Overview
The LMZ12008TZ/NOPB is a 8-A SIMPLE SWITCHER® power module from Texas Instruments, designed as an easy-to-use step-down DC-DC solution. This module is capable of driving up to 8-A load 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 20 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ12008 features a robust design with multiple protection mechanisms, including thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit. It also supports start-up into a prebiased output, making it suitable for various power supply applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Total Output Power | 40 | W |
| Output Current | Up to 8 | A |
| Input Voltage Range | 6 to 20 | V |
| Output Voltage Range | 0.8 to 6 | V |
| Efficiency | Up to 92% | % |
| Switching Frequency | 350 kHz | kHz |
| Junction Temperature Range | -40 to 125 | °C |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | TO-PMOD (NDY) 11-Pin |
Key Features
- Integrated Shielded Inductor
- Simple PCB Layout
- Fixed Switching Frequency (350 kHz)
- Flexible Start-up 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
- Fully Enabled for WEBENCH® Power Designer
- Pin Compatible With LMZ22010/08/06, LMZ12010/06, LMZ23610/08/06, and LMZ13610/08/06
- High Efficiency Reduces System Heat Generation
- Low Radiated Emissions (EMI) Tested to EN55022
- Only 7 External Components Required
- Low Output Voltage Ripple
- No External Heat Sink Required
Applications
- Point-of-load Conversions from 12-V Input Rail
- Time-Critical Projects
- Space Constrained / High Thermal Requirement Applications
- Negative Output Voltage Applications
Q & A
- What is the maximum output current of the LMZ12008?
The LMZ12008 can deliver up to 8-A output current.
- What is the input voltage range of the LMZ12008?
The input voltage range is from 6 V to 20 V.
- What is the output voltage range of the LMZ12008?
The output voltage range is from 0.8 V to 6 V.
- What is the switching frequency of the LMZ12008?
The switching frequency is fixed at 350 kHz.
- Does the LMZ12008 require an external heat sink?
No, the LMZ12008 does not require an external heat sink.
- What protection features does the LMZ12008 have?
The LMZ12008 includes thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit.
- Can the LMZ12008 start up into a prebiased output?
- How many external components are required to complete the power solution with the LMZ12008?
- Is the LMZ12008 compatible with other Texas Instruments power modules?
- What is the efficiency of the LMZ12008?
