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參數(shù)資料
| 型號： | AT1117-50Y |
| 廠商： | Aimtron Technology Corp. |
| 英文描述： | 1A Low Dropout Fast Response Positive Adjustable Regulator |
| 中文描述： | 1A低壓差快速反應(yīng)積極可調(diào)穩(wěn)壓器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 278K |
| 代理商： | AT1117-50Y |
AT1117
Preliminary Product Information
1A Low Dropout Fast Response
Positive Adjustable Regulator
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email:
service@aimtron.com.tw
1
Features
Guaranted Output Voltage Accuracy within 2%
Fast Transient Response
Guaranteed Dropout Voltage at Multiple
Currrents
Load Regulation : 0.1% Typ.
Line Regulation : 0.03% Typ.
Low Dropout Voltage : 1.1V Typ. at I =1A
Trimmed Current Limit : 1A Typ. at T
j
=125
℃
On-Chip Thermal Limiting : 150
℃
Typ.
Adjustable Output : 1.25~7.75V
Standard 3-pin TO-252 , SOT-223 Power Pack-
ages
Applications
Active SCSI Terminators
Low Voltage Logic Supplies
Battery-Powered Circuitry
Post Regulator for Switching Power Supply
General Description
The AT1117 is a low dropout three-terminal
adjustable regulators with 1A output current
capability. In order to obtain lower dropout voltage
and faster transient response, which is critical for
low voltage applications, the AT1117 has been
optimized. The device is available in an adjustable
version and fixed output voltages of 1.8V, 2.5V,
2.85V, 3.3V and 5V, the output available voltage
range is from 1.25~7.75V with an input supply
below 9V. Dropout voltage is guaranteed at a
maximum of 1.2V at 1A.Current limit is trimmed
to ensure specified output current and controlled
short-circuit current. On-chip thermal limiting
provides protection against any combination of
overload that would create excessive junction
temperatures. The AT1117 is available in the
industry standard 3-pin TO-252 the low profile
surface mount SOT-223 power packages which
can be used in applications where space is limited.
Block Diagram
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