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BD8963EFJ-E2 Datasheet(PDF) 2 Page - Rohm

Part # BD8963EFJ-E2
Description  Low Noise High-efficiency Switching Regulator with Built-in Power MOSFET
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BD8963EFJ-E2 Datasheet(HTML) 2 Page - Rohm

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Technical Note
2/17
www.rohm.com
2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
BD8963EFJ
●
Electrical characteristics
◎
BD8963EFJ(Unless otherwise specified , Ta=25℃ VCC=5V, EN=VCC, R1=20kΩ, R2=7.5kΩ)
Parameter
Symbol
Limits
Unit
Conditions
Min.
Typ.
Max.
Standby Current
ISTB
-
5
20
µA
EN=GND
Bias Current
ICC
-
350
600
µA
EN Low Voltage
VENL
-
GND
0.3
V
Stand-by Mode
EN High Voltage
VENH
2.0
VCC
-
V
Active Mode
EN Current
IEN
-
1.25
10
µA
VEN=5V
Oscillation Frequency
FOSC
0.8
1
1.2
MHz
Pch FET ON Resistance
RONP
-
145
290
mΩ VCC=5V
Nch FET ON Resistance
RONN
-
80
160
mΩ VCC=5V
ADJ Reference Voltage
VADJ
0.788
0.800
0.812
V
COMP SINK Current
ICOSI
10
25
-
µA
VADJ=1.0V
COMP Source Current
ICOSO
10
25
-
µA
VADJ=0.6V
UVLO Threshold Voltage
VUVLO1
2.400
2.500
2.600
V
Vcc=5V→0V
UVLO Hysteresis Voltage
VUVLO2
2.425
2.550
2.700
V
Vcc=0V→5V
Soft Start Time
TSS
0.5
1
2
ms
Timer Latch Time
TLATCH
1
2
4
ms
Output Short circuit Threshold Voltage
VSCP
-
VOUT×0.5
VOUT×0.7
V
VOUT=1.0V→0V
●
Physical dimension
●
Block diagram・Application circuit
●
Pin No. & function table
Pin No.
Pin name
PIN function
1
COMP
GmAmp output pin/Connected phase compensation capacitor
2
GND
Ground
3
EN
Enable pin(Active High, Open Active)
4
VCC
VCC power supply input pin
5
SW
Pch/Nch FET drain output pin
6
SW
Pch/Nch FET drain output pin
7
N.C
Non Connect
8
ADJ
Output voltage detect pin
HTSOP-J8 (unit:mm)
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.
BD8963
Fig.1 BD8963EFJ TOP View
Fig.2 BD8963EFJ Block Diagram
TSD
Output
Input
VCC
SW
Gm Amp
R
S
Q
OSC
UVLO
+
VCC
CLK
SLOPE
Current
Comp
4
5
2
Soft
Start
Current
Sense/
Protect
+
Driver
Logic
+
VREF
COMP
ADJ
1
8
SCP
6
3
VCC
EN
GND


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