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參數(shù)資料
| 型號(hào)： | R5220D321B-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING REGULATOR, 1440 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 0.85 MM HEIGHT, TSON-6 |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 627K |
| 代理商： | R5220D321B-TR |
R5220D
14
1-7) DC/DC Output Voltage vs. Temperature
R5220D181A
1.74
1.86
1.84
1.76
1.80
1.78
1.82
03
14
25
Time(
s)
Output
Ripple
Voltage(V)
1.70
1.72
1.90
1.84
1.80
1.88
1.76
1.82
1.78
1.86
1.74
Temperature Topt( )
Output
Voltage
V
OUT
(V)
IOUT=50mA
-50
75
25
-25
50
0
100
1-8) DC/DC Oscillator Frequency vs. Temperature
1-9) DC/DC Oscillator Frequency vs. Input Voltage
R5220D181A
1000
1050
1400
1250
1350
1150
1200
1300
1100
Temperature Topt( )
Frequency
fosc(kHz)
VIN=3.6V
-50
75
25
-25
50
0
100
1050
1350
1250
1150
1200
1300
1100
2.5
3.0
4.0
5.0
4.5
3.5
5.5
Input Voltage(V)
Frequency
fosc(kHz)
1-10) Soft-start time vs. Temperature
1-11) UVLO Detector Threshold/ Released Voltage vs.
Temperature
DC/DC_VSET : 1.0V
DC/DC_VSET : 1.8V
0
250
100
200
50
150
Temperature Topt( )
Soft-Start
Time
(
s)
-50
75
25
-25
50
0
100
UVLO Detector Threshold
UVLO Released Voltage
2.0
2.8
2.3
2.7
2.1
2.5
2.2
2.6
2.4
Temperature Topt( )
V
DD
Voltage
Level(V)
-50
75
25
-25
50
0
100
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