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 MAX1714A 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.

• MAX1425 - 10位、20Msps ADC
• MAX8868 - 低噪声、低压差、150mA线性稳压器，SOT23封装
• MX7248 - 完备的12位、电压输出乘法DAC
• MAX1497 - 3位半和4位半、单片ADC，带有LED驱动器和µC接口
• MAX11142 - 500ksps、低功耗、串行12/10/8位、4/8/16通道ADC
• MAX917 - SOT23封装、1.8V、纳安级功耗、超摆幅比较器，带或不带电压基准
• DS1307 - 64 x 8、串行、I²C实时时钟
• MAX1681 - 125mA、频率可选、开关电容电压变换器
• MAX9389 - 差分8:1 ECL/PECL多路复用器，带有双输出缓冲器
• MAX9370 - LVTTL/TTL至差分LVPECL/PECL转换器