TPS51363 Datasheet, PDF (1/32 Pages) Texas Instruments – 22-V Input, 8-A or 10-A Converter With Integrated FET

TPS51363
www.ti.com
SLUSBB5A – FEBRUARY 2013 – REVISED JUNE 2013
22-V Input, 8-A or 10-A Converter
With Integrated FET
Check for Samples: TPS51363
FEATURES
1
•2 Input Voltage Range: 3 V to 22 V
• Output Voltage Range: 0.6 V to 2 V
• 8-A or 10-A Integrated FET Converter
(see Table 1)
• Fewest External Components
• Soft-Start Time Programmable by External
Capacitor
• Switching Frequency: 400 kHz and 800 kHz
• D-CAP2™ Architecture to Enable POSCAP and
All MLCC Output Capacitor Usage
• Integrated and Temperature Compensated
Low-Side On-Resistance Sensing for Accurate
OCL Protection
• Powergood Output
OCL, OVP, UVP and UVLO Protections
• Thermal Shutdown (non-latch)
• Output Discharge Function
• Integrated Boost MOSFET Switch
• 28-Pin, 3.5-mm × 4.5-mm, RVE, QFN Package
with 0.4-mm Pitch and 1-mm Height
DESCRIPTION
The TPS51363 is a high-voltage input, synchronous
converter with integrated FET, based on D-CAP2™
control topology, which enables fast transient
response and supports both POSCAP and all MLCC
output capacitors. TI proprietary FET technology
combined with TI leading-edge package technology
provides the highest density solution for single-output
power rail such as VCCIO and VDDQ for DDR
notebook memory, or any point-of-load (POL) in wide
application.
The feature set includes switching frequency of 400
kHz and 800 kHz. Programmable soft-start time with
an external capacitor. auto skip, pre-bias startup,
integrated bootstrap switch, power good, enable and
a full suite of fault protection schemes, including
OCL, UVP, OVP, 5-V UVLO and thermal shutdown.
It is packaged in 3.5 mm × 4.5 mm, 0.4-mm pitch, 28-
pin QFN (RVE), and specified from -10°C to 85°C.
Table 1. Current Ratings
FREQUENCY SETTING
800 kHz
400 kHz
MAX I_DC
8A
10 A
APPLICATIONS
• Notebook Computers (VCCIO)
• Memory Rails (DDR VDDQ)
SIMPLIFIED APPLICATION
VSNS
GSNS
EN
PGOOD
23 22 21
GSNS VSNS SLEW
24 REFIN2
20 19 18
TRIP GND V5
17 16 15
VIN VIN VIN
PGND 14
25 REFIN
PGND 13
26 VREF
TPS51363
PGND 12
27 NU
PGND 11
28 EN
PGOOD NU MODE NC BST
1
2345
PGND 10
SW SW SW SW
6789
VIN
7.4 V
to
20 V
VOUT
1.05 V
UDG-12205
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-CAP2 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 © 2013, Texas Instruments Incorporated