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NCP1423EVB

P1-P3P4-P6P7-P9P10-P12P13-P14
NCP1423, SCV1423
http://onsemi.com
4
Chip
Enable
Figure 2. Detailed Block Diagram
_ZCUR
_MSON
_CEN
_PFM
_TSDON
_MAINSW2ON
_MAINSWOFD
_SYNSW2ON
_SYNSWOFD
_V
REFOK
CONTROL LOGIC
20 mV
+
-
PFM
Voltage
Reference
LBI
9
+
-
FB
3
+
-
ZLC
+
TRUE CUTOFF
CONTROL
V
DD
GND
V
DD
GND
+
-
+
GND
R
SENSE
GND
SENSEFET™
M1
V
DD
M3
BAT
6
LX
7
OUT
5
V
BAT
4
GND
V
OUT
LBO
10
_ILIM
0.5 V
0.5 V
M2
EN
1
ADEN
8
GND
REF
2
1.2 V
NCP1423, SCV1423
http://onsemi.com
5
TYPICAL OPERATING CHARACTERISTICS
1.180
1.185
1.190
1.195
1.200
1.210
0.0
0.2
0.4
0.6
0.8
1.0
−40 −20 0 20 40 60 80 10
0
T
A
, AMBIENT TEMPERATURE, (°C)
R
DS(ON)
, SWITCH ON RESISTANCE
(
W)
P−FET (M2)
N−FET (M1)
V
OUT
= 3.3 V
−50 −25
0 25 50 75 100
T
A
, AMBIENT TEMPERATURE (°C)
V
REF
, REFERENCE VOLTAGE (V)
0.44
0.46
0.48
0.50
0.52
0.54
−50 −25
0 25 50 75 100
0
3
6
9
12
−50 0 25 50 75 10
0
T
A
, AMBIENT TEMPERATURE (°C)
I
Q
, OPERATION CURRENT (mA)
Figure 3. Reference Voltage vs. Output Current
Figure 4. Reference Voltage vs. Voltage at OUT Pi
n
Figure 5. Reference Voltage vs. Temperature Figure 6. Switch ON Resistance vs. Temperature
Figure 7. Low Battery Detect Voltage vs.
Temperature
Figure 8. Operation Current vs. Temperature
1.15
1.17
1.19
1.21
1.23
1 10 100 1000
C
REF
= 0.1 mF
V
IN
= 1.2 V
V
OUT
= 3.3 V
T
A
= 25°C
T
A
, AMBIENT TEMPERATURE (°C)
V
LBI
, LOW BATTERY DETECT VOLTAGE (V)
I
LOAD
, OUTPUT CURRENT (mA)
V
REF
, REFERENCE VOLTAGE (V)
1.13
1.15
1.23
1.25
C
REF
= 0.1 mF
I
REF
= 0 mA
T
A
= 25°C
V
OUT
, VOLTAGE AT OUT PIN, (V)
V
REF
, REFERENCE VOLTAGE (V)
V
OUT
= 3.3 V
C
REF
= 0.1 mF
I
REF
= 0 mA
1.5 2 2.5 3 3.5 4 4.5 5
1.17
1.25
1.27
1.19
1.21
1.205
0.56
T
A
= 25°C
V
OUT
= 3.3 V
−25
15
18
NCP1423, SCV1423
http://onsemi.com
6
TYPICAL OPERATING CHARACTERISTICS
0.8
1.0
1.2
1.4
1.6
2.0
−50 −25
0 25 50 75 100
Figure 9. LBI Input Current vs. Temperature
Figure 10. Shutdown Current vs. Temperature
Figure 11. ADEN Pin Input Current vs.
Temperature
Figure 12. Feedback Threshold Voltage vs.
Temperature
Figure 13. L
X
Switch Maximum ON Time vs.
Temperature
Figure 14. L
X
Switch Minimum OFF Time vs.
Temperature
T
A
, AMBIENT TEMPERATURE (°C)
t
ON
, L
X
SWITCH MAXIMUM ON TIME (
m
s)
0
1
2
3
4
−50 0 25 50 75 100
T
A
, AMBIENT TEMPERATURE (°C)
I
LBI
, LBI INPUT CURRENT (nA)
V
OUT
= 3.3 V
−25
5
6
0.0
2.5
5.0
7.5
10.0
−50 0 25 50 75 10
0
T
A
, AMBIENT TEMPERATURE (°C)
I
BAT_SD
, SHUTDOWN CURRENT (mA)
V
OUT
= 3.3 V
−25
12.5
15.0
25
50
75
100
125
−50 0 25 50 75 100
T
A
, AMBIENT TEMPERATURE (°C)
I
ADEN
, ADEN PIN INPUT CURRENT (nA)
−25
150
175
0.47
0.48
0.49
0.50
0.51
−50 0 25 50 75 10
0
T
A
, AMBIENT TEMPERATURE (°C)
V
FB
, FEEDBACK THRESHOLD VOLTAGE (V)
V
OUT
= 3.3 V
−25
0.52
0.53
1.8
V
OUT
= 3.3 V
0.14
0.16
0.18
0.20
0.22
0.26
−50 −25
025507510
0
T
A
, AMBIENT TEMPERATURE (°C)
t
OFF
, L
X
SWITCH MINIMUM OFF TIME (ms)
0.24
V
OUT
= 3.3 V
P1-P3P4-P6P7-P9P10-P12P13-P14

NCP1423EVB

Mfr. #:
Buy NCP1423EVB
Manufacturer:
ON Semiconductor
Description:
Power Management IC Development Tools ANA NCP1423 EVAL BOARD
Lifecycle:
New from this manufacturer.
Delivery:
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