參數(shù)資料
型號(hào)： NCP1411
廠商： ON SEMICONDUCTOR
元件分類： DC/DC變換器
英文描述： Sync-Rect PFM Step-Up DC-DC Converter(帶有同步整流器的PFM升壓DC-DC轉(zhuǎn)換器)
中文描述： 同步整流PFM型升壓型DC - DC轉(zhuǎn)換器（帶有同步整流器的烤瓷升壓型DC - DC轉(zhuǎn)換器）
文件頁(yè)數(shù)： 3/14頁(yè)
文件大小： 358K
代理商： NCP1411
NCP1411
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(V
OUT
= 3.3 V, T
A
= 25
°
C for typical value,
40
°
C
≤
T
A
≤
85
°
C for min/max values
unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
V
IN
1.0
5.5
V
Output Voltage Range (Adjusted by external feedback)
V
OUT
V
IN
5.5
V
Reference Voltage (C
REF
= 150 nF, under no loading, T
A
= 25
°
C)
V
REF_NL
1.183
1.190
1.197
V
Reference Voltage
(C
REF
= 150 nF, under no loading,
40
°
C
≤
T
A
≤
85
°
C)
V
REF_NL_A
1.178
1.202
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 5)
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
0.015
1.0
mV
Reference Voltage Line Regulation
(V
OUT
from 1.5 V to 5.5 V, C
REF
= 1.0 F)
V
REF_LINE
0.03
1.0
mV/V
FB, LBI Input Threshold (I
LOAD
= 0 mA)
V
FB,
V
LBI
1.174
1.190
1.200
V
N
FET ON Resistance
R
DS(ON)
N
0.6
P
FET ON Resistance
R
DS(ON)
P
0.9
LX Switch Current Limit (N
FET)
I
LIM
1.0
A
Operating Current into OUT
(V
FB
= 1.4 V, i.e. no switching, V
OUT
= 3.3 V)
I
Q
9.0
14
A
Shutdown Current into OUT (LBI/EN = GND)
I
SD
0.05
1.0
A
LX Switch MAX. ON
Time (V
FB
= 1.0 V, V
OUT
= 3.3 V)
t
ON
1.2
1.4
1.8
S
LX Switch MIN. OFF
Time (V
FB
= 1.0 V, V
OUT
= 3.3 V)
t
OFF
0.25
0.31
0.37
S
FB Input Current
I
FB
1.5
9.0
nA
Shutdown Current into BAT (LBI/EN = 0 V, V
OUT
= V
BAT
= 3.0 V)
I
LBT
50
nA
BAT to LX resistance (V
FB
= 1.4 V, V
OUT
= 3.3 V)
R
LBT_LX
100
LBI/EN Input Current
I
LBI/EN
1.5
8.0
nA
LBO Low Output Voltage (V
LBI
= 0 V, I
SINK
= 1.0 mA)
V
LBO_L
0.05
V
ENABLE (Pin 2) Input threshold, Low
V
EN
0.3
V
ENABLE (Pin 2) Input threshold, High
V
EN
0.6
V
5. Loading capability increases with V
OUT
.
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