Packaging information
| Package | Pins WQFN (RTW) | 24 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 1,000 | SMALL T&R |
Features for the LM26480
- 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
Description for the LM26480
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.