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| 型號： | UC3823Q |
| 英文描述： | Rad-hard dual J-K flip flop with preset and clear |
| 中文描述： | 電流/電壓模式開關(guān)電源控制器 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 272K |
| 代理商： | UC3823Q |
SLUS317B JANUARY 2000 REVISED FEBRUARY 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Fast Transient Response
10-mA to 3-A Load Current
Short Circuit Protection
Maximum Dropout of 450-mV at 3-A 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 onboard 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 linear regulators.
Dropout voltage (VIN to VOUT) is only 450 mV maximum at 100
°
C and 350 mV typical at 3-A load.
The onboard bandgap reference is stable with temperature and scaled for a 1.2-V input to the internal-power
amplifier. The UC382 is available in fixed-output voltages of 1.5 V, 2.1 V, or 2.5 V. The output voltage of the
adjustable version can be set with two external resistors. If the external resistors are omitted, the output voltage
defaults to 1.2 V.
block diagram
+
THERMAL
SHUTDOWN
1.2 V
BANDGAP
REFERENCE
R2
R1
3
5
SHORT
CIRCUIT
SENSE
2
1
4
UC382ADJ
UC3821 (1.5 V)
UC3822 (2.1 V)
UC3823 (2.5 V)
OPEN
2 k
2 k
2 k
0
500
1.5 k
2.16 k
R1
R2
ADJ
GND
VOUT
VIN
VB
UDG-00080
Copyright
20002004, Texas Instruments Incorporated
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
5-PIN TO-263
TD PACKAGE
(TOP VIEW)
5-PIN TO-220
T PACKAGE (TOP VIEW)
Note: Tab = Ground
All trademarks are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3823QG3 | 功能描述:電流型 PWM 控制器 High Speed PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| UC3823QTR | 功能描述:電流型 PWM 控制器 High Speed PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| UC3823QTR/81015 | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| UC3823QTRG3 | 功能描述:電流型 PWM 控制器 High Speed PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| UC3824 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:High Speed PWM Controller |
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