參數(shù)資料
型號(hào)： TPS62050DGSG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 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(yè)數(shù)： 3/25頁(yè)
文件大?。?/td> 602K
代理商： TPS62050DGSG4
www.ti.com
, nominal
0.8%
1.6%
–1.6%
t
VO
TPS62050, TPS62051
TPS62052, TPS62054, TPS62056
SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003
APPLICATION INFORMATION (continued)
Feedforward Capacitor
The feedforward capacitor, C(ff) shown in Figure 20, improves the performance in SKIP mode. The comparator is
faster, therefore, there is less voltage ripple at the output in SKIP mode. Use the values listed in Table 1. Larger
values decrease stability in fixed frequency PWM mode. If the TPS6205x is only operated in fixed frequency
PWM mode, the feedforward capacitor is not needed.
Figure 16. Power-Save Mode Output Voltage Thresholds
The converter enters the fixed frequency PWM mode again as soon as the output voltage falls below the comp
low 2 threshold set to 1.6% below VO, nominal.
Soft-Start
The TPS6205x has an internal soft-start circuit that limits the inrush current during start-up. This prevents
possible voltage drops of the input voltage if a battery or a high impedance power source is connected to the
input of the TPS6205x.
The soft-start is implemented as a digital circuit increasing the switch current in steps of 200 mA, 400 mA, 800
mA and then the typical switch current limit of 1.2 A. Therefore the start-up time mainly depends on the output
capacitor and load current. Typical start-up time with a 22-F output capacitor and a 200-mA load current is 1
ms.
100% Duty Cycle Low Dropout Operation
The TPS6205x offers the lowest possible input to output voltage difference while still maintaining operation with
the use of the 100% duty cycle mode. In this mode, the P-channel switch is constantly turned on. This is
particularly useful in battery powered applications to achieve longest operation time by taking full advantage of
the whole battery voltage range, i.e. The minimum input voltage to maintain regulation depends on the load
current and output voltage and can be calculated as:
11
相關(guān)PDF資料
PDF描述
TLVH431QDBZRG4 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO3
TLVH431IBQDBZR 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO3
TPS60120PWPG4 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
TPS60121PWPG4 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
TC151A3413EOA723 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS62050DGSR 功能描述:直流/直流開(kāi)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(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
TPS62050DGSR 制造商:Texas Instruments 功能描述:DC/DC Converter IC
TPS62050DGSRG4 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 Adj 800mA 10V Vin Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
TPS62050EVM-234 功能描述:電源管理IC開(kāi)發(fā)工具 TPS62050-234 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS62051DGS 功能描述:直流/直流開(kāi)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(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
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(xiě)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

*
*
*