MIC2564A1BTS Micrel Semiconductor, MIC2564A1BTS Datasheet

MIC2564A1BTS

Manufacturer Part Number

MIC2564A1BTS

Description

SSOP-24

Manufacturer

Micrel Semiconductor

Datasheets

1.MIC2564A1BTS.pdf (14 pages)

2.MIC2564A1BTS.pdf (13 pages)

Specifications of MIC2564A1BTS

Date_code

03+

Current page: 1 of 14
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General Description

The MIC2564A is dual-slot PC Card PCMCIA (Personal Com-

puter Memory Card International Association) and CardBus

power controller. It is a sophisticated power switching matrix

that controls V

MIC2564A is used in conjunction with a serial-data output logic

controller using the standard three-wire serial control data

format.

When connected to 3.3V, 5V, and 12V system power supplies,

the MIC2564A can switch its V

5.0V, and high-impedance states and V

3.3V, 5V, 12V, and high-impedance states. The V

will supply a minimum of 1A current to the socket and the V

outputs will supply a minimum of 120mA to the socket. Voltage

rise and fall times are well controlled. The MIC2564A also

features an efficient standby (sleep) mode at 0.3mA typical

quiescent current.

12V and 5V supplies are not required for MIC2564A operation

making it possible to omit one or both supplies when they are not

needed by the system. An internal charge pump supplies the

internal bias voltages required for high-performance switching.

The MIC2564A is protected by overtemperature shutdown, and

protects itself and the system with current limiting and cross-

conduction lockout.

The MIC2564A is available in 24-pin SSOP, 24-pin TSSOP,

and an environmentally friendly (lead-free) 24-pin TSSOP.

All support documentation can be found on Micrel’s web site

at www.micrel.com.

Typical Application

UL Recognized Component

March 2004

MIC2564A

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

between logic controller and

PCMCIA cards not shown.

Address and data lines

and V

Logic Controller

or Zoom Video

Dual-Slot

System Reset

PCMCIA,

CardBus,

voltages to two PC Card slots. The

outputs between 0V, 3.3V,

PCMCIA Card Power Management Application

outputs between 0V,

RST#

Serial

Control

Bus

(

OPTIONAL

12V

System Power Supply

MIC2564A

Controller

)

Power

outputs

GND

3.3V

CC3

A V

B V

A V

B V

Features

• Standard 3-wire serial control data input

• Controls two card slots from one surface mount device

• High-efficiency, low-resistance switches

• 12V supply optional (not required by MIC2564A)

• Current limit and overtemperature shutdown

• Ultra-low 1mA-typical standby power consumption

• Cross-conduction lockout (no switching transients)

• Break-before-make switching

• 1A minimum V

• Independent V

• 120mA minimum V

• Lead-free 24-pin surface-mount TSSOP package

• UL recognized, file #179633

Applications

• PC Card and CardBus power control

• Zoom Video port power control

• Wireless communications

• Bar code data collection systems

• Docking stations (portable and desktop)

• Power supply management

(

Dual Serial PCMCIA/CardBus Power Controller

OPTIONAL

CC5

OUT

)

Motherboard

Slot A

Slot B

MIC2564A

output per slot

and V

PP1

PP2

PP1

PP2

output current per slot

voltage output (MIC2564A-1)

PCMCIA

Card

M0250-031104

Micrel

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