DA9068中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

General Description

DA9068 is a power management IC (PMIC) optimized for supplying systems with multi-core CPUs,

I/O, DDR memory, and peripherals.

DA9068 contains an integrated Power Management Controller (PMC) for multiple power supplies

(programmable LDO regulators and buck converters). DA9068 features a programmable power

sequencer that handles start-up and shut-down sequences. Power mode transitions can be triggered

with software control, GPIOs, or with the on-key. Several types of on-key presses can be detected to

trigger different power-mode transitions.

All 25 linear regulators use Dialog’s SmartMirror? dynamic biasing technique which maintains high

performance over a wide range of operating conditions and a power saving mode to minimize the

quiescent current. The regulators have output voltages programmable via the device control

interface.

The eight buck converters do not require external Schottky diodes and offer a power saving mode

(PFM mode) for optimal light load efficiency. The DC-DC converters use either 2 MHz or 3 MHz

switching frequency giving high efficiency and allowing the use of small external inductors (down to

1 μH).

Dynamic voltage control (DVC) allows supply voltages of DA9068 to be controlled dynamically

according to the operating point of the system. The control can be realized via direct register writes

through the I2C interface or via GPIOs.

The real-time clock (RTC) with an external crystal oscillator provides time-keeping and alarm

functions. In addition, a watchdog timer is included for system monitoring purposes.

Furthermore, DA9068 contains a general purpose 12-bit analog-to-digital converter (GPADC) and

general purpose I/O pins (GPIO). These modules are implemented to support functions such as

battery voltage supervision and device over-temperature protection.

DA9068 can be completely controlled from the host by software writes to registers, which brings high

flexibility to the design of applications.

Key Features

■ Input voltage 2.8 V to 4.5 V

■ Eight buck converters with dynamic voltage

control

□ 2 x 4000 mA Dual-Phase

□ 1 x 1500 mA

□ 1 x 1000 mA

□ 3 x 600 mA

□ 1 x 1000 mA

■ 25 LDO regulators

□ 8 x 150 mA

□ 6 x 200 mA

□ 8 x 300 mA

□ 3 x 400 mA

■ Programmable power-mode sequencer

■ System supply and junction temperature

monitoring

■ 12-bit general purpose ADC

■ Coin cell or super-capacitor charger

■ Ultra-low-power real-time clock with alarm

■ 32 kHz oscillator with an external crystal

■ -30 °C to +85 °C temperature range

■ WLCSP, 4 mm x 6 mm, 0.4 mm pitch