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参数资料
| 型号： | LT3505IMS8E#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1.2A 8MSOP |
| 标准包装： | 50 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.78 V ~ 33.8 V |
| 输入电压： | 3.6 V ~ 36 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 3.01MHz |
| 电流 - 输出： | 1.2A |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 8-MSOP-EP |
LT3505
ELECTRICAL CHARACTERISTICS The " denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C, V IN = 12V, V BOOST = 17V, unless otherwise noted. (Note 2).
PARAMETER
V IN Operating Range
Undervoltage Lockout
Feedback Voltage
CONDITIONS
"
MIN
3.6
3.1
765
TYP
3.35
780
MAX
36
3.6
795
UNITS
V
V
mV
FB Pin Bias Current
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
V FB = Measured V REF (Note 4)
Not Switching, R T = 75.0k
V SHDN = 0V
V IN = 5V to 36V
V FB = 0.7V, R T = 13.7k
V FB = 0.7V, R T = 75.0k
V FB = 0.7V, R T = 357k
"
2.70
675
180
55
2.0
0.01
0.007
3.01
750
200
150
2.7
2
3.30
825
220
nA
mA
μA
%/V
MHz
kHz
kHz
Maximum Duty Cycle
Error Amp Transconductance
Error Amp Voltage Gain
V C Source Current
V C Sink Current
V C Switching Threshold Voltage
V C Clamp Voltage
R T Bias Voltage
R T = 75.0k
V FB = 0.78V
V FB = 0.78V
V FB = 0V, V C = 1.5V
V FB = 1V, V C = 1.5V
I OUT = 0mA
V FB = 0V
V FB = 0.6V
V FB = 0V, R T = 75.0k
"
90
94
200
400
10
14
0.9
1.7
0.5
50
%
μA/V
V/V
μA
μA
V
V
V
mV
Switch Current Limit
Switch V CESAT
Switch Leakage Current
Minimum Boost Voltage Above Switch
BOOST Pin Current
(Note 3)
I SW = 1A
I SW = 1A
I SW = 1A
1.4
1.75
350
0.1
1.6
24
2.2
2
2.2
50
A
mV
μA
V
mA
SHDN Input Voltage High
SHDN Input Voltage Low
2.3
0.3
V
V
SHDN Bias Current
V SHDN = 2.3V (Note 5)
V SHDN = 0V
6
0.01
20
0.1
μA
μA
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 LT3505E is guaranteed to meet performance speci?cations
from 0°C to 85°C. Speci?cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT3505I speci?cations are
guaranteed over the –40°C to 125°C temperature range.
Note 3: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
Note 4: Current ?ows out of pin.
Note 5: Current ?ows into pin.
3505fc
3
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相关代理商/技术参数 |
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|---|---|
| LT3505IMS8E-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2A, Step-Down Switching Regulator in 3mm × 3mm DFN |
| LT3505IMS8E-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1.2A, Step-Down Switching Regulator in 3mm × 3mm DFN |
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| LT3506A | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic Dual Tracking 3A Step-Down Switching |
| LT3506AEDHD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
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