1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8058 is a current mode PWM step-down converter. The chip is ideal for fixed frequency and low ripple applications over full range of load conditions. Its input voltage range is from 2.6V to 5.5V with a constant 1MHz switching frequency that allows it to adopt tiny, low c

文件：237.2 Kbytes 页数：15 Pages

RichTek

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1.2MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8058A is a current mode PWM step-down converter. The chip is ideal for fixed frequency and low ripple applications over full range of load conditions. Its input voltage range is from 2.6V to 5.5V with a constant 1.2MHz switching frequency that allows it to adopt tiny, lo

文件：285.88 Kbytes 页数：14 Pages

RichTek

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丝印：E9=**；Package：WDFN-103x3；1.2MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8058A is a current mode PWM step-down converter. The chip is ideal for fixed frequency and low ripple applications over full range of load conditions. Its input voltage range is from 2.6V to 5.5V with a constant 1.2MHz switching frequency that allows it to adopt tiny, lo

文件：285.88 Kbytes 页数：14 Pages

RichTek

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丝印：CB=**；Package：WQFN-163x3；1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8058 is a current mode PWM step-down converter. The chip is ideal for fixed frequency and low ripple applications over full range of load conditions. Its input voltage range is from 2.6V to 5.5V with a constant 1MHz switching frequency that allows it to adopt tiny, low c

文件：237.2 Kbytes 页数：15 Pages

RichTek

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丝印：CB-**；Package：WQFN-163x3；1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8058 is a current mode PWM step-down converter. The chip is ideal for fixed frequency and low ripple applications over full range of load conditions. Its input voltage range is from 2.6V to 5.5V with a constant 1MHz switching frequency that allows it to adopt tiny, low c

文件：237.2 Kbytes 页数：15 Pages

RichTek

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1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8059 is a high efficiency Pulse Width Modulated (PWM) step-down DC/DC converter, capable of delivering 1A output current over a wide input voltage range from 2.8V to 5.5V. The RT8059 is ideally suited for portable electronic devices that are powered by 1-cell Li-ion ba

文件：265.7 Kbytes 页数：10 Pages

RichTek

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1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter

General Description The RT8059 is a high efficiency Pulse Width Modulated (PWM) step-down DC/DC converter, capable of delivering 1A output current over a wide input voltage range from 2.8V to 5.5V. The RT8059 is ideally suited for portable electronic devices that are powered by 1-cell Li-ion ba

文件：265.7 Kbytes 页数：10 Pages

RichTek

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High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator

Features « Supply Voltage Range: 2.5V to 5.5V + Guaranteed 1A continuous load current « 2% 06V reference » Cycle-by-cycle peak current limitation Instant PWM architecture to achieve fast transient responses Internal softstart mits the inrush current «Current Limiting Protect

文件：3.80409 Mbytes 页数：7 Pages

TECHPUBLIC

台舟电子

3A, 2MHz 同步降压型 DC/DC 转换器

RT8055B为高效率的同步整流降压型DC/DC转换器，输入电压范围从2.6V至5.5V，输出可调范围0.8V至5V，输出电流至3A。内建的同步低导通阻的功率开关，增进了整体效率并减少了需要外加萧特基二极管的必要性。切换频率可由外部电阻进行设计。藉由近100%占空比的操作提供了低压差转换的应用可有效延长掌上型装置的电池使用寿命。电流模式操作与外部的补偿机制可因应大范围的输出电容与负载变化的瞬时响应进行优化的补偿。RT8055B强制操作在连续的PWM模式，大幅降低电压纹波值与RF噪声所造成的干扰。RT8055B采用WDFN-10L 3x3的封装规格。 • 效率达95% \n• 可设计的操作频率 : 300kHz 至 2MHz\n• 0.8V 的参考电压允许低电压输出\n• 100% 的占空比操作\n• 输出电压电源良好信号指示\n• 符合RoHS规范与无卤特性;

Richtek

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1A, 1.5MHz 双通道同步降压型 DC/DC 转换器

RT8056为高效率脉波宽度调变(PWM)的双通道同步降压型 DC/DC 转换器。输入范围2.8V 至5.5V时，输出电流可达1A。RT8056适用于由单一锂电池供电的可携式电子装置，例如移动电话、PDA、PC WLAN卡与掌上型装置。RT8056提供了两种操作模式:PWM/低压降自动切换模式与关机模式。内部的低R_DS(ON)同步整流元件降低了操作在PWM模式的的导通损耗，且不需外加萧特基二极管于实际设计中。RT8056当PWM操作时无法连续导通上端P-MOSFET时，进入低压降模式。当EN脚位为低电位时，进入关机模式，消耗电流小于0.1μA。由于操作在恒定频率1.5MH • 2.8V 至 5.5V 的输入电压范围\n• 2 x 1A输出电流\n• 不需外加萧特基二极管\n• 低压降操作 : 100% 的占空比\n• 符合RoHS规范与无卤特性;

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