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 efficiencies of 96%, allowing for minimal power consumption. Features include soft start, undervoltage lockout, current overload protection, thermal overload protection, and an internal power-on-reset (POR) circuit, which monitors the output voltage levels on bucks 1 and 2.
● 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
●All trademarks are the property of their respective owners.
