参数资料
型号: BD8966FVM-TR
厂商: Rohm Semiconductor
文件页数: 10/19页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.8A MSOP8
标准包装: 3,000
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1 V ~ 2.5 V
输入电压: 4 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1MHz
电流 - 输出: 800mA
同步整流器:
工作温度: -25°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-VSSOP,8-MSOP(0.110",2.80mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-MSOP
BD8966FVM
Information on Advantages
Advantage 1 : Offers fast transient response with current mode control system.
Datasheet
Conventional product (Load response I O =0.1A → 0.6A)
BD8966FVM (Load response I O =0.1A → 0.6A)
V OUT
I OUT
110mV
V OUT
I OUT
90mV
Voltage drop due to sudden change in load was reduced .
Fig.22 Comparison of transient response
Advantage 2 : Offers high efficiency with synchronous rectifier
? For heavier load:
Utilizes the synchronous rectifying mode and the low on-resistance MOS FETs
incorporated as power transistor.
100
90 【 V OUT =1.5V 】
80
70
60
ON resistance of P-channel MOS FET : 350mΩ(Typ.)
ON resistance of N-channel MOS FET : 250mΩ(Typ.)
50
40
30
20
10
0
V CC =5V
Ta=25 ℃
1
10 100 1000
OUTPUT CURRENT:I OUT [mA]
10000
Fig.23
Advantage 3 : ? Supplied in smaller package due to small-sized power MOS FET incorporated.
? Output capacitor Co required for current mode control:10μF ceramic capacitor
? Inductance L required for the operating frequency of 1 MHz: 4.7μH inductor
Reduces a mounting area required.
V CC
Cin
15mm
R ITH
DC/DC
Convertor
Controller
L
V OUT
Co
10mm
R ITH
C ITH
C IN
C O
L
C ITH
Fig.24 Example application
www.rohm.com
? ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
10/17
TSZ02201-0J3J0AJ00060-1-2
02.MAR.2012. Rev.001
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