參數(shù)資料
型號(hào)： R1221N47AF-TR
廠商： RICOH COMPANY LTD
元件分類(lèi)： 穩(wěn)壓器
英文描述： Voltage-Mode SMPS Controller
中文描述： 0.025 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO6
封裝： SOT-23, 6 PIN
文件頁(yè)數(shù)： 2/21頁(yè)
文件大小： 218K
代理商： R1221N47AF-TR
12345
Rev. 1.11 - 2 -
n
BLOCK DIAGRAM
OSC
V
IN
EXT
GND
V
OUT
Vref
Vref
CE
Chip Enable
Soft Start
Protection
PWM/VFM
CONTROL
VD
OUT
n
SELECTION GUIDE
In the R1221N Series, the output voltage, the detector threshold, the oscillator frequency, the optional
function, and the taping type for the ICs can be selected at the user’s request.
The selection can be made by designating the part number as shown below;
R1221NXXXX-TR
-
-
-
a
b c
Code
a
Contents
Setting Output Voltage(V
OUT
):
Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible.
Setting Detector Threshold(-V
DET
)
Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V is possible.
A:3.0V
Designation of Oscillator Frequency and Optional Function
A:300kHz, with a PWM/VFM alternative circuit, Latch-type protection
B:500kHz, with a PWM/VFM alternative circuit, Latch-type protection
C:300kHz, without a PWM/VFM alternative circuit, Latch-type protection
D:500kHz, without a PWM/VFM alternative circuit, Latch-type protection
E:300kHz, with a PWM/VFM alternative circuit, Reset-type protection
F:500kHz, with a PWM/VFM alternative circuit, Reset-type protection
G:300kHz, without a PWM/VFM alternative circuit, Reset-type protection
H:500kHz, without a PWM/VFM alternative circuit, Reset-type protection
b
c
相關(guān)PDF資料
PDF描述
R1221N47AG Voltage-Mode SMPS Controller
R1221N47AG-TR Voltage-Mode SMPS Controller
R1221N47AH Voltage-Mode SMPS Controller
R1221N48AC Voltage-Mode SMPS Controller
R1221N48AC-TR Voltage-Mode SMPS Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R1221N47AG 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Voltage-Mode SMPS Controller
R1221N47AG-TR 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Voltage-Mode SMPS Controller
R1221N47AH 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Voltage-Mode SMPS Controller
R1221N47AH-TR 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Voltage-Mode SMPS Controller
R1221N47XA-TR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller
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