Overview
The LMZ10504 power module, produced by Texas Instruments, is a comprehensive and user-friendly DC-DC solution designed to drive loads up to 4 A with exceptional power conversion efficiency, output voltage accuracy, and robust line and load regulation. This module is packaged in an innovative TO-PMOD (7) package that enhances thermal performance and supports both hand and machine soldering. The LMZ10504 is a reliable solution that incorporates features such as lossless cycle-by-cycle peak current limit, thermal shutdown, input undervoltage lockout, and prebiased start-up, making it suitable for a variety 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 | 4 | A | ||
| Maximum Total Output Power | 20 | W | ||
| Feedback Voltage Accuracy | ±1.63% | |||
| Junction Temperature | -40 | 125 | °C | |
| Thermal Shutdown Temperature | 145 | °C | ||
| Peak Reflow Temperature | 245 | °C | ||
| Package Type | TO-PMOD (7) | |||
| Body Size (Nominal) | 9.85 mm × 10.16 mm |
Key Features
- High efficiency up to 96%, reducing system heat generation.
- Low radiated emissions (EMI) tested to EN55022 Class B standard.
- Fast transient response suitable for powering FPGAs and ASICs.
- Externally programmable soft-start capacitor for controlled start-up.
- Lossless cycle-by-cycle peak current limit to protect against overcurrent or short-circuit faults.
- Thermal shutdown and input undervoltage lockout for robust protection.
- Prebiased start-up capability.
- 1-MHz fixed-frequency PWM switching for predictable EMI characteristics.
- Flexible start-up sequencing using external soft-start, tracking, and precision enable.
- Compatibility with WEBENCH® and Power Designer for custom design.
Applications
- Point-of-load conversions from 3.3-V and 5-V rails.
- Space-constrained applications due to its compact TO-PMOD package.
- Noise-sensitive applications such as transceivers and medical devices.
Q & A
- What is the input voltage range of the LMZ10504?
The input voltage range of the LMZ10504 is from 2.95 V to 5.5 V.
- What is the maximum output current of the LMZ10504?
The maximum output current of the LMZ10504 is up to 4 A.
- What is the maximum total output power of the LMZ10504?
The maximum total output power of the LMZ10504 is 20 W.
- What is the feedback voltage accuracy of the LMZ10504?
The feedback voltage accuracy of the LMZ10504 is ±1.63% over temperature.
- Does the LMZ10504 have thermal protection?
Yes, the LMZ10504 features thermal shutdown at a junction temperature of 145°C.
- What is the package type and size of the LMZ10504?
The LMZ10504 is packaged in a TO-PMOD (7) package with a nominal body size of 9.85 mm × 10.16 mm.
- Is the LMZ10504 suitable for noise-sensitive applications?
Yes, the LMZ10504 is suitable for noise-sensitive applications due to its low radiated emissions and fast transient response.
- Can the LMZ10504 be used in space-constrained designs?
Yes, the LMZ10504 is designed for space-constrained applications due to its compact package.
- Does the LMZ10504 support external soft-start and tracking features?
Yes, the LMZ10504 supports externally programmable soft-start and tracking features.
- Is the LMZ10504 compatible with WEBENCH® and Power Designer?
Yes, the LMZ10504 is fully enabled for WEBENCH® and Power Designer, allowing for custom design.
