参数资料
型号: LTC3100EUD#PBF
厂商: Linear Technology
文件页数: 8/26页
文件大小: 403K
描述: IC REG BUCK/BOOST/LINEAR 16-QFN
产品培训模块: More Information on LDOs
标准包装: 121
拓扑: 降压(降压)(1),升压(升压)(1),线性(LDO)(1)
功能: 任何功能
输出数: 3
频率 - 开关: 1.5MHz
电压/电流 - 输出 1: 0.6 V ~ 5.5 V,250mA
电压/电流 - 输出 2: 1.5 V ~ 5.25 V,700mA
电压/电流 - 输出 3: 0.6 V ~ 5.25 V,100mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 0.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-QFN-EP(3x3)
包装: 管件
LTC3100
8
3100fb
For more information www.linear.com/LTC3100
Step-Down DC/DC Converter
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current and V
IN
 
for V
O
 = 1.2V
Efficiency vs Load Current and V
IN
 
for V
O
 = 1.8V
No-Load Input Current
vs V
INBK
 (Mode = Open)
Burst Mode Operation Threshold
Current vs V
IN
 
V
OUT
 and I
IN
 During Soft-Start
T
A
 = 25癈, unless otherwise specified.
Output Voltage Ripple in Fixed
Frequency and Burst Mode Operation
Load Step Response,
Burst Mode Operation Enabled
10mA to 100mA
Load Step Response,
Fixed Frequency Mode
10mA to 100mA
LOAD CURRENT (mA)
30
50
80
0.01
10    100   1000
0
10
0.1    1
100
70
90
40
60
20
100
0.01
1000
1
10
0.1
3100 G19
V
IN
 = 1.8V
V
IN
 = 2.4V
V
IN
 = 3.3V
PL, V
IN
 = 1.8V
PL, V
IN
 = 2.4V
PL, V
IN
 = 3.3V
LOAD CURRENT (mA)
30
50
80
0.01
10    100   1000
0
10
0.1    1
100
70
90
40
60
20
100
0.01
1000
1
10
0.1
3100 G20
V
IN
 = 2.4V
V
IN
 = 3.3V
V
IN
 = 5V
PL, V
IN
 = 2.4V
PL, V
IN
 = 3.3V
PL, V
IN
 = 5V
V
INBK
 (V)
1.5
2.5
3.5
2
3
4   4.5   5
5
0
15
20
10
3100 G21
V
INBK
 (V)
60
70
50
40
2.5
3.5
2
3
4   4.5   5
10
0
30
80
20
3100 G22
V
OUT
 = 2.5V
V
OUT
= 1.8V
V
OUT
 = 1.2V
V
OUT
 = 1.5V
3100 G24
5祍/DIV
50mV/DIV
50mV/DIV
C
OUT
= 10礔
3100 G25
200祍/DIV
100mA/DIV
50mV/DIV
C
OUT
= 10礔
3100 G26
200祍/DIV
50mA/DIV
50mV/DIV
C
OUT
= 10礔
3100 G23
2ms/DIV
INPUT
CURRENT
50mA/DIV
V
OUT
0.5V/DIV
STARTUP, 200mA LOAD
V
IN
= 2.4V
V
OUT
= 1.2V
C
OUT
= 10礔
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