BD8964FVM-TR Rohm Semiconductor, BD8964FVM-TR Datasheet - Page 2

• Manufacturer Part Number: BD8964FVM-TR
• Description: IC SWITCHING REG W/MOSFET MSOP8
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of BD8964FVM-TR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 1.8 V
• Current - Output: 1.2A
• Frequency - Switching: 1MHz
• Voltage - Input: 4 V ~ 5.5 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Electrical Characteristics
●Block Diagram, Application Circuit
●Pin No. & function table
© 2009 ROHM Co., Ltd. All rights reserved.
BD8964FVM
www.rohm.com
◎ (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
0.475
SI
S
ource
nk current
Pin No.
Fig.1 BD8964FVM View
Max3.25(include.BURR)
1
2
3
4
5
6
7
8
Parameter
2.9±0.1
0.65
8
1
C
D 8 9
6
urrent
CC
5
4
4
=5V, EN=V
1PIN MARK
0.22
Lot No.
0.08 S
+0.05
S
-0.04
CC
Pin name
PGND
PV
, R
GND
ADJ
V
ITH
SW
EN
4
CC
1
0.145
CC
Symbol
V
V
T
=20kΩ, R
R
R
I
V
F
V
V
I
+6
THSO
UVLO1
UVLO2
LATCH
-4
I
T
THSI
I
I
STB
OSC
ENH
ONP
ONN
CC
ENL
EN
ADJ
SS
+0.05
-0.03
2
=10kΩ unless otherwise specified.)
Output voltage detect pin
GmAmp output pin/Connected phase compensation capacitor
Enable pin(Active High)
Ground
Nch FET source pin
Pch/Nch FET drain output pin
Pch FET source pin
VCC power supply input pin
0.78
3.65
Min.
2.0
0.8
3.6
0.5
10
10
1
-
-
-
-
-
-
2/13
1
GND
Typ.
0.80
3.90
EN
V
250
350
250
Gm Amp.
ADJ
3.8
20
20
0
1
1
1
2
CC
V
Start
Soft
REF
3
2
SLOPE
ITH
V
Fig.2 BD8964FVM Block Diagram
CC
UVLO
Max.
0.82
450
600
500
TSD
0.8
1.2
4.0
4.2
10
10
Current
Comp.
V
2
3
-
-
-
CC
OSC
PIN function
CLK
R Q
S
MHz
Unit
mΩ
mΩ
ms
ms
μA
μA
μA
μA
μA
V
V
V
V
V
Current
Protect
Sense/
Driver
Logic
+
EN=GND
Standby mode
Active mode
V
P
P
V
V
V
V
V
SCP/TSD operated
EN
VCC
VCC
ADJ
ADJ
CC
CC
ADJ
=5V
=4→0V
=0→4V
Technical Note
=H
=L
=H
2009.05 - Rev.A
=5V
=5V
Conditions
8
7
6
5
4
V
PV
SW
PGND
GND
CC
CC
Input
Output