G570 Datasheet, PDF (1/14 Pages) Global Mixed-mode Technology Inc – Dual-Slot PCMCIA/CardBus Power Controller

Global Mixed-mode Technology Inc.
G570
Dual-Slot PCMCIA/CardBus Power Controller
Features
„Fully Integrated V_CC and V_pp Switching for Dual
Slot PC Card^TM Interface
„3-Lead Serial Interface Compatible With
CardBus^TM 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
„Compatible With 3.3V, 5V and 12V PC Cards
„Low R_DS(on) (225-mΩ 5V V_CC Switch;
200 mΩ 3.3V V_CC Switch)
„Break-Before-Make Switching
„Internal power-On Reset
Application
„Notebook PC
„Electronic Dictionary
„Personal Digital Assistance
„Digital still Camera
Description
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.
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 V_CC and V_PP
(flash-memory programming voltage) outputs, which
discharges residual card voltage.
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
G570S4
-40°C to +85°C
G570SA
-40°C to +85°C
PACKAGE
28 SSOP
30 SSOP
Pin Information
G570
5V 1
DATA 2
CLOCK 3
LATCH ⁴
RESET 5
12V 6
AVPP 7
AVCC ⁸
AVCC 9
AVCC 10
GND ¹¹
NC ¹²
RESET ¹³
3.3V 14
28Pin SSOP
Ver 1.0
Nov 09, 2000
28 5V
27 5V
26 NC
25 _NC
24 NC
23 12V
22 BVPP
21 BVCC
20 BVCC
19 BVCC
18 _NC
17 _OC
16 _3.3V
15 3.3V
5V 1
5V ²
DATA 3
CLOCK ⁴
LATCH 5
RESET 6
12V 7
AVPP ⁸
AVCC ⁹
AVCC 10
AVCC ¹¹
GND 12
NC 13
RESET ¹⁴
3.3V 15
G570
30 5V
29 NC
28 NC
27 NC
26 NC
25 NC
24 12V
23 _BVPP
22 BVCC
21 BVCC
20 BVCC
19 NC
18 OC
17 3.3V
16 3.3V
30Pin SSOP
TEL: [phone]
http://www.gmt.com.tw
1