SSC SS6532CNTB

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.
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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°
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SS6532
ELECTRICAL CHARACTERISTICS
PARAMETERS
(VIN=5V, TA=25°C, unless otherwise specified)
CONDITIONS
-
@@ -
MIN.
TYP.
MAX. UNITS
3
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4
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1-
A = &-
4
A = 1
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B
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4
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AA
3
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AA AA µ µ &
A
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3
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;
<
µs 4
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Rev.2.02 3/21/2004
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SS6532
TYPICAL PERFORMANCE CHARACTERISTICS
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!
Rev.2.02 3/21/2004
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SS6532
TYPICAL PERFORMANCE CHARACTERISTICS (contd.)
→
→
→
→
Rev.2.02 3/21/2004
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SS6532
TYPICAL PERFORMANCE CHARACTERISTICS (contd.)
()°*
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BLOCK DIAGRAM
PIN DESCRIPTION
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Rev.2.02 3/21/2004
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SS6532
APPLICATIONS INFORMATION
-"&& +- (- &&&+-
% SS6532 $
:E 1' & - *-
= . − / × = . − / × = >%
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The SS6532 is housed in a thermally
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The layout of the SS6532 is shown in fig.19. In
,
43&;
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SS6532-
-+"--!---&-"
&+
- -(&
- $ $ Fig.19 The layout for the SS6532.
Rev.2.02 3/21/2004
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SS6532
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µ
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µ
µ
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SS6532
SS6631
#
SSM2301N
,
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µ
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µ
SS6845
µ
µ
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SS6532
,
44G5'&(&-$
Rev.2.02 3/21/2004
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SS6532
PHYSICAL DIMENSIONS
8-LEAD PLASTIC SO (units: mm)
F!1
2
H
3
3
;
3
3
4
!
3
3C
4
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8-LEAD PLASTIC DIP (units: mm)
F!1
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3
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4
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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.
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