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LTC3526LB

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% Effi ciency Output Disconnect 1MHz Fixed Frequency Operation VIN > VOUT Operation Integrated Soft-Start Current Mode Control with In...

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SeekIC No. : 004402265 Detail

LTC3526LB: 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% Effi ciency Output Disconnect 1MHz ...

LTC3526LB Data Sheet

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Part Number:
LTC3526LB
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:

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% Effi ciency
Output Disconnect
1MHz Fixed Frequency Operation
VIN > VOUT Operation
Integrated Soft-Start
Current Mode Control with Internal Compensation
Burst Mode® Operation with 9A IQ (LTC3526L)
Low Noise PWM Operation (LT3526LB)
Internal Synchronous Rectifi er
Logic Controlled Shutdown (IQ < 1A)
Anti-Ring Control
Low Profi le (2mm * 2mm * 0.75mm) DFN-6 Package


Application

Medical Instruments
Noise Canceling Headphones
Wireless Mice
Bluetooth Headsets


Pinout

Connection Diagram


Specifications

VIN Voltage .............................................. 0.3V to 6V
SW Voltage
DC ............................................................ 0.3V to 6V
Pulsed <100ns ......................................... 0.3V to 7V
SHDN, FB Voltage ..................................... 0.3V to 6V
VOUT ........................................................ 0.3V to 6V
Operating Temperature Range
(Notes 2, 5) ........................................... 40 to 85
Storage Temperature Range ............... 65 to 150


Description

The LTC®3526L/LTC3526LB are synchronous, fixed frequency step-up DC/DC converters with output disconnect. Synchronous rectifi cation enables high effi ciency in the low profi le 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 1MHz minimizes solution footprint by allowing the use of tiny, low profi le inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count.

The LTC3526L features Burst Mode operation at light load conditions allowing it to maintain high effi ciency over a wide range of load. The LTC3526LB features fi xed 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 1A and thermal shutdown.

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




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