Overview
The LMZ10501SILT from Texas Instruments is a 1-A SIMPLE SWITCHER® nano module, designed as a step-down DC-DC power converter. This module is highly efficient and compact, making it ideal for space-constrained applications. It operates with an input voltage range of 2.7 V to 5.5 V and can deliver an output voltage between 0.6 V and 3.6 V. The module integrates an inductor and requires minimal external components for basic operation, including an input capacitor, an output capacitor, a small VCON filter capacitor, and two resistors. It features internal current limit, soft-start function, current overload protection, and thermal shutdown, ensuring reliable and efficient power conversion.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 - 5.5 | V |
| Output Voltage Range | 0.6 - 3.6 | V |
| Output Current | Up to 1 | A |
| Efficiency | Up to 95% | % |
| Switching Frequency | 2.0 MHz | Hz |
| Package Type | µSIP (8-pin) | |
| Package Size | 3.00 mm × 2.60 mm | mm |
| Operating Temperature Range | -40°C to 125°C | °C |
| ESD Rating (HBM) | ±1000 V | V |
| ESD Rating (CDM) | ±250 V | V |
Key Features
- High efficiency up to 95%
- Integrated inductor with over 1.2 A DC current rating and soft saturation profile
- Internal current limit, soft-start function, current overload protection, and thermal shutdown
- Fixed 2.0 MHz PWM mode operation
- Dynamically adjustable output voltage between 0.6 V and 3.6 V
- Compact 8-pin µSIP footprint package
- Low output noise and high duty cycle operation
- Under voltage lockout (UVLO) circuit for proper operation during startup and shutdown
Applications
- Point of load conversions from 3.3 V and 5 V rails
- Space-constrained applications
- Low output noise applications
- General DC-DC conversion in embedded systems, industrial control, and consumer electronics
Q & A
- What is the input voltage range of the LMZ10501SILT?
The input voltage range is 2.7 V to 5.5 V. - What is the maximum output current of the LMZ10501SILT?
The maximum output current is up to 1 A. - What is the switching frequency of the LMZ10501SILT?
The switching frequency is fixed at 2.0 MHz. - What protection features are included in the LMZ10501SILT?
The module includes internal current limit, soft-start function, current overload protection, and thermal shutdown. - How is the output voltage adjusted in the LMZ10501SILT?
The output voltage can be adjusted dynamically between 0.6 V and 3.6 V by driving the VCON pin. - What type of capacitors are recommended for input and output filters?
Low ESR multi-layer ceramic capacitors (MLCC) are recommended. - What is the operating temperature range of the LMZ10501SILT?
The operating temperature range is -40°C to 125°C. - How does the LMZ10501SILT handle output short circuit protection?
The module features a second level of short circuit protection that engages if the feedback voltage falls to 0.375 V, entering a hiccup mode to limit excessive current draw. - What is the package type and size of the LMZ10501SILT?
The package type is µSIP (8-pin) with a size of 3.00 mm × 2.60 mm. - Is the LMZ10501SILT suitable for high duty cycle operation?
Yes, it features a transition mode to extend the output regulation range to the minimum possible input voltage.
