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NCP1522 Datasheet(PDF) 4 Page - ON Semiconductor

Part No. NCP1522
Description  3.0 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1522 Datasheet(HTML) 4 Page - ON Semiconductor

 
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NCP1522
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4
ELECTRICAL CHARACTERISTICS (Typical values are referenced to TA = +25°C, Min and Max values are referenced −40°C to
+85
°C ambient temperature, unless otherwise noted, operating conditions VIN = 3.6 V, VOUT = 1.8 V, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Input Voltage Range
VIN
2.7
5.5
V
Undervoltage Lockout (VIN Falling)
VUVLO
2.3
2.5
2.6
V
Quiescent Current (PFM No Load)
Iq
60
95
mA
Standby Current, EN Low
Istb
0.3
1.2
mA
Oscillator Frequency
Fosc
2.400
3.0
3.600
MHz
Peak Inductor Current
ILIM
1200
mA
Feedback Reference Voltage
Vref
0.6
V
FB Pin Tolerance
VFBtol
−3.0
3.0
%
Reference Voltage Line Regulation
DVFB
0.1
%
Output Voltage Accuracy (Note 4)
VOUT
−3%
Vnom
+3%
V
Minimum Output Voltage
VOUT
0.9
V
Maximum Output Voltage
VOUT
3.3
V
Output Voltage Line Regulation (Vin = 2.7–5.5)
Io = 200 mA
DVOUT
0.1
%
Voltage Load Regulation
(IO = 200 mA to 300 mA)
(IO = 200 mA to 600 mA)
VLOADREG
0.0005
0.001
%/mA
%/mA
Load Transient Response (300 mA to 600 mA Load Step, Trise 1.0
ms)
VOUT
35
mV
Duty Cycle
100
%
P−Ch On−Resistance
RLxH
300
m
W
N−Ch On−Resistance
RLxL
300
m
W
P−Ch Leakage Current
ILeakH
0.05
mA
N−Ch Leakage Current
ILeakL
0.01
mA
Enable Pin High
VENH
1.2
V
Enable Pin Low
VENL
0.4
V
EN << H >> Input Current, EN = 3.6 V
IENH
2.0
mA
Soft−Start Time
Tstart
350
500
ms
Thermal Shutdown Threshold
TSD
160
°C
Thermal Shutdown Hysteresis
TSDH
25
°C
4. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).


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