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TPS54310-EP 参数 Datasheet PDF下载

TPS54310-EP图片预览
型号: TPS54310-EP
PDF下载: 下载PDF文件 查看货源
内容描述: 3 V至6 V的输入, 3 -A输出,具有集成FET的同步降压PWM切换器( SWIFT ™ ) [3-V TO 6-V INPUT, 3-A OUTPUT,SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs(SWIFT™)]
分类和应用: 输出元件输入元件
文件页数/大小: 21 页 / 750 K
品牌: TI [ TEXAS INSTRUMENTS ]
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TPS54310-EP  
SLVS818APRIL 2008 ..................................................................................................................................................................................................... www.ti.com  
PERFORMANCE GRAPHS  
EFFICIENCY  
vs  
OUTPUT CURRENT  
OUTPUT VOLTAGE  
vs  
LOAD CURRENT  
LOOP RESPONSE  
100  
95  
135  
90  
3.4  
3.38  
3.36  
3.34  
60  
40  
20  
V = 5 V  
I
V = 4 V  
I
T
= 25°C  
A
V = 5 V  
I
Phase  
90  
85  
V = 6 V  
I
45  
Gain  
3.32  
3.3  
80  
75  
0
0
T
A
= 25°C  
3.28  
3.26  
3.24  
−45  
−20  
70  
65  
−90  
1 M  
−40  
0
1
2
3
4
5
100  
1 k  
10 k  
100 k  
0
1
2
3
4
5
I
− Output Current − A  
I
− Load Current − A  
f − Frequency − Hz  
O
L
Figure 13.  
Figure 14.  
Figure 15.  
OUTPUT RIPPLE VOLTAGE  
LOAD TRANSIENT RESPONSE  
SLOW-START TIMING  
V = 5 V  
40 µs/div  
V (AC)  
O
50 mV/div  
I
V
(AC)  
O
V 2 V/div  
I
10 mV/div  
V
O
2 V/div  
V
5 V/div  
PWRGD  
I
O
V = 5 V  
I
2 A/div  
I
O
= 3 A  
400 ns/div  
1 ms/div  
Figure 16.  
Figure 17.  
Figure 18.  
AMBIENT TEMPERATURE  
vs  
LOAD CURRENT  
125  
115  
105  
95  
V
= 5 V  
I
85  
V
= 3.3 V  
I
75  
65  
Safe Operating Area  
55  
45  
35  
25  
0
1
2
3
4
I
− Load Current − A  
L
Safe operating area is applicable to the test board conditions  
listed in the dissipation rating table section of this data sheet.  
Figure 19.  
12  
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Copyright © 2008, Texas Instruments Incorporated  
Product Folder Link(s): TPS54310-EP