MIC38C44BM MIC38C44BM 的参数 |
电路数量
Number of Regulators |
|
输入电压VIN
Voltage - Input |
9V |
输出电压VOUT
Voltage - Output |
5V |
输出电流Io
Current - Output |
500mA/0.5A |
最大压降VDO
Voltage - Dropout |
|
带使能脚EN/CE(ON/OFF功能)
With Enable Pin |
|
最大耗散功率Pd
Power dissipation |
|
Description & Applications |
BiCMOS Current-Mode PWM Controllers ;FEATURES ?BiCMOS Current-Mode PWM Controllers ? Fast 40ns output rise and 30ns output fall times ? –40°C to +85°C temperature range meets UC284x speci?cations ? High-performance, low-power BiCMOS Process ? Ultralow start-up current (50μA typical) ? Low operating current (4mA typical) ? CMOS outputs with rail-to-rail swing ? ≥ 500kHz current-mode operation ? Trimmed 5V bandgap reference ? Pin-for-pin compatible with UC3842/3843/3844/3845(A) ? Trimmed oscillator discharge current ? UVLO with hysteresis ? Low cross-conduction currents Applications ? Current-mode, off-line, switched-mode power supplies ? Current-mode, dc-to-dc converters. ? Step-down “buck” regulators ? Step-up “boost” regulators ? Flyback, isolated regulators ? Forward converters ? Synchronous FET converters |
描述与应用 |
BiCMOS电流模式PWM控制器;特点 ?BiCMOS电流模式PWM控制器 ?快速40ns的输出上升和30ns的输出下降时间 ?-40°C至+85°C温度范围内符合规格UC284x ?高性能,低功耗的BiCMOS工艺 ?超低启动电流(50μA典型) ?低工作电流(典型值4毫安) ?CMOS输出轨至轨摆动 ?≥500kHz电流模式操作 ?修剪5V带隙基准 ?引脚对引脚兼容UC3842/3843/3844/3845(A) ?修剪振荡器放电电流 ?UVLO迟滞 ?低交叉传导电流 应用 ?电流模式,离线开关模式电源 ?电流模式的DC-DC转换器。 ?降压降压稳压器 ?步骤“助推”监管机构 ?反激,隔离器 ?正向转换器 ?同步FET转换器 |
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