|
|
PDF NR131S Data sheet ( Hoja de datos )
| Número de pieza | NR131S | |
| Descripción | Buck Regulator IC | |
| Fabricantes | SANKEN | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de NR131S (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
Ultra light load high efficiency,VIN=17V,Current mode Step-down Io=3A Buck Regulator IC
NR131S
Jul./09/2015
General Descriptions
The NR131S is buck regulator ICs integrates High-side
power MOSFETs. With the current mode control, ultra
low ESR capacitors such as ceramic capacitors can be
used. The ICs can realize super-high efficiency by
performing pulse skip operation at light load condition.
The ICs have protection functions such as Over-Current
Protection (OCP), Under-Voltage Lockout (UVLO) and
Thermal Shutdown (TSD). Soft starting time can be set
up by selecting an external capacitor value. The ON/OFF
pin (EN Pin) turns the regulator on or off and helps to
achieve low power consumption requirements. The
NR131S is available in an 8-pin SOIC package.
Package
SOIC8
Features & Benefits
Current mode PWM control
Up to 94% efficiency at normal load condition
Up to 85% efficiency at light load condition
Stable with low ESR ceramic output capacitors
Built-in protection function
Over Current Protection (OCP)
Thermal Shutdown (TSD)
Under Voltage Lockout (UVLO)
Built-in phase compensation
Adjustable Soft-Start with an external capacitor
Turn ON/OFF the regulator function
Programable Pulse-Skip operation
Electrical Characteristics
3A Continuous output current
Operating input range VIN = 4.5V～17V
Output adjustable VO = 0.8V～14V
Fixed 350kHz frequency
Applications
LCD TV / Blue-ray / Set top box
Green electronic products
Other power supply
Typical Application Circuit
NR131S
C1, C2: 10μF / 25V, C4, C5: 22μF / 16V, C7: 0.1μF, C9:1800pF, C11: 220pF(Option), R1: 510kΩ , R3: 10Ω, R4: 36 kΩ, R5: 27kΩ
(VO=5.0V), R6: 12kΩ, R7:510kΩ(Option), D1: SJPJ-L4, L1: 10μH
Rev.2.0
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp
1
1 page  
Ultra light load high efficiency,VIN=17V,Current mode Step-down Io=3A Buck Regulator IC
NR131S
Jul./09/2015
(2) Output startup Io=1A
6
5
4
3
2
1
0
3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
Input Voltage VIN [V]
6
5
4
3
2
1
0
1
(5)Over Current Protection
Vin=8[V]
Vin=12[V]
Vin=16[V]
2345
Output Current IO [A]
6
5.300
5.250
5.200
5.150
5.100
5.050
5.000
4.950
4.900
4.850
4.800
4.750
4.700
0.0
(3) LoNaRd11R6eKgLuolaatdiRoeng:. VLoad
Vo=3.3V L=10uH Ta=25℃
0.5 1.0 1.5 2.0
Output CIuor[rAe]nt IO [A]
2.5
3.0
8
7
6
5
4
3
2
1
0
0
(6) Supply Current : IIN
VO=5.0V
Supply Current : IIN
3 6 9 12 15 18
Input Voltage VIN [V]
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
0.0
(4) Shutdown Supply Current : IIN(off)
NR110K,111K,114K,115K,116K,117K
VENIQ=_0oVff
5.0 10.0 15.0 20.0 25.0 30.0
InpVuINt [VVo] ltage
VIN [V]
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
0.0
(7) Switching Frequency: fSW
NR110K focs
Vo=3.3V L=10uH
1.0 2.0 3.0 4.0
OuIotp[Aut] Current
IO [A]
5.0
Rev.2.0
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp
5
5 Page 
Ultra light load high efficiency,VIN=17V,Current mode Step-down Io=3A Buck Regulator IC
NR131S
Jul./09/2015
Package outline, dimensions
SOIC8 package (Units：mm)
8765
1 2 34
Top view
Marking
*1. Product number
NR131S
*2. Lot number (three digit)
1st letter : The last digit of the year
2nd letter : Month
January to September : 1 to 9
October : O
November : N
December : D
3rd letter : manufacturing week
First week to 5th week : 1 to 5
*3. Control number (four digit)
Bottom view
Symbol
A1
A2
ｂ
D
E
E1
ｅ
Ｌ
Dimension is in millimeters(mm)
MIN TYP MAX
0.05 0.15 0.25
1.25 1.40 1.65
0.38 － 0.51
4.80 4.90 5.00
5.80 6.00 6.20
3.80 3.90 4.00
－ 1.27 －
0.45 0.6
0.8
*1 NR131S
SK *2
*3
Rev.2.0
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet NR131S.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| NR131A | Ultra light load high efficiency Buck Regulator IC | SANKEN |
| NR131S | Buck Regulator IC | SANKEN |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |