参数资料
型号: LT3574IMS#TRPBF
厂商: Linear Technology
文件页数: 3/24页
文件大小: 0K
描述: IC REG FLYBK ISO ADJ .65A 16MSOP
标准包装: 2,500
类型: 回扫,隔离
输出类型: 可调式
输出数: 1
输出电压: 可调至 60V
输入电压: 3 V ~ 40 V
PWM 型: 电流模式,混合
频率 - 开关: 40kHz ~ 1MHz
电流 - 输出: 650mA
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: 16-TFSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 16-MSOP
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LT3574
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V IN = 12V, unless otherwise noted.
PARAMETER
Error Amplifier Transconductance
Minimum Switching Frequency
TC Current into R REF
BIAS Pin Voltage
CONDITIONS
D I = 10μA, V IN = 3V
V C = 0.35V
R TC = 20.1k
I BIAS = 30mA
MIN
2.9
TYP
150
40
27.5
3
MAX
3.1
UNITS
μmhos
kHz
μA
V
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 LT3574E is guaranteed to meet performance specifications
from 0°C to 125°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design
characterization and correlation with statistical process controls. The
LT3574I is guaranteed over the full –40°C to 125°C operating junction
temperature range.
Note 3: Current flows out of the R REF pin.
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, unless otherwise noted.
Output Voltage
Quiescent Current
Bias Pin Voltage
5.20
5.15
5.10
5.05
5.00
4.95
6
5
4
3
2
V IN = 40V
BIAS = 20V
V IN = 5V
BIAS = 5V
3.2
3.0
2.8
2.6
2.4
V IN = 40V
V IN = 12V
4.90
4.85
1
2.2
4.80
–50
–25
0
25
50
75
100
125
0
–50 –25
0
25 50 75
100
125
2.0
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
3574 G01
TEMPERATURE (°C)
3574 G02
TEMPERATURE (°C)
3574 G03
3574f
 
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