NR131D Datasheet, PDF (4/15 Pages) Sanken electric – Ultra light load high efficiency

Ultra light load high efficiency,VIN=17V,Current mode Step-down Io=3A Buck Regulator IC
NR130D series
Tentative
Sep/10/2013
Electrical Characteristics
Parameter
Reference voltage
Output voltage temperature
coefficient
Switching frequency
Symbol
V_REF
⊿V_REF/⊿T
MIN
0.780
f_SW
245
Ratings
TYP
0.800
±0.05
350
Line regulation
(8)
V_Line
50
Load regulation
(8)
V_Load
50
Over current protection
threshold
I_S
3.1
4.5
Supply Current(Non-switching)
I_IN
100
Shutdown Supply Current
Input Under Voltage Lockout
threshold
Charging current
SS Pin SS start voltage
SS finish voltage
I_IN(off)
1
Vuvlo
3.9
I_SS
Vss1
Vss2
13
22
0.5
1.4
Sink current
EN Pin
Threshold voltage
I_EN
5
V_EN
0.7
1.3
Max on-duty
(8)
D_MAX
90
Minimum on-time
(8)
T_ON(MIN)
170
Thermal shutdown threshold
temperature
(8)
TSD
151
165
Thermal shutdown restart
hysteresis of temperature
(8) _{TSD_hys}
15
Transconductance ⁽⁹⁾
Gm
750
COMP
Pin
Voltage gain
Conversion factor
Max. sink current
(9)
(9)
(9)
Av
Gcs
Isink
900
5.7
50
Max. source current ⁽⁹⁾
Isource
50
(8) _{Guaranteed by design,not tested.}
(9) _{This is applicable to only NR132D that 8 pin is a COMP terminal.}
MAX
0.820
455
4.4
31
10
2.1
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
V_IN = 8V～17V,
V_o = 5.0V, I_o = 1A
mV
V_IN = 12V, V_o = 5.0V,
I_o = 0.1A～2.0A
A V_IN = 12V, V_o = 5.0V
μA V_IN= 12V, V_EN=12V
μA V_IN=12V, V_EN=0V
V V_IN Rising
μA V_SS=0V, V_IN=12V
V_IN=12V
V_IN=12V
μA V_EN= 12V
V V_IN=12V
% V_IN=12V
nsec V_IN=12V
°C V_IN=12V
°C V_IN=12V
μA/V
V/V
A/V
μA
μA
VIN=12V
VIN=12V
VIN=12V
VIN=12V
VIN=12V
Rev.1.1
SANKEN ELECTRIC CO., LTD.
4
http://www.sanken-ele.co.jp