ESD Rating (Human Body Model) | ±2000 | V |
| Package | NDW (7 pins) | |
| Body Size (Nominal) | 10.16 mm × 9.85 mm |
Key Features
- High Efficiency: Reduces system heat generation with peak efficiency up to 92%.
- Comprehensive Protection: Includes thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit.
- Low Component Count: Requires only 5 external components.
- Low Output Voltage Ripple: Ensures stable output voltage.
- No Airflow Required: Uses the PCB as a heat sink.
- Synchronization Capability: Supports synchronization over a 650 kHz to 950 kHz switching frequency range.
- Prebiased Start-Up: Properly starts up into a prebiased output, suitable for multiple rail logic applications.
Applications
The LMZ22003TZE/NOPB is versatile and can be used in a variety of applications, including:
- Industrial Power Supplies: Suitable for high-reliability industrial environments.
- Telecommunications Equipment: Ideal for powering telecom devices due to its high efficiency and low heat generation.
- Medical Devices: Can be used in medical equipment requiring stable and reliable power supply.
- Aerospace and Defense: Meets the stringent requirements of aerospace and defense applications.
- Automotive Systems: Applicable in automotive systems needing robust and efficient power modules.
Q & A
- What is the input voltage range of the LMZ22003TZE/NOPB?
The input voltage range is from 6 V to 20 V.
- What is the maximum output current of the LMZ22003TZE/NOPB?
The maximum output current is up to 3 A.
- What are the key protection features of the LMZ22003TZE/NOPB?
The module includes thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit.
- Does the LMZ22003TZE/NOPB require airflow for cooling?
No, it uses the PCB as a heat sink and does not require airflow.
- What is the switching frequency range of the LMZ22003TZE/NOPB?
The switching frequency range is from 650 kHz to 950 kHz.
- Can the LMZ22003TZE/NOPB start up into a prebiased output?
Yes, it can properly start up into a prebiased output, which is useful in multiple rail logic applications.
- What is the junction temperature range of the LMZ22003TZE/NOPB?
The junction temperature range is from –40°C to 125°C.
- How many external components are required for the LMZ22003TZE/NOPB?
Only 5 external components are required.
- What is the ESD rating of the LMZ22003TZE/NOPB?
The ESD rating is ±2000 V according to the human body model.
- What is the typical thermal shutdown temperature of the LMZ22003TZE/NOPB?
The typical thermal shutdown temperature is 165°C.
