Global Mixed-mode Technology Inc.
G570
Dual-Slot PCMCIA/CardBus Power Controller
Features
Description
ꢀFully Integrated VCC and Vpp Switching for Dual
The G570 PC Card power-interface switch provides an
integrated power-management solution for two 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 (IC). The circuit allows the distribution of 3.3V, 5V,
and/or 12V card power by means of the Serial inter-
face. The current-limiting feature eliminates the need
for fuses, which reduces component count and im-
proves reliability.
Slot PC CardTM Interface
ꢀ3-Lead Serial Interface Compatible With
CardBusTM Controllers
ꢀ3.3V Low Voltage Mode
ꢀMeets PC Card Standards
ꢀRESET for System Initialization of PC Cards
ꢀ12V Supply Can Be Disabled Except During
12V Flash Programming
ꢀShort Circuit and Thermal Protection
ꢀ28 Pin and 30 Pin SSOP
The G570 features a 3.3V low voltage mode that allows
for 3.3V switching without the need for 5V supply. This
facilitates low power system designs such as sleep
mode and pager mode where only 3.3V is available.
The G570 incorporates a reset function, selectable by
one of two inputs, to help alleviate system errors. The
reset function enables PC card initialization concurrent
with host platform initialization, allowing a system reset.
Reset is accomplished by grounding the VCC and VPP
(flash-memory programming voltage) outputs, which
discharges residual card voltage.
ꢀCompatible With 3.3V, 5V and 12V PC Cards
ꢀLow RDS(on) (225-mΩ 5V VCC Switch;
200 mΩ 3.3V VCC Switch)
ꢀBreak-Before-Make Switching
ꢀInternal power-On Reset
Application
ꢀNotebook PC
ꢀElectronic Dictionary
ꢀPersonal Digital Assistance
ꢀDigital still Camera
End equipment for the G570 includes notebook com-
puters, desktop computers, personal digital assistants
(PDAs), digital cameras and bar-code scanners.
Ordering Information
PART NUMBER TEMP. RANGE
PACKAGE
28 SSOP
G570S4
G570SA
-40°C to +85°C
-40°C to +85°C
30 SSOP
Pin Information
G570
G570
5V
1
2
3
4
5V
30
29
5V
DATA
1
2
5V
5V
28
27
26
25
24
NC
5V
DATA
28 NC
3
4
NC
NC
NC
CLOCK
LATCH
CLOCK
LATCH
RESET
12V
NC
NC
27
26
5
6
7
8
9
5
6
RESET
12V
25 NC
23 12V
12V
24
23
AVPP
22 BVPP
7
8
9
BVPP
BVCC
AVPP
AVCC
AVCC
AVCC
BVCC
21
AVCC
AVCC
AVCC
GND
NC
22
20
BVCC
21 BVCC
10
11
19 BVCC
10
11
20
BVCC
18
NC
GND 12
NC
19
18
17
16
12
13
14
17
OC
13
14
NC
OC
16
RESET
3.3V
3.3V
3.3V
15
3.3V
3.3V
RESET
3.3V 15
28Pin SSOP
30Pin SSOP
Ver 1.0
Nov 09, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
