LTC1550L
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LTC1550L

Low Noise, Switched Capacitor Regulated Voltage Inverters

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LTspice LTC1550L - Inductorless (Charge Pump) DC/DC Converters Download 1.45 KB
Part Models 20
1ku List Price Starting From $2.48
Features
  • Regulated Negative Voltage from a Single Positive Supply
  • Low Output Ripple: Less Than 1mVP-P Typ
  • High Charge Pump Frequency: 900kHz Typ
  • Small Charge Pump Capacitors: 0.1µF
  • Requires Only Four External Capacitors
  • Fixed ±4.1V, ±2.5V, ±2V or Adjustable Output
  • Shutdown Mode Drops Supply Current to <1µA
  • High Output Current: Up to 20mA (Depending on VCC to VOUT Range)
  • Output Regulation: 2.5% Over Line, Load and Temperature
  • Available in 8-Lead MSOP, 8-Lead Narrow SO and 16-Lead Narrow SSOP
Additional Details
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The LTC1550L/LTC1551L are switched capacitor charge pump voltage inverters which include internal linear post-regulators to minimize output ripple. The LTC1550L fixed output voltage versions include ±4.1V, ±2.5V and ±2V with ripple voltages typically below 1mVP-P. The LTC1550L is also available in an adjustable output voltage version. The LTC1550L/LTC1551L are ideal for use as bias voltage generators for GaAs transmitter FETs in portable RF and cellular telephone applications.

The LTC1550L/LTC1551L operate from single 2.7V to 5.5V supplies and draw typical quiescent currents of 3.5mA with a 5V supply. Each device includes a TTL compatible Shutdown pin which drops supply current to 0.2µA typically. The LTC1550L Shutdown pin is active low (SHDN), while the LTC1551L Shutdown pin is active high (SHDN). Only four external components are required: an input bypass capacitor, two 0.1µF charge pump capacitors and a filter capacitor at the linear regulator output. The adjustable LTC1550L/LTC1551L require two additional resistors to set the output voltage. The LTC1550L/LTC1551L will supply up to 20mA (depending on VCC to VOUT range), while maintaining guaranteed output regulation of ±2.5%.

Both fixed voltage and adjustable LTC1550L/LTC1551L are available in 8-lead MSOP and SO plastic packages: the adjustable LTC1550L is also available in a 16-pin SSOP with the REG pin.

Applications

  • GaAs FET Bias Generators
  • Negative Supply Generators
  • Battery-Powered Systems
  • Single Supply Applications
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Documentation View All Documentation
LTspice LTC1550L - Inductorless (Charge Pump) DC/DC Converters Download 1.45 KB
Part Models 20
1ku List Price Starting From $2.48
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LTC1550L

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UPDATED 10/02/2017
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LTC1550L/LTC1551L: Low Noise, Switched Capacitor Regulated Voltage Inverters Data Sheet

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UPDATED 02/21/2008
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LTC1550L/LTC1551L: 低ノイズ、スイッチトキャパシタ 安定化電圧インバータ データシート

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UPDATED 03/23/2018
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Documentation

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC1550LCGN#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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LTC1550LCGN#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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LTC1550LCMS8#PBF 8-Lead MSOP external-link
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LTC1550LCMS8#TRPBF 8-Lead MSOP external-link
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LTC1550LCMS8-2#PBF 8-Lead MSOP external-link
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LTC1550LCMS8-2#TRPBF 8-Lead MSOP external-link
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LTC1550LCMS8-2.5#PBF 8-Lead MSOP external-link
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LTC1550LCMS8-2.5#TRPBF 8-Lead MSOP external-link
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LTC1550LCMS8-4.1#PBF 8-Lead MSOP external-link
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LTC1550LCMS8-4.1#TRPBF 8-Lead MSOP external-link
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LTC1550LCS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8-2#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8-2#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8-2.5#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8-2.5#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8-4.1#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LCS8-4.1#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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LTC1550LIGN#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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LTC1550LIGN#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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Oct 11, 2022

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Epoxy Change from Henkel 8290 to 8290A for GN Package

LTC1550LCGN#PBF

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Apr 6, 2022

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Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

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Jun 5, 2024

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Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

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LTC1550LCMS8#TRPBF

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LTC1550LCMS8-2#PBF

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LTC1550LCMS8-2.5#PBF

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Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

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Oct 12, 2022

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1550LCS8#PBF

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LTC1550LCS8#TRPBF

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LTC1550LCS8-2#PBF

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LTC1550LCS8-2.5#PBF

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Jun 16, 2021

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Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

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LTC1550LCS8-2#PBF

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Oct 11, 2022

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Epoxy Change from Henkel 8290 to 8290A for GN Package

LTC1550LCGN#PBF

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LTC1550LCGN#TRPBF

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LTC1550LIGN#PBF

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LTC1550LIGN#TRPBF

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Apr 6, 2022

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Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

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LTC1550LCGN#TRPBF

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LTC1550LIGN#PBF

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PCN22_0066_Form

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Jun 5, 2024

- 24_0004

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Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC1550LCMS8#PBF

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LTC1550LCMS8#TRPBF

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LTC1550LCMS8-2#PBF

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LTC1550LCMS8-2#TRPBF

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LTC1550LCMS8-2.5#PBF

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PCN24_0004_Form

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Material_Report

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Qualification Results Summary

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Delta Qualification Matrix

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Feb 3, 2020

- 20_0128

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Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1550LCMS8#PBF

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LTC1550LCMS8#TRPBF

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LTC1550LCMS8-2#PBF

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LTC1550LCMS8-2#TRPBF

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PCN20_0128_Form

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Oct 12, 2022

- 22_0255

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Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1550LCS8#PBF

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LTC1550LCS8#TRPBF

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LTC1550LCS8-2#PBF

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PCN22_0255_Form

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Material_Report

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Delta Qualification Matrix

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Jun 16, 2021

- 21_0026

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Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC1550LCS8#PBF

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LTC1550LCS8#TRPBF

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LTC1550LCS8-2#PBF

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LTC1550LCS8-2#TRPBF

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LTC1550LCS8-2.5#PBF

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LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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LTC1550L - Inductorless (Charge Pump) DC/DC Converters Download

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