LT1317
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LT1317

Micropower, 600kHz PWM DC/DC Converters

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LTspice LT1317 - Switching Regulators Download 1.7 KB
Part Models 12
1ku List Price Starting From $3.28
Features
  • 100µA Quiescent Current
  • Operates with VIN as Low as 1.5V
  • 600kHz Fixed Frequency Operation
  • Starts into Full Load
  • Low-Battery Detector Active in Shutdown
  • Automatic Burst Mode Operation at Light Load (LT1317)
  • Continuous Switching at Light Loads (LT1317B)
  • Low VCESAT Switch: 300mV at 500mA
  • Pin for Pin Compatible with the LT1307/LT1307B
Additional Details
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The LT1317/LT1317B are micropower, fixed frequency step-up DC/DC converters that operate over a wide input voltage range of 1.5V to 12V. The LT1317 features automatic shifting to power saving Burst Mode™ operation at light loads. High efficiency is maintained over a broad 300µA to 200mA load range. Peak switch current during Burst Mode operation is kept below 250mA for most operating conditions which results in low output ripple voltage, even at high input voltages. The LT1317B does not shift into Burst Mode operation at light loads, eliminating low frequency output ripple at the expense of light load efficiency.

The LT1317/LT1317B contain an internal low-battery detector with a 200mV reference that stays alive when the device goes into shutdown.

No-load quiescent current of the LT1317 is 100µA and shuts down to 30µA. The internal NPN power switch handles a 500mA current with a voltage drop of just 300mV.

The LT1317/LT1317B are available in MS8 and SO-8 packages.

Applications

  • Cellular Telephones
  • Cordless Telephones
  • Pagers
  • GPS Receivers
  • Battery Backup
  • Portable Electronic Equipment
  • Glucose Meters
  • Diagnostic Medical Instrumentation
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Documentation View All Documentation
LTspice LT1317 - Switching Regulators Download 1.7 KB
Part Models 12
1ku List Price Starting From $3.28
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LT1317

Documentation

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Data Sheet

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UPDATED 10/11/2017
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LT1317: Micropower, 600kHz PWM DC/DC Converters Data Sheet

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UPDATED 05/22/2005
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LT1317/LT1317B: マイクロパワー、600 kHz PWM DC/DC コンバータ データシート

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Reliability Data

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UPDATED 03/23/2018
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User Guide

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UPDATED 09/24/2009
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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
LT1317BCMS8#PBF 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1317BCMS8#TRPBF 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1317BCS8#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
LT1317BCS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317BIS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317BIS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317CMS8#PBF 8-Lead MSOP external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317CMS8#TRPBF 8-Lead MSOP external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317CS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317CS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317IS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1317IS8#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

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Product Lifecycle

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Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT1317BCMS8#PBF

PRODUCTION

LT1317BCMS8#TRPBF

PRODUCTION

LT1317CMS8#PBF

PRODUCTION

LT1317CMS8#TRPBF

PRODUCTION

pdf

PCN24_0003_Form

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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

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

LT1317BCMS8#PBF

PRODUCTION

LT1317BCMS8#TRPBF

PRODUCTION

LT1317CMS8#PBF

PRODUCTION

LT1317CMS8#TRPBF

PRODUCTION

pdf

PCN20_0128_Form

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xls

Material_Report

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Dec 14, 2023

- 22_0255

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

LT1317BCS8#PBF

PRODUCTION

LT1317BCS8#TRPBF

PRODUCTION

LT1317BIS8#PBF

PRODUCTION

LT1317BIS8#TRPBF

PRODUCTION

LT1317CS8#PBF

PRODUCTION

LT1317CS8#TRPBF

PRODUCTION

LT1317IS8#PBF

PRODUCTION

LT1317IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

Jun 11, 2021

- 21_0060

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

LT1317BCS8#PBF

PRODUCTION

LT1317BCS8#TRPBF

PRODUCTION

LT1317BIS8#PBF

PRODUCTION

LT1317BIS8#TRPBF

PRODUCTION

LT1317CS8#PBF

PRODUCTION

LT1317CS8#TRPBF

PRODUCTION

LT1317IS8#PBF

PRODUCTION

LT1317IS8#TRPBF

PRODUCTION

pdf

PCN21_0060_Form

external-icon

xls

Material_Report

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xlsm

Delta Qualification Matrix

Download

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Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT1317BCMS8#PBF

PRODUCTION

LT1317BCMS8#TRPBF

PRODUCTION

LT1317CMS8#PBF

PRODUCTION

LT1317CMS8#TRPBF

PRODUCTION

pdf

PCN24_0003_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Feb 3, 2020

- 20_0128

arrow down

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

LT1317BCMS8#PBF

PRODUCTION

LT1317BCMS8#TRPBF

PRODUCTION

LT1317CMS8#PBF

PRODUCTION

LT1317CMS8#TRPBF

PRODUCTION

pdf

PCN20_0128_Form

external-icon

xls

Material_Report

Download
Dec 14, 2023

- 22_0255

arrow down

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

LT1317BCS8#PBF

PRODUCTION

LT1317BCS8#TRPBF

PRODUCTION

LT1317BIS8#PBF

PRODUCTION

LT1317BIS8#TRPBF

PRODUCTION

LT1317CS8#PBF

PRODUCTION

LT1317CS8#TRPBF

PRODUCTION

LT1317IS8#PBF

PRODUCTION

LT1317IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Jun 11, 2021

- 21_0060

arrow down

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

LT1317BCS8#PBF

PRODUCTION

LT1317BCS8#TRPBF

PRODUCTION

LT1317BIS8#PBF

PRODUCTION

LT1317BIS8#TRPBF

PRODUCTION

LT1317CS8#PBF

PRODUCTION

LT1317CS8#TRPBF

PRODUCTION

LT1317IS8#PBF

PRODUCTION

LT1317IS8#TRPBF

PRODUCTION

pdf

PCN21_0060_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

reference details image

DC194A-B

LT1317BCMS8 | MICROPOWER DC/DC CONVERTER, FIXED FREQ., 2 CELL to 3.3/5.0V @ 300/180mA

reference details image

DC194A-A

LT1317CMS8 | MICROPOWER DC/DC CONVERTER, BURST MODE, 2 CELL to 3.3/5.0V @ 300/180mA

Evaluation Kits2

evaluation kit item images

DC194A-B

LT1317BCMS8 | MICROPOWER DC/DC CONVERTER, FIXED FREQ., 2 CELL to 3.3/5.0V @ 300/180mA
evaluation kit item images

DC194A-A

LT1317CMS8 | MICROPOWER DC/DC CONVERTER, BURST MODE, 2 CELL to 3.3/5.0V @ 300/180mA
Tools & Simulations

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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LT1317 - Switching Regulators Download

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