LTC1551L
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LTC1551L

Low Noise, Switched Capacitor Regulated Voltage Inverters

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LTspice LTC1551L - Inductorless (Charge Pump) DC/DC Converters Download 1.15 KB
Part Models 8
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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LTspice LTC1551L - Inductorless (Charge Pump) DC/DC Converters Download 1.15 KB
Part Models 8
1ku List Price Starting From $2.48
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LTC1551L

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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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User Guide

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UPDATED 03/13/2013
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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
LTC1551LCMS8#PBF 8-Lead MSOP external-link
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LTC1551LCMS8#TRPBF 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC1551LCMS8-4.1#PBF 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC1551LCMS8-4.1#TRPBF 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC1551LCS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC1551LCS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC1551LCS8-4.1#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC1551LCS8-4.1#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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Jun 5, 2024

- 24_0004

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

LTC1551LCMS8#PBF

PRODUCTION

LTC1551LCMS8#TRPBF

PRODUCTION

LTC1551LCMS8-4.1#PBF

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LTC1551LCMS8-4.1#TRPBF

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PCN24_0004_Form

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Qualification Results Summary

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Delta Qualification Matrix

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Feb 3, 2020

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

LTC1551LCMS8#PBF

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LTC1551LCMS8#TRPBF

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LTC1551LCMS8-4.1#PBF

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LTC1551LCMS8-4.1#TRPBF

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PCN20_0128_Form

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Material_Report

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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)

LTC1551LCS8#PBF

PRODUCTION

LTC1551LCS8#TRPBF

PRODUCTION

LTC1551LCS8-4.1#PBF

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LTC1551LCS8-4.1#TRPBF

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PCN22_0255_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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Jun 16, 2021

- 21_0026

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

LTC1551LCS8#PBF

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LTC1551LCS8#TRPBF

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LTC1551LCS8-4.1#PBF

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LTC1551LCS8-4.1#TRPBF

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Jun 5, 2024

- 24_0004

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

LTC1551LCMS8#PBF

PRODUCTION

LTC1551LCMS8#TRPBF

PRODUCTION

LTC1551LCMS8-4.1#PBF

PRODUCTION

LTC1551LCMS8-4.1#TRPBF

PRODUCTION

pdf

PCN24_0004_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

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

LTC1551LCMS8#PBF

PRODUCTION

LTC1551LCMS8#TRPBF

PRODUCTION

LTC1551LCMS8-4.1#PBF

PRODUCTION

LTC1551LCMS8-4.1#TRPBF

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pdf

PCN20_0128_Form

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xls

Material_Report

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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)

LTC1551LCS8#PBF

PRODUCTION

LTC1551LCS8#TRPBF

PRODUCTION

LTC1551LCS8-4.1#PBF

PRODUCTION

LTC1551LCS8-4.1#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

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

LTC1551LCS8#PBF

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LTC1551LCS8#TRPBF

PRODUCTION

LTC1551LCS8-4.1#PBF

PRODUCTION

LTC1551LCS8-4.1#TRPBF

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pdf

PCN21_0026_Form

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Material_Report

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Delta Qualification Matrix

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Software & Part Ecosystem

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LTC1551L - Inductorless (Charge Pump) DC/DC Converters Download

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