Datasheet Linear Technology LTC3450

Manufacturer	Linear Technology
Series	LTC3450

Triple Output Power Supply for Small TFT-LCD Displays

Datasheets

PDF, 196 Kb, Revision: A, File uploaded: Sep 21, 2017

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Prices

Packaging

	LTC3450EUD#PBF	LTC3450EUD#TRPBF
N	1	2
Package	3x3 QFN-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing
Package Code	UD	UD
Package Index	05-08-1691	05-08-1691
Pin Count	16	16

Parametrics

Parameters / Models	LTC3450EUD#PBF	LTC3450EUD#TRPBF
Boost Switch Current, A	0.01	0.01
Demo Boards	DC553A	DC553A
Export Control	no	no
Features	Sequencing, Output Disconnect	Sequencing, Output Disconnect
Number of Outputs	3	3
Operating Temperature Range, °C	0 to 85	0 to 85
PowerPath	Linear PowerPath, Internal Ideal Diode	Linear PowerPath, Internal Ideal Diode
Vin Max, V	4	4
Vin Min, V	1.4	1.4

Eco Plan

	LTC3450EUD#PBF	LTC3450EUD#TRPBF
RoHS	Compliant	Compliant

Articles

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Triple Output LCD Power Supply Delivers 95% Efficiency from a Tiny 3mm x 3mm Package &mdash LT Journal
PDF, 158 Kb, File published: May 1, 2004
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DESIGN FEATURES Triple Output LCD Power Supply
Delivers 95% Efficiency from a
Tiny 3mm x 3mm Package by John Bazinet
Introduction
TodayвЂ™s handheld products pack more
functionality in less space while demanding improved battery life over
products of the previous generations.
The only way to achieve both is to improve power efficiency in the device
wherever possible. The color LCD display system is a good place to start,
since it is an increasingly popular, but
power hungry feature. The LTC3450
improves battery life and saves space
by delivering a 95% efficient color LCD
bias solution in a low profile (0.8mm
tall), 3mm Г— 3mm package.
Figure 1 shows a block diagram of
the LTC3450вЂ”a complete triple output
LCD power converterвЂ”in a low noise
5.1V, 10mA output synchronous step
up DC/DC converter. The charge pump based voltage tripler develops a 15V
output and a voltage inverter develops
вЂ“10V. The 15V and вЂ“10V outputs are
used in the LCD display for VGL and …

Model Line

Series: LTC3450 (2)

LTC3450EUD#PBF LTC3450EUD#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > LCD/CCD/OLED Bias
Power Management > PMIC & Multifunction > Multitopology DC/DC

EMS supplier

Slices

Microcontrollers