Wolfson says PMIC delivers highest current

Edinburgh, U.K. – Wolfson Microelectronics plc is sampling what it says is the highest current monolithic power management IC (PMIC), which is aimed at portable multimedia applications, including smartbooks, tablets, e-books, media players and smartphones.

The WM8325 features four programmable DC-DC converters, including one which is capable of delivering up to 2.5A; and eleven LDO regulators, four of which are low-noise for supplying sensitive analog subsystems. Its optimized QFN package is designed to improve thermal performance and reduce parasitic components, enabling low-cost four-layer printed circuit board (PCB) manufacturing. The package allows large PCB tracks for all high current paths, which improves transient performance. All this in conjunction with its low thermal resistance (24oC/W), lower electrical resistance, and improved DC-DC technology, ensures that the WM8325 delivers greater than 5% improvement in efficiency (at 1A) when compared with previous generations of PMIC DC-DC converters.

 Key highlights:

• 
  
• 1 x DC-DC synchronous buck converter
  (0.6V - 1.8V, 2.5A, DVS)
• 1 x DC-DC synchronous buck converter
  (0.6V - 1.8V, 1.25A, DVS)
• 2 x DC-DC synchronous buck converters
  (0.85V - 3.4V, 1A)
• 1 x LDO regulator (0.9V - 3.3V, 300mA, 1W)
• 2 x LDO regulators (0.9V - 3.3V, 200mA, 1W)
• 3 x LDO regulators (0.9V - 3.3V, 100mA, 2W)
• 2 x Low-noise LDO regulators (1.0V - 3.5V, 200mA, 1W)
• 2 x Low-noise LDO regulators (1.0V - 3.5V, 150mA, 2W)
• 1 x ‘Alive’ regulator (0.8V – 1.55V, up to 10mA)
• I2C or SPI compatible primary control interface
• Comprehensive interrupt scheme
• Watchdog timer and system reset control
• Autonomous power sequencing and fault detection
• OTP memory bootstrap configuration function

Pricing: $6.59 in 1K volume.

Availability: Sampling now in an 8x8mm, 0.85 mm thick, 81-lead QFN package. WM8325 customer evaluation boards are available to aid device evaluation and development.

Datasheet: Click here.