LT3433 Selling Leads, Price trend, LT3433 DataSheet download, circuit diagram from SeekIC.com

Features: · Automatic Step-Up and Step-Down Conversion· Uses a Single Inductor· Wide 4V to 60V Input Voltage Range· VOUT from 3.3V to 20V· Dual Internal 500mA Switches· 100mA No-Load Quiescent Current· Low Current Shutdown· ±1% Output Voltage Accuracy· 200kHz Operating Frequency· Boosted Supply Pi...

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SeekIC No. : 004401048 Detail

LT3433: Features: · Automatic Step-Up and Step-Down Conversion· Uses a Single Inductor· Wide 4V to 60V Input Voltage Range· VOUT from 3.3V to 20V· Dual Internal 500mA Switches· 100mA No-Load Quiescent Curre...

LT3433 Data Sheet

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Part Number:: LT3433
Supply Ability:: 5000

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Upload time: 2024/11/20

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IC PHOTOFLASH CAP CHARGER 10-DFN

Product Details

Description

Features:

· Automatic Step-Up and Step-Down Conversion
· Uses a Single Inductor
· Wide 4V to 60V Input Voltage Range
· V_OUT from 3.3V to 20V
· Dual Internal 500mA Switches
· 100mA No-Load Quiescent Current
· Low Current Shutdown
· ±1% Output Voltage Accuracy
· 200kHz Operating Frequency
· Boosted Supply Pin to Saturate High Side Switch
· Frequency Foldback Protection
· Current Limit Foldback Protection
· Current Limit Unaffected by Duty Cycle
· 16-lead Thermally Enhanced TSSOP Package

Application

· 12V Automotive Systems
· Wall Adapter Powered Systems
· Battery Power Voltage Buffering

Pinout

Connection Diagram

Specifications

Input Supply (V_IN) ..................................... 0.3V to 60V
Boosted Supply (V_BST) ............... 0.3V to VSW_H + 30V
(VBST(MAX) = 80V)
Internal Supply (V_BIAS) .............................. 0.3V to 30V
SW_H Switch Voltage ................................... 2V to 60V
SW_L Switch Voltage .................................. 0.3V to 30V
Feedback Voltage (V_FB) ............................... 0.3V to 5V
Operating Junction Temperature Range (Note 5)
LT3433E (Note 6) ............................ 40°C to 125°C
LT3433I ........................................... 40°C to 125°C
Storage Temperature Range ............... 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C

Description

The LT^®3433 is a 200kHz fixed-frequency current mode switching regulator that provides both step-up and stepdown
regulation using a single inductor. The IC operates over a 4V to 60V input voltage range making it suitable for use in various wide input voltage range applications such as automotive electronics that must withstand both load dump and cold crank conditions.

Internal control circuitry monitors system of LT3433 conditions and converts from single switch buck operation to dual switch bridged operation when required, seamlessly changing between step-down and step-up voltage conversion.

Optional Burst Mode^® operation reduces no-load quiescent current to 100mA and maintains high efficiencies with light loads.

Current limit foldback and frequency foldback help prevent inductor current runaway during start-up. Programmable soft-start helps prevent output overshoot at start-up.

The LT3433 is available in a 16-lead thermally enhanced TSSOP package.

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LT3433

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