BD9109FVM-TR Rohm Semiconductor, BD9109FVM-TR Datasheet - Page 14

• Manufacturer Part Number: BD9109FVM-TR
• Description: IC REG SW 0.8A 3.3VOUTPUT 8-MSOP
• Manufacturer: Rohm Semiconductor
• Type: Step-Down (Buck)r
• Series: -r

Specifications of BD9109FVM-TR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 800mA
• Frequency - Switching: 1MHz
• Voltage - Input: 4.5 ~ 5.5 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Power - Output: 587.4mW
• Output Voltage: 3.3 V
• Output Current: 0.8 A
• Input Voltage: 4.5 V to 5.5 V
• Switching Frequency: 1 MHz
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●Block Diagram, Application Circuit
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【BD9106FVM, BD9107FVM】
【BD9109FVM】
Fig.76 BD9106FVM,BD9107FVM TOP View
1
2
3
4
1
2
3
4
Fig.78 BD9109FVM TOP View
ADJ
ITH
EN
GND
V
ITH
EN
GND
OUT
TOP View
TOP View
PGND
PGND
PV
PV
V
V
SW
SW
CC
CC
CC
CC
8
7
6
5
8
7
6
5
1
14/28
V
OUT
EN
Fig.77 BD9106FVM,BD9107FVM Block Diagram
1
Gm Amp.
EN
V
Gm Amp.
ADJ
Start
Soft
REF
3
V
Start
Soft
Fig.79. BD9109FVM Block Diagram
REF
3
2
SLOPE
ITH
2
V
SLOPE
CC
ITH
UVLO
V
SCP
TSD
Current
Comp.
CC
UVLO
TSD
V
Current
Comp.
OSC
V
CC
CC
OSC
CLK
R Q
S
CLK
R Q
S
Current
Protect
Sense/
Driver
Logic
Current
Sense/
Protect
Driver
+
Logic
+
Technical Note
2009.05 - Rev.A
8
7
6
5
4
V
PV
SW
PGND
GND
8
7
6
5
4
CC
10µF
V
PV
SW
PGND
GND
4.7µH
CC
CC
10µF
4.7µH
CC
5V
Input
10µF
5V
Input
10µF
Output
Output