参数资料
型号: LTC3401EMS
厂商: Linear Technology
文件页数: 3/16页
文件大小: 0K
描述: IC REG BOOST SYNC ADJ 1A 10MSOP
标准包装: 50
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.6 V ~ 5.5 V
输入电压: 0.5 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 3MHz
电流 - 输出: 1A
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: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
供应商设备封装: 10-MSOP
LTC3401
ELECTRICAL CHARACTERISTICS
The ● denotes specifications that apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
V IN = 1.2V, V OUT = 3.3V unless otherwise noted.
PARAMETER
PGOOD Low Voltage
PGOOD Leakage
SHDN Input High
CONDITIONS
I PGOOD = 1mA
V OUT = 1V, I PGOOD = 20 μ A
V PGOOD = 5.5V
V SHDN = V IN = V OUT
MIN
1
TYP
0.1
0.1
0.01
MAX
0.2
0.4
1
UNITS
V
V
μ A
V
SHDN Input Low
0.4
V
SHDN Input Current
Thermal Shutdown
V SHDN = 5.5V
0.01
170
1
μ A
° C
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3401 is guaranteed to meet performance specifications
from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Current is measured into V OUT since the supply current is
bootstrapped to the V OUT pin and in the application will reflect to the input
supply by (V OUT /V IN ) ? I/ Efficiency. The outputs are not switching.
Note 4: Once the output is started, the IC is not dependant upon the V IN
supply.
TYPICAL PERFOR A CE CHARACTERISTICS
SW Pin and Inductor Current (I C )
in Discontinuous Mode. Ringing
Control Circuitry Eliminates High
SW
1V/DIV
Switching Waveform on SW Pin
I L
50mA/DIV
0A
SW
1V/DIV
0V
Frequency Ringing
V OUT
100mV/DIV
50mA
I OUT
5mA
Transient Response 5mA to 50mA
50ns/DIV
3401 G01
200ns/DIV
3401 G02
C OUT = 22 μ F
L = 3.3 μ H
200 μ s/DIV
3401 G03
f OSC = 1MHz
3401fb
3
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