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LTC3532

Features: Single Inductor Regulated Output with Input Voltages Above, Below or Equal to the Output Wide VIN Range: 2.4V to 5.5V VOUT Range: 2.4V to 5.25V Up to 500mA Peak Output Current Synchronous Rectifi cation: Up to 95% Effi ciency Manual or Programmable Automatic Burst Mode® Operation Ou...

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SeekIC No. : 004402273 Detail

LTC3532: Features: Single Inductor Regulated Output with Input Voltages Above, Below or Equal to the Output Wide VIN Range: 2.4V to 5.5V VOUT Range: 2.4V to 5.25V Up to 500mA Peak Output Current Synchronous...

LTC3532 Data Sheet

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Part Number:
LTC3532
Supply Ability:
5000

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

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Product Details

Description



Features:

Single Inductor
Regulated Output with Input Voltages Above, Below or Equal to the Output
Wide VIN Range: 2.4V to 5.5V
VOUT Range: 2.4V to 5.25V
Up to 500mA Peak Output Current
Synchronous Rectifi cation: Up to 95% Effi ciency
Manual or Programmable Automatic Burst Mode® Operation
Output Disconnect in Shutdown
Programmable Oscillator: 300kHz to 2MHz
Pin Compatible with LTC3440
Small Thermally Enhanced 10-Lead (3mm * 3mm) DFN and 10-Lead MSOP Packages


Application

Miniature Hard Disk Drive Power Supply
MP3 Players
Handheld Instruments
Digital Cameras
Handheld Terminals


Pinout

Connection Diagram


Specifications

BURST, VIN, VOUT, VC, FB ................................... 0.3V to 6V
RT ..................................................................... 0V to 5V
SHDN/SS ..................................................... 0.3V to 6V
SW1, SW2
DC ............................................................ 0.3V to 6V
Pulsed < 100ns ........................................ 0.3V to 7V
Maximum Junction Temperature (Note 4)............. 125
Storage Temperature Range
DD ..................................................... 65to 125
MSOP ................................................ 65 to 150
Lead Temperature (Soldering,10 sec)
MSOP ............................................................... 300


Description

The LTC®3532 is a high effi ciency, fi xed frequency, buckboost 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, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range.
The LTC3532 includes two 0.36 N-channel MOSFET switches and two 0.42 P-channel switches. Switching frequencies up to 2MHz are programmed with an external resistor. Quiescent current is only 35A in Burst Mode operation, maximizing battery life in portable applications.

Automatic Burst Mode operation of LTC3532 allows the user to program the load current for Burst Mode operation or to control it manually.

Other features include a 1A shutdown, soft-start control, thermal shutdown, and peak current limit. The LTC3532 is available in a low profi le (0.75mm) 10-lead (3mm * 3mm) DFN and 10-lead MSOP packages.




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