NR111E Datasheet, PDF (3/13 Pages) Sanken electric – Light Load High Efficiency

Light Load High Efficiency, 31V, Buck Regulator
NR110E series
Oct/23/2012
Electrical Characteristics
Parameter
Reference voltage
Output voltage temperature
coefficient
NR111E
Switching frequency
NR119E
Line regulation
Symbol
MIN
V_REF
0.784
⊿V_REF/⊿T ―
280
f_SW
291
(8)
V_Line
―
Load regulation
(8)
V_Load
―
NR111E
Over current protection
starting current
NR119E
I_S1
―
I_S2
―
I_S1
―
I_S2
―
Supply Current
I_IN
―
Shutdown Supply Current
I_IN(off)
0
SS Pin
Source current
at low level
voltage
I_EN/SS
6
EN Pin
Sink current
Threshold voltage
I_EN
V_C/EH
0.7
ISET Pin
Open voltage
V_ISET
Max on-duty
(8)
D_MAX
―
NR111E
―
Minimum on-time
(8)
NR119E
T_ON(MIN)
―
Thermal shutdown threshold
temperature
(8)
TSD
151
Thermal shutdown
restart hysteresis
(8) _{TSD_hys}
―
of temperature
(8) _{Guaranteed by design, not tested.}
Ratings
TYP
0.800
±0.05
350
364
50
50
1.5
5.5
0.9
2.8
1
1
MAX
0.816
―
420
437
―
―
―
―
―
―
―
―
Ta = 25°C
Units
Test conditions
V V_IN = 12V，I_O = 1.0A
mV/°C
V_IN = 12V, I_O = 1.0A
40°C to +85°C
kHz
V_IN=12V, V_O=5.0V,
I_O=1A
mV ^{VIN=8V～31V, VO =5.0V,}
I_O=1A
mV
V_IN=12V, V_O=5.0V,
IO=0.1A～2.0A
V_IN =12V, V_O =5.0V
ISET=OPEN
V_IN =12V, V_O =5.0V
A
ISET=SHORT
VIN=12V, V_O =5.0V
ISET=OPEN
V_IN =12V, V_O =5.0V
ISET=SHORT
mA
V_IN = 12V
V_EN=10kΩ pull up to V_IN
μA
V_IN =12V, I_O =0A,
V_EN=0V
10
14
μA V_SS=0V, V_IN =12V
20
50
μA V_EN= 10V
1.4
2.1
V V_IN =12V
1.5
V V_IN =12V
90
―
%
150
―
nsec
150
―
165
―
°C
20
―
°C
Rev.1.0
SANKEN ELECTRIC CO., LTD.
3
http://www.sanken-ele.co.jp