High-Speed Step-Down Controller for Notebook ComputersLow-Cost, Ultra-Fast, 1%-Accurate Controllers Power Next-Generation Notebook CPU Core and I/O
Description
The MAX1714 pulse-width modulation PWM controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low-voltage CPU core or chip-set/RAM supplies in notebook computers.
Maxim"s proprietary Quick-PWM quick-response, constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency.
The MAX1714 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous-rectifier MOSFETs.
Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, two-stage conversion stepping down the +5V system supply instead of the battery at a higher switching frequency allows the minimum possible physical size.
The MAX1714 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 1V. The is available in a 20-pin QSOP package and includes overvoltage protection. The MAX1714B is available in a 16-pin QSOP package with no overvoltage protection. For applications requiring VID compliance or DAC control of output voltage, refer to the MAX1710/MAX1711 data sheet. For a dual output version, refer to the MAX1715 data sheet.
型号 | 品牌 | 下载 |
---|---|---|
MAX1714A | Maxim Integrated 美信 | 下载 |
MAX14515EWA+T | Maxim Integrated 美信 | 下载 |
MAX1474AXT+T | Maxim Integrated 美信 | 下载 |
MAX1329BETL+ | Maxim Integrated 美信 | 下载 |
MAX1329BETL+T | Maxim Integrated 美信 | 下载 |
MAX125CEAX | Maxim Integrated 美信 | 下载 |
MAX19790ETX+ | Maxim Integrated 美信 | 下载 |
MAX19790ETX+T | Maxim Integrated 美信 | 下载 |
MAX19794ETX+ | Maxim Integrated 美信 | 下载 |
MAX13047EEVB+T | Maxim Integrated 美信 | 下载 |
MAX13035EETE+ | Maxim Integrated 美信 | 下载 |