BD9140MUV-E2 Rohm Semiconductor, BD9140MUV-E2 Datasheet - Page 2

• Manufacturer Part Number: BD9140MUV-E2
• Description: IC SWITCH REG 2A W/FET VQFN020
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of BD9140MUV-E2

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 2.5 V ~ 6 V
• Current - Output: 2A
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 V ~ 13.2 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Electrical Characteristics
●Pin No. & function table
© 2009 ROHM Co., Ltd. All rights reserved.
BD9141MUV
www.rohm.com
●Block Diagram, Application Circuit
◎(Ta=25℃, V
Standby current
Bias current
EN Low voltage
EN High voltage
EN input current
Oscillation frequency
Pch FET ON resistance
Nch FET ON resistance
ADJ Voltage
ITH
ITH
UVLO threshold voltage
UVLO release voltage
Soft start time
Timer latch time
Output Short circuit Threshold Voltage
SI
S
ource
nk current
Fig.1 BD9141MUV View
C0.2
1,2,3,4,5
18,19,20
Pin No.
1.0
15,16
6,7,8
0.08 S
20
16
10
12
13
14
17
11
9
C
0.5
urrent
15
4.0±0.1
2.1±0.1
1
D9141
CC
Parameter
=PV
5
11
0.25
CC
6
10
=8.0V, EN=V
Lot No.
+0.05
-0.04
S
Pin Name
VREG
PGND
PV
GND
N.C.
N.C.
ADJ
SW
Vcc
ITH
EN
CC
CC
, R
1
=8.2kΩ, R
Symbol
V
V
T
R
R
I
V
F
V
V
V
I
I
THSO
UVLO1
UVLO2
LATCH
T
I
THSI
VREG
I
STB
OSC
ONN
ENH
ONP
SCP
CC
ENL
EN
ADJ
SS
Pin Function
Pch/Nch FET drain output pin
Pch FET source pin
Non connection
VCC power supply input pin
Ground
Output voltage detect pin
GmAmp output pin/Connected phase compensation capacitor
Reference Voltage
Non connection
Enable pin(Active High)
Nch FET source pin
2
=43kΩ, unless otherwise specified.)
5V
0.788
3.90
3.95
Min.
400
2.0
0.5
0.8V
2/15
EN
10
10
Gm Amp.
1
-
-
-
-
-
-
-
ADJ
R1
VREF
Start
Soft
R2
R
ITH
ITH
Limits
0.800
SLOPE
Fig.2 BD9141MUV Block Diagram
GND
Typ.
4.10
4.20
V
300
500
150
1.6
0.4
80
20
20
0
1
2
CC
V
UVLO
C
CC
SCP
TSD
V
ITH
Current
Comp
CC
OSC
CLK
R
0.812
S
Max.
4.30
4.50
0.56
500
600
300
160
0.8
10
10
2
3
-
-
-
Q
Current
Protect
Sense/
Driver
Logic
+
KHz
Unit
mΩ
mΩ
μA
μA
μA
μA
μA
ms
ms
V
V
V
V
V
V
EN=GND
Standby mode
Active mode
V
P
P
V
V
V
V
SCP/TSD operated
V
Technical Note
2009.09 - Rev.B
EN
VCC
VCC
ADJ
ADJ
CC
CC
ADJ
PV
SW
PGND
V
GND
=8V
=8V→0V
=0V→8V
CC
=1.0V
=0.6V
=0.8V→0V
Conditions
=8V
=8V
CC
Input
Output