Overview
The LMZ22003TZ/NOPB is a 3-A SIMPLE SWITCHER® power module from Texas Instruments, designed to provide a reliable and robust step-down DC-DC conversion solution. This module is capable of driving up to 3-A load and is available in an innovative TO-PMOD (NDW) package that enhances thermal performance. It can accept an input voltage range of 6 V to 20 V and deliver an adjustable output voltage from 0.8 V to 6 V. The LMZ22003TZ/NOPB is notable for its high efficiency, low component count, and comprehensive protection features, making it an ideal choice for various power supply applications.
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% | % |
| Switching Frequency Range | 650 to 950 | kHz |
| Junction Temperature Range | -40 to 125 | °C |
| Thermal Shutdown Temperature | 165 (typical) | °C |
| Output Voltage Ripple | 9 mVPP (typical) | mVPP |
| Line Regulation | ±0.02% (typical) | % |
| Load Regulation | 1 mV/A (typical) | mV/A |
Key Features
- Integrated shielded inductor for reduced EMI and simplified PCB layout
- Frequency synchronization input (650 kHz to 950 kHz)
- Flexible start-up sequencing using external soft-start, tracking, and precision enable
- Protection against inrush currents and faults such as input UVLO, output short circuit, thermal shutdown, and output overvoltage protection
- Low component count, requiring only 5 external components
- Low output voltage ripple and high efficiency to reduce system heat generation
- Uses PCB as heat sink, no airflow required
- Fast transient response suitable for powering FPGAs and ASICs
- Fully enabled for WEBENCH Power Designer
- Pin compatible with LMZ23605/LMZ23603/LMZ22005
Applications
The LMZ22003TZ/NOPB is typically used in applications requiring a reliable and efficient step-down DC-DC conversion. These include:
- Powering FPGAs and ASICs due to its fast transient response
- Multiple rail logic applications where prebiased start-up is necessary
- Industrial and automotive systems requiring high efficiency and robust protection features
- Embedded systems and IoT devices needing compact and efficient power solutions
Q & A
- What is the input voltage range of the LMZ22003TZ/NOPB?
The input voltage range is from 6 V to 20 V.
- What is the maximum output current of the LMZ22003TZ/NOPB?
The maximum output current is up to 3 A.
- What is the efficiency of the LMZ22003TZ/NOPB?
The efficiency can be up to 92%.
- Does the LMZ22003TZ/NOPB support frequency synchronization?
- What protection features does the LMZ22003TZ/NOPB have?
- Can the LMZ22003TZ/NOPB start up into a prebiased output?
- How many external components are required to complete the power solution?
- Does the LMZ22003TZ/NOPB require airflow for cooling?
- Is the LMZ22003TZ/NOPB compatible with other Texas Instruments modules?
- What is the junction temperature range of the LMZ22003TZ/NOPB?
