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参数资料
| 型号： | NCP1421LEDEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP1421LED |
| 设计资源： | NCP1421LEDEVB BOM NCP1421LEDEVB Schematic NCP1421LEDEVB Gerber Files |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 600mA |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 3.5V |
| 输入电压： | 3.6V |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCP1421 |
| 其它名称： | NCP1421LEDEVBOS |
NCP1421
ELECTRICAL CHARACTERISTICS (V OUT = 3.3 V, T A = 25 ° C for typical value, ?40 ° C v T A v 85 ° C for min/max values unless
otherwise noted.)
Characteristic
Operating Voltage
Output Voltage Range
Reference Voltage
(V OUT = 3.3 V, I LOAD = 0 m A, C REF = 200 nF, T A = 25 ° C)
Reference Voltage
(V OUT = 3.3 V, I LOAD = 0 m A, C REF = 200 nF, T A = ?40 ° C to 85 ° C)
Reference Voltage Temperature Coefficient
Reference Voltage Load Current
Symbol
V IN
V OUT
V REF_NL
V REF_NL
TC VREF
I REF
Min
1.0
1.5
1.183
1.174
?
?
Typ
?
?
1.200
?
0.03
2.5
Max
5.0
5.0
1.217
1.220
?
?
Unit
V
V
V
V
mV/ ° C
mA
(V OUT = 3.3 V, V REF = V REF_NL " 1.5% C REF = 1.0 m F) (Note 5 )
Reference Voltage Load Regulation
(V OUT = 3.3 V, I LOAD = 0 to 100 m A, C REF = 1.0 m F)
Reference Voltage Line Regulation
(V OUT from 1.5 V to 5.0 V, C REF = 1.0 m F)
FB Input Threshold (I LOAD = 0 mA, T A = 25 ° C)
FB Input Threshold (I LOAD = 0 mA, T A = ?40 ° C to 85 ° C)
LBI Input Threshold (I LOAD = 0 mA, T A = ?40 _ C to 85 _ C)
LBI Input Threshold (T A = 25 _ C)
Internal NFET ON?Resistance
Internal PFET ON?Resistance
LX Switch Current Limit (N?FET) (Note 7)
Operating Current into BAT
V REF_LOAD
V REF_LINE
V FB
V FB
V LBI
V LBI
R DS(ON)_N
R DS(ON)_P
I LIM
I QBAT
?
?
1.192
1.184
1.162
1.182
?
?
?
?
0.05
0.05
1.200
?
1.200
0.3
0.3
1.5
1.3
1.0
1.0
1.208
1.210
1.230
1.218
?
?
?
3
mV
mV/V
V
V
V
V
W
W
A
m A
(V BAT = 1.8 V, V FB = 1.8 V, V LX = 1.8 V, V OUT = 3.3 V)
Operating Current into OUT (V FB = 1.4 V, V OUT = 3.3 V)
LX Switch MAX. ON?Time (V FB = 1.0 V, V OUT = 3.3 V, T A = 25 _ C)
LX Switch MIN. OFF?Time (V FB = 1.0 V, V OUT = 3.3 V, T A = 25 _ C)
FB Input Current
True?Cutoff Current into BAT
I Q
t ON
t OFF
I FB
I BAT
?
0.46
?
?
?
8.5
0.72
0.12
1.0
50
14
1.15
0.22
50
?
m A
m s
m s
nA
nA
(LBI/EN = GND, V OUT = 0, V IN = 3.3 V, LX = 3.3 V)
BAT?to?LX Resistance (V FB = 1.4 V, V OUT = 3.3 V) (Note 7)
LBI/EN Input Current
LBO Low Output Voltage (V LBI = 0, I SINK = 1.0 mA)
Soft?Start Time (V IN = 2.5 V, V OUT = 5.0 V, C REF = 200 nF) (Note 6)
EN Pin Shutdown Threshold (T A = 25 ° C)
Thermal Shutdown Temperature (Note 7)
Thermal Shutdown Hysteresis (Note 7)
R BAT_LX
I LBI
V LBO_L
T SS
V SHDN
T SHDN
T SDHYS
?
?
?
?
0.35
?
?
100
1.5
?
1.5
0.5
?
30
?
50
0.2
20
0.67
145
?
W
nA
V
ms
V
° C
° C
5. Loading capability increases with V OUT.
6. Design guarantee, value depends on voltage at V OUT.
7. Values are design guaranteed.
http://onsemi.com
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