参数资料
型号: LTC3606BIDD#TRPBF
厂商: Linear Technology
文件页数: 5/20页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.8A 8DFN
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 2.25MHz
电流 - 输出: 800mA
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: 8-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN-EP(3x3)
LTC3606B
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, V IN = 5V, unless otherwise noted.
Ef?ciency vs Load Current
Load Regulation
Line Regulation
100
90
80
70
V OUT = 1.2V
3.0
2.5
2.0
0.6
0.4
0.2
V OUT = 1.8V
I LOAD = 100mA
60
1.5
50
40
30
1.0
0.5
0
–0.2
20
10
0
0.0001
0.001
0.01
V IN = 2.7V
V IN = 3.6V
V IN = 4.2V
V IN = 5V
0.1
1
0
–0.5
–1.0
0
V OUT = 1.8V
V OUT = 2.5V
V OUT = 3.3V
100 200 300 400 500 600 700 800
–0.4
–0.6
2.5
3.0
3.5
4.0
4.5
5.0
5.5
OUTPUT CURRENT (A)
Start-Up from Shutdown
3606B G13
LOAD CURRENT (mA)
Start-Up from Shutdown
3606B G15
V IN (V)
V RLIM vs Input Current
3606B G16
RUN
2V/DIV
RUN
2V/DIV
1.2
1.0
I LIM = 475mA
R LIM = 116k
V OUT
2V/DIV
0.8
V OUT
1V/DIV
I L
250mA/DIV
R LIM
1V/DIV
I IN
500mA/DIV
0.6
0.4
200μs/DIV
3606B G17
2ms/DIV
3606B G18
0.2
V IN = 5V, V OUT = 3.3V
R LOAD = 7Ω
C LOAD = 4.7μF
V IN = 5V, V OUT = 3.4V
R L = NO LOAD, C L = 4.4mF
C LIM = 2200pF, I LIM = 500mA
0
0
100
200
300 400
I IN (mA)
500
600
3606B G18b
Average Input Current Limit
vs Temperature
8
V IN = 5V
6 I LIM = 475mA
4
2
0
–2
–4
V OUT
200mV/DIV
AC-COUPLED
I L
1A/DIV
I LOAD
1A/DIV
Load Step
V OUT
200mV/DIV
AC-COUPLED
I L
1A/DIV
I LOAD
1A/DIV
Load Step
–6
20μs/DIV
3606B G20
20μs/DIV
3606B G21
–8
–50
–25
0 25 50 75
TEMPERATURE (°C)
100
125
V IN = 5V, V OUT = 3.3V
I LOAD = 0A TO 800mA
C OUT = 100μF, C F = 20pF
V IN = 5V, V OUT = 1.8V
I LOAD = 80mA TO 800mA
C OUT = 100μF, C F = 20pF
3606B G19
3606bfb
5
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