Overview
The LMZ23605TZ/NOPB is a 5-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 a 5-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 36 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23605 is known for its reliability and robust design, featuring various protection mechanisms such as 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 and synchronization over a 650- to 950-kHz switching frequency range.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Total Output Power | 30 | W |
| Output Current | Up to 5 | 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 | |
| Package Dimensions | 10.16 mm × 9.85 mm |
Key Features
- Integrated Shielded Inductor
- Simple 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 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/LMZ23603/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 Rails
- Time-Critical Projects
- Space Constrained / High Thermal Requirement Applications
- Negative Output Voltage Applications
- Powering FPGAs and ASICs
Q & A
- What is the input voltage range of the LMZ23605?
The input voltage range of the LMZ23605 is 6 V to 36 V.
- What is the maximum output current of the LMZ23605?
The maximum output current of the LMZ23605 is up to 5 A.
- What is the output voltage range of the LMZ23605?
The output voltage range of the LMZ23605 is 0.8 V to 6 V.
- What are the key protection features of the LMZ23605?
The LMZ23605 includes protection features such as thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, and output current limit.
- Can the LMZ23605 be synchronized with an external frequency source?
Yes, the LMZ23605 has a sync input that allows synchronization over the 650- to 950-kHz switching frequency range.
- What is the junction temperature range of the LMZ23605?
The junction temperature range of the LMZ23605 is -40°C to +125°C.
- How many external components are required to complete the power solution with the LMZ23605?
The LMZ23605 requires only 5 external components: two resistors and three capacitors.
- Is the LMZ23605 compatible with other Texas Instruments modules?
Yes, the LMZ23605 is pin compatible with LMZ22005, LMZ23603, and LMZ22003.
- What is the thermal performance of the LMZ23605 package?
The LMZ23605 package enhances thermal performance and uses the PCB as a heat sink, requiring no airflow.
- What are the efficiency levels of the LMZ23605?
The LMZ23605 has an efficiency of up to 92%, which helps reduce system heat generation.
