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LTC1551LCS8-2.5, LTC1551LCS8-4.1, LTC1552

LTC1551LCS8-2.5, LTC1551LCS8-4.1, LTC1552 Selling Leads, Datasheet

MFG:Linear Technology  Category:Integrated Circuits (ICs)  Package Cooled:2944+06  D/C:06+

LTC1551LCS8-4.1 Picture

LTC1551LCS8-2.5, LTC1551LCS8-4.1, LTC1552 Datasheet download

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Part Number: LTC1551LCS8-4.1

Category: Integrated Circuits (ICs)

MFG: Linear Technology

Package Cooled: 2944+06

D/C: 06+

Description: IC VOLT INV REGLTD SW-CAP 8-SOIC

 

 
 
 
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  • Vendor: Linear Pack: SOP Qty: 1099 Note: .  Adddate: 2024-03-29
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About LTC0157

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Datasheet: LTC0157

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  • Vendor: Linear Pack: SOP Qty: 1099 Note: .  Adddate: 2024-03-29
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  • Wahkitsing (HK) Trading Co.   China
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About LTC1551LCS8-4.1

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Datasheet: LTC1551LCS8-4.1

File Size: 277871 KB

Manufacturer: LINER [Linear Technology]

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  • Vendor: Linear Pack: SOP Qty: 1099 Note: .  Adddate: 2024-03-29
  • Inquire Now
  • Wahkitsing (HK) Trading Co.   China
    Contact: Ms.sharonyang   MSN:sharon_wks@hotmail.com
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    Fax: 86-755-83298768
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About LTC1552

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Datasheet: LTC1552

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Manufacturer: Linear

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LTC1551LCS8-4.1 Parameters

Technical/Catalog InformationLTC1551LCS8-4.1
VendorLinear Technology
CategoryIntegrated Circuits (ICs)
TypeSwitched Capacitor (Charge Pump), Inverting
Number of Outputs1
Voltage - Input2.7 ~ 5.5 V
Voltage - Output-4.1V
Current - Output20mA
Power - Output-
Package / Case8-SOIC (3.9mm Width)
PackagingBulk
Internal Switch(s)Yes
SynchronousNo
Rds (On)-
Operating Temperature0°C ~ 70°C
Frequency - Switching900kHz
Drawing Number161; 05-08-1610; S, S8; 8, 14, 16
Lead Free StatusContains Lead
RoHS StatusRoHS Non-Compliant
Other Names LTC1551LCS8 4 1
LTC1551LCS841

LTC1552 General Description

The LTC®1552 is a high power, high efficiency switching regulator controller optimized for 5V or 12V input to 2.1V - 3.5V output applications. It features digitally programmable output voltage, a precision internal reference and an internal feedback system that can provide output regulation of ±1% over temperature, load current and line voltage shifts. The LTC1552 uses a synchronous switching architecture with two external N-channel output devices, eliminating the need for a high power, high cost P-channel device. Additionally, it senses the output current across the on resistance of the upper N-channel FET, providing an adjustable current limit without an external low value sense resistor.

The LTC1552 free runs at 300kHz, and can be synchronized to a faster external clock if desired. It includes all the inputs and outputs required to implement a power supply conforming to the Intel Pentium Pro Processor VRM 8.0 DC/DC Converter Specification.

LTC1552 Maximum Ratings

Supply Voltage
    VCC ........................................................................ 7V
    PVCC ...................................................................... 20V
Input Voltage
    IFB ......................................................................... – 0.3V to PVCC + 0.3V
    IMAX ......................................................................–0.3V to 13V
    All Other Inputs .................................................... –0.3V to VCC + 0.3V
Digital Output Voltage ..............................................–0.3V to 13V
Operating Temperature Range ................................. 0°C to 70°C
Storage Temperature Range .................................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................... 300°C

LTC1552 Features

■Digitally Programmable 2.1V to 3.5V Fixed Output Voltage with 100mV Steps
Provides All Features Required by the Intel Pentium® Pro Processor VRM 8.0 DC/DC Converter Specification
Flags for Power Good, Over Temperature and Over Voltage Fault
Output Current Exceeds 14A from a 5V or 12V Supply
Dual N-Channel MOSFET Synchronous Drive
Excellent Output Regulation: ±1% Over Line, Load and Temperature Variations
High Efficiency: Over 95% Possible
Adjustable Current Limit Without External Sense Resistors
Fast Transient Response
Available in SSOP-20 Package

LTC1552 Typical Application

■Power Supply for Pentium Pro, SPARC, ALPHA and PA-RISC Microprocessors
High Power 5V or 12V/2.1V - 3.5V Regulators

LTC1552 Connection Diagram

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