LT1307
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LT1307

Single Cell Micropower 600kHz PWM DC/DC Converters

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 13
1ku List Price Starting From $2.53
Features
  • Uses Small Ceramic Capacitors
  • 50µA Quiescent Current (LT1307)
  • 1mA Quiescent Current (LT1307B)
  • Operates with VIN as Low as 1V
  • 600kHz Fixed Frequency Operation
  • Starts into Full Load
  • Low Shutdown Current: 3µA
  • Low-Battery Detector
  • 3.3V at 75mA from a Single Cell
  • Automatic Burst Mode® Operation at Light Load (LT1307)
  • Continuous Switching at Light Load (LT1307B)
  • Low VCESAT Switch: 295mV at 500mA
Additional Details
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The LT1307/LT1307B are micropower, fixed frequency DC/DC converters that operate from an input voltage as low as 1V. First in the industry to achieve true current mode PWM performance from a single cell supply, the LT1307 features automatic shifting to power saving Burst Mode operation at light loads. High efficiency is maintained over a broad 100uA to 100mA load range. The LT1307B does not shift into Burst Mode operation at light loads, eliminating low frequency output ripple at the expense of light load efficiency. The devices contain a low-battery detector with a 200mV reference and shut down to less than 5µA. No load quiescent current of the LT1307 is 50µA and the internal NPN power switch handles a 500mA current with a voltage drop of just 295mV.

Unlike competitive devices, large electrolytic capacitors are not required with the LT1307/LT1307B in single cell applications. The high frequency (600kHz) switching allows the use of tiny surface mount multilayer ceramic (MLC) capacitors along with small surface mount inductors. The devices work with just 10µF of output capacitance and require only 1µF of input bypassing.

The LT1307/LT1307B are available in 8-lead MSOP, PDIP and SO packages.

Applications

  • Pagers
  • Cordless Telephones
  • GPS Receivers
  • Battery Backup
  • Portable Electronic Equipment
  • Glucose Meters
  • Diagnostic Medical Instrumentation
Part Models 13
1ku List Price Starting From $2.53

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LT1307BCMS8#PBF

PRODUCTION

LT1307BCMS8#TRPBF

PRODUCTION

LT1307CMS8#PBF

PRODUCTION

LT1307CMS8#TRPBF

PRODUCTION

Feb 3, 2020

- 20_0128

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

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PRODUCTION

LT1307CMS8#PBF

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LT1307CMS8#TRPBF

PRODUCTION

Dec 14, 2023

- 22_0255

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

LT1307BCS8#PBF

PRODUCTION

LT1307BCS8#TRPBF

PRODUCTION

LT1307BIS8#PBF

PRODUCTION

LT1307BIS8#TRPBF

PRODUCTION

LT1307CS8#PBF

PRODUCTION

LT1307CS8#TRPBF

PRODUCTION

LT1307IS8#PBF

PRODUCTION

LT1307IS8#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

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

LT1307BCS8#PBF

PRODUCTION

LT1307BCS8#TRPBF

PRODUCTION

LT1307BIS8#PBF

PRODUCTION

LT1307BIS8#TRPBF

PRODUCTION

LT1307CS8#PBF

PRODUCTION

LT1307CS8#TRPBF

PRODUCTION

LT1307IS8#PBF

PRODUCTION

LT1307IS8#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

Filter by Model

reset

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LT1307BCMS8#PBF

PRODUCTION

LT1307BCMS8#TRPBF

PRODUCTION

LT1307CMS8#PBF

PRODUCTION

LT1307CMS8#TRPBF

PRODUCTION

Feb 3, 2020

- 20_0128

arrow down

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

LT1307BCMS8#PBF

PRODUCTION

LT1307BCMS8#TRPBF

PRODUCTION

LT1307CMS8#PBF

PRODUCTION

LT1307CMS8#TRPBF

PRODUCTION

Dec 14, 2023

- 22_0255

arrow down

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

LT1307BCS8#PBF

PRODUCTION

LT1307BCS8#TRPBF

PRODUCTION

LT1307BIS8#PBF

PRODUCTION

LT1307BIS8#TRPBF

PRODUCTION

LT1307CS8#PBF

PRODUCTION

LT1307CS8#TRPBF

PRODUCTION

LT1307IS8#PBF

PRODUCTION

LT1307IS8#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

arrow down

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

LT1307BCS8#PBF

PRODUCTION

LT1307BCS8#TRPBF

PRODUCTION

LT1307BIS8#PBF

PRODUCTION

LT1307BIS8#TRPBF

PRODUCTION

LT1307CS8#PBF

PRODUCTION

LT1307CS8#TRPBF

PRODUCTION

LT1307IS8#PBF

PRODUCTION

LT1307IS8#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

Software & Part Ecosystem

Software & Part Ecosystem

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.

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