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LTC3450

Features: . Generates Three Voltages: 5.1V at 10mA 5V, 10, or 15V at 500µA 10V or 15V at 500µA. Better than 90% Efficiency. Low Output Ripple: Less than 5mVP-P. Complete 1mm Component Profile Solution. Controlled Power-Up Sequence: AVDD/VGL/VGH. All Outputs Disconnected and Actively Di...

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SeekIC No. : 004402250 Detail

LTC3450: Features: . Generates Three Voltages: 5.1V at 10mA 5V, 10, or 15V at 500µA 10V or 15V at 500µA. Better than 90% Efficiency. Low Output Ripple: Less than 5mVP-P. Complete 1mm Component Pr...

LTC3450 Data Sheet

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Part Number:
LTC3450
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/25

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Product Details

Description



Features:

. Generates Three Voltages:
    5.1V at 10mA
    5V, 10, or 15V at 500µA
    10V or 15V at 500µA
. Better than 90% Efficiency
. Low Output Ripple: Less than 5mVP-P
. Complete 1mm Component Profile Solution
. Controlled Power-Up Sequence: AVDD/VGL/VGH
. All Outputs Disconnected and Actively Discharged in
   Shutdown
. Low Noise Fixed Frequency Operation
. Frequency Reduction Input for High Efficiency in
  Blank Mode
. Ultralow Quiescent Current: 75µA (Typ) in Scan Mode
. Available in a 3mm * 3mm 16-Pin QFN Package


Application

Cellular Handsets with Color Display
Handheld Instruments
PDA


Pinout

Connection Diagram


Specifications

VIN, SW..........................................................0.3 to 7V
SHDN, MODE...................................................0.3 to 7V
VOUT..............................................................0.3 to 7V
VNEG..........................................................17V to 0.3V
Operating Temperature Range
LTC3450E (Note 4)..................................40°C to 85°C
Storage Temperature Range.................65°C to 125°C

 


Description

The LTC®3450 is a complete power converter solution forsmall thin film transistor (TFT) liquid crystal display (LCD)panels. The device operates from a single Lithium-Ion cell,2- to 3-cell alkaline input or any voltage source between1.5V and 4.6V.

The synchronous boost converter generates a low noise,high efficiency 5.1V, 10mA supply. Internal charge pumpsare used to generate 10V, 15V, and 5V, 10V or 15V.Output sequencing is controlled internally to insure properinitialization of the LCD panel.

A master shutdown input reduces quiescent current to<2µA and quickly discharges each output for rapid turn offof the LCD panel. The LTC3450 is offered in a low profile(0.8mm max), 3mm * 3mm 16-pin QFN package, mini-mizing the solution profile and footprint.




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