BD9130EFJ Datasheet, PDF (2/15 Pages) Rohm – Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9130EFJ
Technical Note
●Electrical Characteristics
◎BD9130EFJ (Ta=25℃, VCC=PVCC=3.3V, EN=VCC, R1=10kΩ, R2=5kΩ, unless otherwise specified.)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Standby Current
ISTB
-
0
10
μA
Bias Current
ICC
-
250
450
μA
EN Low Voltage
VENL
-
GND
0.8
V
EN High Voltage
VENH
2.0
VCC
-
V
EN Input Current
IEN
-
1
10
μA
Oscillation Frequency
Pch FET ON Resistance*¹
Nch FET ON Resistance*¹
FOSC
0.8
1
1.2
MHz
RONP
-
200
400
mΩ
RONN
-
160
350
mΩ
ADJ Reference Voltage
VADJ
0.788
0.800
0.812
V
ITH SINK Current
ITHSI
10
20
-
μA
ITH Source Current
ITHSO
10
20
-
μA
UVLO Threshold Voltage
VUVLO1
2.400
2.500
2.600
V
UVLO Hysteriesis Voltage
VUVLO2
2.425
2.550
2.700
V
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
Conditions
EN=GND
Stand-by Mode
Active Mode
VEN=3.3V
PVCC=3.3V
PVCC=3.3V
VADJ=1.0V
VADJ=0.6V
Vcc=3.3V→0V
Vcc=0V→3.3V
VOUT=1.2V→0V
●Block Diagram, Application Circuit
4.9±0.1
Max5.25(include.BURR)
(3.2)
8 76 5
4
+6
-4
VCC
EN
8
VREF
2 ^VCC
BD9130
1
0.545
234
Lot No.
0.17
+0.05
-0.03
S
1.27
0.42
+0.05
-0.04
0.08 S
0.08 M
HTSOP-J8 (Unit:mm)
Gm Amp.
Soft
Start
Current
Comp
RQ
S
SLOPE
CLK
OSC
VCC
UVLO
TSD
SCP
Current
Sense/
Protect
+
Driver
Logic
1
ADJ
3
ITH
RITH
R1 ^R2
CITH
7
PVCC
10μF
2.2μH
6
SW
Output
5
PGND
4
GND
Fig.1 BD9130EFJ TOP View
Fig.2 BD9130EFJ Block Diagram
●Pin No. & function table
Pin No.
1
2
3
4
5
6
7
8
Pin name
ADJ
VCC
ITH
GND
PGND
SW
PVCC
EN
PIN function
Output voltage detect pin
VCC power supply input pin
GmAmp output pin/Connected phase compensation capacitor
Ground
Nch FET source pin
Pch/Nch FET drain output pin
Pch FET source pin
Enable pin(Active High)
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2009.05 - Rev.A