LTC3407A-2
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LTC3407A-2

Dual Synchronous 800mA, 2.25MHz Step-Down DC/DC Regulator

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $3.54
Features
  • High Efficiency: Up to 95%
  • Low Ripple (<35mVPK-PK) Burst Mode Operation; IQ = 40µA
  • 2.25MHz Constant Frequency Operation
  • No Schottky Diodes Required
  • Low RDS(ON) Internal Switches: 0.35Ω
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Short-Circuit Protected
  • Low Dropout Operation: 100% Duty Cycle
  • Ultralow Shutdown Current: IQ <1µA
  • Output Voltages from 5V down to 0.6V
  • Power-On Reset Output
  • Externally Synchronizable Oscillator
  • Optional External Soft-Start
  • Small Thermally Enhanced MSOP and 3mm × 3mm DFN Packages
Additional Details
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The LTC3407A-2 is a dual, constant frequency, synchronous step-down DC/DC converter. Intended for low power applications, it operates from a 2.5V to 5.5V input voltage range and has a constant 2.25MHz switching frequency, enabling the use of tiny, low cost capacitors and inductors 1mm or less in height. Each output voltage is adjustable from 0.6V to 5V. Internal synchronous 0.35Ω, 1A power switches provide high efficiency without the need for external Schottky diodes.

A user selectable mode input is provided to allow the user to trade-off ripple noise for low power efficiency. Burst Mode® operation provides the highest efficiency at light loads, while Pulse Skip Mode provides the lowest ripple noise at light loads.

To further maximize battery life, the P-channel MOSFETs are turned on continuously in dropout (100% duty cycle), and both channels draw a total quiescent current of only 40µA. In shutdown, the device draws <1µA.

IOUT FSW Features
LTC3407 2x 600mA 1.5MHz
LTC3407-2 2x 800mA 2.25MHz
LTC3407-3 2x 800mA 2.25MHz Fixed 1.8V/3.3V
LTC3407-4 2x 800mA 2.25MHz Reduced POR Delay
LTC3407A 2x 800mA 1.5MHz Low Ripple Burst Mode
LTC3407A-2 2x 800mA 2.25MHz Low Ripple Burst Mode

Applications

  • PDAs/Palmtop PCs
  • Digital Cameras
  • Cellular Phones
  • Wireless and DSL Modems
Part Models 8
1ku List Price Starting From $3.54

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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

Jul 12, 2022

- 22_0157

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]

Jun 21, 2022

- 22_0050

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

Feb 4, 2020

- 20_0130

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3407AEMSE-2#PBF

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PRODUCTION

LTC3407AIMSE-2#PBF

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LTC3407AIMSE-2#TRPBF

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

Jul 12, 2022

- 22_0157

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]

Jun 21, 2022

- 22_0050

arrow down

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

Feb 4, 2020

- 20_0130

arrow down

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3407AEMSE-2#PBF

PRODUCTION

LTC3407AEMSE-2#TRPBF

PRODUCTION

LTC3407AIMSE-2#PBF

PRODUCTION

LTC3407AIMSE-2#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Tools & Simulations

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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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