參數(shù)資料
型號： RH5RH703B-T1
廠商： RICOH COMPANY LTD
元件分類： 穩(wěn)壓器
英文描述： PWM STEP-UP DC/DC CONVERTER
中文描述： 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO5
封裝： SOT-89, 5 PIN
文件頁數(shù)： 29/29頁
文件大小： 199K
代理商： RH5RH703B-T1
8
RH5RH303B
Symbol
Item
VOUT
Output Voltage
VIN
Input Voltage
Vstart
Start-up Voltage
Vhold
Hold-on Voltage
η
Efficiency
IDD1
Supply Current 1
IDD2
Supply Current 2
ILX
Lx Switching Current
ILXleak
Lx Leakage Current
IEXTH
EXT “H” Output Current
IEXTL
EXT “L” Output Current
VCEH1
CE “H” Level 1
VCEL1
CE “L” Level 1
VCEH2
CE “H” Level 2
VCEL2
CE “L” Level 2
ICEH
CE “H” Input Current
ICEL
CE “L” Input Current
fosc
Oscillator Frequency
Maxdty
Oscillator Maximum Duty
Cycle
tstart
Soft-Start Time
VLXlim
VLX Voltage Limit
Conditions
MIN.
TYP.
MAX.
Unit
Note
2.925
3.000
3.075
V
8V
IOUT=1mA,VIN : 0
→2V
0.8
0.9
V
IOUT=1mA,VIN : 2
→0V
0.7
V
70
85
%
To be measured at OUT pin
30
50
A
To be measured at OUT pin
25
A
VIN=3.5V
VLX=0.4V
60
mA
VLX=6V,VIN=3.5V
0.5
A
VEXT=VOUT–0.4V
–1.5
mA
VEXT=0.4V
1.5
mA
VOUT
≥1.5V
VOUT–0.4
V
VOUT
≥1.5V
0.4
V
0.8V
≤VOUT<1.5V
VOUT–0.1
V
0.8V
≤VOUT<1.5V
0.1
V
CE=3V
0.5
A
CE=0V
–0.5
A
80
100
120
kHz
on (VLX “L” )side
70
80
90
%
Time required for the rising
0.5
2.0
ms
Note1
of VOUT up to 3V.
Lx Switch ON
0.65
0.8
1.0
V
Note2
VOUT=3.0V
Unless otherwise provided, VIN=1.8V, VSS=0V, IOUT=10mA, Topt=25C, and use External Circuit of Typical
Application (FIG. 3).
(Note 1) Soft-Start Circuit is operated in the following sequence :
(1) VIN is applied.
(2) The voltage (Vref) of the reference voltage unit is maintained at 0V for about 200s after the application of VIN.
(3) The output of Error Amp. is raised to “H” level during the maintenance of the voltage (Vref) of the reference voltage unit.
(4) After the rise of Vref, the output of Internal Error Amp. is gradually decreased to an appropriate value by the function of Internal Phase Com
pensation Circuit, and the Output Voltage is gradually increased in accordance with the gradual decrease of the output of Internal Error Amp.
(Note 2) ILX is gradually increased after Lx Switch is turned ON. In accordance with the increase of ILX, VLX is also increased. When VLX reaches VLXlim,
Lx Switch is turned OFF by an Lx Switch Protection Circuit.
RH5RH
相關(guān)PDF資料
PDF描述
RH5RH403B-T1 PWM STEP-UP DC/DC CONVERTER
RH5RH603B-T1 PWM STEP-UP DC/DC CONVERTER
RH5RH303B-T2 PWM STEP-UP DC/DC CONVERTER
RH5RH503B-T2 MB 18 18#20 SKT PLUG
RH5RL22AA-TL Replaced by UCC3952-4 : Single Cell Lithium-Ion Battery Protection Circuit 16-SOIC -20 to 70
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RH5RH703B-T2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM STEP-UP DC/DC CONVERTER
RH5RH711A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
RH5RH711A-T1 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM STEP-UP DC/DC CONVERTER
RH5RH711A-T2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM STEP-UP DC/DC CONVERTER
RH5RH712B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

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

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*