一個降壓直流/直流轉換器和五個線性穩壓器，具有 I2C 兼容接口
| Regulated outputs (#) | 6 |
| Vin (Min) (V) | 2.7 |
| Vin (Max) (V) | 4.5 |
| Iout (Max) (A) | 0.4 |
| Rating | Catalog |
| LDO | 5 |
| Iq (Typ) (mA) | 0.7 |
| Features | Dynamic Voltage Scaling, I2C Control |
| Shutdown current (ISD) (Typ) (uA) | 0.7 |
| Switching frequency (Typ) (kHz) | 2000 |
| Configurability | Software configurable |
- 5 Low Noise LDO’s for up to 300 mA
- One High-Efficiency Synchronous Magnetic Buck Regulator, IOUT 400 mA
- High Efficiency PFM Mode @Low IOUT
- Auto Mode PFM/PWM Switch
- Low Inductance 2.2 μH @ 2 MHz Clock
- Dynamic Voltage Scale Control
- I2C-Compatible Interface for the Controlling of Internal Registers
- 20-Bump 2.5 x 2.0 mm DSBGA Package
Key Specifications
- Programmable Vout from 0.8V to 2.3V on DC-DC
- Automatic Soft Start on DC-DC
- 200 mV Typ Dropout Voltage at 300 mA on LDO’s
- 2% (Typ) Output Voltage Accuracy on LDO’s
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The LP8720 is a multi-function, programmable Power Management Unit, optimized for sub block power requirement solution. This device integrates one highly efficient 400 mA step-down DC-DC converter with Dynamic Voltage Scale (DVS), five low noise low dropout (LDO) voltage regulators and a 400 KHz I2C-compatible interface to allow a host controller access to the internal control registers of the LP8720. The LP8720 additionally features programmable power-on sequencing.
LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads. The package will be the smallest 2.5 mm x 2.0 mm DSBGA 20-bump package.
