TPS53314 Datasheet, PDF (1/31 Pages) Texas Instruments – 6-A Step-Down Regulator with Integrated Switcher

TPS53314
www.ti.com
6-A Step-Down Regulator with Integrated Switcher
Check for Samples: TPS53314
SLUSAK3 – MAY 2011
FEATURES
1
•2 Conversion Input Voltage Range: 3 V to 15 V
• VDD Input Voltage Range: 4.5 V to 25 V
• Output Voltage Range: 0.6 V to 5.5 V
• 5-V LDO Output
• Integrated Power MOSFETs with 6-A
Continuous Output Current
• <10-μA Shut Down Current
• Auto-Skip Eco-mode™ for Light-Load
Efficiency
• D-CAP™ Mode with Fast Transient Response
• Selectable Switching Frequency from 250 kHz
to 1 MHz with an External Resistor
• Built-in 1%, 0.6-V Reference
• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable
Internal Voltage Servo Soft-Start
• Pre-Charged Start-up Capability
• Integrated Boost Switch
• Adjustable Overcurrent Limit Via External
Resistor
• Overvoltage/Undervoltage, UVLO and
Over-Temperature Protection
• Support All Ceramic Output Capacitors
• Open Drain Power Good Indication
• 40-pin QFN Package with PowerPAD™
APPLICATIONS
• Server and Desktop Computers
• Notebook Computers
• Telecommunication Equipments
DESCRIPTION
TPS53314 is a D-CAP™ mode, 6-A synchronous
switcher with integrated MOSFETs. It is designed for
ease of use, low external component count, and
small package power systems.
This device features single-rail input support, one
20-mΩ and one 7.5-mΩ integrated MOSFET,
accurate 1%, 0.6 V Reference, and integrated boost
switch. A sample of competitive features include:
greater than 96% maximum efficiency, 3 V to 15 V
wide input voltage range, very low external
component count, D-CAP™ mode control for super
fast transient, selectable auto-skip and PWM
operation, internal soft-start control, adjustable
frequency, and no need for compensation.
The conversion input voltage ranges from 3 V to
15 V, the supply voltage range is from 4.5 V to 25 V,
and the output voltage range is from 0.6 V to 5.5 V.
The TPS53314 is available in a 5 mm × 7 mm 40-pin,
QFN package and is specified from –40°C to 85°C.
32 31 30 29 28 27 26 25 24 23 22 21
33 N/C
LL 20
VREG PGOOD _{34 N/C}
LL 19
35 TRIP
LL 18
EN
36 EN
37 VFB
TPS53314
LL 17
LL 16
38 RF
VIN 15
39 MODE
VIN 14
40 VDD
VIN 13
Pad
1 2 3 4 5 6 7 8 9 10 11 12
VDD
4.5 V to 25 V
VOUT
VIN
3 V to 15 V
UDG-11138
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.
Eco-mode, D-CAP, PowerPAD are trademarks 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