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UC385TDKTTT-3 PDF预览

UC385TDKTTT-3

更新时间： 2024-02-29 03:53:08
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
13页 264K
描述
FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR

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中文翻译

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UC385TDKTTT-3 数据手册

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SLUS212E − NOVEMBER 1999 − REVISED FEBRUARY 2004  
5-PIN TO-220  
D
Fast Transient Response  
T PACKAGE (TOP VIEW)  
D
D
D
10-mA to 5-A Load Current  
Short Circuit Protection  
Maximum Dropout of 500-mV at 5-A Load  
Current  
D
Separate Bias (VB) and VIN Pins  
D
Available in Adjustable or Fixed Output  
Voltages  
D
D
5-Pin Package Allows Kelvin Sensing of  
Load Voltage  
5-PIN TO-263  
TD PACKAGE  
(TOP VIEW)  
Reverse Current Protection  
Note: Tab = Ground  
description  
The UC385 is a low dropout linear regulator providing a quick response to fast load changes. Combined with  
its precision onboard reference, the UC385 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 490 mV maximum and 350 mV typical at 5-A load (0°C to 100°C).  
The onboard bandgap reference is stable with temperature and scaled for a 1.2 V input to the internal power  
amplifier. The UC385 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  
VB  
1
R1  
R2  
UC382−ADJ  
OPEN  
2 kΩ  
2 kΩ  
0
UC382−1 (1.5 V)  
UC382−2 (2.1 V)  
UC382−3 (2.5 V)  
500 Ω  
1.5 k  
Ω
2.16 k  
Ω
2 k  
Ω
THERMAL  
SHUTDOWN  
2
VIN  
1.2 V  
BANDGAP  
REFERENCE  
+
SHORT  
CIRCUIT  
SENSE  
R2  
R1  
3
5
4
GND  
ADJ  
VOUT  
UDG-00084  
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.  
All trademarks are the property of their respective owners.  
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Copyright 1998−2004, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...13

中文翻译

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UC385TDKTTT-3 替代型号

型号 品牌 替代类型 描述 数据表
UC385TDTR-3G3 TI

类似代替

 Fast Transient Response, 5-A, Low-Dropout Regulator 5-DDPAK/TO-263 0 to 70
UC385TDTR-3 TI

类似代替

 FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR

与UC385TDKTTT-3相关器件

型号 品牌 获取价格 描述 数据表
UC385TDKTTT-ADJ TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC385TDTR-1 TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC385TDTR-1G3 TI

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 		Fast Transient Response, 5-A, Low-Dropout Regulator 5-DDPAK/TO-263 0 to 70
UC385TDTR-2 TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC385TDTR-3 TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC385TDTR-3G3 TI

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 		Fast Transient Response, 5-A, Low-Dropout Regulator 5-DDPAK/TO-263 0 to 70
UC385TDTR-ADJ TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC385TDTR-ADJE3 TI

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 		1.2 V-6V ADJUSTABLE POSITIVE LDO REGULATOR, 0.49V DROPOUT, PSSO5, GREEN, PLASTIC, TO-263,
UC385TH-ADJ TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR
UC385-X TI

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 		FAST TRANSIENT REPONSE 5-A LOW-DROPOUT REGULATOR

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