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DEV-13741

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
NCP1402
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (For all values T
A
= 25C, unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
OSCILLATOR
Switch On Time (current limit not asserted)
t
on
3.6 5.5 7.6
s
Switch Minimum Off Time t
off
1.0 1.45 1.9
s
Maximum Duty Cycle D
MAX
70 78 85 %
Minimum Startup Voltage (I
O
= 0 mA) V
start
− 0.8 0.95 V
Minimum Startup Voltage Temperature Coefficient (T
A
= −40C to 85C)
V
start
− −1.6 − mV/C
Minimum Operation Hold Voltage (I
O
= 0 mA) V
hold
0.3 − − V
Soft−Start Time (V
OUT
u 0.8 V) t
SS
0.3 2.0 − ms
LX (PIN 5)
Internal Switching N−Channel FET Drain Voltage
V
LX
− − 6.0 V
LX Pin On−State Sink Current (V
LX
= 0.4 V)
Device Suffix:
19T1
27T1
30T1
33T1
40T1
50T1
I
LX
110
130
130
130
130
130
145
180
190
200
210
215
−
−
−
−
−
−
mA
Voltage Limit V
LXLIM
0.45 0.65 0.9 V
Off−State Leakage Current (V
LX
= 6.0 V, T
A
= −40C to 85C) I
LKG
− 0.5 1.0
A
CE (PIN 1)
CE Input Voltage (V
OUT
= V
SET
x 0.96)
High State, Device Enabled
Low State, Device Disabled
V
CE(high)
V
CE(low)
0.9
−
−
−
−
0.3
V
CE Input Current (Note 6)
High State, Device Enabled (V
OUT
= V
CE
= 6.0 V)
Low State, Device Disabled (V
OUT
= 6.0 V, V
CE
= 0 V)
I
CE(high)
I
CE(low)
−0.5
−0.5
0
0.15
0.5
0.5
A
TOTAL DEVICE
Output Voltage
Device Suffix:
19T1
27T1
30T1
33T1
40T1
50T1
V
OUT
1.853
2.632
2.925
3.218
3.900
4.875
1.9
2.7
3.0
3.3
4.0
5.0
1.948
2.768
3.075
3.383
4.100
5.125
V
Output Voltage Temperature Coefficient (T
A
= −40C to +85C)
Device Suffix:
19T1
27T1
30T1
33T1
40T1
50T1
V
OUT
−
−
−
−
−
−
150
150
150
150
150
150
−
−
−
−
−
−
ppm/C
Operating Current 2 (V
OUT
= V
CE
= V
SET
+0.5 V, Note 5) I
DD2
− 13 15
A
Off−State Current (V
OUT
= 5.0 V, V
CE
= 0 V, T
A
= −40C to +85C, Note 6) I
OFF
− 0.6 1.0
A
Operating Current 1 (V
OUT
= V
CE
= V
SET
x 0.96)
Device Suffix:
19T1
27T1
30T1
33T1
40T1
50T1
I
DD1
−
−
−
−
−
−
30
39
42
45
55
70
50
60
60
60
100
100
A
5. V
SET
means setting of output voltage.
6. CE pin is integrated with an internal 10 M pullup resistor.
NCP1402
http://onsemi.com
5
100
60
80
40
20
0
3.0
2.0
3.5
2.5
1.5
4.0
40
0
1.9
604020
V
OUT
, OUTPUT VOLTAGE (V)
1.6
I
O
, OUTPUT CURRENT (mA)
Figure 3. NCP1402SN19T1 Output Voltage vs.
Output Current
Figure 4. NCP1402SN30T1 Output Voltage vs.
Output Current
V
OUT
, OUTPUT VOLTAGE (V)
6.0
5.0
4.0
3.0
1.0
Figure 5. NCP1402SN50T1 Output Voltage vs.
Output Current
I
O
, OUTPUT CURRENT (mA)
Figure 6. NCP1402SN19T1 Efficiency vs.
Output Current
I
O
, OUTPUT CURRENT (mA)
EFFICIENCY (%)
V
OUT
, OUTPUT VOLTAGE (V)
Figure 7. NCP1402SN30T1 Efficiency vs.
Output Current
I
O
, OUTPUT CURRENT (mA)
Figure 8. NCP1402SN50T1 Efficiency vs.
Output Current
I
O
, OUTPUT CURRENT (mA)
EFFICIENCY (%)
2.1
20
60
0
80
100
V
in
= 0.9 V
NCP1402SN19T1
L = 47H
T
A
= 25C
I
O
, OUTPUT CURRENT (mA)
1.7
1.8
2.0
80 100 120 140 160 180 200 0 604020 80 100 120 140 160 180 200
2.0
0604020 80 100 120 140 160 180 200 0 604020 80 100 120 140 160 180 200
0604020 80 100 120 140 160 180 200
100
60
80
40
20
0
0604020 80 100 120 140 160 180 200
EFFICIENCY (%)
V
in
= 1.2 V
V
in
= 1.5 V
V
in
= 0.9 V
V
in
= 1.2 V
V
in
= 1.5 V
V
in
= 2.5 V
V
in
= 2.0 V
NCP1402SN30T1
L = 47H
T
A
= 25C
V
in
= 0.9 V
V
in
= 1.2 V
V
in
= 1.5 V
V
in
= 4.0 V
V
in
= 2.0 V
V
in
= 3.0 V
V
in
= 0.9 V V
in
= 1.2 V
V
in
= 1.5 V
V
in
= 0.9 V V
in
= 1.2 V V
in
= 1.5 V
V
in
= 2.0 V
V
in
= 2.5 V
V
in
= 0.9 V
V
in
= 1.2 V
V
in
= 1.5 V
V
in
= 2.0 V
V
in
= 3.0 V
V
in
= 4.0 V
NCP1402SN19T1
L = 47H
T
A
= 25C
NCP1402SN50T1
L = 47H
T
A
= 25C
NCP1402SN50T1
L = 47H
T
A
= 25C
NCP1402SN30T1
L = 47H
T
A
= 25C
NCP1402
http://onsemi.com
6
100
60
80
40
20
0
0
20
40
60
80
100
3.1
2.9
2.8
3.0
2.7
3.2
60
−50
2.0
250−25
V
OUT
, OUTPUT VOLTAGE (V)
1.6
TEMPERATURE (C)
Figure 9. NCP1402SN19T1 Output Voltage vs.
Temperature
Figure 10. NCP1402SN30T1 Output Voltage vs.
Temperature
V
OUT
, OUTPUT VOLTAGE (V)
5.2
5.1
5.0
4.9
4.8
4.7
Figure 11. NCP1402SN50T1 Output Voltage vs.
Temperature
TEMPERATURE (C)
Figure 12. NCP1402SN19T1 Operating
Current 1 vs. Temperature
TEMPERATURE (C)
I
DD1
, OPERATING CURRENT 1 (mA)
V
OUT
, OUTPUT VOLTAGE (V)
Figure 13. NCP1402SN30T1 Operating
Current 1 vs. Temperature
TEMPERATURE (C)
Figure 14. NCP1402SN50T1 Operating
Current 1 vs. Temperature
TEMPERATURE (C)
I
DD1
, OPERATING CURRENT 1 (mA)
I
DD1
, OPERATING CURRENT 1 (mA)
2.1
20
80
40
0
100
TEMPERATURE (C)
1.7
1.8
1.9
50 75 100 −50 250−25 50 75 10
0
−50 250−25 50 75 100 −50 250−25 50 75 10
0
−50 250−25 50 75 100 −50 250−25 50 75 100
NCP1402SN19T1
V
OUT
= 1.9 V x0.96
Open−Loop Test
NCP1402SN30T1
V
OUT
= 3.0 V x0.96
Open−Loop Test
NCP1402SN50T1
V
OUT
= 5.0 V x0.96
Open−Loop Test
NCP1402SN19T1
V
OUT
= 1.9 V x0.96
Open−Loop Test
NCP1402SN30T1
V
OUT
= 3.0 V x0.96
Open−Loop Test
NCP1402SN50T1
V
OUT
= 5.0 V x0.96
Open−Loop Test
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

DEV-13741

Mfr. #:
Buy DEV-13741
Manufacturer:
SparkFun
Description:
Development Boards & Kits - AVR RedStick
Lifecycle:
New from this manufacturer.
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