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參數(shù)資料
| 型號： | LT3757MPMSE#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, LEAD FREE, PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 1/36頁 |
| 文件大小： | 436K |
| 代理商： | LT3757MPMSE#PBF |
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LT3757
1
3757fc
n
Wide Input Voltage Range: 2.9V to 40V
n
Positive or Negative Output Voltage Programming
with a Single Feedback Pin
n
Current Mode Control Provides Excellent Transient
Response
n
Programmable Operating Frequency (100kHz to
1MHz) with One External Resistor
n
Synchronizable to an External Clock
n
Low Shutdown Current < 1A
n
Internal 7.2V Low Dropout Voltage Regulator
n
Programmable Input Undervoltage Lockout with
Hysteresis
n
Programmable Soft-Start
n
Small 10-Lead DFN (3mm
× 3mm) and Thermally
Enhanced 10-Pin MSOP Packages
Typical applicaTion
DescripTion
Boost, Flyback, SEPIC and
Inverting Controller
The LT3757 is a wide input range, current mode, DC/DC
controller which is capable of generating either positive or
negative output voltages. It can be configured as either a
boost, flyback, SEPIC or inverting converter. The LT3757
drives a low side external N-channel power MOSFET from
an internal regulated 7.2V supply. The fixed frequency,
current-mode architecture results in stable operation over
a wide range of supply and output voltages.
The operating frequency of LT3757 can be set with an
external resistor over a 100kHz to 1MHz range, and can
be synchronized to an external clock using the SYNC pin.
A low minimum operating supply voltage of 2.9V, and a
low shutdown quiescent current of less than 1A, make
the LT3757 ideally suited for battery-operated systems.
The LT3757 features soft-start and frequency foldback
functions to limit inductor current during start-up and
output short-circuit.
High Efficiency Boost Converter
FeaTures
applicaTions
n
Automotive and Industrial Boost, Flyback, SEPIC and
Inverting Converters
n
Telecom Power Supplies
n
Portable Electronic Equipment
Efficiency
SENSE
LT3757
VIN
8V TO 16V
10F
25V
X5R
VOUT
24V
2A
0.01
41.2k
300kHz
GATE
FBX
GND INTVCC
SHDN/UVLO
SYNC
RT
SS
VC
200k
43.2k
0.1F
22k
6.8nF
10H
3757 TA01a
226k
16.2k
4.7F
10V
X5R
10F
25V
X5R
47F
35V
×2
+
OUTPUT CURRENT (A)
0.001
EFFICIENCY
(%)
30
50
40
60
70
80
90
100
0.01
0.1
1
3757 TA01b
10
VIN = 8V
VIN = 16V
L
, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and No RSENSE and ThinSOT are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT3757MPMSE-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Boost, Flyback, SEPIC and Inverting Controller |
| LT3758 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller |
| LT3758A | 制造商:LINER 制造商全稱:Linear Technology 功能描述:60V Low IQ Inverting DC/DC Controller Wide Operating VIN Range: 3.5V to 60V |
| LT3758AEDD#PBF | 制造商:Linear Technology 功能描述:IC REG CTRLR BST FLYBK INV 10DFN |
| LT3758AEDD#TRPBF | 制造商:Linear Technology 功能描述:IC REG CTRLR BST FLYBK INV 10DFN 制造商:Linear Technology 功能描述:SP-SWREG/Controller, High Input Voltage, Boost, Flyback, SEPIC and Inverting Con |
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