G576

Fully Integrated V_CC and VPP Switching for Dual-Slot PC Card ^TM Interface

Low r_DS(on) (180-m 5V V_CC Switch and 3.3V V_CC Switch)

3.3V Low-Voltage Mode

Meets PC Card Standards

12V Supply Can Be Disabled Except During  12V Flash Programming

Short Circuit and Thermal Protection

28 Pin SSOP

Compatible With 3.3V, 5V, and 12V PC Cards

Break-Before-Make Switching

Input voltage range for card power:
V_CC5...............................................................................................................-0.3V to 7V
V_CC3.............................................................................................................. -0.3V to 7V
V_CC12.............................................................................................................-0.3V to 14V
Logic input voltage.............................................................................................-0.3V to 7V
Output current (each card):I_{O (AVCC/BVCC)......................................................}internally limited
                       I_O(AVPP/BVPP) ...internally limited
Operating virtual junction temperature range, T_J. ........................-40°C to 150°C

Operating free-air temperature range,.T_A .....................-40°C to 85°C
Storage temperature range, T_STG .................................................-55°C to 150°C
Lead temperature 1.6 mm (1/16 inch) from case for  10 seconds..................260°C
Thermal resistance _JA

SSOP 28.....................................................................................125°C/W
Power dissipation P_D (T_A +25°C)
SSOP 28.......................................................................................800mW
ESD.............................................................................................Note1

The G576 PC Card power-interface switch provides an integrated power-management solution for dual-slot PC Cards. All of the discrete power MOSFETs, a logic section, current limiting, and thermal protection for PC Card control are combined on a single integrated cir-cuit. The circuit of G576 allows the distribution of 3.3V, 5V, and/or 12V card power, and is compatible with many PCMCIA controllers. The current-limiting feature eliminates the need for fuses, which reduces compo-nent count and improves reliability. Current-limit re-porting can help the user isolate a system fault to the PC Card.

The G576 features a 3.3V low voltage mode that al-lows for 3.3V switching without the need for 5V. Bias power can be derived from either the 3.3V or 5V inputs. This facilitates low-power system designs such as sleep mode and pager mode where only 3.3V is available.

End equipment for the G576 includes notebook com-puters, desktop computers, personal digital assistants (PDAs), digital cameras and bar-code scanners.