参数资料
型号: AME1117DCGT
厂商: AME, Inc.
元件分类: 基准电压源/电流源
英文描述: 5.0 AMP POSITIVE VOLTAGE REGULATOR
中文描述: 5.0放大器正电压稳压器
文件页数: 1/15页
文件大小: 128K
代理商: AME1117DCGT
Analog Microelectronics, Inc.
1
AME1117
1A Low Dropout Positive
Voltage Regulator
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Typical Application
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General Descriptions
The AME1117 is a 1A low-dropout positive voltage regu-
lator. It is available in fixed and adjustable output
voltage versions. Overcurrent and thermal protection
are integrated onto the chip. Output current will limit
as while it reaches the pre-set current or temperature
limit. The dropout voltage is specified at 1.4V Maxi-
mum at full rated output current. The AME1117 series
provides excellent regulation over line, load and tem-
perature variations.
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Applications
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High Efficiency Linear Regulators
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5V to 3.3V Voltage Converter
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Battery Charger
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Post Regulators for Switching Supplies
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Functional Block Diagram
Figure 1
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Key Features
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Low dropout voltage ..............1.2V at 1A
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Adjustable or fixed voltages 2.5V, 3.3V, 5.0V
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Typical line regulation ....... 0.2%
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Typical load regulation ...... 0.15%
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Adjust pin current less than 90
μ
A
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Overcurrent protection
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Thermal protection
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Available in TO-220, TO-252, SOT-223
Input range depends on V
OUT
Please refer to electrical characteristics.
Figure 2
Thermal
Protection
Bandgap
Reference
Current
Limiting
Amplifier
Input
Output
ADJ/COM
Error
Amp.
10
μ
F Tan
4.75V to 12V
Load
10
μ
F Tan
AME1117
GND
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