Product Summary

The LTC1470ES8#TR is a PCMCIA Protected VCC Switch. The LTC1470ES8#TR switches the VCC pins of a Personal Computer Memory Card International Association (PCMCIA) card slot between three operating states: OFF, 3.3V and 5V. Two low RDS(ON) N-channel power MOSFETs are driven by a built-in charge pump which generates a voltage higher than the supply voltage to fully enhance each switch when selected by the input control logic. The LTC1470ES8#TR inputs are compatible with industry standard PCMCIA controllers. A built-in XOR ensures that both switches are never on at the same time. The applications of the LTC1470ES8#TR include Notebook Computers, Palmtop Computers, Pen-Based Computers, Handi-Terminals, PC Card Reader/Writers, 3.3V/5V Power Supply Switch.

Parametrics

LTC1470ES8#TR absolute maximum ratings: (1)3.3V Supply Voltage (Note 1): 7V; (2)5V Supply Voltage (Note1): 7V; (3)Enable Input Voltage: 7V to (GND -0.3V); (4)Output Voltage (OFF) (Note 1): 7V to (GND -0.3V); (5)Output Short-Circuit Duration: Indefinite; (6)Operating Temperature: 0℃ to 70℃; (7)Junction Temperature: 100℃; (8)Storage Temperature Range: -65℃ to 150℃; (9)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC1470ES8#TR features: (1)Single 3.3V/5V Switch in 8-Pin SO Package; (2)Dual 3.3V/5V Switch in 16-Pin SO Package; (3)Built-In Current Limit and Thermal Shutdown; (4)Built-In Charge Pumps (No 12V Required); (5)Extremely Low RDS(ON) MOSFET Switches; (6)Output Current Capability: 1A; (7)Inrush Current Limited (Drives 150mF Loads); (8)Quiescent Current in Standby: 1mA; (9)No Parasitic Body Diodes; (10)Built-In XOR Function Eliminates “Glue” Logic; (11)Break-Before-Make Switching; (12)Controlled Rise and Fall Times.

Diagrams

LTC1470ES8#TR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC1470ES8#TR
LTC1470ES8#TR


IC SW PCMCIA SGL 3.3/5V 8-SOIC

Data Sheet

0-2500: $1.93
LTC1470ES8#TRPBF
LTC1470ES8#TRPBF


IC SWTCH PCMCIA3.3V/5V SNGL8SOIC

Data Sheet

0-2500: $1.93