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LM3017 датащи(PDF) 1 Page - Texas Instruments

номер детали LM3017
подробное описание детали  High Efficiency Low-Side Controller with True Shutdown
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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LM3017 датащи(HTML) 1 Page - Texas Instruments

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30180901
LM3017
www.ti.com
SNOSC66C – MARCH 2012 – REVISED MARCH 2013
High Efficiency Low-Side Controller with True Shutdown
Check for Samples: LM3017
1
FEATURES
KEY SPECIFICATION
2
Fully Compliant to Thunderbolt™ Technology
Input Voltage Range of 5V to 18V
Specifications
600 kHz fixed Frequency Operation
True Shutdown for Short Circuit Protection
±1% Reference Voltage Accuracy Over
Input Side Current Limit
Temperature
Single Enable Pin with Three Modes of
Low Shutdown Current (< 1µA), 40nA Typical
Operation: Boost, Pass Through, or Shutdown
DESCRIPTION
Built-in Charge Pump for High-side NFET
The LM3017 is a versatile low-side NFET controller
Disconnect Switch
incorporating true shutdown and input side current
1A Push-pull Driver for Low-side NFET
limiting. It is designed for simple implementation of
Peak Current Mode Control
boost conversions in Thunderbolt™ Technology. The
LM3017 can also be configured for flyback or SEPIC
Simple Slope Compensation
designs. The input voltage range of 5V to 18V
Protection Features: Thermal Shutdown,
accommodates a two or three cell lithium ion battery
Cycle-by-cycle Current Limit, Short Circuit
or a 12V rail. The enable pin accepts a single input to
Protection, Output Overvoltage Protection, and
drive three different modes of operation: boost, pass
Latch-off
through, or shutdown mode. The LM3017 draws very
Internal Soft-start
low current in shutdown mode, typically 40nA from
the input supply.
2.4mm × 2.7mm × 0.8mm 10-pin QFN Package
The LM3017 provides an adjustable output in order to
APPLICATIONS
drive the Power Load Switch or Mux for the host
Thunderbolt™ port. The ability to drive an external
Thunderbolt Technology™ Host Ports
high-side NMOS provides for true isolation of the load
Notebook and Desktop Computers, Tablets,
from the input. Current limiting on the input ensures
and Other Portable Consumer Electronics
that inrush and short-circuit currents are always under
control. The LM3017 incorporates built in thermal
Hard Disc Drives, Solid State Drives
shutdown, cycle-by-cycle current limit, short-circuit
Offline Power Supplies
protection, output overvoltage protection, and soft-
Set-Top Boxes
start. It is available in a 10-pin QFN package.
TYPICAL APPLICATION CIRCUIT
Typical Boost Converter Application
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Thunderbolt is a trademark of Intell Corporation.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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