BD8649EFV-E2 Rohm Semiconductor, BD8649EFV-E2 Datasheet - Page 4

• Manufacturer Part Number: BD8649EFV-E2
• Description: IC SWITCHING REG 3A HTSSOP-B20
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of BD8649EFV-E2

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 12.6 V
• Current - Output: 3A
• Frequency - Switching: 100kHz ~ 600kHz
• Voltage - Input: 4.5 V ~ 18 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-VSSOP (0.173", 4.40mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Block Diagram
●Pin Assignment
BD8649EFV
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
No.
10
1
2
3
4
5
6
7
8
9
Symbol
PSET
VIN
VIN
VIN
NC
NC
FB
FC
RT
EN
Feedback terminal
Phase amends terminal
Frequency adjustment resistance
connection terminal
Adjust OFF LATCH time terminal
Enable input
Power supply input terminal
Power supply input terminal
Power supply input terminal
PSET
VIN
VIN
VIN
EN
NC
NC
FC
RT
FB
10
1
2
3
4
5
6
7
8
9
Description
-
-
Protect time
OSC
EN
Fig.11 Block diagram
No.
CONTROL
4/13
12
13
14
15
16
17
18
19
20
11
PWM
SS/DELAY
Symbol
PGND
PGND
PGND
BOOT
Softstart/Delay
GND
SW
SW
SW
NC
CURRENT
DET
Power GND terminal
Power GND terminal
Power GND terminal
Switching output terminal
Switching output terminal
Switching output terminal
Boot strap terminal
Soft start adjustment capacity
connection terminal
Signal GND terminal
5V
20
19
18
17
16
15
14
13
12
11
GND
SS/DELAY
NC
BOOT
SW
SW
SW
PGND
PGND
PGND
Description
-
Technical Note
2010.09 - Rev.A
VOUT