参数资料
型号: LTC1754ES6-3.3#TR
厂商: Linear Technology
文件页数: 4/12页
文件大小: 0K
描述: IC REG SWITCHED CAP 3.3V SOT23-6
标准包装: 2,500
类型: 切换式电容器(充电泵)
输出类型: 固定
输出数: 1
输出电压: 3.3V
输入电压: 2 V ~ 4.4 V
PWM 型: Burst Mode?
频率 - 开关: 600kHz
电流 - 输出: 40mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
包装: 带卷 (TR)
供应商设备封装: SOT-23-6
LTC1754-3.3/LTC1754-5
TYPICAL PERFOR A CE CHARACTERISTICS
No Load Supply Current
LTC1754-5, T A = 25 ° C unless otherwise noted.
Output Voltage vs Output Current
vs Supply Voltage
Supply Current vs V SHDN
5.15
5.10
T A = 25 ° C
C OUT = 10 μ F
C FLY = 1 μ F
20
I OUT = 0 μ A
C FLY = 1 μ F
V SHDN = V IN
T A = 85 ° C
25
20
T A = 25 ° C
I OUT = 0 μ A
V IN = 5.5V
5.05
5.00
V IN = 3V
V IN = 2.7V
15
T A = 25 ° C
15
10
V IN = 3.3V
V IN = 2.7V
4.95
10
T A = –40 ° C
4.90
5
4.85
0
20
40 60 80
100
5
2.5
3.0
3.5
4.0 4.5
5.0
5.5
0
1
2
3
4
5
6
OUTPUT CURRENT (mA)
1574-5 G02
SUPPLY VOLTAGE (V)
1754 G11
V SHDN CONTROL VOLTAGE (V)
1574 G12
V OUT Short-Circuit Current
vs Supply Voltage
Efficiency vs Load Current
C FLY = 1 μ F
220
200
180
160
140
120
100
T A = 25 ° C
C FLY = 1 μ F
100
V IN = 3V
90 T A = 25 ° C
80
70
60
50
40
30
20
10
0
2.5
3.0
3.5
4.0 4.5
5.0
5.5
0.001
0.01
0.1 1 10
100
SUPPLY VOLTAGE (V)
1754 G13
LOAD CURRENT (mA)
1754-5 G05
I OUT
0mA to 50mA
25mA/DIV
Load Transient Response
V OUT
Output Ripple
SHDN
5V/DIV
Start-Up Time
V OUT
AC COUPLED
50mV/DIV
AC COUPLED
20mV/DIV
V OUT
1V/DIV
V IN = 3V
C OUT = 10 μ F
50 μ s/DIV
1754 G16
V IN = 3V
C OUT = 10 μ F
5 μ s/DIV
1754 G17
V IN = 3V
C OUT = 10 μ F
100 μ s/DIV
1754 G18
I OUT = 50mA
4
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