Overview
The LMR10515YMFX/NOPB is a high-frequency, PWM step-down DC/DC converter produced by Texas Instruments. This monolithic regulator is available in both 5-pin SOT-23 and 6-pin WSON packages, making it ideal for space-constrained applications. It provides local DC/DC conversion with fast transient response and accurate regulation, requiring a minimum of external components. The LMR10515 is designed to drive loads up to 1.5 A with an internal 130-mΩ PMOS switch, ensuring high power density. The device features internal soft-start, current-mode PWM operation, and thermal shutdown, among other advanced features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3 V to 5.5 V | V |
| Output Voltage Range | 0.6 V to 4.5 V | V |
| Output Current | Up to 1.5 A | A |
| Switching Frequencies | 1.6 MHz (LMR10515X), 3 MHz (LMR10515Y) | MHz |
| Shutdown IQ | 30 nA Typical | nA |
| Switch On Resistance | 130 mΩ (SOT-23), 150 mΩ (WSON) | mΩ |
| Thermal Shutdown Temperature | 165 °C | °C |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Package Types | SOT-23 (5-pin), WSON (6-pin) | - |
| Package Dimensions | SOT-23: 2.92 × 2.84 × 1 mm, WSON: 3 × 3 × 0.8 mm | mm |
Key Features
- Input Voltage Range of 3 V to 5.5 V
- Output Voltage Range of 0.6 V to 4.5 V
- Output Current up to 1.5 A
- 1.6-MHz (LMR10515X) and 3-MHz (LMR10515Y) Switching Frequencies
- Low Shutdown IQ, 30 nA Typical
- Internal Soft-Start
- Internally Compensated
- Current-Mode PWM Operation
- Thermal Shutdown
- Tiny Overall Solution Reduces System Cost
- SOT-23 (2.92 × 2.84 × 1 mm) and WSON (3 × 3 × 0.8 mm) Packaging
- Create a custom design using the LMR10515 with the WEBENCH® Power Designer
Applications
- Point-of-Load Conversions from 3.3-V and 5-V Rails
- Space Constrained Applications
- Battery Powered Equipment
- Industrial Distributed Power Applications
- Power Meters
- Portable Hand-Held Instruments
Q & A
- What is the input voltage range of the LMR10515?
The input voltage range is from 3 V to 5.5 V.
- What are the available output voltage ranges for the LMR10515?
The output voltage range is from 0.6 V to 4.5 V.
- What is the maximum output current of the LMR10515?
The maximum output current is up to 1.5 A.
- What are the switching frequencies available for the LMR10515?
The switching frequencies are 1.6 MHz (LMR10515X) and 3 MHz (LMR10515Y).
- What is the typical shutdown current (IQ) of the LMR10515?
The typical shutdown current (IQ) is 30 nA.
- Does the LMR10515 have internal compensation?
Yes, the LMR10515 is internally compensated.
- What type of PWM operation does the LMR10515 use?
The LMR10515 uses current-mode PWM operation.
- Does the LMR10515 have thermal shutdown protection?
Yes, the LMR10515 has thermal shutdown protection.
- What are the package options for the LMR10515?
The LMR10515 is available in SOT-23 (5-pin) and WSON (6-pin) packages.
- How can I design a custom application using the LMR10515?
You can create a custom design using the LMR10515 with the WEBENCH® Power Designer.
