LTC3526L-2
Info : RECOMMENDED FOR NEW DESIGNS
searchIcon
cartIcon

LTC3526L-2

550mA 2MHz Synchronous Step-Up DC/DC Converters in 2mm × 2mm DFN

Show More showmore-icon

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $2.24
Features
  • Delivers 3.3V at 100mA from a Single Alkaline/NiMH Cell or 3.3V at 200mA from Two Cells
  • VIN Start-Up Voltage: 680mV
  • 1.5V to 5.25V VOUT Range
  • Up to 94% Efficiency
  • Output Disconnect
  • 2MHz Fixed Frequency Operation
  • VIN > VOUT Operation
  • Integrated Soft-Start
  • Current Mode Control with Internal Compensation
  • Burst Mode® Operation with 9μA IQ (LTC3526L-2)
  • Low Noise PWM Operation (LTC3526LB-2)
  • Internal Synchronous Rectifier
  • Logic Controlled Shutdown (IQ < 1μA)
  • Anti-Ring Control
  • Low Profile (2mm × 2mm × 0.75mm) 6-Lead DFN Package
Additional Details
show more Icon

The LTC3526L-2/LTC3526LB-2 are synchronous, fixed frequency step-up DC/DC converters with output disconnect. Synchronous rectification enables high efficiency in the low profile 2mm × 2mm DFN package. Battery life in single AA/AAA powered products is extended further with a 680mV start-up voltage and operation down to 500mV once started.

A switching frequency of 2MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count. The LTC3526L-2 features Burst Mode operation at light load conditions allowing it to maintain high efficiency over a wide range of load. The LTC3526LB-2 features fixed frequency operation for low noise applications. Anti-ring circuitry reduces EMI by damping the inductor in discontinuous mode. Additional features include a low shutdown current of under 1μA and thermal shutdown.

The LTC3526L-2/LTC3526LB-2 are housed in a 2mm × 2mm × 0.75mm DFN package.

Startup Voltage Frequency Burst Mode Notes
LTC3526 1V 1MHz Yes Not Recommended For New Designs
LTC3526B 1V 1MHz No Not Recommended For New Designs
LTC3526-2 1V 2MHz Yes Not Recommended For New Designs
LTC3526B-2 1V 2MHz No Not Recommended For New Designs
LTC3526L 0.85V 1MHz Yes
LTC3526LB 0.85V 1MHz No
LTC3526L-2 0.85V 2MHz Yes
LTC3526LB-2 0.85V 2MHz No

Applications

  • Medical Instruments
  • Noise Canceling Headphones
  • Wireless Mice
  • Bluetooth Headsets
Part Models 4
1ku List Price Starting From $2.24

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3526LBEDC-2#TRMPBF
  • HTML
  • HTML
LTC3526LBEDC-2#TRPBF
  • HTML
  • HTML
LTC3526LEDC-2#TRMPBF
  • HTML
  • HTML
LTC3526LEDC-2#TRPBF
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

reference details image

DC1053A-G

LTC3526LEDC-2 Demo Board | 2MHz, 0.8V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 100mA

zoom

DC1053A-G

LTC3526LEDC-2 Demo Board | 2MHz, 0.8V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 100mA

LTC3526LEDC-2 Demo Board | 2MHz, 0.8V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 100mA

Product Detail

Demonstration circuits 1053A-E through 1053A-H exercise the LTC3526L family of high efficiency synchronous boost converters, and are capable of operating with an input voltage range from 0.8V to 5.5V. The 2 × 2 mm DFN thermally enhanced package, high switching frequency (1MHz or 2MHz) and 550mA internal power switches provide a very tiny solution. The LTC3526L family also features output disconnect, and the input voltage can be greater or less than the output voltage. DC1053A-G features the LTC3526L-2 (Burst mode operation) and the DC1053A-H features the LTC3526LB-2 (Burst mode defeated). Both have a 2MHz switching frequency and use a 2.2µH inductor.

reference details image

DC1053A-H

LTC3526LBEDC-2 Demo Board | 2MHz, 0.8V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 100mA

zoom

DC1053A-H

LTC3526LBEDC-2 Demo Board | 2MHz, 0.8V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 100mA

LTC3526LBEDC-2 Demo Board | 2MHz, 0.8V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 100mA

Product Detail

Demonstration circuits 1053A-E through 1053A-H exercise the LTC3526L family of high efficiency synchronous boost converters, and are capable of operating with an input voltage range from 0.8V to 5.5V. The 2 × 2 mm DFN thermally enhanced package, high switching frequency (1MHz or 2MHz) and 550mA internal power switches provide a very tiny solution. The LTC3526L family also features output disconnect, and the input voltage can be greater or less than the output voltage. DC1053A-G features the LTC3526L-2 (Burst mode operation) and the DC1053A-H features the LTC3526LB-2 (Burst mode defeated). Both have a 2MHz switching frequency and use a 2.2µH inductor.

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.

Recently Viewed