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R1224N
10
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OUTPUT CURRENT AND SELECTION OF EXTERNAL COMPONENTS
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Inductor
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R1224N
14
TIMING CHART
V
IN
UVLO Voltage
UVLO Reset
V
OUT
Set Output Voltage
V
OUT
Set Output
Voltage
V
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Set Output
Voltage
V
OUT
Set Output Voltage
Protection Circuit Delay Time
Reset Protection
Stable
Operation
Stable
Operation
Stable
Operation
Soft Start
CE
EXT
V
OUT
Soft Start
Soft Start
Soft Start
Input Voltage
Rising Time
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R1224N
15
TEST CIRCUITS
A)
Output Voltage, Oscillator Frequency, CE "H" Input Voltage, CE "L" Input Voltage, Soft-start time
EXT
GND
V
OUT
V
IN
CE
C1
D1
+
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V
C2
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(V
FB
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B)
Supply Current 1
C)
Standby Current
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GND
V
IN
CE
A
V
OUT
(V
FB
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EXT
GND
V
OUT
(V
FB
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V
IN
CE
A
D)
EXT "H" Output Current
E)
EXT "L" Output Current
EXT
GND
V
IN
CE
A
V
OUT
(V
FB
)
EXT
GND
V
IN
CE
A
V
OUT
(V
FB
)
F)
CE "H" Input Current, CE "L" Input Current
G) Output Delay Time for Protection Circuit
EXT
GND
V
IN
CE
A
V
OUT
(V
FB
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EXT
GND
V
IN
CE
C2
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V
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R1224N
16
TYPICAL CHARACTERISTICS
1)
Output Voltage vs. Output Current (*Note)
R1224N182E L=10uH
R1224N182F L=10uH
1.830
1.850
1.810
1.790
1.770
1.750
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
V
IN
5V
V
IN
3.3V
1.850
1.770
1.790
1.810
1.830
1.750
Output Voltage V
OUT
(V)
V
IN
5V
V
IN
3.3V
Output Current I
OUT
(mA)
0.1
1
10
10000
1000
100
R1224N182G L=10uH
R1224N182H L=10uH
1.830
1.850
1.810
1.790
1.770
1.750
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
V
IN
12V
V
IN
5V
V
IN
3.3V
1.830
1.850
1.810
1.790
1.770
1.750
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
V
IN
12V
V
IN
5V
V
IN
3.3V
R1224N182L L=27uH
R1224N182M L=27uH
1.830
1.850
1.810
1.790
1.770
1.750
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
V
IN
5V
V
IN
3.3V
1.830
1.850
1.810
1.790
1.770
1.750
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
V
IN
12V
V
IN
5V
V
IN
3.3V
R1224N
17
R1224N332E L=10uH
R1224N332F L=10uH
3.34
3.40
3.30
3.28
3.24
3.20
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.38
3.36
3.32
3.26
3.22
Output Current l
OUT
(mA)
V
IN
7V
V
IN
4.8V
3.340
3.400
3.300
3.280
3.240
3.200
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.380
3.360
3.320
3.260
3.220
Output Current l
OUT
(mA)
V
IN
7V
V
IN
4.8V
R1224N332G L=10uH
R1224N332G (V
IN
=10V)
3.340
3.400
3.300
3.280
3.240
3.200
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.380
3.360
3.320
3.260
3.220
Output Current l
OUT
(mA)
V
IN
15V
V
IN
12V
V
IN
4.8V
3.32
3.35
3.30
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.34
3.33
3.31
R1224N332G (V
IN
=16V)
R1224N332H L=10uH
3.32
3.35
3.30
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.34
3.33
3.31
3.340
3.400
3.300
3.280
3.240
3.200
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.380
3.360
3.320
3.260
3.220
Output Current l
OUT
(mA)
V
IN
15V
V
IN
12V
V
IN
4.8V
R1224N
18
R1224N332L L=27uH
R1224N332M L=27uH
3.340
3.400
3.300
3.280
3.240
3.200
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.380
3.360
3.320
3.260
3.220
Output Current l
OUT
(mA)
V
IN
7V
V
IN
4.8V
3.340
3.400
3.300
3.280
3.240
3.200
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
3.380
3.360
3.320
3.260
3.220
Output Current l
OUT
(mA)
V
IN
15V
V
IN
12V
V
IN
4.8V
R1224N332M (V
IN
=5V)
R1224N332M (V
IN
=10V)
3.32
3.35
3.30
Output Voltage V
OUT
(V)
3.34
3.33
3.31
Output Current l
OUT
(A)
0
1
2
3
4
5
3.32
3.35
3.30
Output Voltage V
OUT
(V)
3.34
3.33
3.31
Output Current l
OUT
(A)
0
1
2
3
4
5
R1224N332M (V
IN
=18V)
R1224N502E L=10uH
3.32
3.35
3.30
Output Voltage V
OUT
(V)
3.34
3.33
3.31
Output Current l
OUT
(A)
0
1
2
3
4
5.040
5.100
5.000
4.980
4.940
4.900
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.080
5.060
5.020
4.960
4.920
Output Current l
OUT
(mA)
V
IN
10V
V
IN
6.5V
R1224N
19
R1224N502F L=10uH
R1224N502G L=10uH
5.040
5.100
5.000
4.980
4.940
4.900
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.080
5.060
5.020
4.960
4.920
Output Current l
OUT
(mA)
V
IN
10V
V
IN
6.5V
5.040
5.100
5.000
4.980
4.940
4.900
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.080
5.060
5.020
4.960
4.920
Output Current l
OUT
(mA)
V
IN
15V
V
IN
12V
V
IN
6.5V
R1224N502G (V
IN
=10V)
R1224N502G (V
IN
=16V)
5.02
5.05
5.00
0.1
1
10
100
1000
10000
5.04
5.03
5.01
Output Voltage V
OUT
(V)
Output Current l
OUT
(mA)
5.02
5.05
5.00
Output Current l
OUT
(mA)
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.04
5.03
5.01
R1224N502H L=10uH
R1224N502L L=27uH
5.040
5.100
5.000
4.980
4.940
4.900
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.080
5.060
5.020
4.960
4.920
Output Current l
OUT
(mA)
V
IN
15V
V
IN
12V
V
IN
6.5V
5.040
5.100
5.000
4.980
4.940
4.900
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.080
5.060
5.020
4.960
4.920
Output Current l
OUT
(mA)
V
IN
10V
V
IN
6.5V
R1224N
20
R1224N502M L=27uH
5.040
5.100
5.000
4.980
4.940
4.900
Output Voltage V
OUT
(V)
0.1
1
10
100
1000
10000
5.080
5.060
5.020
4.960
4.920
Output Current l
OUT
(mA)
V
IN
15V
V
IN
12V
V
IN
6.5V
2)
Efficiency vs. Output Current (*Note)
R1224N182F (V
IN
=3.3V) CDRH127-10uH
R1224N182F (V
IN
=5.0V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N182G (V
IN
=3.3V) CDRH127-10uH
R1224N182G (V
IN
=5.0V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
R1224N
21
R1224N182G (V
IN
=12V) CDRH127-10uH
R1224N182H (V
IN
=3.3V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N182H (V
IN
=5.0V) CDRH127-10uH
R1224N182H (V
IN
=12V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N182L (V
IN
=3.3V) CDRH127-27uH
R1224N182L (V
IN
=5.0V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
22
R1224N182M (V
IN
=3.3V) CDRH127-27uH
R1224N182M (V
IN
=5.0V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N182M (V
IN
=12V) CDRH127-27uH
R1224N332E (V
IN
=7.0V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N332E (V
IN
=4.8V) CDRH127-10uH
R1224N332F (V
IN
=7.0V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
23
R1224N332F (V
IN
=4.8V) CDRH127-10uH
R1224N332G (V
IN
=12V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N332G (V
IN
=4.8V) CDRH127-10uH
R1224N332G (V
IN
=10V)
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N332G (V
IN
=16V)
R1224N332G (V
IN
=15V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
24
R1224N332H (V
IN
=12V) CDRH127-10uH
R1224N332H (V
IN
=4.8V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N332H (V
IN
=15V) CDRH127-10uH
R1224N332L (V
IN
=7.0V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N332L (V
IN
=4.8V) CDRH127-27uH
R1224N332M (V
IN
=12V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
25
R1224N332M (V
IN
=4.8V) CDRH127-27uH
R1224N332M (V
IN
=5V)
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(A)
0
1
2
3
4
5
86
88
100
98
80
Efficiency
(%)
94
96
90
92
82
84
R1224N332M (V
IN
=10V)
R1224N332M (V
IN
=18V)
Output Current l
OUT
(A)
0
1
2
3
4
5
86
88
100
98
80
Efficiency
(%)
94
96
90
92
82
84
86
88
100
98
80
Efficiency
(%)
94
96
90
92
82
84
Output Current l
OUT
(A)
0
1
2
3
4
R1224N332M (V
IN
=15V) CDRH127-27uH
R1224N502E (V
IN
=6.5V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
26
R1224N502E (V
IN
=10V) CDRH127-10uH
R1224N502F (V
IN
=6.5V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N502F (V
IN
=10V) CDRH127-10uH
R1224N502G (V
IN
=10V)
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N502G (V
IN
=16V)
R1224N502G (V
IN
=6.5V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
27
R1224N502G (V
IN
=12V) CDRH127-10uH
R1224N502G (V
IN
=15V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N502H (V
IN
=6.5V) CDRH127-10uH
R1224N502H (V
IN
=12V) CDRH127-10uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N502H (V
IN
=15V) CDRH127-10uH
R1224N502L (V
IN
=6.5V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N
28
R1224N502L (V
IN
=10V) CDRH127-27uH
R1224N502M (V
IN
=6.5V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
R1224N502M (V
IN
=12V) CDRH127-27uH
R1224N502M (V
IN
=15V) CDRH127-27uH
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
Output Current l
OUT
(mA)
0.1
1
10
100
1000
10000
30
40
100
90
0
Efficiency
(%)
70
80
50
60
10
20
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R1224N
29
3)
Ripple Voltage vs. Output Current
R1224N182E L=10uH
R1224N182F L=10uH
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
5V
V
IN
3.3V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
5V
V
IN
3.3V
R1224N182G L=10uH
R1224N182H L=10uH
V
IN
12V
V
IN
5V
V
IN
3.3V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
12V
V
IN
5V
V
IN
3.3V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
R1224N182L L=27uH
R1224N182M L=27uH
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
5V
V
IN
3.3V
V
IN
12V
V
IN
5V
V
IN
3.3V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
R1224N
30
R1224N332E L=10uH
R1224N332F L=10uH
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
7V
V
IN
4.8V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
7V
V
IN
4.8V
R1224N332G L=10uH
R1224N332H L=10uH
60
70
50
40
30
20
10
0
Output Current l
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
100
1000
10000
V
IN
15V
V
IN
12V
V
IN
4.8V
60
70
50
40
30
20
10
0
Output Current l
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
100
1000
10000
V
IN
15V
V
IN
12V
V
IN
4.8V
R1224N332L L=27uH
R1224N332M L=27uH
60
70
50
40
30
20
10
0
Output Current l
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
100
1000
10000
V
IN
7V
V
IN
4.8V
60
70
50
40
30
20
10
0
Output Current l
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
100
1000
10000
V
IN
15V
V
IN
12V
V
IN
4.8V
R1224N
31
R1224N502E L=10uH
R1224N502F L=10uH
60
70
50
40
30
20
10
0
Output Current l
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
100
1000
10000
V
IN
10V
V
IN
6.5V
60
70
50
40
30
20
10
0
Output Current l
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
100
1000
10000
V
IN
10V
V
IN
6.5V
R1224N502G L=10uH
R1224N502H L=10uH
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
15V
V
IN
12V
V
IN
6.5V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
15V
V
IN
12V
V
IN
6.5V
R1224N502L L=27uH
R1224N502M L=27uH
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
10V
V
IN
6.5V
70
30
40
50
60
20
10
0
Output Current I
OUT
(mA)
Ripple Voltage Vrpp(mV)
0.1
1
10
10000
1000
100
V
IN
15V
V
IN
12V
V
IN
6.5V
R1224N
32
4)
Output Voltage vs. Input Voltage
R1224N182E L=10uH
R1224N182F L=10uH
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
R1224N182G L=10uH
R1224N182H L=10uH
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
-1mA
-500mA
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
-1mA
-500mA
R1224N182L L=27uH
R1224N182M L=27uH
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
R1224N
33
R1224N332E L=10uH
R1224N332F L=10uH
3.40
3.34
3.36
3.38
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
3.40
3.34
3.36
3.38
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
R1224N332G L=10uH
R1224N332H L=10uH
3.40
3.34
3.36
3.38
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
-1mA
-500mA
3.40
3.34
3.36
3.38
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
-1mA
-500mA
R1224N332L L=27uH
R1224N332M L=27uH
3.40
3.34
3.36
3.38
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
3.40
3.34
3.36
3.38
3.32
3.30
3.28
3.26
3.24
3.22
3.20
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
R1224N
34
R1224N502E L=10uH
R1224N502F L=10uH
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
R1224N502G L=10uH
R1224N502H L=10uH
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
-1mA
-500mA
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
-1mA
-500mA
R1224N502L L=27uH
R1224N502M L=27uH
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
5
10
15
20
1mA
500mA
R1224N
35
5)
Output Voltage vs. Temperature
R1224N332E
R1224N122F
3.33
3.32
3.31
3.30
3.29
3.28
3.27
Temperature Topt(C)
Output Voltage V
OUT
(V)
-40
10
60
35
-15
85
1.210
1.205
1.200
1.195
1.190
Temperature Topt(C)
Output Voltage V
OUT
(V)
-40
10
60
35
-15
85
R1224N602L
R1224N102G
6.10
6.05
6.00
5.95
5.90
Temperature Topt(C)
Output Voltage V
OUT
(V)
-40
10
60
35
-15
85
1.010
1.005
1.000
0.995
0.990
Temperature Topt(C)
Output Voltage V
OUT
(V)
-40
10
60
35
-15
85
6)
Oscillator Frequency vs. Temperature
R1224N102G
R1224N102H
360
330
300
270
240
Temperature Topt(C)
Oscillator Frequency fosc(kHz)
-40
10
60
35
-15
85
600
550
500
450
400
Temperature Topt(C)
Oscillator Frequency fosc(kHz)
-40
10
35
-15
60
85
R1224N
36
R1224N102M
216
198
180
162
144
Temperature Topt(C)
Oscillator Frequency fosc(kHz)
-40
10
60
35
-15
85
7)
Supply Current vs. Temperature
R1224N332E
R1224N602L
25
20
15
10
5
0
Temperature Topt(C)
Supply Current1 Iss1(
A)
-40
10
60
35
-15
85
25
20
15
10
5
0
Temperature Topt(C)
Supply Current1 Iss1(
A)
-40
10
60
35
-15
85
R1224N602F
R1224N102G
25
20
15
10
5
0
Temperature Topt(C)
Supply Current1 Iss1(
A)
-40
10
60
35
-15
85
40
30
20
10
0
Temperature Topt(C)
Supply Current1 Iss1(
A)
-40
10
60
35
-15
85
R1224N
37
R1224N102H
R1224N102M
60
50
40
30
20
10
0
Temperature Topt(C)
Supply Current1 Iss1(
A)
-40
10
60
35
-15
85
40
30
20
10
0
Temperature Topt(C)
Supply Current1 Iss1(
A)
-40
10
60
35
-15
85
8)
Soft-start time vs. Temperature
R1224N102G
15
10
5
Temperature Topt(C)
Soft-start time Tsoft(ms)
-40
10
60
35
-15
85
9)
Delay Time for Protection vs. Temperature
R1224N332E
30
25
20
15
10
Temperature Topt(C)
-15
-40
35
85
60
10
Delay Time for Protection Tprot(ms)
R1224N
38
10) EXT "H" Output Current vs. Temperature
R1224N332E
-10
-15
-20
-25
Temperature Topt(C)
EXT "H" Output Current I
EXTH
(mA)
-40
10
60
35
-15
85
11) EXT "L" Output Current vs. Temperature
R1224N332E
50
40
30
20
Temperature Topt(C)
EXT "L" Output Current I
EXTL
(mA)
-40
10
60
35
-15
85
12) Load Transient Response
R1224N332G L=10uH V
IN
=4.8V
R1224N332G L=10uH V
IN
=4.8V
Time(sec)
-0
-0
0
1E-04 2E-04 3E-04 4E-04
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
Time(sec)
-0.04 -0.02
0
0.02
0.04
0.06
0.08
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.50
3.00
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
R1224N
39
R1224N332G L=10uH V
IN
=10V
R1224N332G L=10uH V
IN
=10V
Time(sec)
-0.0002 -0.0001 0.0000 0.0001 0.0002 0.0003 0.0004
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
Time(sec)
-0.04 -0.02
0
0.02
0.04
0.06
0.08
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.50
3.00
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
R1224N332H L=10uH V
IN
=4.8V
R1224N332H L=10uH V
IN
=4.8V
Time(sec)
-2E-04 -1E-04
0
1E-04 2E-04 3E-04 4E-04
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
Time(sec)
-0.04 -0.02
0
0.02
0.04
0.06
0.08
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.50
3.00
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
R1224N332H L=10uH V
IN
=10V
R1224N332H L=10uH V
IN
=10V
Time(sec)
-2E-04 -1E-04
0
1E-04 2E-04 3E-04 4E-04
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
Time(sec)
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
-2E-04 -1E-04
0
0.0001 0.0002 0.0003 0.0004
R1224N
40
R1224N332M L=27uH V
IN
=4.8V
R1224N332M L=27uH V
IN
=4.8V
Time(sec)
-2E-04 -1E-04
0
0.0001 0.0002 0.0003 0.0004
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
Time(sec)
-0.04 -0.02
0
0.02
0.04
0.06
0.08
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.50
3.00
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
R1224N332M L=27uH V
IN
=10V
R1224N332M L=27uH V
IN
=10V
Time(sec)
-2E-04 -1E-04
0
1E-04 2E-04 3E-04 4E-04
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
3.50
2.50
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
Time(sec)
-0.04 -0.02
0
0.02
0.04
0.06
0.08
3.45
3.40
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.50
3.00
1800
1600
1400
1200
1000
800
600
400
200
2000
0
Output Voltage V
OUT
(V)
Output Current I
OUT
(mA)
13) UVLO Voltage vs. Temperature
R1224N332E
2.20
2.05
2.10
2.15
2.00
1.95
1.90
Temperature Topt(C)
-15
-40
10
35
85
60
UVLO Voltage V
UVLO
(V)
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