DA9061-A中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

General Description

DA9061-A is a power management integrated circuit (PMIC) optimized for supplying systems with

single- and dual-core processors, I/O, DDR memory, and peripherals. It targets car navigation,

vehicle infotainment systems, automotive telematics and FPGA based applications.

DA9061-A features three buck converters providing a total current of 6 A. High efficiency is achieved

over a wide load range with PFM mode available for low power or sleep modes. All power switches

are integrated; therefore, external Schottky diodes are not required. Furthermore, low-profile

inductors can be used with DA9061-A. The four LDO regulators with programmable output voltage

provide up to 300 mA.

Dynamic voltage control (DVC) allows dynamic control of DA9061-A supply voltages according to the

operating point of the system. It is controlled by writing directly to the registers using the I

2C

compatible 2-wire interface or the GPIOs.

DA9061-A features a programmable power sequencer that handles start-up and shutdown

sequences. Power mode transitions can be triggered with software control, GPIOs, or with the onkey. Several types of on-key presses can be detected to trigger different power mode transitions.

An integrated watchdog timer monitors the system.

Five GPIOs are able to perform system functions, including: keypad supervision, application buck,

and timing-controlled external regulators/power switches or other ICs.

DA9061-A is also available as a consumer and industrial version DA9061.

Key Features

■ Input voltage 2.8 V to 5.5 V

■ Three buck converters with dynamic voltage

control:

□ Buck1: 0.3 V to 1.57 V, 2.5 A

□ Buck2: 0.8 V to 3.34 V, 2 A

□ Buck3: 0.53 V to 1.8 V, 1.5 A

□ 3 MHz switching frequency (enables low

profile inductors)

■ Four LDO regulators:

□ LDO1: 0.9 V to 3.6 V, 100 mA

□ LDO2, LDO3, LDO4: 0.9 V to 3.6 V,

300 mA

■ Programmable power mode sequencer

■ System supply and junction temperature

monitoring

■ Watchdog timer

■ Five GPIOs

■ -40 °C to +125 °C junction temperature range

■ 40-pin QFN, 6 mm × 6 mm package, 0.5 mm

pitch

■ Automotive AEC-Q100 Grade 2 (-40 °C to

105 °C)