Datasheet Linear Technology LT1533IS#TRPBF

ManufacturerLinear Technology
SeriesLT1533
Part NumberLT1533IS#TRPBF

Ultralow Noise 1A Switching Regulator

Datasheets

Datasheet LT1533
PDF, 330 Kb, Language: en, File uploaded: Sep 3, 2017, Pages: 20
Ultralow Noise 1A Switching Regulator
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Prices

Packaging

PackageSO-16
Package CodeS
Package Index05-08-1610 (S16)

Parametrics

Demo BoardsDC173B,DC230A-A,DC230A-B,DC230A-C,DC230A-D
Design ToolsLTspice Model
Export Controlno
FeaturesLow EMI, Adjustable Slew Rate, External Synchronization
Frequency250 kHz
Frequency Adjust Range25kHz - 250kHz
Frequency Sync Range25kHz - 375kHz
Integrated Inductorno
Ishutdown1 µA
Isupply0.012 mA
Monolithicyes
Number of Outputs1
Operating Temperature Range-40 to 85 °C
Polyphaseno
Switch Current1.25 A
Synchronousno
TopologyPush-Pull
Vin Max23 V
Vin Min2.55 V
Vout Max30 V
Vout Min1.3 V

Eco Plan

RoHSCompliant

Application Notes

  • High Voltage, Low Noise, DC/DC Converters &mdash AN118
    PDF, 2.6 Mb, File published: Mar 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 configurations 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 filtering methods that are usually impractical.
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  • A Monolithic Switching Regulator with 100ВµV Output Noise &mdash AN70
    PDF, 1.7 Mb, Language: en, File published: Oct 1, 1997
    This publication details circuitry and applications considerations for the LT1533 low noise switching regulator. Eleven DC/DC converter circuits are presented, some offering <100µV output noise in a 100MHz bandwidth. Tutorial sections detail low noise DC/DC design, measurement, probing and layout techniques, and magnetics selection.
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  • Circuitry for Signal Conditioning and Power Conversion &mdash AN75
    PDF, 508 Kb, File published: Mar 1, 1999
    This publication includes designs for data converters and signal conditioners, transducer circuits, crystal oscillators and power converters. Wideband and micropower circuitry receive special attention. Tutorials on micropower design techniques and parasitic effects of test equipment are included.
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  • Linear Technology Magazine Circuit Collection, Volume IV &mdash AN84
    PDF, 2.4 Mb, File published: Apr 1, 2000
    Application Note 84 is a collection of "power circuits" from the years 1996 through 1998 as seen in the pages of Linear Technology magazine. This Application Note collects circuits that can output tens of amps to circuits that can operate a handheld device for several years. In addition to a wide variety of traditional power supply circuits (Buck, Boost, Inverting, Flyback, Linear Regulators, etc.) we include circuits for charging batteries, several Power Management circuits as well as circuits that highlight a very low noise switching regulator.
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  • Current Sources for Fiber Optic Lasers: A Compendium of Pleasant Current Events &mdash AN90
    PDF, 409 Kb, File published: Apr 1, 2002
    A large group of fiber optic lasers are powered by DC current. Laser drive is supplied by a current source with modulation added to the signal. The current source, although conceptually simple, constitutes an extraordinarily tricky design problem. There are a number of practical requirements for a fiber optic current source and failure to consider them can cause laser and/or optical component destruction. This application note describes ten laser current source circuits with a range of capabilities. High and low current types are presented, along with designs for grounded anode, cathode or floating operation. Each circuit also includes laser protection features. Appended sections cover laser load simulation and current source noise measurement techniques.
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  • Slew Rate Verification for Wideband Amplifiers: The Taming of the Slew &mdash AN94
    PDF, 594 Kb, File published: May 1, 2003
    Wideband amplifiers achieve slew rates beyond 2500V/µs. Verifying slew rates at this speed requires special techniques. In particular, a subnanosecond rise time input step is necessary for accurate slew rate measurement. A pulse generator with a 360 picosecond rise time is shown, and its construction detailed. Slew rate test results using this generator are presented and compared to data taken with slower rise time generators. Appendices cover high speed measurement technique, generator output level shifting and picosecond signal path construction considerations.
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Design Notes

  • Off-Line Low Noise Power Supply Does Not Require Filtering to Meet FCC Emission Requirements &mdash DN175
    PDF, 113 Kb, File published: Mar 1, 1998
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Articles

  • LT1533 Ultralow Noise Switching Regulator for High Voltage or High Current Applications &mdash LT Journal
    PDF, 223 Kb, File published: Feb 1, 1998
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Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Ultralow Noise Regulators

Other Names:

LT1533ISTRPBF, LT1533IS TRPBF

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