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參數(shù)資料
| 型號： | TPS62510DRCT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, PLASTIC, SON-10 |
| 文件頁數(shù)： | 4/24頁 |
| 文件大小： | 1063K |
| 代理商： | TPS62510DRCT |
VI
1.8Vto3.8V
TPS62510
PGND
L1
2.2 H
m
C2
22 F
m
C3
22pF
R1
300kW
R2
200kW
R4
200kW
V1
OutputofExternal
DC-DCConverter
e.g.I/ORail
R3
300kW
Cf
100nF
Rf1 W
V2
1.5Vto1.5 A
C1
10 F
m
SW
FB
PG
AGND
PVIN
7
AVIN
EN
OVT
MODE
10
5
6
8
9
2
1
4
3
V2
Time
V1
V
oltage
R1
R2
<
R3
R4
1.5V-0.6V
0.6V
=1.5
R3
R4
V2-V
ref
V
ref
=
(3)
200k
300k+200k
V2
Vref
V2
=V
x
(tracking)
(OVT)
R4
R3+R4
=V1
x
1.5V
0.6V
=V1x
x
V2
Vref
=V1
(4)
V2
Time
V1
R1
R2
=
R3
R4
V
oltage
SLVS651A – MAY 2006 – REVISED JULY 2009 ................................................................................................................................................................ www.ti.com
Figure 18. Output Voltage Tracking, V2 Tracks V1
In this application, the output voltage (V2) of the TPS6251x tracks the voltage (V1) as long as the OVT voltage is
smaller then the internal device reference voltage, Vref = 0.6 V. Depending on the resistor divider (R3, R4), the
tracking can be adjusted. V2 can rise faster, at the same timer, or slower than V1.
Figure 19. V2 Comes Up Before V1
Simultaneous tracking is achieved when the resistor divider (R3/R4) is equal to the resistor divider of the
TPS65210.
Equation 3 and Equation 4 are used with the fixed and adjustable version of the TPS6251x. If V2 needs to rise
before V1, then R4 must be increased as shown in Figure 20.
Figure 20. Simultaneous Tracking of V2 and V1
12
Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS62510
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS62510DRCT | 制造商:Texas Instruments 功能描述:DC/DC Converter (DC-DC) / Switching Regu |
| TPS62510DRCTG4 | 功能描述:直流/直流開關調(diào)節(jié)器 Adj. 97% Efficient 1.5A Buck 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(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62510EVM-168 | 功能描述:電源管理IC開發(fā)工具 BUCK CONVERTER 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 |
| TPS62560DRVR | 功能描述:直流/直流開關調(diào)節(jié)器 2.25MHz 600mA Step- Down Cnvrtr 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(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62560DRVRG4 | 功能描述:直流/直流開關調(diào)節(jié)器 90%Efficient Synch Boost 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(shù)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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