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參數(shù)資料
| 型號(hào)： | UC1-3 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3A Fixed Low Dropout Linear Regulator (LDO) |
| 中文描述： | 3A固定低壓差線性穩(wěn)壓器（LDO） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 184K |
| 代理商： | UC1-3 |
UC182-1,-2,-3,-ADJ
UC282-1,-2,-3,-ADJ
UC382-1,-2,-3,-ADJ
SLUS317 - J ANUARY 1999
FEATURES
Fast Transient Response
10mA to 3A Load Current
Short Circuit Protection
Maximum Dropout of 450mV at 3A
Load Current
Separate Bias and VIN Pins
Available in Adjustable or Fixed
Output Voltages
5 Pin Package allows Kelvin Sensing
of Load Voltage
Reverse Current Protection
DESCRIPTION
The UC382 is a low dropout linear regulator providing a quick response to
fast load changes. Combined with its precision on-board reference, the
UC382 excels at driving GTL and BTL buses. Due to its fast response to
load transients, the total capacitance required to decouple the regulator’s
output can be significantly decreased when compared to standard LDO lin-
ear regulators.
Dropout voltage (VIN to VOUT) is only 450mV maximum at 100°C and
350mV typical at 3A load.
The on-board bandgap reference is stable with temperature and scaled for
a 1.200V input to the internal power amplifier. The UC382 is available in
fixed output voltages of 1.5V, 2.1V, or 2.5V. The output voltage of the adjust-
able version can be set with two external resistors. If the external resistors
are omitted, the output voltage defaults to 1.2V.
Fast LDO Linear Regulator
BLOCK DIAGRAM
UDG-96037-1
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