Overview
The LMR10515XMF/NOPB is a high-frequency, PWM step-down DC/DC converter produced by Texas Instruments. This monolithic regulator is available in a 5-pin SOT-23 package and is designed to provide local DC/DC conversion with fast transient response and accurate regulation. It is particularly suited for space-constrained applications due to its compact size and minimal external component requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3 to 5.5 | V |
| Output Voltage Range | 0.6 to 4.5 | V |
| Output Current (Max) | 1.5 | A |
| Switching Frequency | 1.6 MHz (LMR10515X), 3 MHz (LMR10515Y) | MHz |
| Quiescent Current (Switching) | 3.3 to 5 mA | mA |
| Quiescent Current (Shutdown) | 30 nA | nA |
| Switch On Resistance | 130 mΩ (SOT-23), 150 mΩ (WSON) | mΩ |
| Thermal Shutdown Temperature | 165 °C | °C |
| Operating Temperature Range | -40 to 125 °C | °C |
| Package Type | SOT-23 | |
| Package Dimensions | 2.9 mm x 1.6 mm x 1.2 mm | mm |
Key Features
- Internal Soft-Start circuitry to reduce inrush current
- Current-Mode PWM Operation with internal compensation
- Thermal Shutdown and output over-voltage protection
- Pulse-by-pulse current limit
- Ultra-low shutdown current of 30 nA
- High efficiency up to 93%
- Compact SOT-23 and WSON packaging options
- Support for small surface mount inductors and chip capacitors due to high switching frequencies
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 LMR10515XMF/NOPB?
The input voltage range is from 3 V to 5.5 V.
- What is the maximum output current of the LMR10515XMF/NOPB?
The maximum output current is up to 1.5 A.
- What are the switching frequencies available for the LMR10515XMF/NOPB?
The switching frequencies are 1.6 MHz for the LMR10515X and 3 MHz for the LMR10515Y.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is 30 nA.
- What are the package options for the LMR10515XMF/NOPB?
The package options include SOT-23 and WSON.
- What is the thermal shutdown temperature of the LMR10515XMF/NOPB?
The thermal shutdown temperature is 165 °C.
- Does the LMR10515XMF/NOPB have internal compensation?
Yes, it is internally compensated.
- What is the maximum duty cycle of the LMR10515XMF/NOPB?
The maximum duty cycle is 94%.
- What are some typical applications for the LMR10515XMF/NOPB?
Typical applications include point-of-load conversions, space-constrained applications, battery-powered equipment, industrial distributed power applications, power meters, and portable hand-held instruments.
- How efficient is the LMR10515XMF/NOPB?
The efficiency can be up to 93%.
- Does the LMR10515XMF/NOPB have output over-voltage protection?
Yes, it includes output over-voltage protection.
