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NCP1595 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. NCP1595
Description  Current Mode PWM Converter for Low Voltage Outputs
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1595 Datasheet(HTML) 3 Page - ON Semiconductor

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NCP1595, NCP1595A
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C for typical value, −40°C v TA v 85°C for min/max values unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
Operating Voltage
VIN
4.0
5.5
V
Under Voltage Lockout Threshold
VUVLO
3.2
3.5
3.8
V
Under Voltage Lockout hysteresis
VUVLO_HYS
180
mV
P FET Leakage Current (Pin 5, 4)
TA = 25°C
TA = −40°C to 85°C
ILEAK−P
1.0
10
15
mA
N FET Leakage Current (Pin 3, 2)
TA = 25°C
TA = −40°C to 85°C
ILEAK−N
1.0
10
15
mA
FEEDBACK VOLTAGE
FB Input Threshold (TA = −40°C to 85°C)
VFB
0.788
0.800
0.812
V
FB Input Current
IFB
10
100
nA
Overvoltage Protect Higher than FB Threshold (TA = 25°C)
VOVP
2.0
5.0
10.0
%
THERMAL SHUTDOWN
Thermal Shutdown Threshold (Note 5)
TSHDN
TBD
160
°C
Hysteresis
TSDHYS
30
°C
PWM SMPS MODE
Minimum ON−Time
TONMIN
100
ns
Switching Frequency (TA = −40°C to 85°C)
FOSC
0.8
1.0
1.2
MHz
Internal PFET ON−Resistance (ILX = 100 mA, VIN = 5.0 V, TA = 25°C)
(Note 5)
RDS(ON)_P
0.2
0.3
W
Internal NFET ON−Resistance (ILX = 100 mA, VIN = 5.0 V, TA = 25°C)
(Note 5)
RDS(ON)_N
0.15
0.22
W
Maximum Duty Cycle
DMAX
100
%
Soft−Start Time (VIN = 5.0 V, Vo = 1.2 V, ILOAD = 0 mA, TA = 25°C) (Note 6)
TSS
1.0
ms
Main PFET Switch Current Limit (Note 5)
ILIM
2.0
2.5
A
ENABLE (NCP1595A)
Enable Threshold High (NCP1595A Only)
VEN_H
1.8
V
Enable Threshold Low
VEN_L
0.4
V
Enable bias current ( EN = 0 V)
IEN
500
TBD
nA
Total Device
Quiescent Current Into VCCP (VIN = 5 V, VFB = 1.0 V, TA = 25°C)
ICCP
10
mA
Quiescent Current Into VCC (VIN = 5 V, VFB = 1.0 V, TA = 25°C)
ICC
900
mA
Shutdown Quiescent Current into VCC and VCCP (NCP1595A Only)
(EN = 0, VIN = 5 V, VFB = 1.0 V, TA = 25°C)
ICC_SD
1.5
3.0
mA
5. Values are design guarantee.
6. Design guarantee, value depends on voltage at VOUT.


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