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| 型號： | LT3500HMSE#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 4/28頁 |
| 文件大?。?/td> | 322K |
| 描述： | IC REG DL BUCK/LINEAR 16-MSOP |
| 標準包裝： | 2,500 |
| 拓撲： | 降壓（降壓）（1），線性（LDO）（1） |
| 功能： | 任何功能 |
| 輸出數(shù)： | 2 |
| 頻率 - 開關(guān)： | 500kHz ~ 2.4MHz |
| 電壓/電流 - 輸出 1： | 0.8 V ~ 38.9 V，2A |
| 電壓/電流 - 輸出 2： | 可調(diào)式，13mA |
| 帶 LED 驅(qū)動器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 無 |
| 電源電壓： | 3 V ~ 36 V |
| 工作溫度： | -40°C ~ 150°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TFSOP（0.118"，3.00mm 寬）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-MSOP，裸露焊盤 |
| 包裝： | 帶卷 (TR) |
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LT3500
4
3500fc
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
LFB Voltage
V
LDRV
= V
LFB
l
0.784 0.8 0.816 V
LFB Line/Load Regulation
V
VIN
= 3V to 40V, V
LDRV
= V
LFB
l 0.776 0.8 0.824 V
SS to LFB Offset (V
SS
V
LFB
)
V
SS
= 0.8V, V
LDRV
= V
LFB
90 115 140 mV
LFB Bias Current
V
LFB
= 0.8V
115 300 nA
LDRV Dropout (V
VIN
V
LDRV
)
V
LDRV
= 3V, I
LDRV
= 5mA
l
0.8 1.2 1.6
V
LDRV Maximum Current
V
LDRV
= 0V
l 9 13 18 mA
ELECTRICAL CHARACTERISTICS
The l denotes the speci cations which apply over the full operating
temperature range, otherwise speci cations are at T
J
= 25癈. V
VIN
= 15V, V
RT/SYNC
= 2V, unless otherwise speci ed.
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.
Note2: The LT3500EDD/LT3500EMSE is guaranteed to meet performance
speci cations from 0癈 to 125癈 junction temperature. Speci cations over
the 40癈 to 125癈 operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LT3500IDD/LT3500IMSE is guaranteed over the full 40癈 to 125癈
operating junction temperature range. The LT3500HDD/LT3500HMSE is
guaranteed over the full 40癈 to 150癈 operating junction temperature
range. High junction temperatures degrade operating lifetimes. Operating
lifetime is derated at junction temperatures greater than 125癈.
Note 3: Minimum input voltage is de ned as the voltage where internal
bias lines are regulated so that the reference voltage and oscillator remain
constant. Actual minimum input voltage to maintain a regulated output
will depend upon output voltage and load current. See Applications
Information.
Note 4: An internal power-on reset (POR) latch is set on the positive
transition of the SHDN pin through its threshold. The output of the latch
activates a current source on the SS pin which typically sinks 600糀,
discharging the SS capacitor. The latch is reset when the SS pin is driven
below the soft-start POR threshold or the SHDN pin is taken below its
threshold.
Note 5: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the internal power switch.
Note 6: 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 speci ed maximum operating junction temperature may impair device
reliability.
TYPICAL PERFORMANCE CHARACTERISTICS
Feedback Voltage vs Temperature
R
T
/SYNC Voltage vs Temperature
Shutdown Threshold and Minimum
Input Voltage vs Temperature
TEMPERATURE (癈)
50
0.800
FB
LFB
0.810
150
3500 G01
0.790
0.780
0
50
100
25
25
75
125
0.820
0.795
0.805
0.785
0.815
TEMPERATURE (癈)
50
0.90
0.92
0.96
0.98
1.00
1.10
1.04
0
50 75
3500 G02
0.94
1.06
1.08
1.02
25
25
100 125 150
R
RT/SYNC
= 90.9k
R
RT/SYNC
= 15k
TEMPERATURE (癈)
50
2.0
2.5
3.0
25
75
3500 G03
1.5
1.0
25 0
50
100 150
125
0.5
0
MINIMUM INPUT VOLTAGE
SHUTDOWN THRESHOLD
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3500IDD#PBF | 功能描述:IC REG DL BUCK/LINEAR 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標準包裝:2,500 系列:- 拓撲:降壓（降壓）同步（3），線性（LDO）（2） 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LT3500IDD#TRPBF | 功能描述:IC REG DL BUCK/LINEAR 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標準包裝:2,500 系列:- 拓撲:降壓（降壓）同步（3），線性（LDO）（2） 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LT3500IDD-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller |
| LT3500IDD-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller |
| LT3500IMSE#PBF | 功能描述:IC REG DL BUCK/LINEAR 16-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標準包裝:2,500 系列:- 拓撲:降壓（降壓）同步（3），線性（LDO）（2） 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
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