R1224N342H-TR [RICOH]
Switching Controller, 0.05A, 600kHz Switching Freq-Max, CMOS, PDSO5, SOT-23, 5 PIN;
| 型号： | R1224N342H-TR |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Switching Controller, 0.05A, 600kHz Switching Freq-Max, CMOS, PDSO5, SOT-23, 5 PIN 开关 光电二极管 |
| 文件： | 总40页 (文件大小：322K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PWM/VFM step-down DC/DC Converter
NO. EA-096-0212
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1
R1224N
BLOCK DIAGRAM
*Fixed Output Voltage Type
OSC
V
IN
V
OUT
-
-
EXT
Amp
+
Vref
+
PWM/VFM
CONTROL
Soft Start
Chip Enable
CE
Protection
+
-
Vref
UVLO
GND
*Adjustable Output Voltage Type
OSC
V
IN
V
FB
-
-
EXT
Amp
+
Vref
+
Soft Start
Chip Enable
CE
Protection
+
Vref
UVLO
-
GND
2
R1224N
SELECTION GUIDE
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3
R1224N
PIN CONFIGURATION
SOT-23-5
5
4
VIN
EXT
(mark side)
V
OUT
GND (VFB)
CE
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Description
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Symbol
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Item
Rating
ꢁꢅ
Unit
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Symbol
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Item
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R1224N
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R1224N
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11
R1224N
OUTPUT CURRENT AND SELECTION OF EXTERNAL COMPONENTS
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R1224N
External Components
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13
R1224N
TIMING CHART
VOUT Set Output Voltage
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Reset Protection
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Soft Start
Soft Start Soft Start
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14
R1224N
TEST CIRCUITS
A) Output Voltage, Oscillator Frequency, CE “H” Input Voltage, CE “L” Input Voltage, Soft-start time
L1
PMOS
Oscilloscope
D1
EXT
VIN
GND
+
-
C2
V
OUT
)
CE
(VFB
+
-
C1
V
B) Supply Current 1
C) Standby Current
EXT
VIN
EXT
V
IN
A
A
GND
GND
V
OUT
V
OUT
CE
CE
(VFB
)
(VFB
)
D) EXT “H” Output Current
E) EXT “L” Output Current
EXT
V
IN
EXT
VIN
A
A
GND
GND
V
OUT
V
OUT
CE
CE
(VFB
)
(VFB
)
F) CE “H” Input Current, CE “L” Input Current
G) Output Delay Time for Protection Circuit
EXT
VIN
EXT
VIN
Oscilloscope
GND
GND
+
C2
-
V
OUT
V
OUT
A
CE
CE
(VFB
)
(VFB
)
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15
R1224N
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (*Note)
R1224N182E L=10uH
R1224N182F L=10uH
1.850
1.850
1.830
1.830
1.810
1.790
1.810
1.790
1.770
1.750
V
IN3.3V
IN5V
V
V
IN3.3V
IN5V
1.770
V
1.750
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current IOUT(mA)
R1224N182G L=10uH
R1224N182H L=10uH
1.850
1.830
1.810
1.790
1.770
1.750
1.850
1.830
1.810
1.790
1.770
1.750
V
V
V
IN3.3V
V
V
V
IN3.3V
IN5V
IN5V
IN12V
IN12V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N182L L=27uH
R1224N182M L=27uH
1.850
1.830
1.810
1.790
1.770
1.750
1.850
1.830
1.810
1.790
1.770
1.750
V
V
V
IN3.3V
V
IN3.3V
IN5V
IN5V
V
IN12V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
16
R1224N
R1224N332E L=10uH
R1224N332F L=10uH
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
3.400
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
V
IN4.8V
IN7V
V
IN4.8V
IN7V
V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332G L=10uH
R1224N332G (VIN=10V)
3.400
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
3.35
3.34
3.33
3.32
3.31
3.30
VIN4.8V
VIN12V
VIN15V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332G (VIN=16V)
R1224N332H L=10uH
3.35
3.34
3.33
3.32
3.31
3.30
3.400
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
V
V
V
IN4.8V
IN12V
IN15V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
17
R1224N
R1224N332L L=27uH
R1224N332M L=27uH
3.400
3.400
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
VIN4.8V
VIN12V
VIN15V
V
IN4.8V
IN7V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332M (VIN=5V)
R1224N332M (VIN=10V)
3.35
3.34
3.33
3.32
3.31
3.30
3.35
3.34
3.33
3.32
3.31
3.30
0
1
2
3
4
5
1
2
3
4
5
0
Output Current lOUT(A)
Output Current lOUT(A)
R1224N332M (VIN=18V)
R1224N502E L=10uH
5.100
3.35
3.34
3.33
3.32
3.31
3.30
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
V
V
IN6.5V
IN10V
0.1
1
10
100
1000
0
1
2
3
4
10000
Output Current lOUT(A)
Output Current lOUT(mA)
18
R1224N
R1224N502F L=10uH
R1224N502G L=10uH
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
V
V
V
IN6.5V
IN12V
IN15V
V
IN6.5V
IN10V
V
0.1
0.1
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502G (VIN=10V)
R1224N502G (VIN=16V)
5.05
5.04
5.03
5.02
5.01
5.00
5.05
5.04
5.03
5.02
5.01
5.00
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502H L=10uH
R1224N502L L=27uH
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
VIN6.5V
VIN12V
VIN15V
V
IN6.5V
IN10V
V
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
19
R1224N
R1224N502M L=27uH
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
V
V
V
IN6.5V
IN12V
IN15V
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
2) Efficiency vs. Output Current (*Note)
R1224N182F (VIN=3.3V) CDRH127-10uH
R1224N182F (VIN=5.0V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N182G (VIN=3.3V) CDRH127-10uH
R1224N182G (VIN=5.0V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
20
R1224N
R1224N182G (VIN=12V) CDRH127-10uH
R1224N182H (VIN=3.3V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N182H (VIN=5.0V) CDRH127-10uH
R1224N182H (VIN=12V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N182L (VIN=3.3V) CDRH127-27uH
R1224N182L (VIN=5.0V) CDRH127-27uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
21
R1224N
R1224N182M (VIN=3.3V) CDRH127-27uH
R1224N182M (VIN=5.0V) CDRH127-27uH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N182M (VIN=12V) CDRH127-27uH
R1224N332E (VIN=7.0V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332E (VIN=4.8V) CDRH127-10uH
R1224N332F (VIN=7.0V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
22
R1224N
R1224N332F (VIN=4.8V) CDRH127-10uH
R1224N332G (VIN=12V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332G (VIN=4.8V) CDRH127-10uH
R1224N332G (VIN=10V)
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332G (VIN=16V)
R1224N332G (VIN=15V) CDRH127-10uH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
23
R1224N
R1224N332H (VIN=12V) CDRH127-10uH
R1224N332H (VIN=4.8V) CDRH127-10uH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332H (VIN=15V) CDRH127-10uH
R1224N332L (VIN=7.0V) CDRH127-27uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332L (VIN=4.8V) CDRH127-27uH
R1224N332M (VIN=12V) CDRH127-27uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
24
R1224N
R1224N332M (VIN=4.8V) CDRH127-27uH
R1224N332M (VIN=5V)
100
100
98
96
94
92
90
88
86
84
82
80
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0
1
2
3
4
5
Output Current lOUT(mA)
Output Current lOUT(A)
R1224N332M (VIN=10V)
R1224N332M (VIN=18V)
100
100
98
96
94
92
90
88
86
84
82
80
98
96
94
92
90
88
86
84
82
80
0
1
2
3
4
5
0
1
2
3
4
Output Current lOUT(A)
Output Current lOUT(A)
R1224N332M (VIN=15V) CDRH127-27uH
R1224N502E (VIN=6.5V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
25
R1224N
R1224N502E (VIN=10V) CDRH127-10uH
R1224N502F (VIN=6.5V) CDRH127-10uH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502F (VIN=10V) CDRH127-10uH
100
R1224N502G (VIN=10V)
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502G (VIN=16V)
R1224N502G (VIN=6.5V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
26
R1224N
R1224N502G (VIN=12V) CDRH127-10uH
R1224N502G (VIN=15V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502H (VIN=6.5V) CDRH127-10uH
R1224N502H (VIN=12V) CDRH127-10uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502H (VIN=15V) CDRH127-10uH
R1224N502L (VIN=6.5V) CDRH127-27uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
27
R1224N
R1224N502L (VIN=10V) CDRH127-27uH
R1224N502M (VIN=6.5V) CDRH127-27uH
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502M (VIN=12V) CDRH127-27uH
R1224N502M (VIN=15V) CDRH127-27uH
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
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28
R1224N
3) Ripple Voltage vs. Output Current
R1224N182E L=10uH
R1224N182F L=10uH
70
70
60
50
40
30
20
10
0
60
V
IN3.3V
IN5V
V
IN3.3V
IN5V
50
40
30
20
10
0
V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current IOUT(mA)
Output Current IOUT(mA)
R1224N182G L=10uH
R1224N182H L=10uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
V
V
V
IN3.3V
V
V
V
IN3.3V
IN5V
IN5V
IN12V
IN12V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current IOUT(mA)
Output Current IOUT(mA)
R1224N182L L=27uH
R1224N182M L=27uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
V
V
V
IN3.3V
IN5V
V
IN3.3V
IN5V
V
IN12V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current IOUT(mA)
Output Current IOUT(mA)
29
R1224N
R1224N332E L=10uH
R1224N332F L=10uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
V
IN4.8V
IN7V
V
V
IN4.8V
IN7V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current IOUT(mA)
Output Current IOUT(mA)
R1224N332G L=10uH
R1224N332H L=10uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
VIN4.8V
VIN12V
VIN15V
VIN4.8V
VIN12V
VIN15V
0.1
100
1000 10000
0.1
1
10
100
1000 10000
1
10
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N332L L=27uH
R1224N332M L=27uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
VIN4.8V
VIN12V
VIN15V
V
IN4.8V
IN7V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
30
R1224N
R1224N502E L=10uH
R1224N502F L=10uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
V
IN6.5V
IN10V
V
IN6.5V
IN10V
V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current lOUT(mA)
Output Current lOUT(mA)
R1224N502G L=10uH
R1224N502H L=10uH
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
V
V
V
IN6.5V
IN12V
IN15V
V
V
V
IN6.5V
IN12V
IN15V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current IOUT(mA)
Output Current IOUT(mA)
R1224N502L L=27uH
R1224N502M L=27uH
70
70
60
50
40
30
20
10
0
60
50
40
30
20
10
0
V
V
V
IN6.5V
IN12V
IN15V
V
IN6.5V
IN10V
V
0.1
1
10
100
1000 10000
0.1
1
10
100
1000 10000
Output Current IOUT(mA)
Output Current IOUT(mA)
31
R1224N
4) Output Voltage vs. Input Voltage
R1224N182E L=10uH
R1224N182F L=10uH
2.00
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.95
1.90
1.85
1.80
1.75
1.70
1mA
1mA
500mA
500mA
1.65
1.60
0
0
0
5
10
15
20
20
20
0
0
0
5
10
15
20
20
20
Input Voltage VIN(V)
Input Voltage VIN(V)
R1224N182G L=10uH
R1224N182H L=10uH
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
-1mA
-500mA
-1mA
-500mA
5
10
15
5
10
15
Input Voltage VIN(V)
Input Voltage VIN(V)
R1224N182L L=27uH
R1224N182M L=27uH
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1mA
500mA
1mA
500mA
5
10
15
5
10
15
Input Voltage VIN(V)
Input Voltage VIN(V)
32
R1224N
R1224N332E L=10uH
R1224N332F L=10uH
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
1mA
500mA
1mA
500mA
0
0
0
5
10
15
20
20
20
0
0
0
5
10
15
20
Input Voltage VIN(V)
Input Voltage VIN(V)
R1224N332G L=10uH
R1224N332H L=10uH
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
-1mA
-500mA
-1mA
-500mA
5
10
15
5
10
15
20
Input Voltage VIN(V)
Input Voltage VIN(V)
R1224N332L L=27uH
R1224N332M L=27uH
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
1mA
500mA
1mA
500mA
5
10
15
5
10
15
20
Input Voltage VIN(V)
Input Voltage VIN(V)
33
R1224N
R1224N502E L=10uH
R1224N502F L=10uH
5.20
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
1mA
500mA
1mA
500mA
0
0
0
5
10
15
20
20
20
0
0
0
5
10
15
20
20
20
Input Voltage VIN(V)
Input Voltage VIN(V)
R1224N502G L=10uH
R1224N502H L=10uH
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
-1mA
-500mA
-1mA
-500mA
5
10
15
5
10
15
Input Voltage VIN(V)
Input Voltage VIN(V)
R1224N502L L=27uH
R1224N502M L=27uH
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
1mA
500mA
1mA
500mA
5
10
15
5
10
15
Input Voltage VIN(V)
Input Voltage VIN(V)
34
R1224N
5) Output Voltage vs. Temperature
R1224N332E
R1224N122F
3.33
1.210
1.205
1.200
1.195
1.190
3.32
3.31
3.30
3.29
3.28
3.27
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(˚C)
Temperature Topt(˚C)
R1224N602L
R1224N102G
6.10
1.010
1.005
1.000
0.995
0.990
6.05
6.00
5.95
5.90
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(˚C)
Temperature Topt(˚C)
6) Oscillator Frequency vs. Temperature
R1224N102G
R1224N102H
360
600
550
500
450
400
330
300
270
240
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(˚C)
Temperature Topt(˚C)
35
R1224N
R1224N102M
216
198
180
162
144
-40
-15
10
35
60
85
Temperature Topt(˚C)
7) Supply Current vs. Temperature
R1224N332E
R1224N602L
25
25
20
15
10
5
20
15
10
5
0
-40
0
-40
-15
10
35
60
85
-15
10
35
60
85
Temperature Topt(˚C)
Temperature Topt(˚C)
R1224N602F
R1224N102G
25
40
30
20
10
0
20
15
10
5
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(˚C)
Temperature Topt(˚C)
36
R1224N
R1224N102H
R1224N102M
60
50
40
30
20
10
0
40
30
20
10
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
Temperature Topt(˚C)
Temperature Topt(˚C)
8) Soft-start time vs. Temperature
R1224N102G
15
10
5
-40
-15
10
35
60
85
Temperature Topt(˚C)
9) Delay Time for Protection vs. Temperature
R1224N332E
30
25
20
15
10
-40
-15
10
35
60
85
Temperature Topt(˚C)
37
R1224N
10) EXT “H” Output Current vs. Temperature
R1224N332E
-10
-15
-20
-25
-40
-15
10
35
60
85
Temperature Topt(˚C)
11) EXT “L” Output Current vs. Temperature
R1224N332E
50
40
30
20
-40
-15
10
35
60
85
Temperature Topt(˚C)
12) Load Transient Response
R1224N332G L=10uH VIN=4.8V
R1224N332G L=10uH VIN=4.8V
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
2000
1800
1600
1400
1200
1000
800
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2000
1800
1600
1400
1200
1000
800
600
600
400
400
200
200
0
0
-0
-0
0
1E-04 2E-04 3E-04 4E-04
-0.04 -0.02
0
0.02 0.04 0.06 0.08
Time(sec)
Time(sec)
38
R1224N
R1224N332G L=10uH VIN=10V
R1224N332G L=10uH VIN=10V
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
2000
1800
1600
1400
1200
1000
800
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2000
1800
1600
1400
1200
1000
800
600
600
400
400
200
200
0
0
-0.0002 -0.0001 0.0000 0.0001 0.0002 0.0003 0.0004
-0.04 -0.02
0
0.02 0.04 0.06 0.08
Time(sec)
Time(sec)
R1224N332H L=10uH VIN=4.8V
R1224N332H L=10uH VIN=4.8V
3.50
2000
1800
1600
1400
1200
1000
800
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2000
1800
1600
1400
1200
1000
800
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
600
600
400
400
200
200
0
0
-2E-04 -1E-04
0
1E-04 2E-04 3E-04 4E-04
-0.04 -0.02
0
0.02 0.04 0.06 0.08
Time(sec)
Time(sec)
R1224N332H L=10uH VIN=10V
R1224N332H L=10uH VIN=10V
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
2000
1800
1600
1400
1200
1000
800
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
2000
1800
1600
1400
1200
1000
800
600
600
400
400
200
200
0
0
-2E-04 -1E-04
0
1E-04 2E-04 3E-04 4E-04
-2E-04 -1E-04
0
0.0001 0.0002 0.0003 0.0004
Time(sec)
Time(sec)
39
R1224N
R1224N332M L=27uH VIN=4.8V
R1224N332M L=27uH VIN=4.8V
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
2000
1800
1600
1400
1200
1000
800
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2000
1800
1600
1400
1200
1000
800
600
600
400
400
200
200
0
0
-2E-04 -1E-04
0
0.0001 0.0002 0.0003 0.0004
-0.04 -0.02
0
0.02 0.04 0.06 0.08
Time(sec)
Time(sec)
R1224N332M L=27uH VIN=10V
R1224N332M L=27uH VIN=10V
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
2000
1800
1600
1400
1200
1000
800
3.50
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2000
1800
1600
1400
1200
1000
800
600
600
400
400
200
200
0
0
-2E-04 -1E-04
0
1E-04 2E-04 3E-04 4E-04
-0.04 -0.02
0
0.02 0.04 0.06 0.08
Time(sec)
Time(sec)
13) UVLO Voltage vs. Temperature
R1224N332E
2.20
2.15
2.10
2.05
2.00
1.95
1.90
-40
-15
10
35
60
85
Temperature Topt(˚C)
40
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