參數(shù)資料
型號(hào)： R1230D001D-TL
廠商： RICOH COMPANY LTD
元件分類： 穩(wěn)壓器
英文描述： PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
中文描述： 0.8 A SWITCHING REGULATOR, 920 kHz SWITCHING FREQ-MAX, PDSO8
封裝： 0.90 MM HEIGHT, THIN, SON-8
文件頁(yè)數(shù)： 19/20頁(yè)
文件大?。?/td> 648K
代理商： R1230D001D-TL
Rev. 1.17
- 8 -
n TYPICAL APPLICATION AND TECHNICAL NOTES
1) Fixed Output Voltage Type
CIN
COUT
AGND
MODE
VOUT
CE
VDD
PGND
Lx
VIN
LOAD
L
VOUT
L
: 10
H LQH3C100K54 (Murata)
COUT: 10
F ECSTOJX106R (Panasonic)
CIN
: 10
F C3216JB0J106M (TDK)
2) Adjustable Output Voltage Type
Rb
Cb
CIN
COUT
AGND
MODE
VFB
CE
VDD
PGND
LX
VIN
LOAD
R1
R2
L
VOUT
L
: 10
H LQH3C100K54 (Murata)
COUT: 10
F ECSTOJX106R (Panasonic)
CIN
: 10
F C3216JB0J106M (TDK)
As for how to choose Cb, Rb, R1, and R2 values, refer to the technical notes.
When you use these ICs, consider the following issues;
l Input same voltage into Power Supply pins, VIN and VDD. Set the same level as AGND and PGND.
l
When you control the CE pin and MODE pin by another power supply, do not make its "H" level more than the voltage
level of VIN / VDD pin.
l
Set external components such as an inductor, CIN, COUT as close as possible to the IC, in particular, minimize the
wiring to VIN pin and PGND pin.
l
At stand by mode, (CE=”L”), the Lx output is Hi-Z, or both P-channel transistor and N-channel transistor of Lx pin turn
off.
l
Use an external capacitor COUT with a capacity of 10
F or more, and with good high frequency characteristics such
as tantalum capacitors.
l
At VFM mode, (MODE=”H”), Latch protection circuit does not operate.
l
If the mode is switched over into PWM mode from VFM mode during the operation, change the mode at light load
current. If the load current us large, output voltage may decline.
相關(guān)PDF資料
PDF描述
R1230D001D-TR Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Metal; Series:MS C-26482 Series I; No. of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug RoHS Compliant: No
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R1230D001D-TR 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
R1230D00C-TL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
R1230D00C-TR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
R1230D00D-TL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
R1230D00D-TR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
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