ncp1523b ON Semiconductor, ncp1523b Datasheet - Page 5

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

6. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).
7. Electrical values are guaranteed for drop between input and output voltages less than 4.0 V (Page 13).
ELECTRICAL CHARACTERISTICS FOR NCP1523B
(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
SWH
SWL
ENH
ENL
FB
OUT
Input Voltage Range
Under voltage Lockout (V
Quiescent Current − No Switching
Quiescent Current
Standby Current, EN Low
Oscillator Frequency
Peak Inductor Current
Feedback Reference Voltage
FB Pin Tolerance Overtemperature
Reference Voltage Line Regulation
Output Voltage Accuracy (Note 6)
Minimum Output Voltage (Note 7)
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
− Oscillator Running
A
= +25°C, Minimum and Maximum values are referenced −40°C to +85°C ambient temperature,
IN
O
Falling)
= 1 mA to 600 mA) (Note 7)
IN
Rating
= 3.6 V, V
IN
= 2.7 – 5.2) I
http://onsemi.com
OUT
NCP1523
= 1.2 V unless otherwise noted)
O
5
= 100 mA (Note 7)
2.400
−3%
Min
2.7
1.2
−3
0.001
1200
V
0.05
0.01
Typ
250
300
300
350
2.4
2.5
0.3
0.6
0.1
0.9
3.3
0.1
nom
3
3.600
+3%
Max
350
100
450
5.2
1.2
0.4
3
%/mA
MHz
Unit
mW
mW
mA
mA
mA
mA
mA
mA
ms
%
%
%
%
V
V
V
V
V
V
V
V