Power Electronics / Power Management


Efficient power management controllers for notebooks

17 October 2007 Power Electronics / Power Management

ON Semiconductor has expanded its computing products portfolio with the introduction of three new power controllers, specifically designed to meet the efficiency requirements of notebook PCs. The NCP5371, NCP5218, and NCP5215 controllers address the notebook power subsystem needs for Vcore, DDR memory, and CPU chipsets respectively.

The NCP5371 is a 2-phase, dual-edge Vcore controller, specifically designed to support notebook mobile processor power delivery requirements. The current-mode variable-frequency architecture provides ultra fast dynamic response with virtually no overshoot for dynamic loads and dynamic VID changes. Automatic variable frequency operation during light load conditions provides high subsystem efficiency and fast transient response out of light load operation. The device includes gate drivers that are optimised for large Qg low-side MOSFETs, further improving overall subsystem efficiency.

The NCP5218 is a 2-in-1 power controller, specifically designed as a total solution for notebook DDR memory subsystems. This device combines the efficiency of a PWM controller for the VDDQ supply, with the simplicity of a linear regulator for the VTT supply. The high bandwidth VTT regulator requires only a 20 μF ceramic output capacitor. A power saving mode for light load conditions improves subsystem efficiency. The inclusion of VDDQ power good voltage monitoring, VDDQ over-current, over-voltage, and under-voltage protection, supply under-voltage monitoring, soft-start, and thermal shutdown make this device a total power solution for high current DDR memory subsystems.

The NCP5215 is a dual-channel buck controller, specifically designed for notebook chipsets. A programmable power-saving mode delivers high efficiency of greater than 90% over the entire load range. The 180° interleaved operation reduces input capacitance requirements, while the programmable Adaptive Voltage Position reduces output capacitance requirements.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Adaptive optics’ power solution
Altron Arrow Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.

Read more...
Reliable power solution
Conical Technologies Power Electronics / Power Management
The Mibbo MLD-120W-xxVx is a robust DIN-rail mounted DC-DC converter with a 120 W output capacity specifically designed for industrial and automation applications.

Read more...
Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.

Read more...
First NVMe SSD Built with 8th-gen BiCS FLASH
EBV Electrolink Computer/Embedded Technology
KIOXIA recently announced the development and prototype demonstration of its new KIOXIA CM9 Series PCIe 5.0 NVMe SSDs, which incorporates CMOS directly Bonded to Array technology.

Read more...
Wide input voltage buck-boost converter
Altron Arrow Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.

Read more...
IMU with dual-sensing capability
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.

Read more...
High-density power module for AI at the edge applications
Altron Arrow Power Electronics / Power Management
The MCPF1412 power module from Microchip has integrated I2C and PMBus interfaces for flexible configuration and monitoring.

Read more...
When it comes to long-term reliability of RF amplifier ICs, focus first on die junction temperature
Altron Arrow Editor's Choice Telecoms, Datacoms, Wireless, IoT
When considering the long-term reliability of integrated circuits, a common misconception is that high package or die thermal resistance is problematic. However, high or low thermal resistance, by itself, tells an incomplete story.

Read more...
High-performance processor for edge-AI
Altron Arrow DSP, Micros & Memory
The STM32MP23 microprocessor from STMicroelectronics is the latest addition to the STM32MP2 series, designed to meet the demands of industrial, IoT, and edge AI applications.

Read more...
Development kit for TI’s SN6507
Power Electronics / Power Management
This comprehensive solution is designed to help engineers evaluate the performance of TI’s SN6507 transformer driver for isolated power supplies.

Read more...