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參數資料
| 型號： | NCP1422MNR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩壓器 |
| 英文描述： | 800 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, 0.50 MM PITCH, PLASTIC, DFN-10 |
| 文件頁數： | 4/14頁 |
| 文件大?。?/td> | 142K |
| 代理商： | NCP1422MNR2 |
NCP1422
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(V
OUT
= 3.3 V, T
A
= 25
°
C for typical value, 40
°
C
otherwise noted.)
T
A
85
°
C for min/max values unless
Characteristic
Symbol
Min
Typ
Max
Unit
Operating Voltage
V
IN
1.0
5.0
V
Output Voltage Range
V
OUT
1.5
5.0
V
Reference Voltage
(V
OUT
= 3.3 V, I
LOAD
= 0
A, C
REF
= 200 nF, T
A
= 25
°
C)
V
REF_NL
1.183
1.200
1.217
V
Reference Voltage
(V
OUT
= 3.3 V, I
LOAD
= 0
A, C
REF
= 200 nF, T
A
= 40
°
C to 85
°
C)
V
REF_NL
1.174
1.220
V
Reference Voltage Temperature Coefficient
TC
VREF
0.03
mV/
°
C
Reference Voltage Load Current
(V
OUT
= 3.3 V, V
REF
= V
REF_NL
1.5% C
REF
= 1.0 F) (Note 6
)
I
REF
2.5
mA
Reference Voltage Load Regulation
(V
OUT
= 3.3 V, I
LOAD
= 0 to 100 A, C
REF
= 1.0 F)
V
REF_LOAD
0.05
1.0
mV
Reference Voltage Line Regulation
(V
OUT
from 1.5 V to 5.0 V, C
REF
= 1.0 F)
V
REF_LINE
0.05
1.0
mV/V
FB Input Threshold (I
LOAD
= 0 mA, T
A
= 25
°
C)
V
FB
1.192
1.200
1.208
V
FB Input Threshold (I
LOAD
= 0 mA, T
A
= 40
°
C to 85
°
C)
V
FB
1.184
1.210
V
LBI Input Threshold (I
LOAD
= 0 mA, T
A
= 25 C)
V
LBI
1.182
1.200
1.218
V
LBI Input Threshold (I
LOAD
= 0 mA, T
A
= 40 C to 85 C)
V
LBI
1.162
1.230
V
Internal NFET ONResistance
R
DS(ON)_N
0.3
Internal PFET ONResistance
R
DS(ON)_P
0.3
LX Switch Current Limit (NFET) (Note 8)
I
LIM
1.5
A
Operating Current into BAT
(V
BAT
= 1.8 V, V
FB
= 1.8 V, V
LX
= 1.8 V, V
OUT
= 3.3 V)
I
QBAT
1.3
3.0
A
Operating Current into OUT (V
FB
= 1.4 V, V
OUT
= 3.3 V)
I
Q
8.5
14
A
LX Switch MAX. ONTime (V
FB
= 1.0 V, V
OUT
= 3.3 V, T
A
= 25 C)
t
ON
0.46
0.72
1.15
s
LX Switch MIN. OFFTime (V
FB
= 1.0 V, V
OUT
= 3.3 V, T
A
= 25 C)
t
OFF
0.12
0.22
s
FB Input Current
I
FB
1.0
50
nA
TrueCutoff Current into BAT
(LBI/EN = GND, V
OUT
= 0 V, V
IN
= 3.3 V, LX = 3.3 V)
I
BAT_SD
50
nA
BATtoLX Resistance (V
FB
= 1.4 V, V
OUT
= 3.3 V) (Note 8)
R
BAT_LX
100
LBI/EN Input Current
I
LBI
1.5
50
nA
LBO Low Output Voltage (V
LBI
= 0 V, I
SINK
= 1.0 mA)
V
LBO_L
0.2
V
SoftStart Time (V
IN
= 2.5 V, V
OUT
= 5.0 V, C
REF
= 200 nF) (Note 7)
T
SS
1.5
20
ms
EN Pin Shutdown Threshold (T
A
= 25
°
C)
V
SHDN
0.35
0.5
0.67
V
Thermal Shutdown Temperature (Note 8)
T
SHDN
145
°
C
Thermal Shutdown Hysteresis (Note 8)
T
SDHYS
30
°
C
6. Loading capability increases with V
OUT.
7. Design guarantee, value depends on voltage at V
OUT.
8. Values are design guaranteed.
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