Linear Technology Manuals - Page 49

Linear Technology manuals, page 49

• LINEAR TECHNOLOGY - 1 LTC1148 handbook

  The LTC1148 series is a family of synchronous step-down switching regulator controllers featuring automatic Burst Mode operation to maintain high efficiencies at low output currents.

• LINEAR TECHNOLOGY LTC1778/LTC1778-1 Manual

  LTC1778/LTC1778-1 1778fb No RSENSEWide Operating Range, TM Step-Down Controller is a synchronous step-down switching regulator controller without resistor, which has extremely fast transient response and stable ceramic COUT. It can be used in notebook computers and palmtop computers.

• LINEAR TECHNOLOGY LT6013/LT6014 Manual

  The LT®6013 and LT6014 are precision op amps from Linear Technology Corporation that combine low noise and high precision input performance with low power consumption and rail-to-rail output swing.

• LINEAR TECHNOLOGY - 1 LT1108 handbook

  The LT1108 is an improved version of the LT1173, which uses a 60% duty cycle for lower power consumption and higher output current. Suitable for battery-powered systems, it can operate over a 2V to 30V voltage range and output adjustable 5V or 12V.

• LINEAR TECHNOLOGY LTC1433/LTC1434 Manual

  The LTC ®1433/LTC1434 are monolithic pulse width modulated step-down DC/DC converters. By utilizing current mode switching techniques, they provide excellent AC and DC load and line regulation.

• LINEAR TECHNOLOGY LT1683 Manual

  The LT ®1683 is a switching regulator controller designed to lower conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by controlling the voltage and current slew rates of external N-channel MOSFET switches. Current and voltage slew rates can be independently set to optimize harmonic content of the switching waveforms vs efficiency. The LT1683 can reduce high frequency harmonic power by as much as 40dB with only minor losses in efficiency. The LT1683 utilizes a dual output (push-pull) current mode architecture optimized for low noise topologies. The IC includes gate drivers and all necessary oscillator, control and protection circuitry. Unique error amp cir- cuitry can regulate both positive and negative voltages. The oscillator may be synchronized to an external clock for more accurate placement of switching harmonics. Protection features include gate drive lockout for low VIN, opposite gate lockout, soft-start, output current limit, short-circuit current limiting, gate drive overvoltage clamp and input supply undervoltage lockout.

• LINEAR TECHNOLOGY - 1 LTC4244/LTC4244-1 handbook

  The document introduces the features and characteristics of the LTC4244/LTC4244-1 product. The product can control -12V, 3.3V, 5V and 12V power supplies, with a ±14.4V absolute maximum rating, 12VIN and -12VIN input pins have transient voltage tolerance, adjustable foldback current limiting with circuit breaker, local PCI_RST# logic and PRECHARGE output for biasing I/O pins, LTC4244-1 designed for applications without -12V and with 20-lead narrow SSOP package.

• LINEAR TECHNOLOGY LTC3455 Manual

  The LTC3455 is a complete power management solution for a variety of portable applications. The device contains two synchronous step-down DC/DC converters, a USB power controller, a full-featured Li-Ion battery charger, a Hot Swap output, a low-battery indicator, and numerous internal protection features.

• LINEAR TECHNOLOGY LT1302/LT1302-5 Manual

  LT1302/LT1302-5 Micropower High Output Current Step-Up Adjustable and Fixed 5V DC/DC Converters

• LINEAR TECHNOLOGY LT1425 Manual

  The LT1425 is a monolithic high power switching regulator specifically designed for the isolated flyback topology. No “third winding” or optoisolator is required; the integrated circuit senses the isolated output voltage directly from the primary side flyback waveform. A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry. The LT1425 operates with input supply voltages from 3V to 20V and draws only 7mA quiescent current. It can deliver output power up to 6W with no external power devices. By utilizing current mode switching techniques, it provides excellent AC and DC line regulation. The LT1425 has a number of features not found on other switching regulator ICs. Its unique control circuitry can maintain regulation well into discontinuous mode in most applications. Optional load compensation circuitry allows for improved load regulation. An externally activated shutdown mode reduces total supply current to 15µA for standby operation.

• LINEAR TECHNOLOGY LT6650 Manual

  The LT6650 is a micropower, low voltage 400mV reference. Operating with supplies from 1.4V up to 18V, the device draws only 5.6µA typical, making it ideal for low voltage systems as well as handheld instruments and industrial control systems.

• LINEAR TECHNOLOGY LTC2436-1 Manual(1)

  The LTC2436-1 is a 2-channel differential input micropower 16-bit No Latency ∆Σ analog-to-digital converter with an integrated oscillator. It provides 0.5LSB INL and 800nV RMS noise independent of VREF. The two differential channels convert alternately with a channel identification included in the conversion result. It uses delta-sigma technology and provides single conversion settling of the digital filter. Through a single pin, the LTC2436-1 can be configured for better than 87dB input differential mode rejection at 50Hz and 60Hz ±2%, or it can be driven by an external oscillator for a user defined rejection frequency. The internal oscillator requires no external frequency setting components. The converter accepts any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement configurations. The full-scale differential input range is from –0.5•VREF to 0.5•VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be independently set anywhere between GND and VCC. The DC common mode input rejection is better than 140dB. The LTC2436-1 communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE protocols.

• LINEAR TECHNOLOGY LTM4605 Manual

  The LTM4605 is a high efficiency switching mode buck-boost power supply from Philips. It operates over an input voltage range of 4.5V to 20V and supports an output voltage range of 0.8V to 16V. The maximum output current is 5A. This product uses a single inductor architecture, and the input voltage can be higher, lower, or equal to the output voltage. The LTM4605 uses a high switching frequency and current mode architecture, which provides a very fast transient response to line and load changes. The product also has overvoltage and foldback current protection. The LTM4605 is available in a small, thermally enhanced 15mm x 15mm x 2.8mm LGA package and is RoHS compliant.

• LINEAR TECHNOLOGY LTC1876 Manual

  The data sheet introduces the features and characteristics of LTC1876 high performance triple output switching regulator and step-up regulator. The chip uses dual phase, dual synchronous step-down switching controller, drives all N-channel synchronous power MOSFET stages, and an internal 1A, 36V step-up regulator provides the third output. The chip uses OPTI-LOOP compensation, which optimizes the transient response over a wide range of output capacitance and ESR values. Each controller's RUN/SS pin provides both soft-start and an optional timed, short-circuit shutdown function that can be configured to latch off one or both controllers. Current foldback provides additional short-circuit protection. In an overvoltage condition, the bottom MOSFET is latched on until VOUT returns to normal. The FCB pin can be used to inhibit Burst Mode operation or to enable regulation of a secondary output voltage. The step-up regulator operates at 1.2MHz, allowing the use of tiny low cost capacitors and inductors. In addition, its internal 1A switch allows high current outputs to be generated. Its current mode control scheme provides excellent line and load regulation.

• LINEAR TECHNOLOGY LTC1261 Manual

  The LTC1261 is a voltage inverter that can provide a regulated negative voltage from a single positive supply. It features adjustable or fixed output voltages, low output ripple, shutdown mode, and guaranteed output regulation.