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參數(shù)資料
| 型號： | LT3500IMSE#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 322K |
| 描述： | IC REG DL BUCK/LINEAR 16-MSOP |
| 標(biāo)準(zhǔn)包裝： | 37 |
| 拓?fù)洌?/td> | 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(dòng)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 ~ 125°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： | 管件 |
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LT3500
1
3500fc
FEATURES
APPLICATIONS
DESCRIPTION
Monolithic 2A Step-Down
Regulator Plus Linear
Regulator/Controller
The LT
?/DIV>
3500 is a current mode PWM step-down DC/DC
converter with an internal 2.3A switch. The wide input range
of 3V to 40V makes the LT3500 suitable for regulating
power from a wide variety of sources, including automo-
tive batteries, 24V industrial supplies and unregulated
wall adapters.
Resistor-programmable 250kHz to 2.2MHz frequency
range and synchronization capability enable optimization
between ef ciency and external component size. Cycle-
by-cycle current limit, frequency foldback and thermal
shutdown provide protection against a shorted output.
The soft-start feature controls the ramp rate of the output
voltage, eliminating input current surge during start-up,
and also provides output tracking.
The LT3500 contains an internal NPN transistor with feed-
back control which can be con gured as a linear regulator
or as a linear regulator controller.
The LT3500s low current shutdown mode (<12糀) enables
easy power management in battery-powered systems.
n
Wide Input Range: 3V to 36V Operating,
40V Maximum
n
Short-Circuit Protected Over Full Input Range
n
2A Output Current Capability
n
Adjustable/Synchronizable Fixed Frequency
Operation from 250kHz to 2.2MHz
n
Soft-Start/Tracking Capability
n
Output Adjustable Down to 0.8V
n
Adjustable Linear Regulator/Driver with 13mA
Output Capability
n
Power Good Comparator with Complimentary
Outputs
n
Low Shutdown Current: 12糀
n
Thermally Enhanced 3mm ?3mm DFN or 16-Pin
MSOP Package
n
Automotive Battery Regulation
n
Industrial Control
n
Wall Transformer Regulation
n
Distributed Power Regulation
Dual Step-Down Converters
Output Voltage Ripple
Switching Converter Ef ciency
6.8糎
0.47糉
22糉
22糉
42.2k
8.06k
2.2糉
0.47糉
V
IN
6V TO 36V
40.2k
53.6k
330pF
3500 TA01a
V
OUT1
5V
1A
V
OUT2
3.3V
1A
B240A
BST
V
IN
SW
FB
SHDN
SS
LT3500
R
T/
SYNC
V
C
LDRV
LFB
PG
PG
8.06k
24.9k
1k
LOAD CURRENT (A)
0
90
85
80
75
70
65
60
55
50
1.6
3500 TA01b
0.4 0.8 1.2
2.0
1.4
0.2 0.6 1.0
1.8
V
IN
= 12V
I
OUT2
= 0A
FREQUENCY = 800kHz
500ns/DIV
3500 TA01c
V
OUT1
= 5V AT 1A
AC COUPLED
2mV/DIV
V
OUT2
= 3.3V AT 1A
AC COUPLED
2mV/DIV
TYPICAL APPLICATION
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3500IMSE-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 |
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| LT3501 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic Dual Tracking 3A Step-Down Switching Regulator |
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| LT3501EFE | 制造商:Linear Technology 功能描述:Conv DC-DC Dual Step Down 3.1V to 25V 20-Pin TSSOP EP |
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