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EMK316BJ105KL 参数 Datasheet PDF下载

EMK316BJ105KL图片预览
型号: EMK316BJ105KL
PDF下载: 下载PDF文件 查看货源
内容描述: 低压差输出电压稳压器 [Low Drop Output Voltage Regulator]
分类和应用: 稳压器
文件页数/大小: 6 页 / 366 K
品牌: AUK [ AUK CORP ]
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S52xxM  
Electrical Characteristic Curves (Cont.)  
Fig. 7.  
Fig. 8  
Shutdown (Dis/Enable) Operation  
The S52xxM output can be turned off by applying 0.4V or less to the device’s Dis/Enable  
pin (pin3). In shutdown mode, the S52xxM draws less than 1uA quiescent current. The  
output of the S52xxM is enabled by applying 1.5V to 13V at the Dis/Enable pin. In  
applications were the S52xxM output will always remain enabled, the Dis/Enable pin may  
be connected to Vin(pin1). The S52xxM’s shutdown circuitry includes hysteresis, as such  
the device will operate properly even if a slow moving signal is applied to the Dis/Enable  
pin. The device’s shutdown pin includes a 2Minternal pull down resistor connected to  
ground.  
Short Circuit Protection  
The S52xxM output can withstand momentary short circuit to ground. Moreover, the  
regulator can deliver very high output peak current due to its 1A instantaneous short circuit  
current capability.  
Noise Bypass Capacitor  
In low noise applications, the self noise of the S52xxM can be decreased further by  
connecting a capacitor from the noise bypass pin (pin4) to ground (pin2). The noise bypass  
pin is a high impedance node as such care should be taken in printed circuit board layout to  
avoid noise pick-up from external sources. Moreover, the noise bypass capacitor should  
have low leakage. Noise bypass capacitors with a value as low as 470pF may be used.  
However, for optimum performance, use a 0.01uF or larger, ceramic chip capacitor. Note  
that the turn on and turn off response of the S52xxM is inversely proportional to the value  
of the noise bypass capacitor. For fast turn on and turn off, use a small value noise Bypass  
capacitor. In applications were exceptionally low output noise is not required, consider  
omitting the noise Bypass capacitor altogether.  
KSI-2012-006  
5