100 Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter

General Description The MAX887 high-efficiency, step-down DC-DC converter provides an adjustable output from 1.25V to 10.5V. It accepts inputs from 3.5V to 11V and delivers 600mA. Operation to 100 duty cycle minimizes dropout voltage (300mV typ at 500mA). Synchronous rectification reduces outpu

文件：146.21 Kbytes 页数：12 Pages

Maxim

美信

100%占空比、低噪声、降压型、PWM DC-DC转换器

MAX887高效、降压型DC-DC转换器提供1.25V至10.5V的可调输出。它接受3.5V至11V的输入并提供600mA输出电流。以100%占空比运行可有效减少压差电压（500mA时典型值为300mV）。同步整流可降低输出整流器损耗，从而使效率高达95%。\n\n 固定频率脉宽调制(PWM)可降低敏感通信应用中的噪声。由于采用了高频内部振荡器，因而可使用微型表面贴装元件来减少电路板面积，并消除音频干扰。SYNC输入允许与外部时钟同步，以避免干扰敏感的RF和数据采集电路。\n\n MAX887具有电流模式，可提供出色的负载/线路瞬态响应。逐周期电流限制可保护 • 95%效率\n\n• 输出电流：600mA\n\n• 逐周期电流限制\n\n• 低压差、100%占空比运行、500mA时为300mV\n\n• 内部0.6Ω（典型值）MOSFET\n\n• 内部同步整流器\n\n• 高频电流模式PWM\n\n• 外部同步或内部300kHz振荡器\n\n• 保证260kHz至340kHz的内部振荡器频率限制\n\n• 2.5µA关断模式;

ADI

亚德诺

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信

Low-Dropout, 120mA Linear Regulators

General Description The MAX8873T/S/R and MAX8874T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portab

文件：115.54 Kbytes 页数：8 Pages

Maxim

美信