参数资料
型号: LT3579EFE#PBF
厂商: Linear Technology
文件页数: 4/40页
文件大小: 0K
描述: IC REG MULTI CONFIG SYNC 20TSSOP
标准包装: 74
类型: 升压(升压),反相,回扫,Sepic
输出数: 1
输入电压: 2.5 V ~ 16 V
PWM 型: 电流模式
频率 - 开关: 200kHz ~ 2.5MHz
电流 - 输出: 6A
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: 20-TSSOP(0.173",4.40mm 宽)裸露焊盘
包装: 管件
供应商设备封装: 20-TSSOP-EP
LT3579/LT3579-1
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 = 5V, V SHDN = V IN , V FAULT = V IN unless otherwise noted. (Note 2).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Soft-Start Charge Current
Soft-Start Discharge Current
Soft-Start High Detection Voltage
Soft-Start Low Detection Voltage
SHDN Minimum Input Voltage High
SHDN Input Voltage Low
SHDN Pin Bias Current
CLKOUT Output Voltage High
CLKOUT Output Voltage Low
V SS = 30mV, Current Flows Out of SS pin
Part in FAULT
V SS = 2.1V,
Current Flows into SS Pin
Part in FAULT
Part Exiting FAULT
Active Mode, SHDN Rising
Active Mode, SHDN Falling
Shutdown Mode
V SHDN = 3V
V SHDN = 1.3V
V SHDN = 0V
C CLKOUT = 50pF
C CLKOUT = 50pF
l
l
l
l
l
l
l
5.7
5.7
1.65
30
1.27
1.24
9.5
1.9
8.7
8.7
1.8
50
1.33
1.3
40
11.4
0
2.1
100
11.3
11.3
1.95
85
1.41
1.38
.3
60
13.4
0.1
2.3
200
μA
μA
V
mV
V
V
V
μA
μA
μA
V
mV
CLKOUT Duty Cycle
CLKOUT Rise Time
CLKOUT Fall Time
LT3579, T J = 25°C
LT3579-1, All T J
C CLKOUT = 50pF
C CLKOUT = 50pF
42
50
12
8
%
%
ns
ns
GATE Pull Down Current
GATE Leakage Current
FAULT Output Voltage Low
FAULT Leakage Current
FAULT Input Voltage Low Threshold
FAULT Input Voltage High Threshold
V GATE = 3V
V GATE = 80V
V GATE = 50V, GATE Off
100μA into FAULT Pin
V FAULT = 40V, FAULT Off
l
l
l
l
l
800
800
700
950
933
933
0.01
150
0.01
750
1000
1100
1100
1
300
1
800
1050
μA
μA
μA
mV
μA
mV
mV
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 LT3579E 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
LT3579I is guaranteed over the full –40°C to 125°C operating junction
temperature range.
Note 3: Current limit guaranteed by design and/or correlation to static test.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation over the specified maximum operating junction
temperature may impair device reliability.
35791f
4
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