Overview
The LM26480SQX-AA/NOPB from Texas Instruments is a multi-functional power management unit (PMU) designed to optimize power consumption in low-power digital applications. This device integrates two highly efficient 1.5-A step-down DC-DC converters and two 300-mA linear regulators (LDOs). It is tailored for use in advanced applications, including processors and FPGAs, providing a compact and efficient power management solution. The LM26480SQX-AA/NOPB features a wide input voltage range of 2.8V to 5.5V and offers high efficiency, thermal overload protection, and current overload protection, ensuring the safety and reliability of the system under various operating conditions.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Regulated outputs (#) | 4 | Vin (min) (V) | 2.8 |
| Vin (max) (V) | 5.5 | Iout (max) (A) | 1.5 |
| Configurability | Hardware configurable | Rating | Catalog |
| Step-down DC/DC controller | 0 | Step-down DC/DC converter | 2 |
| Step-up DC/DC controller | 0 | Step-up DC/DC converter | 0 |
| LDO | 2 | Iq (typ) (mA) | 0.033 |
| Switching frequency (max) (kHz) | 2500 | Features | Enable, Light-load efficiency, Power good, Synchronous rectification, UVLO fixed |
| Operating temperature range (°C) | -40 to 85 | Processor name | Generic |
| Processor supplier | Generic |
Key Features
- Compact SMT Package: Reduces PCB space requirements.
- Thermal Overload Protection: Prevents overheating and device failure.
- Wide Output Voltage Range: Adjustable switching frequency and output voltages for Buck1 (0.8V to 2V) and Buck2 (1V to 3.3V) at 1.5A each.
- High Efficiency: Up to 96% efficiency for the DC-DC converters.
- Linear Regulators (LDOs): Two LDOs with 300-mA output current each, offering a wide output voltage range of 1V to 3.5V.
- Protection Features: Includes undervoltage lockout, current overload protection, and an internal power-on-reset (POR) circuit.
- Independent Enable and Power Good: Each regulator has independent enable and power good signals.
Applications
- Core Digital Power: Suitable for powering core digital components in various systems.
- Applications Processors: Ideal for powering processors and their associated functions.
- Peripheral I/O Power: Can be used to power peripheral I/O components.
- Digital Radios: Applicable in digital radio systems.
- Robot Drives: Used in robotic systems for efficient power management.
- Image Transmission Module: Suitable for image transmission modules and other low-power digital applications.
Q & A
- What is the input voltage range of the LM26480SQX-AA/NOPB?
The input voltage range is from 2.8V to 5.5V.
- How many regulated outputs does the LM26480SQX-AA/NOPB have?
The device has four regulated outputs, consisting of two step-down DC-DC converters and two LDOs.
- What is the maximum output current of the step-down DC-DC converters?
The maximum output current for each step-down DC-DC converter is 1.5A.
- What are the key protection features of the LM26480SQX-AA/NOPB?
The device includes thermal overload protection, current overload protection, undervoltage lockout, and an internal power-on-reset (POR) circuit.
- What is the switching frequency of the DC-DC converters?
The switching frequency is up to 2 MHz.
- What is the operating temperature range of the LM26480SQX-AA/NOPB?
The operating temperature range is from -40°C to 85°C.
- Does the LM26480SQX-AA/NOPB have independent enable and power good signals?
Yes, each regulator has independent enable and power good signals.
- What is the typical efficiency of the DC-DC converters?
The typical efficiency of the DC-DC converters is up to 96%.
- What type of package does the LM26480SQX-AA/NOPB come in?
The device comes in a WQFN-24 package.
- Is the LM26480SQX-AA/NOPB RoHS compliant?
Yes, the device is RoHS compliant.
