ncp1522 ON Semiconductor, ncp1522 Datasheet - Page 4

• Manufacturer Part Number: ncp1522
• Description: 3.0 Mhz, 600 Ma, Highefficiency, Low Quiescent Current, Adjustable Output Voltage Stepdown Converter
• Manufacturer: ON Semiconductor

4. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).
ELECTRICAL CHARACTERISTICS
+85°C ambient temperature, unless otherwise noted, operating conditions V
Input Voltage Range
Undervoltage Lockout (V
Quiescent Current (PFM No Load)
Standby Current, EN Low
Oscillator Frequency
Peak Inductor Current
Feedback Reference Voltage
FB Pin Tolerance
Reference Voltage Line Regulation
Output Voltage Accuracy (Note 4)
Minimum Output Voltage
Maximum Output Voltage
Output Voltage Line Regulation (V
Voltage Load Regulation
Load Transient Response (300 mA to 600 mA Load Step, Trise 1.0 ms)
Duty Cycle
P-Ch On-Resistance
N-Ch On-Resistance
P-Ch Leakage Current
N-Ch Leakage Current
Enable Pin High
Enable Pin Low
EN << H >> Input Current, EN = 3.6 V
Soft-Start Time
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Io = 200 mA
(IO = 200 mA to 300 mA)
(IO = 200 mA to 600 mA)
IN
Characteristic
Falling)
in
= 2.7–5.5)
(Typical values are referenced to T
http://onsemi.com
NCP1522
4
IN
V
A
Symbol
LOADREG
= 3.6 V, V
ILeakH
DV
V
VFBtol
ILeakL
VENH
DVFB
RLxH
VENL
= +25°C, Min and Max values are referenced -40°C to
IENH
V
V
V
V
RLxL
T
T
F
T
V
UVLO
Istb
I
V
LIM
start
SDH
OUT
OUT
OUT
OUT
I
osc
-
SD
ref
OUT
IN
q
OUT
= 1.8 V, unless otherwise noted.)
2.400
-3.0
-3%
Min
2.7
2.3
1.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.0005
Vnom
0.001
1200
0.05
0.01
Typ
300
300
350
160
2.5
0.3
3.0
0.6
0.1
0.9
3.3
0.1
2.0
60
35
25
-
-
-
-
-
3.600
Max
+3%
100
500
5.5
2.6
1.2
3.0
0.4
95
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
%/mA
%/mA
MHz
Unit
mW
mW
mA
mV
mA
mA
mA
mA
mA
°C
°C
ms
%
%
%
%
V
V
V
V
V
V
V
V