描述 Description

The RAA270000KFT is a general purpose Power Management IC (PMIC), and suitable for RENESAS’

microcontroller RH850 series. The features and detail information of the PMIC are described in this

document.

The PMIC contains two current mode DCDC converters, four low dropout linear regulators (LDO) and two

linear trackers. The switching frequency of DCDC is typical 2.1MHz.

In order to monitor internal status, monitor function is implemented. The input voltage, output of all

regulators, and internal analog voltage corresponding to temperature are monitored through ADC in

microcontroller. For testing ADC in microcontroller, reference voltage can be monitored as well.

Since this PMIC includes a power-up/down sequence controller, it allows user not to build external

sequence circuit.

特性 Features

? Input range: 6.0V to 18.5V to perform specified characteristics.

5.4V~: Power rails, 5V/3.3V/1.25V and trackers functional (Not detect low voltage)

3.9V~: Not issues reset.

? 2 switching regulators,

For point of load: 5.7V/1000mA

For MCU core: 1.25V/700mA

? 4 linear regulators,

For MCU : 3.3V/10mA, 5.0V/300mA, 3.3V/160mA, 5.0V/60mA

? 2 linear trackers,

150mA ability with short protection to battery

? Automatic power sequence

? Watchdog timer

? Analog multiplexer

? Interrupt request

? Thermal shut down

? Reset generator

? Exposed die pad, QFP package, 64pin 12mm x 12mm