Overview
The LM3480IM3X-15/NOPB is an integrated linear voltage regulator produced by Texas Instruments. This device is part of the LM3480 series, which offers high input voltage operation up to 30 V and ensures a maximum dropout of 1.2 V at a full load of 100 mA. The LM3480IM3X-15/NOPB specifically provides a 15-V output, making it a compact alternative to industry-standard LM78Lxx series and similar devices. It is packaged in a tiny 3-lead SOT-23 package, enhancing its suitability for space-constrained applications.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Max | |
|---|---|---|---|---|---|
| Input Voltage Range | V | -0.3 | 35 | ||
| Output Voltage (VNOM = 15 V) | VIN = VNOM + 1.5 V, 1 mA ≤ IOUT ≤ 100 mA | V | 14.4 | 15 | 15.6 |
| Line Regulation | VNOM + 1.5 V ≤ VIN ≤ 30 V, IOUT = 1 mA | mV | 36 | 40 | 45 |
| Load Regulation | VNOM + 1.5 V ≤ VIN ≤ 30 V, 10 mA ≤ IOUT ≤ 100 mA | mV | 60 | 75 | |
| Dropout Voltage | IOUT = 100 mA | V | 0.9 | 1.1 | 1.2 |
| Output Noise Voltage | Bandwidth: 10 Hz to 100 kHz | µVrms | 360 | 450 | |
| Junction Temperature | °C | -40 | 150 | ||
| Storage Temperature | °C | -65 | 150 |
Key Features
- High input voltage operation up to 30 V
- Ensured maximum dropout of 1.2 V at full load of 100 mA
- Available in 3.3-V, 5-V, 12-V, and 15-V output versions
- Compact 3-lead SOT-23 package
- Minimum input and output capacitance of 0.1 µF required for stability
- No specific ESR limitation for input and output capacitors
- Thermal shutdown and current limit protection
Applications
The LM3480IM3X-15/NOPB is suitable for various applications requiring a stable and regulated 15-V output voltage. These include:
- Portable electronics where space is limited
- Industrial control systems requiring stable voltage regulation
- Automotive systems where high input voltage tolerance is necessary
- Medical devices needing reliable and compact voltage regulation
Q & A
- What is the maximum input voltage for the LM3480IM3X-15/NOPB?
The maximum input voltage for the LM3480IM3X-15/NOPB is 30 V.
- What is the ensured maximum dropout voltage at full load?
The ensured maximum dropout voltage at full load is 1.2 V.
- What are the available output voltage versions for the LM3480 series?
The LM3480 series is available in 3.3-V, 5-V, 12-V, and 15-V output versions.
- What is the package type for the LM3480IM3X-15/NOPB?
The LM3480IM3X-15/NOPB is packaged in a 3-lead SOT-23 package.
- What is the minimum capacitance required for input and output stability?
A minimum capacitance of 0.1 µF is required for both input and output stability.
- Does the LM3480IM3X-15/NOPB have thermal shutdown protection?
- What is the typical output noise voltage for the LM3480IM3X-15/NOPB?
The typical output noise voltage is 360 µVrms to 450 µVrms over a bandwidth of 10 Hz to 100 kHz.
- What are the recommended layout guidelines for the LM3480IM3X-15/NOPB?
Components should be placed on the same side of the circuit board, close to the respective LDO pin connections. A ground reference plane is recommended to minimize inductive parasitics and improve circuit stability.
- What is the junction temperature range for the LM3480IM3X-15/NOPB?
The junction temperature range is from -40°C to 150°C.
- What is the storage temperature range for the LM3480IM3X-15/NOPB?
The storage temperature range is from -65°C to 150°C.
