参数资料
型号: LTC3388IMSE-3#TRPBF
厂商: Linear Technology
文件页数: 5/20页
文件大小: 0K
描述: IC REG BUCK SYNC 50MA 10MSOP
标准包装: 2,500
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 2.8V,3V,3.3V,5V
输入电压: 2.7 V ~ 20 V
电流 - 输出: 50mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 10-MSOP 裸露焊盘
LTC3388-1/LTC3388-3
TYPICAL PERFORMANCE CHARACTERISTICS
2.8
UVLO vs Temperature
180
I PEAK vs Temperature
2.0
R P,BUCK /R N,BUCK
vs Temperature
2.6
170
1.8
NMOS
UVLO RISING
160
1.6
2.4
UVLO FALLING
150
1.4
PMOS
2.2
140
130
1.2
1.0
2.0
–50
–25
0
25
50 75
100
125
120
–50
–25
0
25
50 75
100
125
0.8
–55 –35 –15
5
25
45 65 85 105 125
TEMPERATURE (°C)
Operating Waveforms
338813 G04
TEMPERATURE (°C)
338813 G05
1.2V Output vs Temperature
(LTC3388-1)
TEMPERATURE (°C)
1.5V Output vs Temperature
(LTC3388-1)
338813 G06
V OUT
50mV/DIV
AC-COUPLED
V SW
2V/DIV
0V
INDUCTOR
1.24
1.22
1.20
1.18
1.16
1.14
SLEEP THRESHOLD
WAKE-UP THRESHOLD
1.54
1.52
1.50
1.48
1.46
1.44
1.42
SLEEP THRESHOLD
WAKE-UP THRESHOLD
CURRENT
100mA/DIV
0mA
5μs/DIV
V IN = 5.5V, V OUT = 1.8V
I LOAD = 20mA
L = 22μH, C OUT = 47μF
338813 G07
1.12
1.10
1.08
1.06
–50
–25
PGOOD FALLING
0 25 50 75
TEMPERATURE (°C)
100
125
1.40
1.38
1.36
1.34
–50
–25
PGOOD FALLING
0 25 50 75
TEMPERATURE (°C)
100
125
338813 G08
338813 G09
1.85
1.8V Output vs Temperature
(LTC3388-1)
2.55
2.5V Output vs Temperature
(LTC3388-1)
2.90
2.8V Output vs Temperature
(LTC3388-3)
1.80
1.75
SLEEP THRESHOLD
WAKE-UP THRESHOLD
2.50
2.45
SLEEP THRESHOLD
WAKE-UP THRESHOLD
2.85
2.80
2.75
SLEEP THRESHOLD
WAKE-UP THRESHOLD
2.40
2.70
1.70
2.35
2.65
1.65
PGOOD FALLING
2.30
PGOOD FALLING
2.60
2.55
PGOOD FALLING
1.60
–50
–25
0
25
50 75
100
125
2.25
–50
–25
0
25
50 75
100
125
2.50
–50
–25
0
25
50 75
100
125
TEMPERATURE (°C)
338813 G10
TEMPERATURE (°C)
338813 G11
TEMPERATURE (°C)
338813 G12
338813f
5
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