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RC5061 数据表(PDF) 1 Page - Fairchild Semiconductor

部件名 RC5061
功能描述  High Performance Programmable Synchronous DC-DC Controller for Multi-Voltage Platforms
Download  18 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

RC5061 数据表(HTML) 1 Page - Fairchild Semiconductor

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www.fairchildsemi.com
Pentium is a registered trademark of Intel Corporation.
REV. 1.0.0 7/6/00
Features
• Programmable output for Vcore from 1.3V to 3.5V using
an integrated 5-bit DAC
• Controls adjustable linears for Vtt (1.5V), and Vclock
(2.5V)
• Meets VRM specification with as few as 5 capacitors
• Meets 1.550V +40/-70mV over initial tolerance,
temperature and transients
• Remote sense
• Active Droop (Voltage Positioning)
• Drives N-Channel MOSFETs
• Overcurrent protection using MOSFET sensing
• 85% efficiency typical at full load
• Integrated Power Good and Enable/Soft Start functions
• 20 pin SOIC package
Applications
• Power supply for Pentium® III Camino Platform
• Power supply for Pentium III Whitney Platform
• VRM for Pentium III processor
• Programmable multi-output power supply
Description
The RC5061 is a synchronous mode DC-DC controller IC
which provides a highly accurate, programmable set of output
voltages for multi-voltage platforms such as the Intel Camino,
and provides a complete solution for the Intel Whitney and other
high-performance processors. The RC5061 features remote
voltage sensing, independently adjustable current limit, and
Active Droop for optimal converter transient response. The
RC5061 uses a 5-bit D/A converter to program the output
voltage from 1.3V to 3.5V. The RC5061 uses a high level of
integration to deliver load currents in excess of 16A from a 5V
Block Diagram
VID3
VID2
VID1
13
VID0
GNDP
19
18
2
15
20
1
14
-
+
-
+
OSC
1.24V
Reference
Digital
Control
Power
Good
5-Bit
DAC
VID4
87 6 5 4
+5V
+12V
PWRGD
-
+
ENABLE/SS
VCC
GNDA
3
LODRV
HIDRV
VCCP
17
VCCA
+5V
16
-
REF
REF
PWRGD,
OCL
PWRGD,
OCL
+3.3V
+1.5V
10
9
+2.5V
12
11
OCL
-
+
VCCP
RS
+
-
+
RC5061
High Performance Programmable Synchronous
DC-DC Controller for Multi-Voltage Platforms


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