參數(shù)資料
型號(hào)： TPS62000YEGT
廠商： Texas Instruments, Inc.
元件分類： DC/DC變換器
英文描述： HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER
中文描述： 高效率降壓型小功率DC - DC變換器
文件頁(yè)數(shù)： 15/25頁(yè)
文件大?。?/td> 475K
代理商： TPS62000YEGT
SLVS294C SEPTEMBER 2000 REVISED SEPTEMBER 2003
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
adjustable output voltage version
When the adjustable output voltage version (TPS62000DGS) is used, the output voltage is set by the external
resistor divider (see Figure 15).
The output voltage is calculated as:
VO
0.45 V
1
R1
R2
With R1 + R2
≤
1 M
R1 + R2 should not be greater than 1 M
because of stability reasons.
For stability reasons, a small bypass capacitor (C
ff
) is required in parallel to the upper feedback resistor, refer
to Figure 15. The bypass capacitor value can be calculated as:
C
(ff)
2
π
x 301
o
47
μ
F
C
(ff)
2
π
x 51
o
≥
47
μ
F
R1 is the upper resistor of the voltage divider. For C
(ff)
, choose a value which comes closest to the computed
result.
VIN
1
8
6
7
3
2
9
5
10
4
L1 = 10
μ
H
EN
ILIM
SYNC
GND
FC
PG
PGND
FB
L
TPS62000
+
Co = 10
μ
F
VO = 2.5 V/600 mA
C3 = 0.1
μ
F
Ci = 10
μ
F
VI = 2.7 V to 5.5 V
R3 = 320 k
R1 = 820 k
C(ff) =
6.8 pF
R2 = 180 k
+
PG
Figure 15. Typical Application Circuit for Adjustable Output Voltage Option
inductor selection
A 10
μ
H minimum output inductor is used with the TPS6200x. Values larger than 22
μ
H or smaller than 10
μ
H
may cause stability problems because of the internal compensation of the regulator.
For output voltages greater than 1.8 V, a 22
μ
H inductance might be used in order to improve the efficiency of
the converter.
After choosing the inductor value of typically 10
μ
H, two additional inductor parameters should be considered:
first the current rating of the inductor and second the dc resistance.
The dc resistance of the inductance influences directly the efficiency of the converter. Therefore, an inductor
with lowest dc resistance should be selected for highest efficiency.
相關(guān)PDF資料
PDF描述
TPS62001DGSR HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER
TPS62020EVM 0.6-A High-Efficiency Step-Down Converters Evaluation Module(0.6A高效率降壓轉(zhuǎn)換器TPS62020評(píng)估模塊)
TPS62102EVM TPS62102 Low-Power High-Efficiency Buck Converter Evaluation Module(低功耗，高效率降壓轉(zhuǎn)換器TPS62102評(píng)估模塊)
TPS65010EVM-230 TPS65010 Evaluation Module(TPS65010評(píng)估模塊)
TPS65014RGZ POWER AND BATTERY MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS62000YZGR 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj 600-mA 95% Eff Step-Down Converter RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS62000YZGT 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Adj 600-mA 95% Eff Step-Down Conv RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS62001DGS 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 0.9V Out 600mA Step-Down Con RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)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
TPS62001DGSG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 0.9V Out 600mA Step-Down Con RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)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
TPS62001DGSR 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 0.9V Out 600mA Step-Down Con RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*