|
|
PDF BD8301MUV Data sheet ( Hoja de datos )
| Número de pieza | BD8301MUV | |
| Descripción | High-effciency Step-up/down Switching Regulator | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BD8301MUV (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
Single-chip Type with Built-in FET Switching Regulator Series
High-efficiency Step-up/down
Switching Regulator
with Built-in Power MOSFET
BD8301MUV
No.09027ECT07
●General Description
ROHM’s highly-efficient step-up/down switching regulator BD8301MUV produces step-up/down output including 3.3 V from
1 cell of lithium battery with just one coil.
This IC adopts an original step-up/down drive system and creates a higher efficient power supply than conventional
Sepic-system or H-bridge system switching regulators.
●Features
1) Highly-efficient step-up/down DC/DC converter to be constructed just with one inductor.
2) Input voltage
2.5 V - 5.5 V
3) Output current
1 A at 3.3 V
800 mA at 5.0 V
4) Incorporates soft-start function.
5) Incorporates timer latch system short protecting function.
6) High heat radiation surface mounted package
VQFN020V4040
●Application
General portable equipment like portable audio or DSC/DVC
●Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Maximum applied power voltage
Vcc,PVCC
7.0 V
Maximum input current
Iinmax
2.0 A
Maximum input voltage
Lx1 7.0 V
Lx2 7.0 V
Power dissipation
Pd 700 mW
Operating temperature range
Topr
-25 to +85
ºC
Storage temperature range
Tstg
-55 to +150
ºC
Junction temperature
Tjmax
150 ºC
*1 When installed on a 70.0 mm × 70.0 mm × 1.6 mm glass epoxy board. The rating is reduced by 5.6 mW/°C at Ta = 25°C or more.
●Operating Conditions (Ta = 25°C)
Parameter
Power supply voltage
Output voltage
Symbol
Vcc
OUT
Voltage range
2.5 to 5.5
2.8 to 5.2
Unit
V
V
www.rohm.com
○c 2009 ROHM Co., Ltd. All rights reserved.
1/13
2009.09 - Rev.C
1 page  
BD8301MUV
●Reference Data
(Unless otherwise specified, Ta = 25°C, VCC = 3.7 V)
Technical Note
www.DataSheet4U.com
0.810
0.805
0.800
0.795
VCC=2.4V
VCC=3.7V
VCC=7.0V
VCC=5.5V
0.790
-50
0 50 100
TEMPERATURE [℃]
Fig.3 INV threshold
150
0.810
0.805
UVLO
0.800
0.795
0.790
0.0
2.0 4.0 6.0
VCC [V]
8.0
Fig.4. INV threshold (power supply property)
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
-50
0 50 100
TEMPERATURE [℃]
Fig.5 Oscillation frequency
150
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
2
345
VCC [℃]
6
Fig.6 Oscillation frequency
(power supply property)
0
-5 INV=0.5V
-10
-15
-20
-25
-30
-35
-40
0.0
0.5 1.0 1.5
FB VOLTAGE [V]
2.0
Fig.9 FB source current
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
-50
RESET
DETECT
0 50 100
TEMPARATURE [℃]
Fig.7 UVLO threshold
150
300
250
200
150
Io=500mA
VCC=2.0V VCC=3.0V
VCC=3.7V VCC=6.0V
100
50
0
-60 -10 40 90 140
TEMPERATURE [℃]
Fig.10 Lx1 Pch FET ON resistance
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
INV=1.1V
1 23
FB VOLTAGE [V]
Fig.8 FB sink current
4
300
Io=500mA
250
200
150
VCC=2.0V
VCC=3.0V
VCC=3.7V
VCC=6.0V
100
50
0
-60 -10 40 90 140
TEMPERATURE [℃]
Fig.11 Lx1 Nch FET ON resistance
www.rohm.com
○c 2009 ROHM Co., Ltd. All rights reserved.
5/13
2009.09 - Rev.C
5 Page 
BD8301MUV
●I/O Equivalence Circuit
FB
VCC
VCC
FB
Technical Note
www.DataSheet4U.com
INV
VCC
INV
VCC
VOUT,Lx2,PGND
VOUT
Lx2
VCC
PGND
STB
STB
VCC
PVCC,Lx1,PGND
PVCC
Lx1
VCC
PGND
RT
VCC
VCC
RT
www.rohm.com
○c 2009 ROHM Co., Ltd. All rights reserved.
Fig.29 I/O Equivalence Circuit
11/13
2009.09 - Rev.C
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet BD8301MUV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BD8301MUV | High-effciency Step-up/down Switching Regulator | ROHM Semiconductor |
| 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 |