Active Semi


Advanced PMU for Microcontrollers and Solid State Drive Applications

Topologie: Buck
Eingangsspannung (min.): 2.80 V
Eingangsspannung (max.): 5.50 V
Schaltfrequenz (min.): 1125.00 kHz
Schaltfrequenz (max.): 2250.00 kHz
Ausgang 1: 1.25 V / 2.500 A
Ausgang 2: 3.30 V / 2.500 A
Ausgang 3: 1.50 V / 2.500 A


The ACT8870 PMIC is an integrated ActivePMU powermanagement unit. It is designed to power a wide rangeof processors, including Atmel’s SAMA5D2, FPGA’s,peripherals, microcontrollers, and solid-state drive applications.It is highly flexible and can be reconfiguredvia I2C for multiple applications without the need forPCB changes. The low external component count andhigh configurability significantly speeds time to market.Examples of configurable options include output voltage,startup time, slew rate, system level sequencing,switching frequency, sleep modes, operating modes etc.ACT8870 is programmed at the factory with default configuration.These settings can be optimized for a specificdesign through the I2C interface. The ACT8870 comesin several default configuration. Contact the factory forspecific default configurations.The core of the device includes four DC/DC step downconverters using integrated power FETs, three lowdropoutregulators (LDOs), and an optional load switch.Each DC/DC regulator switches at 2.25MHz, requiringonly three small components for operation. The LDOsonly require small ceramic capacitors. All are highlyconfigurable via the I2C interface.The ACT8870 PMIC is available in a 5 x 5 mm 40 pinQFN package or a 3.2x4.2 mm 0.5mm 48 ball waferchip-scale package.


  • Wide input voltage rangeo Vin = 2.8V to 5.5V Complete integrated power solutiono One 4A DC/DC Step-Down (Buck)Regulatoro Three 2.5A DC/DC Step-Down(Buck) Regulatorso One 800mA LDOo Two 200mA LDOs Space Savingso Fully integratedo High Fsw =2.25MHz or 1.125MHzo Integrated sequencing Easy system level designo Configurable sequencingo Seamless sequencing with externalsupplies Buck 1 Bypass Mode for 3.3V system levelcompliance Highly configurableo uP interface for status reportingand controllabilityo Programmable Reset and PowerGood GPIO’so Flexible Sequencing Options I2C Interface – 1MHz


  Artikel Nr. SPEC Produktserie L
RDC typ.
RDC max.
Montageart Muster
74438356010 PDF WE-MAPI SMT-Speicherdrossel 1 7.2 9 12 15 55 SMT