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| 型号： | LT3690MPUFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/30页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 26QFN |
| 标准包装： | 2,500 |
| 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： | 3.9 V ~ 36 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 138kHz ~ 1.5MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -55°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 26-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 26-QFN-EP（4x6） |
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LT3690
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 (Notes 3, 7).
PARAMETER
PG Threshold as Percentage of V FB
CONDITIONS
V FB Rising
MIN
88
TYP
90
MAX
92
UNITS
%
PG Hysteresis
12
mV
PG Sink Current
PG Leakage
V PG = 0.3V
V PG = 5V
l
100
500
0.1
1
μA
μA
Error Amplifier Transconductance
Error Amp Voltage Gain
V C Source Current
V C Sink Current
V C Pin to Switch Current Gain
Transconductance
V C Switching Threshold
V C Clamp Voltage
400
60
–50
50
4.6
0.7
2.0
μA/V
dB
μA
μA
A/V
V
V
Programmable Switching Frequency
R T = 10k?
R T = 24.9k?
R T = 180k?
1.32
660
122
1.5
750
138
1.68
840
154
MHz
kHz
kHz
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: Absolute maximum voltage at the EN, UVLO and V IN pins is 36V
for continuous operation. For non-repetitive 1 second transients while
T J < 125°C, the absolute maximum voltage is 60V.
Note 3: The LT3690E 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
LT3690I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3690H is guaranteed over the full –40°C to
150°C operating junction temperature range. The LT3690MP is guaranteed
over the full –55°C to 150°C operating junction temperature range. High
junction temperatures degrade operating lifetime. Operating lifetime is
derated at junction temperatures greater than 125°C.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed the maximum operating junction temperature
when overtemperature protection is active. Continuous operation above
the specified maximum operating junction temperature may impair device
reliability.
Note 5: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
Note 6: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycles. Current
limit reduced when feedback voltage is below the reference voltage.
Note 7: The voltages are referred to GND and currents are assumed
positive, when the current flows into the pin. Negative magnitudes are
shown as maximum.
3690fa
4
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| LT3692AEFE#TRPBF | 功能描述:IC REG BUCK ADJ 3.5A DL 38TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
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