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MIC2556BM, MIC2557, MIC25578N

Table of contents:
Info of MIC2556BM
Info of MIC2557
Info of MIC25578N

MIC2556BM, MIC2557, MIC25578N Selling Leads, Datasheet

MFG:1895 Package Cooled:SOP D/C:New

MIC2556BM, MIC2557, MIC25578N Datasheet download

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Part Number: MIC2556BM

MFG: 1895

Package Cooled: SOP

D/C: New

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MIC2557 General Description

The MIC2557 switches the four voltages required by PCMCIA (Personal Computer Memory Card International Association) card V_PP Pins. The MIC2557 provides selectable 0V, 3.3V, 5.0V, or 12.0V (±5%) from the system power supply to V_PP1 or V_PP2. Output voltage is selected by two digital inputs. Output current ranges up to 120mA. Four control states, V_PP, V_CC, high impedance, and active logic low are available. An auxiliary control input determines whether the high impedance (open) state or low logic state is asserted.

In either quiescent mode or full operation, the device draws very little current, typically less than 1A.

The MIC2557 is available in an 8-pin SOIC and an 8-pin plastic DIP.

MIC2557 Maximum Ratings

Power Dissipation, TAMBIENT 25°C SOIC........ 800 mW
Derating Factors (To Ambient) SOIC ...........4 mW/°C
Storage Temperature .............65°C to +150°C
Operating Temperature (Die)................ 125°C
Operating Temperature (Ambient) ........40°C to +85°C
Lead Temperature (5 sec).................. 260°C
Supply Voltage, V_PP IN .....................15V
V_CC ...............................7.5V
V_{DD.....................................} 7.5V
Logic Input Voltages ..................0.3V toV_DD
Output Current (each Output)
V_{PP OUT} = 12V........................ 600mA
V_{PP OUT} = V_CC ........................250mA

MIC2557 Features

• Complete PCMCIA V_PPSwitch Matrix in a Single IC
• No External Components Required
• Digital Selection of 0V, V_CC, V_PP, or High Imped ance Output
• No V_PP OUT Overshoot or Switching Transients
• Break-Before-Make Switching
• Low Power Consumption
• 120mA V_PP (12V) Output Current
• Optional Active Source Clamp for Zero Volt Condition
• 3.3V or 5V Supply Operation
• 8-Pin SOIC Package

MIC2557 Typical Application

• PCMCIA V_PP Pin Voltage Switch
• Power Supply Management
• Power Analog Switch

MIC2557 Connection Diagram

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