Overview
The LMZ10505TZ-ADJ/NOPB from Texas Instruments is a highly efficient and versatile DC-DC power module designed to provide up to 5-A output current. This module is part of the LMZ1050x family and is known for its exceptional power conversion efficiency, output voltage accuracy, and robust thermal performance. The LMZ10505 is packaged in a 7-pin TO-PMOD (NDW) package, which enhances thermal dissipation and allows for both hand and machine soldering. It operates within an input voltage range of 2.95 V to 5.5 V and can deliver an adjustable output voltage from 0.8 V to 5 V, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.95 | - | 5.5 | V |
| Output Voltage Range | 0.8 | - | 5 | V |
| Output Current | - | - | 5 | A |
| Total Output Power | - | - | 25 | W |
| Efficiency | - | - | Up to 96% | % |
| Junction Temperature Range | -40 | - | 125 | °C |
| Thermal Shutdown Temperature | - | 145 | - | °C |
| Feedback Voltage Accuracy | - | ±1.63% | - | % |
| Package Type | - | - | TO-PMOD (NDW) 7-pin | - |
Key Features
- Integrated Shielded Inductor: Enhances efficiency and reduces EMI.
- Flexible Start-up Sequencing: Supports external soft-start, tracking, and precision enable.
- Protection Features: Includes protection against in-rush currents, overcurrent, short-circuit faults, input undervoltage lockout, and thermal shutdown.
- High Efficiency: Up to 96% efficiency reduces system heat generation.
- Low Radiated Emissions: Compliant with EN55022 Class B standard and FCC Part 15 Subpart B.
- Fast Transient Response: Suitable for powering FPGAs and ASICs.
- Prebiased Start-Up Capability: Protects the load from damage during start-up in prebiased conditions.
- WEBENCH Compatibility: Fully enabled for use with WEBENCH Power Designer for customized designs.
Applications
- Point-of-Load Conversions: Ideal for conversions from 3.3-V and 5-V rails.
- Space-Constrained Applications: Suitable for applications where space is limited.
- Noise-Sensitive Applications: Used in transceiver, medical, and other noise-sensitive applications.
Q & A
- What is the maximum output current of the LMZ10505?
The LMZ10505 can deliver up to 5-A output current.
- What is the input voltage range of the LMZ10505?
The input voltage range is from 2.95 V to 5.5 V.
- What is the output voltage range of the LMZ10505?
The output voltage range is from 0.8 V to 5 V.
- What is the maximum total output power of the LMZ10505?
The maximum total output power is 25 W.
- What is the efficiency of the LMZ10505?
The efficiency can be up to 96%.
- What protection features does the LMZ10505 have?
The LMZ10505 includes protection against in-rush currents, overcurrent, short-circuit faults, input undervoltage lockout, and thermal shutdown.
- Is the LMZ10505 compatible with WEBENCH Power Designer?
Yes, the LMZ10505 is fully enabled for use with WEBENCH Power Designer.
- What is the package type of the LMZ10505?
The LMZ10505 is packaged in a 7-pin TO-PMOD (NDW) package.
- What are some common applications of the LMZ10505?
Common applications include point-of-load conversions, space-constrained applications, and noise-sensitive applications such as in transceivers and medical devices.
- How does the LMZ10505 handle prebiased start-up conditions?
The LMZ10505 protects the load from damage during start-up in prebiased conditions by not sinking current until the soft-start voltage exceeds the voltage on the FB pin.
