参数资料
型号: BD8649EFV-E2
厂商: Rohm Semiconductor
文件页数: 1/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ HTSSOPB20
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1 V ~ 12.6 V
输入电压: 4.5 V ~ 18 V
PWM 型: 电流模式
频率 - 开关: 100kHz ~ 600kHz
电流 - 输出: 3A
同步整流器:
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-VSSOP(0.173",4.40mm 宽)
包装: 带卷 (TR)
供应商设备封装: 20-HTSSOP-B
Single-chip Type with Built-in FET type Switching Regulators
Flexible Step-down
Switching Regulator
with Built-in Power MOSFET
BD8649EFV
No.10027EAT45
● Description
The BD8649EFV is a synchronous step-down switching regulator that integrates 2 low resistances N-channel MOSFETs.
It achieves 3A continuous output current over a wide input supply range.
Current mode operation provides fast transient response and easy phase compensation.
● Feature
1) Synchronous rectification with built-in FET type DC/DC converter
2) 3.0A output current
3) Range of operation power-supply voltage 4.5V ~ 18V
4) Reference voltage FB 0.8V±1%
5) Programmable frequency 100kHz ~ 600kHz
6) Over current protection function
7) Thermal shutdown function
8) Under voltage protection
9) Soft start time out function / Soft start delay circuit
10) Programmable OFFLATCH time
● Applications
FPD,DVD,HDD Recorder,STB,Amusement,Other
● Absolute maximum rating (Ta=25 ℃ )
Parameter
Input supply voltage
BOOT terminal voltage
EN terminal voltage
Symbol
V IN
V BOOT
V EN
Ratings
20
28
GND-0.3 ~ V IN +0.3
Unit
V
V
V
Input terminal voltage
V INP
*1
GND-0.3 ~ 7
V
3.2
SW terminal voltage
Output current
Power dissipation
Operating temperature
Storage temperature
V SW
I OUT
Pd
Topr
Tstg
GND-0.3 ~ V IN +0.3
3.5 *2
*2
-20 ~ 85
-55 ~ 150
V
A
W
*1 V INP Application terminal: SS/DELAY, FB, FC, RT, PSET
*2 (70mm×70mm, thickness 1.6mm, and four layer glass epoxy substrates)When mounting substrate and the package
back exposure part are connected with solder
Operating at higher than Ta=25 ℃ , 25.6mW shall be reduced per 1
● Operation condition
Parameter
Input supply voltage
Output current
Symbol
V IN
I OUT
Min.
4.5
-
Ratings
Typ.
-
-
Max.
18.0
3.0
Unit
V
A
*
This product is not designed for protection against radioactive rays.
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
1/13
2010.09 - Rev.A
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