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Product Detailed Parameters
- Description：IC REG QUAD BUCK/LNR SYNC 24WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Topology：Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs：4
- Frequency - Switching：2MHz
- Voltage/Current - Output 1：0.8V ~ 2V, 1.5A
- Voltage/Current - Output 2：1V ~ 3.3V, 1.5A
- Voltage/Current - Output 3：1V ~ 3.5V, 300mA
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：2.8V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-WQFN (4x4)
- Grade：-
- Qualification：-
Download product information
Overview
The LM26480SQX-AA/NOPB is a Texas Instruments PMIC featuring two 1.5A buck converters and two 300mA LDOs in a WQFN-24 package. It operates with an input voltage range of 1.74V to 5.5V, providing adjustable outputs from 800mV to 3.5V. The device includes a 2MHz PWM switching frequency, automatic soft-start, and a quiescent current of 33uA. It supports temperatures from -40°C to +85°C and offers thermal, current, and UVLO protection.
Feature Summary
- Integrates dual high-current buck regulators and dual low-dropout linear regulators for comprehensive power management
- Features precise internal reference voltages and automatic soft-start functionality for stable operation
- Includes built-in thermal overload, current overload, and undervoltage lockout detection mechanisms
Applications
- Advanced application processors requiring multiple regulated rails
- Field-programmable gate arrays (FPGAs) with mixed voltage requirements
- Low-power digital systems optimized for efficiency and size
Procurement Notes
Verify the specific suffix AA against the official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the WQFN-24 package dimensions align with your PCB footprint. Confirm that the operating temperature range meets your environmental specifications before finalizing procurement.
Selection Notes
Select this component when designing systems requiring integrated buck and LDO regulation within a compact form factor. It is suitable for applications needing high efficiency from the switching regulators alongside clean power from the LDOs. Consider the 2MHz switching frequency for smaller external passive components compared to lower-frequency alternatives.
Part Context
This part belongs to the LM26480 series of power management ICs designed for digital applications. It consolidates multiple power stages into a single solution, reducing board space and simplifying power distribution networks. The series is engineered to support complex digital logic families efficiently.
FAQ
What is the maximum output voltage for the LDOs?
The linear regulators support output voltages up to 3.5V.
Does the device include protection features?
Yes, it includes thermal overload protection, current overload protection, and undervoltage lockout detection.
