參數(shù)資料
型號: R1218K042A-TR
廠商: RICOH COMPANY LTD
元件分類: 穩(wěn)壓器
英文描述: 1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, DSO6
封裝: 1.80 X 2 MM, PLP-6
文件頁數(shù): 5/22頁
文件大?。?/td> 669K
代理商: R1218K042A-TR
R1218x
13
5-2. Output Voltage Waveform (Topt=25
°C)
R1218x021A
0
2.4
1.6
0.8
3.2
CE
Input
Voltage
V
CE
(V)
0
10
5
fosc=200Hz
0
5
10
Output Voltage
Time (ms)
Output
Voltage
V
OUT
(V)
CE Input Voltage
0
0.12
0.08
0.04
0.16
0
10
5
fosc=5kHz
0
5
10
CE
Input
Voltage
V
CE
(V)
Output Voltage
Time (ms)
Output
Voltage
V
OUT
(V)
CE Input Voltage
6) PWM Dimming Control (4 LED) VIN=3.6V, R1=10
6-1. Duty vs. LED Current (Topt=25
°C)
R1218x041A
5kHz
1kHz
200Hz
060
40
20
80
100
0
7.5
5.0
2.5
10.0
12.5
15.0
20.0
17.5
22.5
25.0
Duty (%)
LED
Current
l
LED
(mA)
6-2. Output Voltage Waveform (4 LED) (Topt=25
°C)
R1218x041A
0
2.4
1.6
0.8
3.2
0
20
10
fosc=200Hz
0
5
10
CE
Input
Voltage
V
CE
(V)
Output Voltage
Time (ms)
Output
Voltage
V
OUT
(V)
CE Input Voltage
0
0.12
0.08
0.04
0.16
0
20
10
fosc=5kHz
0
5
10
CE
Input
Voltage
V
CE
(V)
Output Voltage
Time (ms)
Output
Voltage
V
OUT
(V)
CE Input Voltage
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