参数资料
型号: LTC3547EDDB-1#TRPBF
厂商: Linear Technology
文件页数: 16/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ .3A DL 8DFN
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.6 V ~ 5.5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 2.25MHz
电流 - 输出: 300mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN(3x2)
LTC3547
TYPICAL APPLICATIO
Dual 300mA Buck Converter
V IN
2.5V TO 5.5V
C1
4.7 μ F
RUN2 V IN RUN1
V OUT2
1.8V AT 300mA
C F2 , 10pF
L2
4.7 μ H
LTC3547
SW2 SW1
L1
4.7 μ H
C F1 , 10pF
V OUT1
2.5V AT 300mA
C OUT2
4.7 μ F
R4
562k
R3
280k
V FB2
GND
V FB1
R1
280k
R2
887k
C OUT1
4.7 μ F
3547 TA02
C1, C2, C3: TAIYO YUDEN JMK316BJ475ML
L1, L2: MURATA LQH32CN4R7M33
1.8V/1.2V Dual 300mA Buck Converter
V IN
2.5V TO 5.5V
C1
V OUT2
1.2V AT 300mA
4.7 μ F
L2
4.7 μ H
RUN2 V IN RUN1
SW2 SW1
L1
4.7 μ H
V OUT1
1.8V AT 300mA
LTC3547-1
C OUT2
4.7 μ F
V FB2
GND
V FB1
C OUT1
4.7 μ F
3547 TA03
C1, C OUT1 , C OUT2 : TAIYO YUDEN JMK316BJ475ML
L1, L2: MURATA LQH32CN4R7M33
RELATED PARTS
PART NUMBER
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3407/LTC3407-2
LTC3409
LTC3410/LTC3410B
LTC3411
LTC3531/LTC3531-3/
LTC3531-3.3
LTC3532
LTC3548/LTC3548-1/
LTC3548-2
DESCRIPTION
300mA (I OUT ), 1.5MHz, Synchronous Step-Down
DC/DC Converter
600mA (I OUT ), 1.5MHz, Synchronous Step-Down
DC/DC Converter
Dual 600mA/800mA (I OUT ), 1.5MHz/2.25MHz,
Synchronous Step-Down DC/DC Converter
600mA (I OUT ), 1.7MHz/2.6MHz, Synchronous
Step-Down DC/DC Converter
300mA (I OUT ), 2.25MHz, Synchronous Step-Down
DC/DC Converter
1.25A (I OUT ), 4MHz, Synchronous Step-Down
DC/DC Converter
200mA (I OUT ), 1.5MHz, Synchronous Buck-Boost
DC/DC Converter
500mA (I OUT ), 2MHz, Synchronous Buck-Boost
DC/DC Converter
Dual 400mA and 800mA (I OUT ), 2.25MHz,
Synchronous Step-Down DC/DC Converter
COMMENTS
95% Ef?ciency, V IN : 2.5V to 5.5V, V OUT = 0.8V, I Q = 20μA,
I SD <1μA, ThinSOT TM Package
96% Ef?ciency, V IN : 2.5V to 5.5V, V OUT = 0.6V, I Q = 20μA,
I SD <1μA, ThinSOT Package
95% Ef?ciency, V IN : 2.5V to 5.5V, V OUT = 0.6V, I Q = 40μA,
I SD <1μA, MS10E, DFN Packages
96% Ef?ciency, V IN : 1.6V to 5.5V, V OUT = 0.6V, I Q = 65μA,
I SD <1μA, DFN Package
95% Ef?ciency, V IN : 2.5V to 5.5V, V OUT = 0.8V, I Q = 26μA, I SD <1μA,
SC70 Package
95% Ef?ciency, V IN : 2.5V to 5.5V, V OUT = 0.8V, I Q = 60μA,
I SD <1μA, MS10, DFN Packages
95% Ef?ciency, V IN : 1.8V to 5.5V, V OUT : 2V to 5V,
I Q = 16μA, I SD <1μA, ThinSOT, DFN Packages
95% Ef?ciency, V IN : 2.4V to 5.5V, V OUT : 2.4V to 5.25V, I Q = 35μA,
I SD <1μA, MS10, DFN Packages
95% Ef?ciency, V IN : 2.5V to 5.5V, V OUT = 0.6V, I Q = 40μA,
I SD <1μA, MS10E, DFN Packages
ThinSOT is a trademark of Linear Technology Corporation
3547fa
16 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630  McCarthy  Blvd.,  Milpitas,  CA  95035-7417
LT 0906 REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2006
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