TPS2220B Datasheet, PDF (1/27 Pages) Texas Instruments – POWER-INTERFACE SWITCHES FOR SERIAL PCMCIA CONTROLLERS

TPS2220B
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POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
SLVS554 – JANUARY 2005
FEATURES
• Single-Slot Switch: TPS2220B
• Fast Current Limit Response Time
• Fully Integrated VCC and VPP Switching for
3.3 V, 5 V, and 12 V
• Meets Current PC Card™ Standards
• V_pp Output Selection Independent of V_CC
• 12-V and 5-V Supplies Can Be Disabled
• TTL-Logic Compatible Inputs
• Short-Circuit and Thermal Protection
• 24-Pin HTSSOP and 24-Pin SSOP
• 140-µA (Typical) Quiescent Current from
3.3-V Input
• Break-Before-Make Switching
• Power-On Reset
• -40°C to 85°C Operating Ambient Temperature
Range
APPLICATIONS
• Notebook and Desktop Computers
• Bar Code Scanners
• Digital Cameras
• Set-Top Boxes
• PDAs
DESCRIPTION
The TPS2220B power-interface switch provides an integrated power-management solution for single Card
sockets. The device allows the controlled distribution of 3.3 V, 5 V, and 12 V to one card slot. The current-limiting
and thermal-protection features eliminate the need for fuses. Current-limit reporting helps the user isolate a
system fault. The switch r_DS(on) and current-limit values have been set for the peak and average current
requirements stated in the PC Card specification, and optimized for cost.
Like the TPS2220A this device supports independent VPP/VCC switching. The TPS2220B is pin compatible with
the TPA2220A execept for pin 20 of the TPS2220B which has no connection.
AVAILABLE OPTIONS
T_A
-40°C to 85°C
PACKAGED DEVICE
PLASTIC SMALL OUTLINE
(DB-24) ⁽¹⁾
PowerPAD™
PLASTIC SMALL OUTLINE
(PWP-24) ⁽¹⁾
TPS2220BDB
TPS2220BPWP
(1) The DB and PWP packages are also available taped and reeled. Add R suffix to device type (e.g., TPS2220BPWPR) for taped and
reeled.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PC Card is a trademark of PCMCIA (Personal Computer Memory Card International Association).
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005, Texas Instruments Incorporated