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| 型号： | LT3695IMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/30页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1A 16MSOP |
| 标准包装： | 37 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 20 V |
| 输入电压： | 3.6 V ~ 36 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 250kHz ~ 2.2MHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 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）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-MSOP，裸露焊盘 |
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LT3695 Series
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 10V, V RUN/SS = 10V, unless otherwise noted. (Note 4)
PARAMETER
Switch V CESAT
CONDITIONS
I SW = 1A
MIN
TYP
350
MAX
UNITS
mV
DA Pin Current to Stop OSC
Switch Leakage Current
Boost Schottky Diode Voltage Drop
V SW = 0V, V IN = 36V
I BSD = 50mA
1.25
1.6
0.01
720
1.95
1
900
A
μA
mV
Boost Schottky Diode Reverse Leakage V SW = 10V, V BD = 0V
0.1
1
μA
Minimum Boost Voltage (Note 8)
BOOST Pin Current
I SW = 0.5A
l
1.7
10.5
2.3
17.5
V
mA
RUN/SS Pin Current
V RUN/SS = 2.5V
V RUN/SS = 10V
l
4.5
12
7.5
20
μA
μA
RUN/SS Input Voltage High
RUN/SS Input Voltage Low
2.5
0.2
V
V
PG Leakage Current
V PG = 5V
0.1
1
μA
PG Sink Current
V PG = 0.4V
l
100
1000
μA
PG Threshold as % of V FB (LT3695) or
V OUT (LT3695-3.3, LT3695-5)
Measured at FB (LT3695) or OUT1,2 (LT3695-3.3, LT3695-5)
Pins (Pin Voltage Rising)
88
90
92
%
PG Threshold Hysteresis
LT3695
Measured at FB Pin
12
mV
LT3695-3.3 Measured at OUT1,2, Pins
50
mV
LT3695-5
Measured at OUT1,2, Pins
75
mV
SYNC Threshold Voltage
SYNC Input Frequency
300
0.3
550
800
2.2
mV
MHz
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 the device
reliability and lifetime.
Note 2: Positive currents ?ow into pins, negative currents ?ow out of pins.
Minimum and maximum values refer to absolute values.
Note 3: Absolute maximum voltage at V IN and RUN/SS pins is 60V for
nonrepetitive 1 second transients, and 36V for continuous operation.
Note 4: The LT3695E regulators are guaranteed to meet performance
speci?cations from 0°C to 125°C junction temperature. Speci?cations
over the –40°C to 125°C operating junction temperature range are
assured by design, characterization and correlation with statistical process
Note 5: These ICs include overtemperature protection that is intended
to protect the devices during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operation above
the speci?ed maximum operating junction temperature may impair device
reliability.
Note 6: This is the voltage necessary to keep the internal bias circuitry in
regulation.
Note 7: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycles.
Note 8: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
controls. The LT3695I regulators are guaranteed over the full –40°C to
125°C operating junction temperature range. The LT3695H regulators are
guaranteed over the full –40°C to 150°C operating junction temperature
range.
3695fa
4
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