Packaging information
| Package | Pins WQFN (NHZ) | 24 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 4,500 | LARGE T&R |
Features for the LM26484
- Step-Down DC/DC Converter
(Buck)
- 3.0–5.5V Input Range
- Externally Adjustable VOUT:
- Bucks 1 & 2: 0.8V–3.5V @ 2A
- 180° Phase Shift Between Bucks Clocks
- 2 MHz PWM Switching Frequency
- ±1% feedback Voltage Accuracy
- Automatic Soft Start
- Current Overload Protection
- PWM/PFM efficiency Modes Available
- Linear Regulator (LDO)
Controller
- 3.0V–5.5V Input Range
- Externally Adjustable VOUT
- ±1.5% Feedback Voltage Accuracy
- Regulated to Low VIN - Low VOUT LI-LO (Low Input Low Output) NFET Operation
- Input to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2
- Up to 1000 mA Output Current by Selection of External FET
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Description for the LM26484
The LM26484 is a multi-function, configurable Power Management Unit. This device integrates two highly efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and thermal overload protection circuitry. All regulator output voltages are externally adjustable. The LDO controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-24 pin package.