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NCP1521 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - ON Semiconductor

๋ถ€ํ’ˆ๋ช… NCP1521
์ƒ์„ธ๋‚ด์šฉ  1.5 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter
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์ œ์กฐ์‚ฌ  ONSEMI [ON Semiconductor]
ํ™ˆํŽ˜์ด์ง€  http://www.onsemi.com
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ELECTRICAL CHARACTERISTICS (Typical values are referenced to TA = +25ยฐC, Min and Max values are referenced โˆ’40ยฐC to
+85
ยฐC 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
โˆ’
5.5
V
Undervoltage Lockout (VIN Falling)
VUVLO
2.3
2.5
2.6
V
Quiescent Current
PFM No Load
Iq
โˆ’
30
45
mA
Standby Current, EN Low
Istb
โˆ’
0.3
1.2
mA
Oscillator Frequency
Fosc
1.3
1.5
1.8
MHz
Peak Inductor Current
ILIM
โˆ’
1200
โˆ’
mA
Feedback Reference Voltage
Vref
โˆ’
0.6
โˆ’
V
FB Pin Tolerance Overtemp @ Iout = 100 mA
VFBtol
โˆ’3.0
โˆ’
3.0
%
Reference Voltage Line Regulation
DVFB
โˆ’
0.1
โˆ’
%
Output Voltage Accuracy @ Iout = 100 mA (Note 5)
VOUT
โˆ’3%
Vnom
+3%
V
Minimum Output Voltage
VOUT
โˆ’
0.9
โˆ’
V
Maximum Output Voltage
VOUT
โˆ’
3.3
โˆ’
V
Output Voltage Line Regulation (Vin = 2.7โ€“5.5)
Io = 100 mA
DVOUT
โˆ’
0.1
โˆ’
%
Voltage Load Regulation
(IO = 100 mA to 300 mA)
(IO = 100 mA to 600 mA)
VLOADREG
โˆ’
โˆ’
0.0005
0.001
โˆ’
โˆ’
%/mA
%/mA
Load Transient Response (300 mA to 600 mA Load Step, Trise 10
ms)
VOUT
โˆ’
50
โˆ’
mV
Duty Cycle
โˆ’
โˆ’
โˆ’
100
%
Pโˆ’Ch Onโˆ’Resistance
RLxH
โˆ’
300
โˆ’
m
W
Nโˆ’Ch Onโˆ’Resistance
RLxL
โˆ’
300
โˆ’
m
W
Pโˆ’Ch Leakage Current
ILeakH
โˆ’
0.05
โˆ’
mA
Nโˆ’Ch Leakage Current
ILeakL
โˆ’
0.01
โˆ’
mA
Enable Pin High
VENH
1.2
โˆ’
โˆ’
V
Enable Pin Low
VENL
โˆ’
โˆ’
0.4
V
EN << H >> Input Current, EN = 3.6 V
IENH
โˆ’
2.0
โˆ’
mA
Softโˆ’Start Time
Tstart
โˆ’
350
500
ms
Thermal Shutdown Threshold
TSD
โˆ’
160
โˆ’
ยฐC
Thermal Shutdown Hysteresis
TSDH
โˆ’
25
โˆ’
ยฐC
5. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).


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