參數(shù)資料
型號(hào): R1221N25AD-TR
廠商: RICOH COMPANY LTD
元件分類: 穩(wěn)壓器
英文描述: Step-down DC/DC Converter with Voltage Detector
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): 6/21頁(yè)
文件大?。?/td> 218K
代理商: R1221N25AD-TR
12345
Rev. 1.11 - 6 -
n
TEST CIRCUITS
Inductor L : 27
m
H(Sumida Electronic, CD104) Diode SD : RB491D (Rohm, Schottky type)
Capacitor CL: 47
m
F(Tantalum type) C
IN
: 22
m
F(Tantalum type)
Power MOS PMOS : HAT1020R(Hitachi) Resistor R : 100k
W
C)
+
--
+
-
A)
4
3
6
5
V
OSCILLOSCOPE
SD
L
C
L
V
IN
1
PMOS
C
IN
2
+
-
+
-
F)
4
3
6
5
V
OSCILLOSCOPE
SD
L
C
L
1
PMOS
V
IN
C
IN
2
A
3
4
6
5
1
V
IN
2
3
4
6
5
1
G)
OSCILLOSCOPE
V
IN
V
OUT
2
E)
A
3
4
6
5
1
V
IN
2
A
3
4
6
5
1
D)
V
EXT
V
IN
V
OUT
2
A
3
4
6
5
1
H)
V
IN
V
OUT
2
A
I)
V
DOUT
3
4
6
5
1
V
IN
2
3
4
6
5
1
OSCILLOSCOPE
J)
V
IN
V
OUT
2
R
+
-
B)
A
3
4
6
5
1
C
IN
2
V
IN
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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