SS6532 500mA Dual Linear Regulator with VAUX Driver FEATURES DESCRIPTION Continuous 3.3V output from three inputs Complete power management solution VCC, VSBY regulator supplies 500mA output Built-in hysteresis when selecting input supplies Drive control signal for external VAUX switch Output can be forced higher than input (off-state) The SS6532 is a dual-input regulator with VAUX drive control capable of delivering 3.3V/500mA continuously. The output power is provided from three independent input voltage sources on a prioritized basis. Power is always taken in priority using the following order: VCC, VSBY, and VAUX. The SS6532 meets Intel's "Instantly Available" APPLICATIONS power requirements which follow the ACPI Desktop Computers PCI Adapter Cards with Wake-on-LAN Network Interface Cards (NICs) Multi-power Systems Systems with Standby Capabilities "Advanced Configuration and Power Interface" standards. When either VCC or VSBY is present, the device automatically enables the regulator and produces a stable 3.3V output. When only VAUX (3.3V) is present, the drive control output will turn on an external P-MOSFET switch from an auxiliary 3.3V supply VAUX to maintain VOUT. The IC also prevents excessive current from flowing back from VOUT to either input or ground when the output voltage is greater than the input voltage. All the control circuitry needed to provide a a smooth and automatic transition between all three supplies has been incorporated. This allows both VCC and VSBY to be dynamically switched without loss of output voltage. Rev.2.02 3/21/2004 www.SiliconStandard.com 1 of 9 SS6532 TYPICAL APPLICATION CIRCUIT VSBY 5V VCC 5V µ µ 3.3V/500mA µ SS6532 VAUX 3.3V Dual-input Regulator with Auxiliary Driver ORDERING INFORMATION PIN CONFIGURATION SS6532CXXX Packing type TR: Tape and reel TB: Tubes Package type N: PDIP-8 S: Small outline Example: SS6532CSTR $ in SO-8 package on tape and reel. (CN/PDIP-8 is only available in tubes) ABSOLUTE MAXIMUM RATINGS ; < "<°=>° "?°=3° Rev.2.02 3/21/2004 www.SiliconStandard.com 2 of 9 SS6532 ELECTRICAL CHARACTERISTICS PARAMETERS (VIN=5V, TA=25°C, unless otherwise specified) CONDITIONS - @@ - MIN. TYP. MAX. UNITS 3 <? 4 &- 1- A = &- 4 A = 1 A< = A A< = A & B '& @ & '& @ #$ 4 < < ? C < 4 < < ? C < 4 & A A 3 (10 AA (10 AA 3 3 D- AA AA µ µ & A A 3 # &- ; < µs 4 '(-$ '( Rev.2.02 3/21/2004 '(#'$ '(1'$ A3A www.SiliconStandard.com ? 3 of 9 SS6532 TYPICAL PERFORMANCE CHARACTERISTICS " ! Rev.2.02 3/21/2004 " # www.SiliconStandard.com 4 of 9 SS6532 TYPICAL PERFORMANCE CHARACTERISTICS (contd.) → → → → Rev.2.02 3/21/2004 www.SiliconStandard.com $% 5 of 9 SS6532 TYPICAL PERFORMANCE CHARACTERISTICS (contd.) ()°* & '( BLOCK DIAGRAM PIN DESCRIPTION 23E !F "-+$ $ ( ./ + 2 8%0""1 29- -+$ &+ && -&$ && -+- 24E "$$(./ ( & -&& 2<E ') " & * *$& &(1 -+- 2">ED2'"2( ( & 2E G " - ( % $ . / Rev.2.02 3/21/2004 www.SiliconStandard.com 6 of 9 SS6532 APPLICATIONS INFORMATION -"&& +- (- &&&+- % SS6532 $ :E 1' & - *- = . − / × = . − / × = >% * & +$ -(& &+ - + 3? − > 〈 = C<°5% > + & ' 0( + & && (- - &&&( -& && $ &1'3µ,&& &-- % -(& - -+"-- &&:-+& + &&&-& &&-+$$ -& & 3µ, && - && -- && &&&+&-&- -& :&$ 3µ, &-- -&&+-- - 0 &--& 0 $ & + D2' D2' - + + +$ -- ( - D2'-+3:& & The SS6532 is housed in a thermally &-&0D2'. >/ - - D$ 0 (+ &" The layout of the SS6532 is shown in fig.19. In , 43&; ?°5% SS6532- -+"--!---&-" &+ - -(& - $ $ Fig.19 The layout for the SS6532. Rev.2.02 3/21/2004 www.SiliconStandard.com 7 of 9 SS6532 !" #$#% °" , 4--( +; ?°5%&-" &+ µ µ µ ! " µ µ µ SS6532 SS6631 # SSM2301N , 43G&(&-$ µ ! µ SS6845 µ µ µ SS6532 , 44G5'&(&-$ Rev.2.02 3/21/2004 www.SiliconStandard.com 8 of 9 SS6532 PHYSICAL DIMENSIONS 8-LEAD PLASTIC SO (units: mm) F!1 2 H 3 3 ; 3 3 4 ! 3 3C 4 ' < > ) > < 3 4;.F/ # > ? 4 1 < 3 4; 8-LEAD PLASTIC DIP (units: mm) F!1 2 H 3 >3 I 4 4 C4 < C? + ? 4 ? ' C 3 3 3? ) ; ?4 > 4? )3 ? C ; 34 4 <.F/ ! I 3 C4 1 4 C4 >3 Information furnished by Silicon Standard Corporation is believed to be accurate and reliable. However, Silicon Standard Corporation makes no guarantee or warranty, express or implied, as to the reliability, accuracy, timeliness or completeness of such information and assumes no responsibility for its use, or for infringement of any patent or other intellectual property rights of third parties that may result from its use. Silicon Standard reserves the right to make changes as it deems necessary to any products described herein for any reason, including without limitation enhancement in reliability, functionality or design. No license is granted, whether expressly or by implication, in relation to the use of any products described herein or to the use of any information provided herein, under any patent or other intellectual property rights of Silicon Standard Corporation or any third parties. Rev.2.02 3/21/2004 www.SiliconStandard.com 9 of 9