LTC3245
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3245

Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $3.37
Features
  • 2.7V to 38V VIN Range
  • IQ = 18μA Operating; 4μA in Shutdown
  • 12V to 5V Efficiency = 81%
  • Multimode Operation (2:1, 1:1, 1:2) with Automatic Mode Switching
  • Low Noise, Constant Frequency Operation
  • Pin Selectable Burst Mode® Operation
  • VOUT: Fixed 3.3V, 5V or Adjustable (2.5V to 5V)
  • IOUT Up to 250mA
  • Overtemperature and Short-Circuit Protection
  • Operating Junction Temperature: 150°C Maximum
  • Thermally Enhanced 12-Pin MSOP and Low Profile 12-Pin (3mm × 4mm) DFN Packages
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC3245 is a switched capacitor buck-boost DC/DC converter that produces a regulated output (3.3V, 5V or adjustable) from a 2.7V to 38V input. The device uses switched capacitor fractional conversion to maintain regulation over a wide range of input voltage. Internal circuitry automatically selects the conversion ratio to optimize efficiency as input voltage and load conditions vary. No inductors are required.

The unique constant frequency architecture provides a lower noise output than conventional charge pump regulators. To optimize efficiency at the expense of slightly higher output ripple, the device has pin selectable Burst Mode operation.

Low operating current (20μA with no load, 4μA in shutdown) and low external parts count (three small ceramic capacitors) make the LTC3245 ideally suited for low power, space constrained automotive/industrial applications. The device is short-circuit and overtemperature protected, and is available in thermally enhanced 12-pin MSOP and low profile 3mm × 4mm 12-pin DFN packages.

APPLICATIONS

  • Automotive ECU/CAN Transceiver Supplies
  • Industrial Housekeeping Supplies
  • Low Power 12V to 5V Conversion
Part Models 16
1ku List Price Starting From $3.37

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3245EDE#PBF
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LTC3245EMSE#TRPBF
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LTC3245HMSE#TRPBF
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LTC3245IMSE#PBF
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LTC3245IMSE#WTRPBF
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LTC3245JMSE#WPBF
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LTC3245JMSE#WTRPBF
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LTC3245MPMSE#PBF
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LTC3245MPMSE#TRPBF
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Product Lifecycle

PCN

Jul 31, 2020

- 20_0245

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3245EDE#PBF

PRODUCTION

LTC3245EDE#TRPBF

PRODUCTION

LTC3245EMSE#PBF

PRODUCTION

LTC3245EMSE#TRPBF

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LTC3245HMSE#PBF

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LTC3245HMSE#TRPBF

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LTC3245IDE#PBF

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LTC3245IDE#TRPBF

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LTC3245IMSE#PBF

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LTC3245IMSE#TRPBF

PRODUCTION

LTC3245MPMSE#PBF

PRODUCTION

LTC3245MPMSE#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3245EMSE#PBF

PRODUCTION

LTC3245EMSE#TRPBF

PRODUCTION

LTC3245HMSE#PBF

PRODUCTION

LTC3245HMSE#TRPBF

PRODUCTION

LTC3245MPMSE#PBF

PRODUCTION

LTC3245MPMSE#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

Apr 18, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 31, 2020

- 20_0245

arrow down

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3245EDE#PBF

PRODUCTION

LTC3245EDE#TRPBF

PRODUCTION

LTC3245EMSE#PBF

PRODUCTION

LTC3245EMSE#TRPBF

PRODUCTION

LTC3245HMSE#PBF

PRODUCTION

LTC3245HMSE#TRPBF

PRODUCTION

LTC3245IDE#PBF

PRODUCTION

LTC3245IDE#TRPBF

PRODUCTION

LTC3245IMSE#PBF

PRODUCTION

LTC3245IMSE#TRPBF

PRODUCTION

LTC3245MPMSE#PBF

PRODUCTION

LTC3245MPMSE#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0129

arrow down

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3245EMSE#PBF

PRODUCTION

LTC3245EMSE#TRPBF

PRODUCTION

LTC3245HMSE#PBF

PRODUCTION

LTC3245HMSE#TRPBF

PRODUCTION

LTC3245MPMSE#PBF

PRODUCTION

LTC3245MPMSE#TRPBF

PRODUCTION

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

Apr 18, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC1802A

LTC3245EMSE Demo Board | Buck-Boost Charge Pump, 2.7V ≤ VIN ≤ 38V, VOUT = 1.2V/3.3V/5V @ 250mA

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DC1802A

LTC3245EMSE Demo Board | Buck-Boost Charge Pump, 2.7V ≤ VIN ≤ 38V, VOUT = 1.2V/3.3V/5V @ 250mA

LTC3245EMSE Demo Board | Buck-Boost Charge Pump, 2.7V ≤ VIN ≤ 38V, VOUT = 1.2V/3.3V/5V @ 250mA

Product Detail

Demonstration circuit DC1802A is a wide VIN range, low noise, 250mA buck-boost charge pump featuring the LTC3245EMSE. It has an input supply range of 2.7V to 38V and provides a jumper-selectable 5V, 3.3V, or adjustable output (set to 1.2V) at 250mA.

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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