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TPS5120QDBTRQ1G4 PDF预览

TPS5120QDBTRQ1G4

更新时间： 2023-06-19 15:36:57
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德州仪器 - TI 控制器
页数 文件大小 规格书
21页 325K
描述
汽车类 4.5V 至 28V 双路两相同步降压控制器 | DBT | 30 | -40 to 125

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中文翻译

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TPS5120QDBTRQ1G4 数据手册

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SGLS225B − JANUARY 2004 − REVISED APRIL 2008  
D
D
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Qualified for Automotive Applications  
D
D
Sequencing Easily Achieved by Selecting  
Softstart Capacitor Values.  
Independent Dual-Outputs Operate 180°  
Out of Phase  
5-V Linear Regulator Power Internal IC  
Circuitry  
Wide Input Voltage Range: 4.5-V − 28-V  
D
30-Pin TSSOP Packaging  
Adjustable Output Voltage Down to 0.9 V  
D
Gate Leakage Test Passing Level is 50 V  
Pin-Selectable PWM/SKIP Mode for High  
Efficiency Under Light Loads  
DBT PACKAGE  
(TOP VIEW)  
Synchronous Buck Operation Allows up to  
95% Efficiency  
1
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
INV1  
FB1  
LH1  
OUT1_u  
LL1  
OUT1_d  
OUTGND1  
TRIP1  
2
Separate Standby Control and Overcurrent  
Protection For Each Channel  
3
SOFTSTART1  
PWM/SKIP  
CT  
4
D
Programmable Short-Circuit Protection  
5
D
Low Supply (1 mA) and Shutdown (1 nA)  
Current  
6
5V_STBY  
GND  
7
V
CC  
D
D
Power Good Output  
8
REF  
STBY1  
STBY2  
TRIP2  
9
VREF5  
REG5V_IN  
OUTGND2  
OUT2_d  
LL2  
High-Speed Error Amplifiers  
10  
11  
12  
13  
14  
15  
FLT  
POWERGOOD  
SOFTSTART2  
FB2  
description  
OUT2_u  
LH2  
The TPS5120 is a dual channel, high-efficiency  
synchronous buck controller where the outputs  
run 180 degrees out of phase, which lowers the  
INV2  
input current ripple, thereby reducing the input capacitance cost. The PWM/SKIP pin allows the operating mode  
to switch from PWM mode to skip mode under light load conditions. The skip mode enables a lower operating  
frequency and shortens the pulse width to the low-side MOSFET, increasing the efficiency under light load  
conditions. These two modes, along with synchronous-rectifier drivers, dead time, and very low quiescent  
current, allow power to be conserved and the battery life to be extended under all load conditions. The 1.5 A  
(typical) high-side and low-side MOSFET drivers on-chip are designed to drive less expensive N-channel  
MOSFETs. The resistorless current protection and fixed high-side driver voltage simplify the power supply  
design and reduce the external parts count. Each channel is independent, offering a separate controller,  
overcurrent protection, and standby control. Sequencing is flexible and can be tailored by choosing different  
softstart capacitor values. Other features, such as undervoltage lockout, power good, overvoltage,  
undervoltage, and programmable short-circuit protection promote system reliability.  
ORDERING INFORMATION{  
PACKAGE}  
T
A
TSSOP  
(DBT)  
−40°C to 125°C  
TPS5120QDBTRQ1  
†
‡
For the most current package and ordering  
information, see the Package Option  
Addendum at the end of this document, or  
see the TI web site at http://www.ti.com.  
Package drawings, thermal data, and  
symbolization  
are  
available  
at  
http://www.ti.com/packaging.  
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.  
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Copyright 2008 Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...21

中文翻译

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TPS5120QDBTRQ1G4 替代型号

型号 品牌 替代类型 描述 数据表
TPS5120QDBTREP TI

完全替代

 DUAL OUTPUT, TWO-PHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

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