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BD9130EFJ Datasheet(PDF) 2 Page - Rohm

No. de Pieza. BD9130EFJ
Descripción  Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET
Descarga  15 Pages
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Fabricante  ROHM [Rohm]
Página de inicio  http://www.rohm.com
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BD9130EFJ Datasheet(HTML) 2 Page - Rohm

 
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BD9130EFJ
Technical Note
2/14
www.rohm.com
2009.05 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
Electrical Characteristics
BD9130EFJ (Ta=25℃, VCC=PVCC=3.3V, EN=VCC, R1=10kΩ, R2=5kΩ, unless otherwise specified.)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Standby Current
ISTB
-
0
10
μA
EN=GND
Bias Current
ICC
-
250
450
μA
EN Low Voltage
VENL
-
GND
0.8
V
Stand-by Mode
EN High Voltage
VENH
2.0
VCC
-
V
Active Mode
EN Input Current
IEN
-
1
10
μA
VEN=3.3V
Oscillation Frequency
FOSC
0.8
1
1.2
MHz
Pch FET ON Resistance*
1
RONP
-
200
400
mΩ
PVCC=3.3V
Nch FET ON Resistance*
1
RONN
-
160
350
mΩ
PVCC=3.3V
ADJ Reference Voltage
VADJ
0.788
0.800
0.812
V
ITH SINK Current
ITHSI
10
20
-
μA
VADJ=1.0V
ITH Source Current
ITHSO
10
20
-
μA
VADJ=0.6V
UVLO Threshold Voltage
VUVLO1
2.400
2.500
2.600
V
Vcc=3.3V→0V
UVLO Hysteriesis Voltage
VUVLO2
2.425
2.550
2.700
V
Vcc=0V→3.3V
Soft Start Time
TSS
0.5
1
2
ms
Timer Latch Time
TLATCH
1
2
3
ms
Output Short circuit Threshold Voltage
VSCP
-
VOUT×0.5
VOUT×0.7
V
VOUT=1.2V→0V
Block Diagram, Application Circuit
Pin No. & function table
Pin No.
Pin name
PIN function
1
ADJ
Output voltage detect pin
2
VCC
VCC power supply input pin
3
ITH
GmAmp output pin/Connected phase compensation capacitor
4
GND
Ground
5
PGND
Nch FET source pin
6
SW
Pch/Nch FET drain output pin
7
PVCC
Pch FET source pin
8
EN
Enable pin(Active High)
Fig.1 BD9130EFJ TOP View
Fig.2 BD9130EFJ Block Diagram
87
6
5
12
3
4
0.42
+0.05
-0.04
S
4.9
±0.1
0.545
1.27
0.17
+0.05
-0.03
Max5.25(include.BURR)
(3.2)
0.08 S
0.08 M
4
+6
-4
Lot No.
BD9130
Output
PVCC
PGND
SW
GND
Gm Amp.
2.2μH
VCC
R
S
Q
OSC
UVLO
TSD
VCC
VCC
CLK
SLOPE
EN
Current
Comp
10μF
8
7
2
6
5
4
Soft
Start
Current
Sense/
Protect
+
Driver
Logic
VREF
ITH
ADJ
RITH
CITH
3
1
R1 R2
SCP
HTSOP-J8 (Unit:mm)


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