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LX1745, LX1792, LX1810CDB

Table of contents:
Info of LX1745
Info of LX1792
Info of LX1810CDB

LX1745, LX1792, LX1810CDB Selling Leads, Datasheet

MFG:MSC Package Cooled:SSOP-20 D/C:6+

LX1745, LX1792, LX1810CDB Datasheet download

Five Points

Part Number: LX1745

MFG: MSC

Package Cooled: SSOP-20

D/C: 6+

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LX1745 General Description

The LX1745 is a compact high efficiency step-up boost regulator for driving white or color LEDs in LCD lighting applications while supplying the necessary LCD bias voltages with an\ additional two integrated boost converters.
Designed for maximum efficiency and featuring a psuedo-hysteretic PFM topology (that decreases output voltage ripple), the LX1745 minimizes system cost and condenses layout area making it ideal for PDA, smart-phone, and digital camera applications.

LX1745 Maximum Ratings

Supply Input Voltage ...........................................................................-0.3V to 7V
Feedback Input Voltage (VFBx) ...............................................-0.3V to VIN + 0.3V
Shutdown Input Voltage (VSHDN x) ..........................................-0.3V to VIN + 0.3V
PWM Input Amplitude (ADJx, BRT).....................................-0.3V to VIN + 0.3V
Analog Adjust Input Voltage (VADJx, VBRT)............................-0.3V to VIN + 0.3V
SRC Input Current ................................................................................ 500mARMS
Operating Temperature Range.........................................................-40°C to 85°C
Maximum Operating Junction Temperature ................................................ 150°C
Storage Temperature Range...........................................................-65°C to 150°C
Lead Temperature (Soldering 10 seconds) .................................................. 300°C

LX1745 Features

> 90% Maximum Efficiency
Low Quiescent Supply Current
Externally Programmable Peak Inductor Current Limit For Maximum Efficiency
Logic Controlled Shutdown
< 1µA Shutdown Current
Dynamic Output LED Current and Two LCD Bias Voltage Adjustments Via Analog Reference Or Direct PWM Input
20-Pin TSSOP Package

LX1745 Typical Application

Pagers
Smart Phones
PDAs
Handheld Computers
General LCD Bias Applications
LED Driver

LX1745 Connection Diagram

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