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PTH08000WAZT

更新时间： 2024-11-07 01:07:27
品牌 Logo 应用领域
德州仪器 - TI 输入元件开关
页数 文件大小 规格书
20页 622K
描述
2.25-A, WIDE INPUT, ADJUSTABLE SWITCHING REGULATOR WITH AUTO-TRACK SEQUENCING

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PTH08000WAZT 数据手册

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PTH08000W  
www.ti.com  
SLTS248B–JUNE 2005–REVISED FEBRUARY 2008  
2.25-A, WIDE INPUT, ADJUSTABLE SWITCHING REGULATOR  
WITH AUTO-TRACK™ SEQUENCING  
1
FEATURES  
•
Safety Agency Approvals:  
UL/CUL 60950, EN60950  
2
•
Up to 2.25-A Output Current at 85°C  
•
•
4.5-V to 14-V Input Voltage Range  
APPLICATIONS  
Wide-Output Voltage Adjust  
(0.9 V to 5.5 V)  
•
Telecommunications, Instrumentation,  
and General-Purpose Circuits  
•
•
•
•
Efficiencies Up to 94%  
On/Off Inhibit  
Undervoltage Lockout (UVLO)  
Output Overcurrent Protection  
(Nonlatching, Auto-Reset)  
•
•
•
Overtemperature Protection  
Ambient Temperature Range: –40°C to 85°C  
Surface-Mount Package  
DESCRIPTION  
The PTH08000W is a highly integrated, low-cost switching regulator module that delivers up to 2.25 A of output  
current. The PTH08000W sources output current at a much higher efficiency than a TO-220 linear regulator IC,  
eliminating the need for a heatsink. The small size (0.75 inch × 0.5 inch) and flexible operation creates value for  
a variety of applications.  
The input voltage range of the PTH08000W is 4.5 V to 14 V, allowing operation from either a 5-V or 12-V input  
bus. Using state-of-the-art switched-mode power-conversion technology, the PTH08000W can step down to  
voltages as low as 0.9 V from a 5-V input bus, with less than 1 W of power dissipation. The output voltage can  
be adjusted to any voltage over the range, 0.9 V to 5.5 V, using a single external resistor. This series includes  
Auto-Track™ sequencing. This feature simplifies the task of supply voltage sequencing in a power system by  
enabling modules to track each other, or any external voltage, during power up and power down. Operating  
features include an undervoltage lockout (UVLO), on/off inhibit, overcurrent protection, and overtemperature  
protection. Target applications include telecommunications, test and measurement applications, and high-end  
consumer products. This product is available in both through-hole and surface-mount package options, including  
tape and reel. The PTH08000W is compatible with TI's roadmap for RoHS and lead-free compliance.  
STANDARD APPLICATION  
V
O
1
2
3
4
6
Track  
PTH08000W  
(Top View)  
V
I
C *  
100 µF  
(Optional)  
O
+
C *  
100 µF  
(Required)  
5
I
+
R
#
Inhibit  
GND  
SET  
1%, 0.05 W  
(Required)  
GND  
* See the Application Information section for capacitor recommendations.  
# See the Application Information section for RSET values.  
1
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.  
2
Auto-Track, POLA, TMS320 are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005–2008, Texas Instruments Incorporated  
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PTH08000WAZT 替代型号

型号 品牌 替代类型 描述 数据表
PTH08000WAZ TI

完全替代

 2.25-A, WIDE INPUT, ADJUSTABLE SWITCHING REGULATOR WITH AUTO-TRACK SEQUENCING
PTH08000WAST TI

完全替代

 2.25-A, WIDE INPUT, ADJUSTABLE SWITCHING REGULATOR WITH AUTO-TRACK SEQUENCING
PTH08000WAS TI

完全替代

 2.25-A, WIDE INPUT, ADJUSTABLE SWITCHING REGULATOR WITH AUTO-TRACK SEQUENCING

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