Datasheet Linear Technology LTC3703EG-5#PBF — 数据表

制造商	Linear Technology
系列	LTC3703-5
零件号	LTC3703EG-5#PBF

60V同步开关稳压器控制器

数据表

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PDF, 386 Kb, 语言: en, 文件上传: Sep 22, 2017, 页数: 32
60V Synchronous Switching Regulator Controller

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价格

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Package	SSOP-28
Package Code	G
Package Index	05-08-1640 (G28)

参数化

Architecture	Constant Frequency Current Mode
Design Tools	LTspice File
Export Control	no
Features	No Rsense, Resistor Set Frequency, External Synchronization
Frequency	600 kHz
Frequency Adjust Range	100kHz to 600kHz
Frequency Sync Range	Up to 600kHz
Integrated Inductor	no
Ishutdown	25 µA
Isupply	1.7 mA
Max Phases	1
Monolithic	no
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Output Current	20 A
Polyphase	no
Sense Resistor	None
Switch Current	20 A
Synchronous	yes
Topology	Buck, Boost
Vin Max	60 V
Vin Min	9.3 V
Vout Max	55.8 V
Vout Maximum	100V
Vout Min	0.8 V
Vref Accuracy Over Temp	1 %
Vswitch Max	100 V

生态计划

RoHS

Compliant

设计须知

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Buck or Boost: Rugged, Fast 60V Synchronous Controller Does Both &mdash DN370
PDF, 96 Kb, 档案已发布: Jun 28, 2005
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advertisement Buck or Boost: Rugged, Fast 60V Synchronous Controller
Does Both вЂ“ Design Note 370
Greg Dittmer
Introduction
Automotive, telecom and industrial systems are harsh,
unforgiving environments that demand robust electronic systems. For example, an automotive battery
system may be a nominal 12V, 24V or 42V, but load
dump conditions can generate transients up to 60V.
The LTC В®3703-5 is a synchronous switching regulator
controller that can directly step down input voltages up
to 60V and withstand transients up to 80V, making it
ideal for harsh environments. The ability to step down
the high input voltage directly allows a simple single
inductor topology, resulting in a compact high performance power supplyвЂ”in contrast to the low side drive
topologies that require bulky, expensive transformers. multiple MOSFETs are used for high current applications. Other features include: Low minimum on-time (200ns) for low duty cycle
applications Precise 0.8V В±1% reference Programmable current limit utilizing the voltage drop
across the synchronous MOSFET to eliminate the
need for a current sense resistor Programmable operating frequency (100kHz to
600kHz) Low shutdown current (25ОјA), external clock synchronization input and selectable pulse skip mode
operation Feature Rich Controller
The LTC3703-5 drives external logic-level N-channel
MOSFETs using a constant frequency, voltage mode
architecture. A high bandwidth error ampliп¬Ѓer and …

文章

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Synchronous Switching Regulator Controller Allows Inputs up to 100V &mdash LT Journal
PDF, 433 Kb, 档案已发布: Mar 25, 2005
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DESIGN FEATURES Synchronous Switching Regulator
Controller Allows Inputs up to 100V
by Greg Dittmer Introduction
Industrial, automotive, and telecom
systems create harsh, unforgiving
environments that demand robust
electronic systems. In telecom systems
the input rails can vary from 36V to
72V, with transients as high as 100V.
In automotive systems the DC battery voltage may be 12V, 24V, or 42V
with load dump conditions causing
transients up to 60V.
Until now, no synchronous buck
(or boost) control IC has been capable
of operating at 100V, so solutions
have been limited to low-side drive
topologies that utilize expensive and
bulky transformers. The LTC3703 is a
100V synchronous switching regulator
controller that can directly step-down
high input voltages using a single
inductor, thus providing a compact
high performance power supply for …

模型线

系列: LTC3703-5 (8)

LTC3703EG-5#PBF LTC3703EG-5#TRPBF LTC3703EGN-5#PBF LTC3703EGN-5#TRPBF LTC3703IG-5#PBF LTC3703IG-5#TRPBF LTC3703IGN-5#PBF LTC3703IGN-5#TRPBF

制造商分类

Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | External Power Switch Buck Controllers
Power Management > Switching Regulator > Step-Up (Boost) Regulators > External Power Switch Boost

其他名称:

LTC3703EG-5PBF, LTC3703EG-5 PBF, LTC3703EG5#PBF, LTC3703EG 5#PBF