Overview
The LMZ22008TZE/NOPB is an 8-A SIMPLE SWITCHER® power module designed by Texas Instruments. This module is an easy-to-use step-down DC-DC solution capable of driving up to 8-A load. It features an innovative package that enhances thermal performance and allows for hand or machine soldering. The LMZ22008TZE/NOPB accepts an input voltage range of 6 V to 20 V and can deliver an adjustable output voltage as low as 0.8 V. It is fully enabled for WEBENCH® Power Designer and requires only two external resistors and external capacitors to complete the power solution.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 6 | - | 20 | V |
| Output Voltage Range | 0.8 | - | 6 | V |
| Output Current | - | - | 8 | A |
| Maximum Total Output Power | - | - | 40 | W |
| Efficiency | - | - | 92% | % |
| Junction Temperature Range | -40 | - | 125 | °C |
| Switching Frequency Range | 314 kHz | 359 kHz | 600 kHz | kHz |
Key Features
- Integrated Shielded Inductor: Simplifies PCB layout and reduces EMI.
- Current Sharing Capability: Allows multiple modules to be connected in parallel for higher load currents.
- Frequency Synchronization: Input for synchronizing the PWM operating frequency to an external frequency source.
- Protection Features: Includes thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit.
- Flexible Start-up Sequencing: Supports external soft-start, tracking, and precision enable.
- Low Output Voltage Ripple: Minimizes noise in the output voltage.
- No External Heat Sink Required: Efficient thermal design eliminates the need for an external heat sink.
- Simple PCB Layout: Requires only a few external components to complete the power solution.
Applications
- Point-of-load Conversions: Ideal for converting 12-V input rails to various output voltages.
- Time-Critical Projects: Suitable for applications requiring quick and reliable power solutions.
- Space Constrained and High Thermal Requirement Applications: Compact design and efficient thermal performance make it suitable for space-constrained and high-thermal applications.
- Negative Output Voltage Applications: Can be used in applications requiring negative output voltages.
Q & A
- What is the input voltage range of the LMZ22008TZE/NOPB?
The input voltage range is 6 V to 20 V.
- What is the maximum output current of the LMZ22008TZE/NOPB?
The maximum output current is 8 A.
- What is the output voltage range of the LMZ22008TZE/NOPB?
The output voltage range is 0.8 V to 6 V.
- Does the LMZ22008TZE/NOPB require an external heat sink?
No, it does not require an external heat sink due to its efficient thermal design.
- What protection features are included in the LMZ22008TZE/NOPB?
It includes thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit.
- Can the LMZ22008TZE/NOPB be synchronized with an external frequency source?
Yes, it has a sync input for synchronizing the PWM operating frequency to an external frequency source between 314 kHz and 600 kHz.
- How many external components are required to complete the power solution?
Only two external resistors and external capacitors are required.
- Is the LMZ22008TZE/NOPB suitable for high-thermal applications?
Yes, it is designed to handle high thermal requirements and does not need an external heat sink.
- Can multiple LMZ22008TZE/NOPB modules be connected in parallel?
Yes, multiple modules can be connected in parallel for higher load currents using the current sharing capability.
- What is the typical switching frequency of the LMZ22008TZE/NOPB?
The typical switching frequency is 359 kHz.
