ROHM BD71815AGW-E2 PMIC for Battery Powered Systems is a single-chip power management IC that coordinates 5 buck converters, 8 LDOs, a boost driver for LED, and a 500mA single-cell linear charger. The BD71815AGW-E2 PMIC also includes a real-time clock (RTC), a 32 kHz crystal oscillator, a Coulomb counter and a general purpose output (GPO). The BD71815AGW-E2 PMIC buck converters supply power to the application processor and maintain high efficiency over a wide range of current loads by supporting both PFM and PWM modes, as well as system peripherals. BD71815AGW-E2 PMIC operates at a high switching frequency of 65MHz. Dynamic Voltage Scaling (DVS) is supported by the regulator supplying the processor core.
Feature
- 5 buck converters:
- 3 general-purpose LDOs
- LDO for DDR Reference Voltage (DVREF)
- LDO for Secure Non-Volatile Storage (SNVS)
- LDO for Low-Power State Retention (LPSR)
- LDO for SD Card with dedicated enable terminal
- LDO for SD Card Interface with dedicated terminal to dynamically change output voltage
- White LED Boost Converter
- Single-cell Linear LIB Charger with 30V OVP
- Voltage Measurement for Thermistor
- Embedded Coulomb Counter for Battery Fuel Gauging
- Battery Monitoring and Alarm Output
- Real Time Clock with 32.768kHz crystal oscillator
- 1 GPO Open Drain or CMOS Output Selectable)
- Power Control I/O
- 1 LED Indicator
- I²C interface
