Datasheet Linear Technology LTC3401EMS#TRPBF — Ficha de datos

Fabricante	Linear Technology
Serie	LTC3401
Numero de parte	LTC3401EMS#TRPBF

1A, convertidor de refuerzo síncrono micropower de 3MHz

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PDF, 241 Kb, Idioma: en, Archivo subido: sept 21, 2017, Páginas: 16
1A, 3MHz Micropower Synchronous Boost Converter

Extracto del documento

Precios

Embalaje

Package	MS-10
Package Code	MS
Package Index	05-08-1661

Paramétricos

Architecture	Constant Frequency Current Mode
Demo Boards	DC308A
Design Tools	LTspice Model
Export Control	no
Features	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good
Frequency	3000 kHz
Frequency Adjust Range	Up to 3MHz
Frequency Sync Range	Up to 3MHz
Integrated Inductor	no
Ishutdown	0.1 µA
Isupply	0.038 mA
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Polyphase	no
Switch Current	1.6 A
Synchronous	yes
Topology	Boost
Vin Max	5 V
Vin Min	0.5 V
Vin Min Startup	0.85 V
Vout Max	5.5 V
Vout Min	2.6 V
Vswitch Max	6 V

Plan ecológico

RoHS

Obediente

Notas de aplicación

Descargar
High Voltage, Low Noise, DC/DC Converters &mdash AN118
PDF, 2.6 Mb, Archivo publicado: marzo 28, 2008
Photomultipliers (PMT), avalanche photodiodes (APD), ultrasonic transducers, capacitance microphones, radiation detectors and similar devices require high voltage, low current bias. Additionally, the high voltage must be pristinely free of noise; well under a millivolt is a common requirement with a few hundred microvolts sometimes necessary. Normally, switching regulator conп¬Ѓgurations cannot achieve this performance level without employing special techniques. One aid to achieving low noise is that load currents rarely exceed 5mA. This freedom permits output п¬Ѓltering methods that are usually impractical.
Extracto del documento
Application Note 118
March 2008
High Voltage, Low Noise, DC/DC Converters
A Kilovolt with 100 Microvolts of Noise
Jim Williams This publication describes a variety of circuits featuring
outputs from 200V to 1000V with output noise below 100ВµV
measured in a 100MHz bandwidth. Special techniques
enable this performance, most notably power stages
optimized to minimize high frequency harmonic content.
Although sophisticated, all examples presented utilize
standard, commercially available magneticsвЂ”no custom
components are required. This provision is intended to
assist the user in quickly arriving at a produceable design.
Circuits and their descriptions are presented beginning
with the next ink.
BEFORE PROCEEDING ANY FURTHER, THE READER
IS WARNED THAT CAUTION MUST BE USED IN THE
CONSTRUCTION, TESTING AND USE OF THE TEXTвЂ™S
CIRCUITS. HIGH VOLTAGE, LETHAL POTENTIALS ARE
PRESENT IN THESE CIRCUITS. EXTREME CAUTION
MUST BE USED IN WORKING WITH, AND MAKING
CONNECTIONS TO, THESE CIRCUITS. REPEAT: THESE
CIRCUITS CONTAIN DANGEROUS, HIGH VOLTAGE …

Notas de Diseño

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3MHz Micropower Synchronous Boost Converters Deliver 3W from Two Cells in a Tiny MSOP Package &mdash DN246
PDF, 84 Kb, Archivo publicado: dic 2, 2001
Extracto del documento
advertisement 3MHz Micropower Synchronous Boost Converters Deliver
3W from Two Cells in a Tiny MSOP Package
Design Note 246
Mark Jordan
Portable electronic devices operating from one or more
alkaline or nickel-metal-hydride cells require a boosted
supply that is both small and efп¬Ѓcient. Linear TechnologyвЂ™s new LTC В®3401 and LTC3402 are high frequency
micropower synchronous boost converters that operate from an input voltage below 1V and deliver up to
1A of output current from two cells. DC/DC efп¬Ѓciency
can be as high as 97%. The operating frequency,
output voltage and Burst Mode В® operation are all
user programmable, allowing these products to п¬Ѓt in
various applications where size considerations must
be balanced against efп¬Ѓciency. Furthermore, all of this
functionality is packed into a small, thermally enhanced
MSOP-10 package.
The LTC3401 is optimized for applications requiring less than 1.5W of total output power from two
alkaline cells, whereas the LTC3402 is optimized for
applications requiring 3W or less from two cells.
High efп¬Ѓciency is achieved through internal features
such as lossless current sensing, low gate charge,
low RDS(ON) synchronous power switches (0.16О©
NMOS, 0.18О© PMOS) and fast switching transitions …

Artículos

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3MHz Synchronous Boost Regulators Save Critical Board Space in Portable Applications &mdash LT Journal
PDF, 228 Kb, Archivo publicado: nov 1, 2000
Extracto del documento
LINEAR TECHNOLOGY
NOVEMBER 2000 IN THIS ISSUEвЂ¦
COVER ARTICLE
3MHz Synchronous Boost Regulators
Save Critical Board Space
in Portable Applications . 1
Mark Jordan Issue Highlights . 2
LTCВ® in the News . 2
DESIGN FEATURES
SOT-23 10MHz Rail-to-Rail Op Amp
Saves Board Space and Power . 5
Glen Brisebois Low Distortion Rail-to-Rail Amplifiers
Drive ADCs and Cables . 9
William Jett, Danh Tran and Glen Brisebois Phase-Shift Full-Bridge Controller
Enables Efficient, Isolated
Power Conversion for
High Power Applications . 11
John Bazinet Zero-Drift Operational Amplifier
Family in Small-Footprint Packages
Features 3Вµ V Maximum DC Offset and
30nV/В°C Maximum Drift . 15
David Hutchinson Low Dropout Linear Li-Ion Charge
Controllers Prevent Overcharging, …

Linea modelo

Serie: LTC3401 (2)

LTC3401EMS#PBF LTC3401EMS#TRPBF

Clasificación del fabricante

Power Management > Switching Regulator > Step-Up (Boost) Regulators > Micropower Boost | Internal Power Switch Boost

Otros nombres:

LTC3401EMSTRPBF, LTC3401EMS TRPBF