Intersil launches PMIC with 91% efficiency at 1.1V
- 著者:Ella Cai
- 公開：:2017-05-16
Intersil has introduced a PMIC that delivers 91% efficiency at 1.1V output voltage for application processors, GPUs, FPGAs and high-performance system power.
The PMIC’s low RDS(on) MOSFETs and programmable PWM frequency allows designers to use fewer low-profile external components, enabling a 50mm2 power-supply that is 40% smaller than competing solutions.
The ISL91211 triple/quad output PMIC is suitable for smartphones, tablet computers, solid-state drives, networking and wireless IoT devices powered by single-cell Li-on batteries, or 2.5V – 5.5V power supplies.
The ISL91211 leverages Intersil’s latest R5 modulation technology to provide fast single-cycle transient response and high switching frequency (4MHz) during load transients. Quiescent current is 62μA while the ISL91211 is regulating the output voltage.
The ISL91211 PMIC includes highly efficient synchronous buck converters capable of multiphase and single-phase operation while delivering up to 5A per phase of continuous output current.
The PMIC’s four integrated buck controllers dynamically reconfigure their power stages to address a wide range of applications with high efficiency and high output power. Precise current sensing allows the ISL91211 to automatically and smoothly add or drop phases to optimize power efficiency, and provide overcurrent protection without requiring DCR or resistor sensing circuits at the inductor.
The ISL91211 PMIC is available in two options: ISL91211A triple-output PMIC and ISL91211B quad-output PMIC supplied in 2.511mm x 3.610mm, 54-ball WLCSP packages. Both PMIC options are available now and priced at $3.90 USD in 1k quantities.
The PMIC’s low RDS(on) MOSFETs and programmable PWM frequency allows designers to use fewer low-profile external components, enabling a 50mm2 power-supply that is 40% smaller than competing solutions.
The ISL91211 triple/quad output PMIC is suitable for smartphones, tablet computers, solid-state drives, networking and wireless IoT devices powered by single-cell Li-on batteries, or 2.5V – 5.5V power supplies.
The ISL91211 leverages Intersil’s latest R5 modulation technology to provide fast single-cycle transient response and high switching frequency (4MHz) during load transients. Quiescent current is 62μA while the ISL91211 is regulating the output voltage.
The ISL91211 PMIC includes highly efficient synchronous buck converters capable of multiphase and single-phase operation while delivering up to 5A per phase of continuous output current.
The PMIC’s four integrated buck controllers dynamically reconfigure their power stages to address a wide range of applications with high efficiency and high output power. Precise current sensing allows the ISL91211 to automatically and smoothly add or drop phases to optimize power efficiency, and provide overcurrent protection without requiring DCR or resistor sensing circuits at the inductor.
The ISL91211 PMIC is available in two options: ISL91211A triple-output PMIC and ISL91211B quad-output PMIC supplied in 2.511mm x 3.610mm, 54-ball WLCSP packages. Both PMIC options are available now and priced at $3.90 USD in 1k quantities.
