ncp1523b ON Semiconductor, ncp1523b Datasheet - Page 4

• Manufacturer Part Number: ncp1523b
• Description: 3 Mhz, 600 Ma, Highefficiency, Adjustable Output Voltage Stepdown Converter
• Manufacturer: ON Semiconductor

5. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).
ELECTRICAL CHARACTERISTICS FOR NCP1523
(Typical values are referenced to T
unless otherwise noted, operating conditions V
V
V
I
I
F
I
V
V
DV
V
V
V
DV
V
R
R
I
I
V
V
T
q
STB
LIM
LeakH
LeakL
Symbol
OSC
START
IN
UVLO
REF
FBtol
OUT
OUT
OUT
LOADREG
ENH
ENL
SWH
SWL
FB
OUT
Input Voltage Range
Under Voltage Lockout (V
Quiescent Current (Light Load Mode)
Standby Current, EN Low
Oscillator Frequency
Peak Inductor Current
Feedback Reference Voltage
FB Pin Tolerance Overtemperature
Reference Voltage Line Regulation
Output Voltage Accuracy (Note 5)
Minimum Output Voltage
Maximum Output Voltage
Output Voltage Line Regulation (V
Voltage Load Regulation (I
Duty Cycle
P−Channel On−Resistance
N−Channel On−Resistance
P−Channel Leakage Current
N−Channel Leakage Current
Enable Pin High
Enable Pin Low
Soft Start Time
A
= +25°C, Minimum and Maximum values are referenced −40°C to +85°C ambient temperature,
IN
O
Falling)
= 150 mA to 600 mA)
Rating
IN
= 3.6 V, V
IN
from 2.7 to 5.5) I
http://onsemi.com
OUT
NCP1523
= 1.2 V unless otherwise noted)
4
O
= 100 mA
2.400
−3%
Min
2.7
1.2
−3
0.001
1200
V
0.05
0.01
Typ
300
300
350
2.4
0.3
0.6
0.1
0.9
2.3
0.1
60
nom
3
3.600
Max
+3%
100
450
5.5
1.2
0.4
95
3
%/mA
MHz
Unit
mW
mW
mA
mA
mA
mA
mA
ms
%
%
%
%
V
V
V
V
V
V
V
V