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LT3470

Features: Low Quiescent Current: 26µA at 12VIN to 3.3VOUTIntegrated Boost and Catch DiodesInput Range: 4V to 40VLow Output Ripple: <10mV<1µA in Shutdown ModeOutput Voltage: 1.25V to 16V200mA Output CurrentHysteretic Mode Control Low Ripple Burst Mode® Operation at Light Load...

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SeekIC No. : 004401075 Detail

LT3470: Features: Low Quiescent Current: 26µA at 12VIN to 3.3VOUTIntegrated Boost and Catch DiodesInput Range: 4V to 40VLow Output Ripple: <10mV<1µA in Shutdown ModeOutput Voltage: 1.25V t...

LT3470 Data Sheet

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Part Number:
LT3470
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:

Low Quiescent Current: 26µA at 12VIN to 3.3VOUT
Integrated Boost and Catch Diodes
Input Range: 4V to 40V
Low Output Ripple: <10mV
<1µA in Shutdown Mode
Output Voltage: 1.25V to 16V
200mA Output Current
Hysteretic Mode Control
    Low Ripple Burst Mode® Operation at Light Loads
    Continuous Operation at Higher Loads
Solution Size as Small as 50mm2
Low Profile (1mm) ThinSOT Package


Application

Automotive Battery Regulation
Power for Portable Products
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation


Pinout

Connection Diagram


Specifications

VIN, SHDN Voltage .................................................. 40V
BOOST Pin Voltage ................................................. 47V
BOOST Pin Above SW Pin ...................................... 25V
FB Voltage ................................................................ 5V
BIAS Voltage ............................................................ 25V
SW Voltage ................................................................VIN
Maximum Junction Temperature ......................... 125°C
Operating Temperature Range (Note 2) .. 40°C to 85°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C


Description

The LT®3470 is a micropower step-down DC/DC converter that integrates a 300mA power switch, catch diode and boost diode into a low profile (1mm) ThinSOTTM package. The LT3470 combines Burst Mode and continuous operation to allow the use of tiny inductor and capacitors while providing a low ripple output to loads of up to 200mA.

With its wide input range of 4V to 40V, the LT3470 can regulate a wide variety of power sources, from 2-cell Li-Ion batteries to unregulated wall transformers and leadacid batteries. Quiescent current in regulation is just 26µA in a typical application while a zero current shutdown mode disconnects the load from the input source, simplifying power management in battery-powered systems. Fast current limiting and hysteretic control protects the LT3470 and external components against shorted outputs, even at 40V input.




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