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TPS57114-EP

更新时间: 2024-09-20 01:14:59
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德州仪器 - TI /
页数 文件大小 规格书
43页 1668K
描述
TPS57114-EP 2.95-V to 6-V Input, 3.5-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter

TPS57114-EP 数据手册

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TPS57114-EP  
SLVSCG0 JULY 2014  
TPS57114-EP 2.95-V to 6-V Input, 3.5-A Output, 2-MHz, Synchronous Step-Down  
SWIFT™ Converter  
1 Features  
3 Description  
The TPS57114-EP device is a full-featured 6-V,  
1
Two 12-m(Typical) MOSFETs for High  
3.5-A,  
synchronous  
step-down  
current-mode  
Efficiency at 3.5-A Loads  
converter with two integrated MOSFETs.  
200-kHz to 2-MHz Switching Frequency  
The TPS57114-EP enables small designs by  
integrating the MOSFETs, implementing current-  
mode control to reduce external component count,  
reducing inductor size by enabling up to 2-MHz  
switching frequency, and minimizing the IC footprint  
with a small 3-mm × 3-mm thermally-enhanced  
WQFN package.  
0.8-V ±1% Voltage Reference Over Temperature  
(–55°C to 125°C)  
Synchronizes to External Clock  
Adjustable Slow Start and Sequencing  
UV and OV Power-Good Output  
Thermally Enhanced 3-mm × 3-mm 16-Pin WQFN  
The TPS57114-EP provides accurate regulation for a  
variety of loads with an accurate ±1% voltage  
reference (VREF) over temperature.  
Supports Defense, Aerospace, and Medical  
Applications  
Controlled Baseline  
The integrated 12-mMOSFETs and 515-µA typical  
supply current maximize efficiency. Entering  
shutdown mode by using the enable pin reduces the  
shutdown supply current to 5.5 µA.  
One Assembly and Test Site  
One Fabrication Site  
Available in Military (–55°C to 125°C)  
Temperature Range  
The internal undervoltage lockout (UVLO) setting is  
2.45 V, but programming the threshold with a resistor  
network on the enable pin can increase it. The slow-  
start pin controls the output-voltage start-up ramp. An  
open-drain power-good signal indicates the output is  
within 93% to 107% of its nominal voltage.  
Extended Product Life Cycle  
Extended Product-Change Notification  
Product Traceability  
2 Applications  
Device Information(1)  
Low-Voltage, High-Density Power Systems  
ORDER NUMBER  
PACKAGE  
BODY SIZE (NOM)  
Point-of-Load Regulation for High-Performance  
DSPs, FPGAs, ASICs, and Microprocessors  
TPS57114MRTETEP WQFN (16)  
3.00 mm × 3.00 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Broadband, Networking, and Optical  
Communications Infrastructure  
4 Simplified Schematic  
CBOOT  
TPS57114-EP  
Efficiency vs Output Current  
VIN  
VIN  
BOOT  
100  
R
R
4
5
C
3 Vin  
I
L
O
95  
EN  
PH  
VOUT  
5 Vin  
90  
C
O
85  
R
R
1
2
PWRGD  
80  
75  
VSENSE  
SS/TR  
RT/CLK  
COMP  
70  
65  
60  
C
GND  
ss  
R
AGND  
R
T
3
POWERPAD  
C
1
f
= 500kHz  
s
55  
50  
Vout = 1.8V  
0
1
2
3
4
I
- Output Current - A  
O
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 

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