參數(shù)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(shù)： 7/25頁
文件大?。?/td> 602K
代理商： TPS62050DGSG4
www.ti.com
PGND
FB
PG
VIN
8
LBO
GND
SYNC
EN
LBI
TPS62050
SW
1
6
7
3
2
9
5
4
10
L1 = 10
H
VO = 5 V
R1 =
820 k
C(ff) = 6.8 pF
R2 = 91 k
Co = 22 F
Ci = 10 F
VI
R5
130 k
R6
100 k
R3
1 M
R4
1 M
TDK
C3216X5R1A106M
Taiyo Yuden
JMK316BJ226ML
WE PD 744 777 10
Quiescent Current Measurements and Efficiency Were Taken
With: R5 = Open, R4 = Open, LBI Connected to GND.
V
O +
V
FB
R1 ) R2
R2
R1 + R2
V
O
V
FB
–R2
V
FB +
0.5V
TPS62050, TPS62051
TPS62052, TPS62054, TPS62056
SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003
APPLICATION INFORMATION (continued)
No Load Operation
If the converter operates in the forced PWM mode and there is no load connected to the output, the converter
regulates the output voltage by allowing the inductor current to reverse for a short period of time.
STANDARD CIRCUIT FOR ADJUSTABLE VERSION
Table 1. Values
NOMINAL OUTPUT VOLTAGE
EQUATION
POSSIBLE RESISTOR COMBINATION TYPICAL FEEDBACK CAPACITOR
0.7 V
R1 = 0.4 x R2
R1 = 270 k, R2 = 680 k
C(ff) = 22 pF
1.2 V
R1 = 1.4 x R2
R1 = 510 k, R2 = 360 k (1.21 V)
C(ff) = 6.8 pF
1.5 V
R1 = 2 x R2
R1 = 300 k, R2 = 150 k (1.50 V)
C(ff) = 6.8 pF
1.8 V
R1 = 2.6 x R2
R1 = 390 k, R2 = 150 k (1.80 V)
C(ff) = 6.8 pF
2.5 V
R1 = 4 x R2
R1 = 680 k, R2 = 169 k (2.51 V)
C(ff) = 6.8 pF
3.3 V
R1 = 5.6 x R2
R1 = 560 k, R2 = 100 k (3.30 V)
C(ff) = 6.8 pF
5 V
R1 = 9 x R2
R1 = 820 k, R2 = 91 k (5.0 V)
C(ff) = 6.8 pF
15
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TPS62050DGSR 功能描述:直流/直流開關(guān)調(diào)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(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62050DGSR 制造商:Texas Instruments 功能描述:DC/DC Converter IC
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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(chǎn)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(guān)調(diào)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(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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