bd9132muv ROHM Co. Ltd., bd9132muv Datasheet - Page 2

• Manufacturer Part Number: bd9132muv
• Description: Step-down Switching Regulator
• Manufacturer: ROHM Co. Ltd.

●Electrical Characteristics
●Block Diagram, Application Circuit
●Pin No. & function table
◎BD9132MUV (Ta=25℃ V
Standby current
Active current
EN Low voltage
EN High voltage
EN input current
Oscillation frequency
High side FET ON resistance
Low side FET ON resistance
ADJ Voltage
ITH
ITH
UVLO threshold voltage
UVLO release voltage
Soft start time
Timer latch time
Output Short circuit
Threshold Voltage
【BD9132MUV】
No.
Pin
10
SI
S
1
2
3
4
5
6
7
8
9
ource
nk current
Fig.1 BD9132MUV TOP View
C0.2
Parameter
1.0
PVCC
PVCC
PVCC
name
C
0.08 S
VCC
BST
20
16
SW
SW
SW
SW
SW
Pin
urrent
0.5
15
(Unit : mm)
4.0±0.1
2.1±0.1
1
D9132
SW pin
SW pin
SW pin
SW pin
SW pin
Highside FET source pin
Highside FET source pin
Highside FET source pin
Bootstrapped voltage input pin
VCC power supply input pin
5
11
0.25
6
10
Lot No.
+0.05
-0.04
CC
=PV
S
Symbol
V
V
T
CC
R
I
V
F
R
V
V
V
I
THSO
UVLO1
UVLO2
LATCH
I
T
THSI
I
I
STB
OSC
Function
ENH
ONH
SCP
CC
ENL
ONL
ADJ
EN
SS
=3.3V, EN=V
0.788
2.400
2.425
Min.
2.0
0.8
2.5
0.5
10
10
CC
-
-
-
-
-
-
-
, R
Gm Amp
EN
VREF
1
R1 R2
ADJ
=10kΩ, R
+
Start
Soft
2/15
0.800
2.500
2.550
GND
Typ.
0.40
250
Vcc
82
70
18
18
R
0
1
1
5
1
SLOPE
ITH
No.
Pin
ITH
11
12
13
14
15
16
17
18
19
20
2
V
UVLO
=5kΩ, unless otherwise specified.)
TSD
SCP
CC
C
OSC
V
Current
Comp
+
ITH
CC
Fig.2 BD9132MUV Block Diagram
PGND
PGND
PGND
name
0.812
2.600
2.700
GND
Max.
CLK
N.C.
N.C.
N.C.
ADJ
0.56
ITH
500
Pin
115
EN
0.8
1.2
R
S
10
10
98
10
2
-
-
-
Q
Current
Sense/
Protect
Driver
Logic
Ground
Output voltage detect pin
GmAmp output pin/Connected phase
compensation capacitor
Non Connection
Non Connection
Non Connection
Enable pin(High Active）
Lowside FET source pin
Lowside source pin
Lowside source pin
+
MHz
Unit
mΩ
mΩ
μA
μA
μA
μA
μA
ms
ms
V
V
V
V
V
V
PV
CC
EN=GND
Standby mode
Active mode
V
PV
PV
V
V
V
V
V
ADJ
ADJ
ADJ
EN
CC
CC
Function
CC
CC
GND
=3.3V
=3.3V→0V
=0V→3.3V
PV
PGND
=1V
=0.6V
SW
V
BST
=0.8V→0V
=3.3V
=3.3V
Conditions
CC
CC
3.3V
Input
Output