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LTC3202

Features: `Low Noise Constant Frequency Operation` 25% Less Input Current Than Doubler Charge Pump` High Output Current: Up To 125mA` Small Application Circuit` Regulated Output Voltage or Current` Automatic Soft-Start` VIN Range: 2.7V to 4.5V` No Inductors` 1.5MHz Switching Frequency` ICC < 1A...

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SeekIC No. : 004402171 Detail

LTC3202: Features: `Low Noise Constant Frequency Operation` 25% Less Input Current Than Doubler Charge Pump` High Output Current: Up To 125mA` Small Application Circuit` Regulated Output Voltage or Current` ...

LTC3202 Data Sheet

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Part Number:
LTC3202
Supply Ability:
5000

Price Break

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

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Upload time: 2024/12/21

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Product Details

Description



Features:

`Low Noise Constant Frequency Operation
` 25% Less Input Current Than Doubler Charge Pump
` High Output Current: Up To 125mA
` Small Application Circuit
` Regulated Output Voltage or Current
` Automatic Soft-Start
` VIN Range: 2.7V to 4.5V
` No Inductors
` 1.5MHz Switching Frequency
` ICC < 1A in Shutdown
` Available in 10-Pin MSOP and 3mm * 3mm DFN Packages


Application

· White LED Backlighting
· Programmable Boost Current Source


Pinout

Connection Diagram


Specifications

VIN, VOUT to GND ........................................... 0.3V to 6V
D0, D1 ................................................0.3V to VIN + 0.3V
VOUT Short-Circuit Duration ............................... Indefinite
IOUT (Note 2).......................................................... 150mA
Operating Temperature Range (Note 3) ......40 to 85
Storage Temperature Range .....................65 to 150
Lead Temperature (Soldering, 10 sec)..................... 300


Description

The LTC®3202 is a low noise, constant frequency charge pump DC/DC converter that uses fractional conversion to increase efficiency in white LED applications. The part can be used to produce a regulated voltage or current of up to 125mA from a 2.7V to 4.5V input. Low external parts count (two flying capacitors and two small bypass capacitors at VIN and VOUT) make the LTC3202 ideally suited for small, battery-powered applications.

An internal 2-bit DAC allows LED current to be adjusted for LED brightness control. The LTC3202 also has thermal shutdown protection and can survive a continuous shortcircuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to less than1A.

The LTC3202 is available in the 10-pin MSOP and 3mm* 3mm DFN packages.




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