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LTC3530

Features: ` Regulated Output with Input Voltages Above, Below or Equal to the Output` 1.8V to 5.5V Input and 1.8V to 5.25V Output Range` 250mA Continuous Output Current from 1.8V VIN` 600mA Continuous/1A Peak Output Current from Li-Ion` Single Inductor` Synchronous Rectifi cation: Up to 96% ...

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SeekIC No. : 004402269 Detail

LTC3530: Features: ` Regulated Output with Input Voltages Above, Below or Equal to the Output` 1.8V to 5.5V Input and 1.8V to 5.25V Output Range` 250mA Continuous Output Current from 1.8V VIN` 600mA Continuo...

LTC3530 Data Sheet

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Part Number:
LTC3530
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Regulated Output with Input Voltages Above, Below or Equal to the Output
` 1.8V to 5.5V Input and 1.8V to 5.25V Output Range
` 250mA Continuous Output Current from 1.8V VIN
` 600mA Continuous/1A Peak Output Current from Li-Ion
` Single Inductor
` Synchronous Rectifi cation: Up to 96% Effi ciency
` Programmable Automatic Burst Mode® Operation
` Output Disconnect in Shutdown
` Pin Compatible with the LTC3440
` Programmable Frequency from 300kHz to 2MHz
` <1A Shutdown Current
` Small Thermally Enhanced 10-Lead (3mm * 3mm) DFN and 10-Lead MS Packages


Application

· MP3 Players
· Handheld Instruments
· Digital Cameras
· Smart Phones
· Portable GPS Units
· Miniature Hard Disk Drive Power


Pinout

Connection Diagram


Specifications

VIN, VOUT Voltage ..................................... 0.3V to 6V
SW1, SW2 Voltage
DC ............................................................ 0.3V to 6V
Pulsed < 100ns ........................................ 0.3V to 7V
VC, RT, FB, SHDN/SS, BURST Voltage ........ 0.3V to 6V
Operating Temperature (Note 2)............ 40 to 85
Maximum Junction Temperature (Note 4)........... 125
Storage Temperature Range ............... 65 to 150


Description

The LTC®3530 is a wide VIN range, highly effi cient, fi xed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, two-cell alkaline or NiMH applications where the output voltage is within the battery voltage range.

The LTC3530 is pin compatible with the LTC3440 buckboost DC/DC converter but adds programmable automatic Burst Mode operation and extends the VIN/VOUT range to 1.8V. Switching frequencies up to 2MHz are programmed with an external resistor. Automatic Burst Mode operation allows the user to program the load current threshold for Burst Mode operation using a single resistor from the BURST pin to GND. Other features include 1A shutdown, short circuit protection, programmable soft-start control, current limit and thermal shutdown.

The LTC3530 is available in a thermally enhanced 10-lead (3mm * 3mm) DFN or MSOP package.




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