LM26480

Product Folder Order Now Technical Documents Tools & Software Support & Community LM26480 SNVS543N – JANUARY 2008 – REVISED JUNE 2017 LM26480 Dual 2-MHz, 1.5-A Buck Regulators and Dual 300-mA LDOs With Individual Enable and Power Good 1 Features 1 Input Voltage: 2.8 V to 5.5 V Compatible with Advanced Applications Processors and FPGAs Two LDOs for Powering Internal Processor Functions and I/Os Precision Internal Reference Thermal Overload Protection Current Overload Protection External Power-On-Reset Function for Buck1 and Buck2 Undervoltage Lockout Detector to Monitor Input Supply Voltage Step-Down DC-DC Converters (Buck) – 1.5-A Output Current – VOUT from: – Buck1 : 0.8 V to 2 V at 1.5 A – Buck2 : 1 V to 3.3 V at 1.5 A – Up to 96% efficiency – ±3% FB Voltage Accuracy – 2-MHz PWM Switching Frequency – PWM-to-PFM Automatic Mode Change Under Low Loads – Automatic Soft Start Linear Regulators (LDO) – VOUT of 1 V to 3.5 V – ±3% FB Voltage Accuracy – 300-mA Output Current – 25-mV (Typical) Dropout 2 Applications Core Digital Power Applications Processors Peripheral I/O Power Digital Radios Robot Drives Image Transmission Module Low-Power Digital Applications 3 Description The LM26480 is a multi-functional power management unit (PMU), optimized for low-power digital applications. This device integrates two highly efficient 1.5-A step-down DC-DC converters and two 300-mA linear regulators. The DC-DC buck converters provide typical efficienci...