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LTC1472

Features: ·Both VCC and VPP Switching in a Single Package·Built-In Current Limit and Thermal Shutdown·16-Pin (Narrow) SOIC Package·Inrush Current Limited (Drives 150mF Loads)·Continuous 12V Power Not Required·Extremely Low RDS(ON) NMOS Switches·Guaranteed 1A VCC Current and 120mA VPP Current·1mA Q...

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SeekIC No. : 004401621 Detail

LTC1472: Features: ·Both VCC and VPP Switching in a Single Package·Built-In Current Limit and Thermal Shutdown·16-Pin (Narrow) SOIC Package·Inrush Current Limited (Drives 150mF Loads)·Continuous 12V Power No...

LTC1472 Data Sheet

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Part Number:
LTC1472
Supply Ability:
5000

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

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Product Details

Description



Features:

·Both VCC and VPP Switching in a Single Package
·Built-In Current Limit and Thermal Shutdown
·16-Pin (Narrow) SOIC Package
·Inrush Current Limited (Drives 150mF Loads)
·Continuous 12V Power Not Required
·Extremely Low RDS(ON) NMOS Switches
·Guaranteed 1A VCC Current and 120mA VPP Current
·1mA Quiescent Current in Standby
·No External Components Required
·Compatible with Industry Standard Controllers
·Break-Before-Make Switching
·Controlled Rise and Fall Times


Application

·Notebook Computers
·Palmtop Computers
·Pen-Based Computers
·Handi-Terminals
·Bar-Code Readers


Pinout

Connection Diagram


Specifications

5VIN Supply Voltage ............................... 0.3V to 7V
3VIN Supply Voltage ............................... 0.3V to 7V
VPPIN Supply Voltage ......................... 0.3V to 13.2V
VCC(IN) Supply Voltage ............................. 0.3 to 7V
VDD(IN) Supply Voltage ........................... 0.3V to 7V
VPPOUT (OFF) ..................................... 0.3V to 13.2V
VCC(OUT) (OFF) ........................................ 0.3V to 7V
Enable Inputs .......................................... 0.3V to 7V
VPPOUT Short-Circuit Duration ..................... Indefinite
VCC(OUT) Short-Circuit Duration .................. Indefinite
Operating Temperature Range .............  0°C to 70°C
Junction Temperature.......................................  100°C
Storage Temperature Range .......... 65°C to 150°C
Lead Temperature (Soldering, 10 sec)............... 300°C


Description

The LTC®1472 switching matrix routes power to both the VCC and VPP power supply pins of the PCMCIA compatible card socket. The VCC output of the LTC1472 is switched between three operating states: OFF, 3.3V, and 5V. The VPP output is switched between four operating states: 0V, VCC, 12V, and Hi-Z. The output voltages are selected by two sets of digital inputs which are compatible with industry standard PC Card controllers (see Truth Tables).

The VCC output of the LTC1472 can supply up to 1A of current and the VPP output up to 120mA. Both switches have built-in SafeSlotTM current limiting and thermal shutdown to protect the card, socket and power supply against accidental short-circuit conditions.

The LTC1472 is designed to conserve power by automatically dropping to 1mA standby current when the two outputs are switched OFF. A shutdown pin is provided which holds the external 12V regulator in standby mode except when required for VPP power.

The LTC1472 is available in 16-pin SO.




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