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AIC1633-5CS 参数 Datasheet PDF下载

AIC1633-5CS图片预览
型号: AIC1633-5CS
PDF下载: 下载PDF文件 查看货源
内容描述: 2 ,细胞型,200mA ,升压型DC / DC转换器 [2-Cell, 200mA, Step-Up DC/DC Converter]
分类和应用: 转换器
文件页数/大小: 10 页 / 280 K
品牌: AIC [ ANALOG INTERGRATIONS CORPORATION ]
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AIC1633  
PIN DESCRIPTIONS  
AIC1633-30/ AIC1633-33 / AIC1633-50  
PIN 1: ILIM/SD- 1. Connected to VIN pin through  
a resistor to set the switch  
AIC1633A  
PIN 1:  
ILIM/SD- 1. Connected to VIN pin through  
a resistor to set the switch  
peak current. It serves to  
protect IC and inductor, as  
well as to improve efficiency  
and output ripples. However,  
the current limit resistor limits  
supply capability of the  
peak current. It serves to  
protect IC and inductor, as  
well as to improve efficiency  
and output ripples. However,  
the current limit resistor limits  
supply capability of the  
AIC1633A.  
(See  
typical  
AIC1633.  
(See  
typical  
performance characteristics).  
The ILIM/SD pin should be  
shorted to VIN pin if limiting  
on switch peak current is not  
intended.  
performance characteristics).  
The ILIM/SD pin should be  
shorted to VIN pin if limiting  
on switch peak current is not  
intended.  
2. The AIC1633A goes in  
2. The  
AIC1633  
goes  
in  
shutdown  
mode  
and  
shutdown  
mode  
and  
consumes less than 10µA  
when ILIM/SD pin is pulled to  
ground.  
consumes less than 10µA  
when ILIM/SD pin is pulled to  
ground.  
PIN 2: VIN - Input supply.  
PIN 3: SW - Drain of the power switch, to be  
connected to inductor/ diode.  
PIN 4: GND - Ground.  
PIN 5: FB  
PIN 2: VIN  
PIN 3: SW  
-
-
Input supply.  
Drain of the power switch, to be  
connected to inductor/ diode.  
PIN 4:SGND - Ground connected to source of  
power switch.  
PIN 5:CGND - Ground for control circuits of the  
IC. It should be separated from  
SGND to avoid the interference.  
- Output voltage can either be  
internally set to  
5
volt by  
grounding FB pin, or be externally  
set to an arbitrary voltage by  
applying to FB pin the divider  
voltage of two divider resistors.  
PIN 6:LBO  
-
Open drain output of the battery  
low detector, with 45“ON  
resistance” at VIN=2V. It is pulled  
low when the voltage on LBI pin  
is below 1.22V.  
VOUT voltage is given by the  
following equation:  
PIN 7:LBI  
-
The noninverting input of the  
battery low detector, of which the  
inverting input is internally  
connects to 1.22V voltage  
reference.  
R1 VOUT  
R2 0.617  
=
1  
where R1 = Resistor connected  
between FB pin and VOUT pin.  
R2 = Resistor connected between  
FB pin and ground.  
PIN 8:VOUT - The output voltage feedbacks to  
the IC through this pin.  
VOUT=Output voltage to be set.  
PIN 6: LBO - Open drain output of the battery  
low detector, with 45“ON  
resistance” at VIN=2V. It is pulled  
low when the voltage on LBI pin is  
below 1.22V.  
6