参数资料
型号: DC1453A
厂商: Linear Technology
文件页数: 19/24页
文件大小: 0K
描述: BOARD EVAL LTM4619
软件下载: LTM4619 Spice Model
设计资源: DC1453A Design Files
DC1453A Schematic
标准包装: 1
系列: LTM®, uModule®
主要目的: DC/DC,步降
输出及类型: 2,非隔离
输出电压: 1.8V,3.3V
电流 - 输出: 4A
输入电压: 4.5 ~ 28 V
稳压器拓扑结构: 降压
频率 - 开关: 500kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: LTM4619
相关产品: LTM4619IV#PBF-ND - IC SWIT REG BUCK 4A ADJ 144LGA
LTM4619EV#PBF-ND - IC SWIT REG BUCK 4A ADJ 144LGA
LTM4619
TYPICAL APPLICATIONS
EXTERNAL 5V SUPPLY FOR
INPUT VOLTAGE BELOW 5.5V
V OUT1 V OUT2
R2
1.21k
V IN
4.5V TO
26.5V
V OUT1
1.2V/4A
C IN
10μF
× 2
C OUT1
100μF
× 2
121k
C1
22pF
0.1μF
MODE/PLLIN INTV CC EXTV CC
V IN FREQ/PLLFLTR
V FB1 V FB2
COMP1 COMP2
LTM4619
TK/SS1 TK/SS2
RUN1 RUN2
R1
3.83k
68.1k
C2
22pF
C OUT2
100μF
0.1μF × 2
V OUT2
1.5V/4A
INTV CC
100k
PGOOD
PGOOD
SGND
PGND
4619 F19
Figure 19. Typical 4.5V to 26.5V Input, 1.2V and 1.5V
Outputs at 4A Design with Adjusted Frequency at 500kHz
V IN
6V TO
26.5V
C IN
10μF
MODE/PLLIN EXTV CC INTV CC
V IN FREQ/PLLFLTR
COMP1 V FB1
COMP2 V FB2
TK/SS1 LTM4619 V OUT1
C1
51pF
R1
5.76k
C5
C3
0.1μF
TK/SS2
PGOOD
V OUT2
RUN2
C4
100μF
+
V OUT2
5V/8A
330μF
RUN1
SGND
PGND
4619 F20
Figure 20. Output Paralleled LTM4619 Module for 5V Output at 8A Design
4619fb
For more information www.linear.com/LTM4619
19
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