Converters | FAN53870
概览
The FAN53870 is a low Iq PMIC for mobile power applications such as camera modules. The PMIC contains two very low drop-out, 1A LDOs, guaranteed to operate from voltages as low as 1.0V input to improve system efficiency. Three LDOs are designed for ultra-low noise and high PSRR support of camera analog loads or can be used for powering RF circuitry. The FAN53870 contains two additional 300mA LDOs with excellent performance. Each LDO has two I2C settable Over Current Protection (OCP) levels and four different debounce timer settings. Each power input has its own Under-Voltage Level Output (UVLO) detection circuit and the LDOs operate independent of the VIN state of the other LDOs. The FAN53870 provides an interrupt pin to alert the system when an OCP, UVLO, over-temp (OT) occurs or if an output is under-voltage (UV).
- Camera module
- Smartphones
- Tablets
- Compact Camera Modules
- Wafer−Level Chip−Scale Package (WLCSP)
- Very Low Voltage Operating Levels
- 8mV Programmable Voltages Steps
- Soft−Start (SS) Inrush Current Limiting
- I2C Programmable Start-up/Shut-down Sequencing
- Interrupt Notification for OCP, UVLO, OT, UV
- Output Discharge When Shutdown
- Over-temperature Warning
- Programmable Compensation
- 0.1% Load Regulation for all LDOs
- LDO1 and LDO2: 800mA, VIN Range: 1.0V to 5.5V, VOUT Range: 0.8V to 1.5V
- Low Drop-out voltage, 120mV(Typ) for LDO1/2 @1A, 85mV(Typ) for LDO3/4/5@300mA, 110mV(Typ) for LDO6/7@300mA
- Current Limit to Protect Against Short Circuit
- I2C Protection Fault (UVLO, OCP, UVP and OTP) Registers
- LDO3 and LDO4: 300mA, VIN Range: 1.9V to 5.5V, VOUT Range: 1.5V to 3.4V，low noise
- LDO5,LDO6 and LDO7: 300mA, VIN Range: 1.9V to 5.5V, VOUT Range: 1.5V to 3.4V
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