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TPS70345-EP

更新时间： 2024-11-19 12:16:15
品牌 Logo 应用领域
德州仪器 - TI 稳压器输出元件
页数 文件大小 规格书
32页 937K
描述
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS

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TPS70345-EP 数据手册

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SGLS323A − JANUARY 2006 − REVISED MARCH 2006  
D
Controlled Baseline  
− One Assembly/Test Site, One Fabrication  
Site  
D
Open Drain Power Good for Regulator 1  
Ultralow 185 µA (typ) Quiescent Current  
2 µA Input Current During Standby  
D
D
D
D
D
D
D
D
Extended Temperature Performance of  
−55°C to 125°C  
Enhanced Diminishing Manufacturing  
Sources (DMS) Support  
Low Noise: 78 µV  
Capacitor  
Without Bypass  
RMS  
D
D
D
D
D
D
Quick Output Capacitor Discharge Feature  
Two Manual Reset Inputs  
Enhanced Product-Change Notification  
2% Accuracy Over Load and Temperature  
Undervoltage Lockout (UVLO) Feature  
24-Pin PowerPADTSSOP Package  
Thermal Shutdown Protection  
†
Qualification Pedigree  
Dual Output Voltages for Split-Supply  
Applications  
D
Selectable Power Up Sequencing for DSP  
Applications (See TPS704xx for  
Independent Enabling of Each Output)  
†
Component qualification in accordance with JEDEC and industry  
standards to ensure reliable operation over an extended  
temperature range. This includes, but is not limited to, Highly  
Accelerated Stress Test (HAST) or biased 85/85, temperature  
cycle, autoclave or unbiased HAST, electromigration, bond  
intermetallic life, and mold compound life. Such qualification  
testing should not be viewed as justifying use of this component  
beyond specified performance and environmental limits.  
D
D
D
D
Output Current Range of 1 A on  
Regulator 1 and 2 A on Regulator 2  
Fast Transient Response  
Output Voltages of 3.3−V/1.2−V  
Open Drain Power-On Reset With 120-ms  
Delay  
PWP PACKAGE  
(TOP VIEW)  
description  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
GND/HEATSINK  
GND/HEATSINK  
2
V
V
V
V
V
IN1  
IN1  
OUT1  
The TPS70345 is designed to provide a complete  
3
OUT1  
power management solution for Texas  
Instruments DSP, processor power, ASIC, FPGA,  
and digital applications where dual output voltage  
regulators are required. Easy programmability of  
the sequencing function makes this family ideal  
for any Texas Instruments DSP applications with  
power sequencing requirement. Differentiated  
features, such as accuracy, fast transient  
response, SVS supervisory circuit (power on  
reset), manual reset inputs, and enable function,  
provide a complete system solution.  
4
NC  
MR2  
MR1  
EN  
SEQ  
GND  
/FB1  
SENSE1  
5
NC  
6
PG1  
RESET  
NC  
7
8
9
V
V
V
/FB2  
SENSE2  
OUT2  
10  
11  
12  
V
V
IN2  
IN2  
OUT2  
GND/HEATSINK  
GND/HEATSINK  
NC − No internal connection  
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.  
PowerPAD is a trademark of Texas Instruments.  
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Copyright 2006, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...32

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