两个直流/直流转换器和一个 LDO 可配置 PMIC
| Regulated outputs (#) | 3 |
| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 5.5 |
| Iout (Max) (A) | 2 |
| Rating | Catalog |
| LDO | 1 |
| Features | Enable, Over Current Protection, Power Good, Power Sequencing, Synchronous Rectification, Thermal Shutdown, UVLO Fixed |
| Processor name | Generic |
| Processor supplier | Generic |
| Shutdown current (ISD) (Typ) (uA) | 0.03 |
| Switching frequency (Typ) (kHz) | 2000 |
| Configurability | Hardware configurable |
- 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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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.
