TPS51462_17 Datasheet, PDF (1/28 Pages) Texas Instruments – 3.3-V/5-V Input, D-CAP+ Mode Synchronous Step-Down Integrated FETs Converter With 2-Bit VID

TPS51462
www.ti.com
SLUSAQ1 – DECEMBER 2011
3.3-V/5-V Input, D-CAP+™ Mode Synchronous Step-Down Integrated FETs Converter
With 2-Bit VID
Check for Samples: TPS51462
FEATURES
1
•2 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
DESCRIPTION
The TPS51462 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.
This device fully supports Intel system agent
applications with integrated 2-bit VID function.
The TPS51462 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 TPS51462 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
TPS51462
BST 12
SW 11
SW 10
SW 9
SW 8
SW 7
123456
VCCSA
VCCSASNS
UDG-11143
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
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 © 2011, Texas Instruments Incorporated