参数资料
型号: DC1367A
厂商: Linear Technology
文件页数: 7/24页
文件大小: 0K
描述: BOARD EVAL LTM4615
软件下载: LTM4615
设计资源: DC1367A Design Files
DC1367A Schematic
标准包装: 1
系列: LTM®, uModule®
主要目的: DC/DC,LDO 步降
输出及类型: 3,非隔离
输出电压: 1.8V,1.2V,1V
电流 - 输出: 4A,2.5A,1.5A
输入电压: 2.5 ~ 5.5 V
稳压器拓扑结构: 降压
频率 - 开关: 1.25MHz
板类型: 完全填充
已供物品:
已用 IC / 零件: LTM4615
相关产品: LTM4615EV#PBF-ND - IC SWIT REG BUCK 4A ADJ 144LGA
LTM4615IV#PBF-ND - IC SWIT REG BUCK 4A ADJ 144LGA
LTM4615
TYPICAL PERFORMANCE CHARACTERISTICS
Ripple Rejection
Output Current Limit
Delay from Enable to Power Good
70
60
50
40
5.0
4.5
4.0
3.5
V LDO_OUT = 0V
T A = 25°C
5.0
4.5
4.0
3.5
3.0
V LDO_OUT = 0.8V
R LDO_OUT = 8
–40°C
25°C
85°C
3.0
2.5
30
20
10
0
100
1000
10000
V BOOST3 = 5V
V LDO_IN = 1.5V
V LDO_OUT =1.2V
I OUT = 800mA
C OUT = 10μF
100000 1000000 1E+07
2.5
2.0
1.5
1.0
CURRENT LIMIT
1.0 1.5
2.0
THERMAL LIMIT
2.5 3.0
3.5
2.0
1.5
1.0
0.5
0
1.0
1.5
2.0
2.5
3.0
3.5
FREQUENCY (Hz)
4615 G19
V LDO_IN (V)
4615 G20
V LDO_IN (V)
4615 G21
1.5A
Output Load Transient Response
IN Supply Transient Response
I LDO_OUT
2mA
V LDO_IN
2V
1.5V
V LDO_OUT
AC
20mV/DIV
V LDO_OUT
AC
10mV/DIV
V LDO_OUT = 1.5V 50μs/DIV
C OUT = 10μF
V LDO_IN = 1.7V
V BOOST3 = 5V
4615 G22
V LDO_OUT = 1.2V 10μs/DIV
I LDO_OUT = 800mA
C OUT = 10μF
V BOOST3 = 5V
T A = 25°C
4615 G23
BOOST3/OUT Start-Up
BOOST3 Ripple and Feedthrough to
V LDO_OUT
EN3
HI
LO
BOOST3
V LDO_OUT
5V
1V
1.5V
BOOST3
AC 20mV/DIV
V LDO_OUT
AC 5mV/DIV
0V
T A = 25°C
R LDO_OUT = 1
V LDO_IN = 1.7V
200μs/DIV
4615 G24
V LDO_OUT = 1.2V 20μs/DIV
V LDO_IN = 1.5V
I LDO_OUT = 1A
C OUT = 10μF
T A = 25°C
4615 G25
7
For more information www.linear.com/LTM4615
4615fb
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