TPS51463 Datasheet, PDF (1/27 Pages) Texas Instruments – 3.3-V/5-V Input, D-CAP+Mode Synchronous Step-Down Integrated FETs Converter

TPS51463
www.ti.com
SLUSAX2 – FEBRUARY 2012
3.3-V/5-V Input, D-CAP+™ Mode Synchronous Step-Down Integrated FETs Converter
With 2-Bit VID
Check for Samples: TPS51463
FEATURES
1
•23 Integrated FETs Converter w/TI Proprietary
D-CAP+™ Mode Architecture
• Minimum External Parts Count
• Support all MLCC Output Capacitor and
SP/POSCAP
• Auto Skip Mode
• Selectable 700-kHz and 1-MHz Frequency
• Small 4 mm × 4 mm, 24-Pin, QFN Package
APPLICATIONS
• Low-Voltage Applications Stepping Down from
5-V or 3.3-V Rail
• Notebook/Desktop Computers
• Intel^® Chief River Platform ULV CPU System
Agent
DESCRIPTION
The TPS51463 is a fully integrated synchronous buck
regulator employing D-CAP+™. It is used for up to 5-
V step-down where system size is at its premium,
performance and optimized BOM are must-haves.
The TPS51463 fully supports the Intel^® Chief River
platform, a ULV/CPU system agent application with
integrated 2-bit VID function.
The TPS51463 also features two switching frequency
settings (700 kHz and 1 MHz), skip mode, pre-bias
startup, programmable external capacitor soft-start
time/voltage transition time, output discharge, internal
VBST Switch, 2-V reference (±1%), power good and
enable.
The TPS51463 is available in a 4 mm × 4 mm, 24-
pin, QFN package (Green RoHs compliant and Pb
free) and is specified from -40°C to 85°C.
+5V
ENABLE
VID0
VID1
PGOOD
VIN
18 17 16 15 14 13
19 PGND
20 PGND
21 PGND
22 VIN
23 VIN
24 VIN
TPS51463
BST 12
SW 11
SW 10
SW 9
SW 8
SW 7
123456
VCCSA
VCCSASNS
UDG-12017
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
D-CAP+ is a trademark of Texas Instruments.
2
Intel is a registered trademark of Intel Corporation.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated