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參數資料
| 型號： | TPS62050DGSG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.4 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | GREEN, PLASTIC, MSOP-10 |
| 文件頁數： | 9/25頁 |
| 文件大?。?/td> | 602K |
| 代理商： | TPS62050DGSG4 |
www.ti.com
DIL + VO
1 *
V
O
V
I
L
f
I
L
(max) + IO(max) )
DIL
2
f = Switching frequency (850 kHz typical)
L = Inductor value
IL = Peak-to-peak inductor ripple current
IL(max) = Maximum inductor current
TPS62050, TPS62051
TPS62052, TPS62054, TPS62056
SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003
APPLICATION INFORMATION (continued)
INDUCTOR SELECTION
A 10-H minimum inductor should be used with the TPS6205x. Values larger than 22 H or smaller than 10 H
may cause stability problems due to the internal compensation of the regulator. After choosing the inductor value
of typically 10 H, two additional inductor parameter should be considered: the current rating of the inductor and
the dc resistance. The dc resistance of the inductance directly influences the efficiency of the converter.
Therefore, an inductor with lowest dc resistance should be selected for highest efficiency. In order to avoid
saturation of the inductor, the inductor should be rated at least for the maximum output current plus half the
inductor ripple current which is calculated as:
The highest inductor current occurs at maximum VIN . A more conservative approach is to select the inductor
current rating just for the maximum switch current of the TPS6205x which is 1.4 A maximum. See Table 2 for
inductors that have been tested for operation with the TPS6205x.
Table 2. Inductors
MANUFACTURER
TYPE
INDUCTANCE
DC RESISTANCE
SATURATION CURRENT
SLF7032T-
10 H
±20%22 H ±20%10
53 m
±20%110
1.4 A0.96 A1.3 A0.9 A
100M1R4SLF7032T-
H
±20%22 H ±20%
m
±20%36
TDK
220M96SLF7045T-
m
±20%61 m±20%
100M1R3SLF7045T-
100MR90
CDR74B
10 H
70 m
1.65 A
CDR74B
22 H
130 m
1.12 A
CDH74
10 H
49 m
1.8 A
CDH74
22 H
110 m
1.23 A
Sumida
CDR63B
10 H
140 m
1 A
CDRH4D28
10 H
128 m
1 A
CDRH5D28
10 H
48 m
1.3 A
CDRH5D18
10 H
92 m
1.2 A
DT3316P-153
15 H
60 m
1.8 A
Coilcraft
DT3316P-223
22 H
84 m
1.5 A
WE-PD 744 778 10
10 H
72 m
1.68 A
WE-PD 744 777 10
10 H
49 m
1.84 A
Wuerth
WE-PD 744 778 122
22 H
190 m
1.07A
WE-PD 744 777 122
22 H
110 m
1.23 A
17
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| TPS62050DGSR | 功能描述:直流/直流開關調節(jié)器 Adj 800mA 10V Vin Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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| TPS62050EVM-234 | 功能描述:電源管理IC開發(fā)工具 TPS62050-234 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS62051DGS | 功能描述:直流/直流開關調節(jié)器 Adj 800-mA 10V Vin Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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