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| NR131S Datasheet, PDF (4/15 Pages) Sanken electric – Ultra light load high efficiency | |||
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Ultra light load high efficiency,VIN=17V,Current mode Step-down Io=3A Buck Regulator IC
NR130S series
Sep/10/2013
Electrical Characteristics
Parameter
Reference voltage
Output voltage temperature
coefficient
Switching frequency
Symbol
VREF
â¿VREF/â¿T
MIN
0.780
fSW
245
Line regulation
(8)
VLine
Load regulation
(8)
VLoad
Over current protection
threshold
IS
3.1
Supply Current(Non-switching)
IIN
Shutdown Supply Current
Input Under Voltage Lockout
threshold
Charging current
SS Pin SS start voltage
SS finish voltage
IIN(off)
Vuvlo
ISS
13
Vss1
Vss2
Sink current
EN Pin
Threshold voltage
IEN
VEN
0.7
Max on-duty
(8)
DMAX
Minimum on-time
(8)
TON(MIN)
Thermal shutdown threshold
temperature
(8)
TSD
151
Thermal shutdown restart
(8)
hysteresis of temperature
(8) Guaranteed by design,not tested.
TSD_hys
Ratings
TYP
0.800
±0.05
350
50
50
4.5
MAX
0.820
455
Ta = 25°C
Units
Test conditions
V VIN = 12Vï¼Io = 1.0A
mV/°C
VIN = 12V, Io = 1.0A
ï40°C to +85°C
kHz
VIN=12V, Vo=5.0V,
Io=1A
mV
VIN = 8Vï½17V,
Vo = 5.0V, Io = 1A
mV
VIN = 12V, Vo = 5.0V,
Io = 0.1Aï½2.0A
A VIN = 12V, Vo = 5.0V
100
μA VIN= 12V, VEN=12V
1
μA VIN=12V, VEN=0V
3.9
4.4
V VIN Rising
22
31
μA VSS=0V, VIN=12V
0.5
VIN=12V
1.4
VIN=12V
5
10
μA VEN= 12V
1.3
2.1
V VIN=12V
90
% VIN=12V
170
nsec VIN=12V
165
°C VIN=12V
15
°C VIN=12V
Rev.1.2
SANKEN ELECTRIC CO., LTD.
4
http://www.sanken-ele.co.jp
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