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AIC1117A-50CY 参数 Datasheet PDF下载

AIC1117A-50CY图片预览
型号: AIC1117A-50CY
PDF下载: 下载PDF文件 查看货源
内容描述: 1A低压差正可调稳压器 [1A Low Dropout Positive Adjustable Regulator]
分类和应用: 稳压器
文件页数/大小: 8 页 / 139 K
品牌: AIC [ ANALOG INTERGRATIONS CORPORATION ]
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AIC1117A
1A Low Dropout Positive Adjustable Regulator
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FEATURES
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DESCRIPTION
The AIC1117A is a low dropout three terminal
regulator with 1A output current capability. The
output voltage is adjustable with the use of a
resistor divider or fixed 2.85V, 3.3V, 5V. Dropout
is guaranteed at a maximum of 1.5V at
maximum output current. Its low dropout voltage
and fast transient response make it ideal for low
voltage microprocessor applications. Internal
current and thermal limiting provides protection
against any overload condition that would create
excessive junction temperatures.
Dropout Voltage 1.3V at 1A Output Current.
Fast Transient Response.
Line Regulation typically at 0.015%.
Load Regulation typically at 0.1%.
Internal Thermal and Current Limiting.
Adjustable Output Voltage or Fixed 2.85V, 3.3V,
5V.
Standard 3-Pin Power Packages.
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APPLICATIONS
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Post Regulator for Switching Supply.
Active SCSI Termination.
Battery Chargers.
Constant-Current Regulators.
Motherboard Clock Supplies.
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TYPICAL APPLICATION CIRCUIT
V
IN
5V
C1 +
10
µ
F
3
AIC1117A
1 ADJ
2
V
REF
V
REF
=V
OUT
- V
ADJ
=1.25V (typ.)
V
OUT
3.3V
V
OUT
=V
REF
x (1+RF2/RF1)+ I
ADJ
x RF2
I
ADJ
=55µA (typ.)
(1) C1 needed if device is far away from filter
capacitors.
(2) C2 required for stability.
RF1
125
1%
+
C2
RF2
10
µ
F
205
1%
Adjustable Voltage Regulator
V
IN
5V
C1 +
10
µ
F
AIC1117A-33
V
OUT
3.3V
+
C2
10
µ
F
GND
Fixed Voltage Regulator
Analog Integrations Corporation
DS-1117A-00
May 21, 01
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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