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Digi-Key’s library of more than 1700 exclusive PTM Online… On Demand® product training modules is a collection of training tools created with you – the busy design engineer – in mind. They are provided with the cooperation of participating supplier partners. From this one source, you can learn about the latest products and technologies, download datasheets, check inventory, contact our technical staff, and place an order for same-day shipment.

These modules are available in audio and non-audio formats and listed by supplier in easy-to-find alphabetical order. Simply locate the module that interests you and click on your format of choice. We hope you find these tools useful, and with new modules added continuously, we invite you to stop back often to see what’s new.

Product Training Modules Online...On Demand® is a registered trademark of Digi-Key Corporation.

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Module Name	Preview	Audio	Non-Audio	Duration	Parts List
μModule® Family of EN55022 Class B Certified Regulators		2.3MB	626KB	5 min	Parts List
μModule: LTM2881 - Complete Isolated RS485/RS422 μModule Transceiver + Power		6.2MB	636KB	5 min	Parts List
μModule: LTM4627 Micro Module Regulator		2.1MB	889KB	5 min	Parts List
μModule: LTM9001, 16-bit high-speed IF/Baseband uModule Receiver Overview		3.5MB	722KB	5 min	Parts List
µModule: LTM2882 - Dual Isolated RS232 µodule Transceiver + Power		4.9MB	824KB	5 min	Parts List
µModule: LTM4611: Ultralow VIN, 15A DC/DC µModule® Regulator		2.2MB	752KB	5 min	Parts List
µModule: LTM4615 - Triple Output, Low Voltage DC/DC µModule Regulator		1.9MB	591KB	5 min	Parts List
µModule: LTM4618 Step-Down µModule® Regulator		2.2MB	1.1MB	5 min	Parts List
µModule: LTM4620 Step-Down µModule Regulator		1.8MB	583KB	5 min	Parts List
µModule: LTM8025 - 36VIN, 3A Step Down Regulator		1.5MB	517KB	5 min	Parts List
µModule: LTM8026 & LTM8052 Step-Down µModule Regulators		3.0MB	690KB	10 min	Parts List
µModule: LTM8027 - 60V, 4A DC/DC µModule Regulator		2.2MB	765KB	5 min	Parts List
µModule: LTM802x High Voltage μModule Switching Regulators		2.1MB	470KB	5 min	Parts List
µModule: LTM8047 and LTM8048 1.5W, 725 VDC Isolated Micromodule Converter		1.7MB	424KB	5 min	Parts List
µModule: LTM806x Step-Down Micro-Module Battery Charger		2.5MB	851KB	5 min	Parts List
µModule: Power Module vs Discrete DC to DC		2.4MB	922KB	5 min	Parts List
µModule: Wide Temperature DC/DC Converter µModules		2.4MB	947KB	5 min	Parts List
µModules: LTM2883 SPI, Digital, or I²C µModule Isolater		5.5MB	410KB	5 min	Parts List
Data: LTC2262 - Ultra Low Power High Speed ADCs		4.7MB	1.0MB	10 min	Parts List
Data: LTC2274 - High Speed Serial ADC		3.8MB	517KB	10 min	Parts List
Data: LTC2369- 18-/16-bit Pseudo-Differential SAR ADC Family Overview		4.4MB	807KB	10 min	Parts List
Data: LTC2379- 18-/16-bit Fully-Differential SAR ADC Family Overview		3.0MB	350KB	5 min	Parts List
Data: LTC2389-18/16-bit Pin Configurable SAR ADCs		2.8MB	620KB	5 min	Parts List
Data: LTC2460 and LTC2450 Delta Sigma ADC Families		2.8MB	657KB	5 min	Parts List
Data: LTC263x 12, 10, and 8-Bit VOUT DAC Family		3.1MB	967KB	5 min	Parts List
Data: LTC265x 16-/12-Bit Quad and Octal Voltage Output DACs		1.7MB	243KB	5 min	Parts List
Data: LTC275x 18-Bit DAC		5.6MB	1.3MB	5 min	Parts List
Data: Open Loop DAC		6.3MB	855KB	20 min	Parts List
Energy Harvesting: LT3652 Multi-Chemistry Battery Charger for Solar Power		3.5MB	1.1MB	10 min	Parts List
Energy Harvesting: LTC4070 - Li-Ion/Polymer Shunt Battery Charger System		2.7MB	592KB	5 min	Parts List
Energy Harvesting: The LTC3108 - The Missing Link for Energy Harvesting		3.1MB	780KB	10 min	Parts List
Interface: LTC2870 and LTC2871 Multi-Protocol Transceivers		4.0MB	1.0MB	5 min	Parts List
Interface: LTC4310 - Hot-Swappable I²C Isolators		3.9MB	643KB	5 min	Parts List
Interface: LTC6362 Low Power Differential Amplifier Overview		3.8MB	671KB	10 min	Parts List
Lighting: LT3518 - LED Driver with 2.3A Switch Current		2.8MB	854KB	5 min	Parts List
Lighting: LT3592 - 500mA Wide Input Voltage Range Step-Down LED Driver with 10:1 Dimming		2.0MB	794KB	5 min	Parts List
Lighting: LT3743 Synchronous Step-Down LED Driver		2.2MB	331KB	5 min	Parts List
Lighting: LT3756/LT3756-1/LT3756-2 - 100VIN, 100VOUT LED Controller		4.4MB	1.5MB	5 min	Parts List
Lighting: LT3799 Offline Isolated Flyback LED Controller		2.5MB	952KB	5 min	Parts List
LT3959 Wide Input Voltage Range Boost, SEPIC and Inverting Converter		2.2MB	553KB	10 min	Parts List
LTC3866 Current Mode Synchronous Step-Down Controller		1.9MB	380KB	5 min	Parts List
Power: Buck-Boost µModule Regulators		2.1MB	348KB	10 min	Parts List
Power: Current Sharing Basics with LTC4370		3.3MB	356KB	10 min	Parts List
Power: High Voltage µModule DC/DC Regulators		2.8MB	787KB	5 min	Parts List
Power: Low Dropout Linear Regulator Frequently Asked Questions		--	142KB	5 min	Parts List
Power: LT1965 - 1.1A, Low Noise, Low Dropout Linear Regulator		2.3MB	534KB	5 min	Parts List
Power: LT2940 - Power and Current Monitor		3.0MB	641KB	5 min	Parts List
Power: LT3008- 3µA, IQ, 20mA, 45V Adjustable Low Dropout Linear Regulator		2.2MB	434KB	5 min	Parts List
Power: LT3009 - 3µA IQ, 20mA Low Dropout Linear Regulator		1.9MB	287KB	5 min	Parts List
Power: LT3011 - 50mA, 3V to 80V Low Dropout Micropower Linear Regulator with PWRGD		2.2MB	359KB	5 min	Parts List
Power: LT3015 1.5 A Low Noise Negative LDO		2.5MB	468KB	5 min	Parts List
Power: LT3022 - 1A, 0.9V to 10V, Very Low Dropout Linear Regulator		3.2MB	987KB	5 min	Parts List
Power: LT3029 - 500mA, Dual Output, 1.2 ~ 19.5V, Linear Regulator		2.1MB	580KB	5 min	Parts List
Power: LT3032 - 150mA Dual Positive/Negative Low Noise LDO		1.3MB	452KB	5 min	Parts List
Power: LT3050 - 100mA, Low Noise Linear Regulator With Precision Current Limit And Diagnostic Functions		2.5MB	905KB	5 min	Parts List
Power: LT3070 - 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator		3.0MB	932KB	5 min	Parts List
Power: LT3071 - LDO Regulator for High Performance Digital ICs		3.2MB	886KB	10 min	Parts List
Power: LT3080 - Adjustable 1.1A Single Resistor Low Dropout Regulator		1.9MB	391KB	5 min	Parts List
Power: LT3082 - 200mA Single Resistor Low Dropout Linear Regulator		1.1MB	398KB	5 min	Parts List
Power: LT3085 - Adjustable 500mA Single Resistor Low Dropout Regulator		2.1MB	249KB	5 min	Parts List
Power: LT3092 - 200mA Two-Terminal Programmable Current Source		2.2MB	447KB	5 min	Parts List
Power: LT3571 - 75V DC/DC Converter for APD Bias		3.3MB	612KB	10 min	Parts List
Power: LT3573 - Isolated Flyback Converter Without an Opto-Coupler		1.6MB	195KB	5 min	Parts List
Power: LT3748 100V Flyback Controller		2.3MB	796KB	5 min	Parts List
Power: LT3757 and LT3758 - Boost, Flyback, SEPIC and Inverting Controllers		2.3MB	458KB	5 min	Parts List
Power: LT3759 Wide Input Range DC to DC Controller		1.6MB	716MB	5 min	Parts List
Power: LT3798 Isolated No Opto-Coupler Flyback Controller with Active PFC		2.5MB	817KB	5 min	Parts List
Power: LT3956 DC to DC Converter		2.2MB	275KB	5 min	Parts List
Power: LT4180 - Virtual Remote Sense Controller		2.7MB	603KB	5 min	Parts List
Power: LT4356 Surge Stopper		3.3MB	313KB	10 min	Parts List
Power: LT8300 Micropower Isolated Flyback Converter by Digi-Key and Linear Tech		1.8MB	317KB	5 min	Parts List
Power: LTC2950 - Push Button On/Off Controller		3.3MB	510KB	10 min	Parts List
Power: LTC2974 Quad Digital Power Supply Manager		6.2MB	1.1MB	10 min	Parts List
Power: LTC2978 -Octal PMBus Power Supply Monitor and Controller Overview		7.4MB	1.3MB	15 min	Parts List
Power: LTC2990 I²C Temperature, Voltage and Current Monitor		1.9MB	186KB	5 min	Parts List
Power: LTC3225 and LTC3225-1 150mA SuperCapacitor Chargers		2.6MB	600KB	5 min	Parts List
Power: LTC3226 Supercapacitor Charger	Play	2.9MB	728KB	5 min	Parts List
Power: LTC3589 Power Management IC		2.2MB	747KB	5 min	Parts List
Power: LTC3625 and LTC3625-1 Supercapacitor Chargers		4.6MB	1.0MB	5 Min	Parts List
Power: LTC3675 Power Management IC		3.1MB	782KB	5 min	Parts List
Power: LTC3850 Dual Output DC/DC Switching Regulator Controller		2.1MB	772KB	5 min	Parts List
Power: LTC3851 Single Output DC/DC Switching Regulator Controller		1.9MB	547KB	5 min	Parts List
Power: LTC3853 - Triple Output, Multiphase Synchronous Step-Down Controller		1.6MB	283KB	5 min	Parts List
Power: LTC3867 Synchronous Step-Down DC/DC Controller		2.4MB	862KB	10 min	Parts List
Power: LTC3876 Dual DC/DC Controller		2.1MB	647KB	5 min	Parts List
Power: LTC3890 - 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller		3.5MB	919KB	5 min	Parts List
Power: LTC4000 60V Battery Charging Controller and Power Management		3.3MB	990KB	5 min	Parts List
Power: LTC4071 Shunt-Architecture Battery Charger	Play	2.8MB	822KB	5 min	Parts List
Power: LTC4360 LTC4361 LTC4362 Overview		3.3MB	213KB	5 min	Parts List
Power: LTC4425 - Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor		3.3MB	1.2MB	5 min	Parts List
Power: LTPoE++Controller Family Overview		4.0MB	802KB	10 min	Parts List
Power: Power over Ethernet Overview		7.4MB	1.2MB	10 min	Parts List
Signal Condition: LT6656 - 1µA Precision Series Voltage Reference		2.6MB	362KB	5 min	Parts List
Signal Condition: LTC6655 - 0.25ppm Noise, Low Drift Precision Buffered Reference Family		2.5MB	612KB	5 min	Parts List
Signal Condition: Voltage Reference Basics		3.8MB	595KB	5 min	Parts List
Timing: TimerBlox		5.6MB	1.6MB	5 min	Parts List

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LTC3300-1 Battery Balancer - The Linear Technology LTC®3300-1 is a fault-protected controller IC for transformer-based bidirectional active balancing of multicell battery stacks. All associated gate drive circuitry, precision current sensing, fault detection circuitry and a robust serial interface with built-in watchdog timer are integrated. Each LTC3300-1 can balance up to 6 series-connected battery cells with an input common mode voltage up to 36 V. Charge from any selected cell can be transferred at high efficiency to or from 12 or more adjacent cells. More...

LTC2314 Serial Sampling A/D Converter - Linear Technology's LTC2314-14 is a 14-bit, 4.5 Msps, serial sampling A/D converter that draws only 6.2 mA from a wide-range analog supply, adjustable from 2.7 V to 5.25 V. The LTC2314-14 contains an integrated band-gap and reference buffer, which provides a low cost, high performance (20 ppm/°C max), space-saving applications solution. The LTC2314-14 achieves outstanding AC performance of 77 dB SINAD and –85 dB THD while sampling a 500 kHz input frequency. More...

LDO Linear Regulators - Linear Technology manufactures a broad line of high performance low dropout (LDO) linear regulators with fast transient response, excellent line and load regulation, and very wide input voltage range from 0.9 V to 100 V. Output currents range from 20 mA to 10 A, with positive, negative, and multiple output versions available. More...

Linear Technology LT3504 Quad Switching Regulator

LT3504 Quad Switching Regulator - Linear Technology's LT®3504 consists of four 1 A, output-current buck regulators. The LT3504 has a wide operating input range of 3.2 V to 40 V. An on-chip boost regulator allows each channel to operate up to 100% duty cycle and eliminates the need for four external charge pump circuits. The LT3504 is designed to minimize external component count, resulting in a small, simple application circuit. The LT3504 operates robustly in fault conditions. Cycle-by-cycle peak current limit and catch diode current-limit sensing protect the part during overload conditions. More...

Tools and Software

LTSpice IV - LTspice IV is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators. Our enhancements to Spice have made simulating switching regulators extremely fast compared to normal Spice simulators, allowing the user to view waveforms for most switching regulators in just a few minutes. Included in this download are Spice, Macro Models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

Selection Guides

		µModule Power Products Resembling surface mount ICs, Linear Technology's µModule product family includes the silicon IP and passive components for a complete power, signal chain or isolated interface solution in compact, thermally-enhanced footprints. Built with the industry's highest quality standards and rigorously tested, the µModule family dramatically reduces the amount of time and effort needed to successfully design power, signal chain or interface solutions in highly reliable systems.

		Automotive Electronic Solutions This selection guide features high performance, high reliability solutions for a wide range of functions commonly used in today’s automobiles, including telematics, infotainment systems, body electronics, engine management, safety systems and GPS navigation systems.

		High Performance DC/DC Controllers This brochure provides an overview of our high performance DC/DC switching regulator controllers for applications including datacom, telecom, industrial, automotive, medical, avionics, control systems and consumer products. Linear makes power design easier by providing industry-leading field application engineering support; a broad selection of demonstration boards with schematics, layout files and parts lists SwitcherCAD software for simulation; application notes and comprehensive technical documentation.

		Battery Charger Solutions This guide identifies optimum charging solutions for single-cell batteries, multi-cell batteries and battery packs, regardless of chemistry. Linear offers a broad range of charger solutions, including linear chargers, linear chargers with regulators, pulse chargers, switchmode monolithic chargers, switchmode controller chargers, and switchmode smart battery chargers.

		High Speed ADC Products Our high speed ADCs offer the lowest power consumption and highest AC performance in the industry. They incorporate many unique features to ease system design and space constraints, including integrated bypass capacitance and integrated series resistance for 50ohm digital outputs. Each ADC family offers the ability to operate the digital output supply as low as 0.5V, helping to reduce digital feedback and allowing direct connection to low voltage digital interfaces.

		Industrial Signal Chain This product selection guide highlights analog-to-digital converters, digital-to-analog converters, amplifiers, comparators, filters, voltage references, RMS-to-DC converters and silicon oscillators designed for demanding industrial applications. These precise, flexible and rugged devices feature parameters fully guaranteed over the –40°C to 85°C temperature range.

		Power Management for Portable Products Today’s handheld products require extremely small and low profile power management solutions. Maximum efficiency is essential and sensitive wireless receivers in close proximity to switching regulators pose potential interference issues. Linear Technology’s high performance analog ICs provide efficient system solutions for battery charging and management, USB support, system power regulation, display drivers, white LED drivers, SIM and Smart Card interface, photoflash power, and RF PA power supply and control.

		Power Management for LEDs A light-emitting diode (LED) is a semiconductor device that emits incoherent narrow-spectrum light when electrically forward biased, resulting in a form of electroluminescence. The color of the emitted light depends on the chemical composition of the semiconductor material used, and can be near-ultraviolet, visible or infrared. LEDs are more prevalent today than ever before, replacing traditional incandescent bulbs and fluorescent lights in many applications.

		Product Selection Guide This product selection guide features amplifiers, data converters, linear regulators, switching regulators, module DC/DC converters, battery chargers, LED drivers, hot swap/PoE, interface, filters, RF/wireless, timing functions, comparators, supervisory circuits, and references.

		Telecom, Datacom and Industrial DC/DC Conversion Today’s high density power systems require very high efficiency, excellent power density and ease of implementation. Linear Technology offers a family of high performance DC/DC controllers specifically tailored for isolated power conversion for input voltages ranging from 4V to 75V for telecom, datacom and industrial applications. We feature primary and secondary-side control ICs, which provide synchronous rectification, fast transient response, overvoltage and overcurrent protection, and a host of other features.

		Wireless & RF Solutions This brochure presents high performance RF solutions for use in various transceiver architectures employed in 2G, 2.5G and 3G cellular basestations, wireless point-to-point radios, WiMAX, broadband wireless access, satellite receivers, GPS receivers, cable and VOD infrastructure equipment, RFID readers, wireless handheld transceivers and software defined radios.

News

100mA Synchronous Buck Converter Features 150V Input Capability & Just 12µA Quiescent Current
20A μModule Regulator with Guaranteed 1.5% Total VOUT Accuracy from -40ºC to 125ºC Is Housed in Low Profile LGA Package
Isolated 8-Port PoE PSE Controllers Eliminate Optos for Lowest Solution Cost
Cable Drop Compensator Corrects Remote Load Regulation Errors without Sense Wires
I/Q Sampling Digital Predistortion Receiver Enables Acquisition of 300MHz Bandwidth in Base Station Applications
Dual Output Sine Wave to Logic Converter Utilizes Selectable Input Filtering for Lowest Additive Jitter
17V, 2.25MHz, Synchronous Step-Down Regulator Delivers 1A & Requires Only 3.5µA of Quiescent Current
Phase Modulated Full-Bridge Controller Features -40°C to 150°C Operating Junction Temperature Range
FMEA Compliant, 45V LDO Features 3µA IQ
60V Input, Low IQ Inverting DC/DC Controller Simplifies Design by Using Only a Single Inductor
Tiny Low Frequency Clock Supports Long Duration Power-On Reset & Watchdog Timer Applications
250mA Wide VIN Range Buck-Boost Charge Pump Offers Low Conducted and Radiated Noise
15V, 200mA Synchronous Buck-Boost DC/DC Converter with Only 1.3μA of Quiescent Current
Dual 750mA/250mA Linear LDO Regulator with Independent Inputs Offers Ultralow Noise
36Vin µModule Regulator with Configurable Array of Five Low Noise 1A Linear Regulators for Multirail Logic Devices
Smallest 14-Bit, 4.5Msps SAR ADC Integrates Precision Reference in 8mm² TSOT-23 Package
High Efficiency Bidirectional Multicell Active Balancer Maximizes Capacity Recovery in Series-Connected Battery Stacks
Precision 50µV Offset Op Amp Operates with 76V Input Range
Convert Any Input Voltage from 2.8V to 80V into a Fixed Output Voltage or Output Current with Up to 98% Efficiency at 250W
Tiny, Surface Mount, Hermetic Voltage References Offer Outstanding Stability
28µA IQ Triple Output, Buck/Buck/Boost Synchronous DC/DC Controller Maintains Regulation in Automotive Start/Stop Systems
Inverting, Boost or Buck-Boost µModule Converter Delivers up to 700mA with Only Four Small Passive Components
140V Precision Op Amp Features 3pA Bias Current, 3.5μVP-P Noise for High Gain Applications
40V, 1A Synchronous Buck Converter Can Step 36VIN Down to 3.3VOUT with a 2MHz Switching Frequency
New Book Demystifies Black Art of Analog Design
PowerPath Prioritizer Eases Power System Design with Multiple, Disparate Input Sources & Protects Against Reversed Inputs
60V, LED Controller with Internal PWM Generator for Boost, Buck or Buck-Boost High Current LED Applications
Eight-Channel Configurable 1A Buck DC/DCs for Multi-Rail Systems
60V Input Step-Down DC/DC Controller Draws Only 40μA in Battery-Powered Systems
Rail-to-Rail 80V Power Monitor Measures Current & Voltage with +/-0.75% Accuracy
Dual Hot Swap Controller with Flexible Current Limit Rides Through Load Surges without System Interruption
Guaranteed 0.04% Accurate Hybrid/Electric Battery Monitor Includes Isolated Interface
2.5A, 15V Synchronous Boost Regulator Offers 95% Efficiency, 3MHz Switching & Output Disconnect in a 3mm x 4mm DFN
38V, 10A Rugged Step-Down µModule Regulator with Fail Safe Load Protection
WirelessHART & Internet Protocol Wireless Sensor Networks Achieve Industry's Lowest Power Consumption at Less Than 50μA per Node
SPI/Digital or I²C µModule Isolator Provides Three Isolated Power Rails
Dual 13A or Single 26A DC/DC μModule Step-Down Regulator with Integrated Heat Sink Delivers up to 100A
High Efficiency PoE++ PD Controllers Provide up to 90W Delivered Power
45V, 2.3A LED Driver for Boost, Buck or Buck-Boost High Current LED Applications Offers Maximum Junction Temperature of 150°C & QFN Package
Low Noise (1.5nV/√Hz) Fully Differential 1.6GHz Buffer Drives 50 Ohm Load
High Accuracy Temperature Monitor Provides Adjustable Alerts
60V Battery Charging Controller & Power Manager Features Input Maximum Power Point Control
Dual Ideal Diode Controller Replaces Two Schottky Diodes to Provide Efficient Power Supply ORing & Supply Holdup in High Power Applications
Novel Current-Sharing, Diode-OR Controller Eases Design of Reliable Power Systems
Wide Operating Range Ideal Diode Controller Provides Negative Input Protection & Low Current Operation
High Power PolyPhase® Synchronous Boost Controller Features -55°C to 150°C Operating Junction Temperature Range
30MHz-1.4GHz Wideband I/Q Demodulator with IIP2 Optimization & DC Offset Cancellation Improves Zero-IF Receiver Performance
Broadband RF Mixer Achieves 26.9dBm IIP3 With Just 294mW Power Consumption
High Voltage Inverting Charge Pumps Offer Low Input & Output Ripple
36VIN, 600mA µModule Step-Down Regulator in 6.25mm x 11.25mm BGA Consumes only 5µA Quiescent Current
High Accuracy Temperature & Dual Voltage Monitor Provides Flexible Alert Outputs

Resembling surface mount ICs, Linear Technology's µModule product family includes the silicon IP and passive components for a complete power, signal chain or isolated interface solution in compact, thermally-enhanced footprints. Built with the industry's highest quality standards and rigorously tested, the µModule family dramatically reduces the amount of time and effort needed to successfully design power, signal chain or interface solutions in highly reliable systems.

Power Management Solutions Guide

Linear Technology’s product guide of power management solutions for Altera’s FPGAs, CPLDs and structured ASICs available at Digi-Key.