參數(shù)資料
型號(hào)： R1202N723D-TR-FE
廠商： RICOH COMPANY LTD
元件分類： 穩(wěn)壓器
英文描述： 0.9 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6
封裝： HALOGEN FREE AND ROHS COMPLIANT, TSOT-23, 6 PIN
文件頁(yè)數(shù)： 5/23頁(yè)
文件大?。?/td> 572K
代理商： R1202N723D-TR-FE
R1202x
13
OPERATION OF STEP-UP DC/DC CONVERTER AND OUTPUT CURRENT
<Basic Circuit>
L
Diode
CL
Lx Tr
VIN
VOUT
IOUT
i2
i1
GND
VOUT
<Current through L>
Discontinuous mode
Continuous mode
ILmax
ILmin
ton
toff
T=1/fosc
topen
IL
t
ILmax
ILmin
ton
toff
T=1/fosc
IL
Iconst
t
There are two operation modes of the step-up PWM control-DC/DC converter. That is the continuous mode and
discontinuous mode by the continuousness inductor.
When the transistor turns ON, the voltage of inductor L becomes equal to VIN voltage. The increase value of
inductor current (i1) will be
Δi1 = VIN × ton / L .................................................................................................. Formula 1
As the step-up circuit, during the OFF time (when the transistor turns OFF) the voltage is continually supply
from the power supply. The decrease value of inductor current (i2) will be
i2 = (VOUT - VIN)
× topen / L................................................................................... Formula 2
At the PWM control-method, the inductor current become continuously when topen
=toff, the DC/DC converter
operate as the continuous mode.
相關(guān)PDF資料
PDF描述
R1210N251C-TR-F 0.04 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PDSO5
R1210N232D-TR-F 0.04 A SWITCHING CONTROLLER, 216 kHz SWITCHING FREQ-MAX, PDSO5
R1210N292D-TR-FE 0.04 A SWITCHING CONTROLLER, 216 kHz SWITCHING FREQ-MAX, PDSO5
R1218K031ATR 1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6
R1218K072A-TR 1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R1203 制造商:Rochester Electronics LLC 功能描述:
R120-3/8-BLK-S 制造商:Sumitomo Wiring Systems LTD 功能描述:
R120352500 制造商:Radiall 功能描述:CONN COAXIAL F 0HZ TO 2GHZ 50OHM CRMP RA CBL MNT AU - Bulk 制造商:Radiall 功能描述:RF COAXIAL CABLE MOUNT CONNECTOR
R120352510 制造商:Radiall 功能描述:CONN COAXIAL F 0HZ TO 2GHZ 50OHM CRMP RA CBL MNT AU - Bulk 制造商:Radiall 功能描述:RF COAXIAL CABLE MOUNT CONNECTOR
R120354500 制造商:Radiall 功能描述:CONN COAXIAL F 0HZ TO 2GHZ 50OHM CRMP RA CBL MNT AU - Bulk
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

*
*
*