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NCP1410 データシート(PDF) 3 Page - ON Semiconductor

部品番号. NCP1410
部品情報  250 mA Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector
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メーカー  ONSEMI [ON Semiconductor]
ホームページ  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1410 Datasheet(HTML) 3 Page - ON Semiconductor

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ELECTRICAL CHARACTERISTICS (VOUT = 3.3 V, TA = 25°C for typical value, −40°C ≤ TA ≤ 85°C for min/max values
unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Operating Voltage
VIN
1.0
5.5
V
Output Voltage Range (Adjusted by external feedback)
VOUT
VIN
5.5
V
Reference Voltage (CREF = 150 nF, under no loading, TA = 25°C)
VREF_NL
1.183
1.190
1.197
V
Reference Voltage (CREF = 150 nF, under no loading, −40°C ≤ TA ≤ 85°C)
VREF_NL_A
1.178
1.202
V
Reference Voltage Temperature Coefficient
TCVREF
0.03
mV/
°C
Reference Voltage Load Current (VOUT = 3.3 V,
VREF = VREF_NL ±1.5%, CREF = 1.0 mF) (Note 5)
IREF
2.5
mA
Reference Voltage Load Regulation (VOUT = 3.3 V,
IREF = 0 to 100 mA, CREF = 1.0 mF)
VREF_LOAD
0.015
1.0
mV
Reference Voltage Line Regulation (VOUT from 1.5 V to 5.5 V,
CREF = 1.0 mF)
VREF_LINE
0.03
1.0
mV/V
FB, LBI Input Threshold (ILOAD = 0 mA)
VFB, VLBI
1.174
1.190
1.200
V
N−FET ON Resistance
RDS(ON)−N
0.6
W
P−FET ON Resistance
RDS(ON)−P
0.9
W
LX Switch Current Limit (NFET)
ILIM
1.0
A
Operating Current into OUT (VFB = 1.4 V, i.e. No switching, VOUT = 3.3 V)
IQ
9.0
14
mA
Shutdown Current into OUT (SHDN = GND)
ISD
0.05
1.0
mA
LX Switch MAX. ON−Time (VFB = 1.0 V, VOUT = 3.3 V)
tON
1.2
1.4
1.8
mS
LX Switch MIN. OFF−Time (VFB = 1.0 V, VOUT = 3.3 V)
tOFF
0.25
0.31
0.37
mS
FB Input Current
IFB
1.5
9.0
nA
LBI Input Current
ILBI
1.5
8.0
nA
LBO Low Output Voltage (VLBI = 0, ISINK = 1.0 mA)
VLBO_L
0.05
V
SHDN Input Current
ISHDN
1.5
8.0
nA
SHDN Input Threshold, Low
VSHDN_L
0.3
V
SHDN Input Threshold, High
VSHDN_H
0.6
V
5. Loading capability increases with VOUT.
PIN FUNCTION DESCRIPTIONS
Pin #
Symbol
Pin Description
1
FB
Output Voltage Feedback Input.
2
LBI
Low−Battery Detector Input.
3
LBO
Open−Drain Low−Battery Detector Output. Output is LOW when VLBI is t1.178 V. LBO is high impedance
during shutdown.
4
REF
1.190 V Reference Voltage Output, bypass with 150 nF capacitor if this pin is not loaded, bypass with
1.0
mF if this pin is loaded up to 2.5 mA @ VOUT = 3.3 V.
5
SHDN
Shutdown Input. HIGH (
u 0.6 V) = operating; LOW (t 0.3 V) = shutdown.
6
GND
Ground.
7
LX
N−Channel and P−Channel Power MOSFET Drain Connection.
8
OUT
Power Output. OUT provides bootstrap power to the IC.


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