TPS84210 Datasheet, PDF (1/29 Pages) Texas Instruments – 2.95-V to 6-V Input, 2-A Synchronous Buck, Integrated Power Solution

TPS84210
www.ti.com
SLUSAN7A – SEPTEMBER 2011 – REVISED MARCH 2012
2.95-V to 6-V Input, 2-A Synchronous Buck, Integrated Power Solution
Check for Samples: TPS84210
FEATURES
1
•2 Complete Integrated Power Solution Allows
Small Footprint, Low-Profile Design
• Efficiencies Up To 96%
• Wide-Output Voltage Adjust
0.8 V to 3.6 V, with ±1% Reference Accuracy
• Adjustable Switching Frequency
(500 kHz to 2 MHz)
• Synchronizes to an External Clock
• Adjustable Slow-Start
• Output Voltage Sequencing / Tracking
• Power Good Output
• Programmable Undervoltage Lockout (UVLO)
• Output Overcurrent Protection
• Over Temperature Protection
• Operating Temperature Range: –40°C to 85°C
• Enhanced Thermal Performance: 12°C/W
• Meets EN55022 Class B Emissions
• For Design Help Including SwitcherPro™ visit
http://www.ti.com/TPS84210
DESCRIPTION
The TPS84210RKG is an easy-to-use integrated
power solution that combines a 2-A DC/DC converter
with power MOSFETs, an inductor, and passives into
a low profile, BQFN package. This total power
solution requires as few as 3 external components
and eliminates the loop compensation and magnetics
part selection process.
The 9×11×2.8 mm BQFN package is easy to solder
onto a printed circuit board and allows a compact
point-of-load design with greater than 90% efficiency
and excellent power dissipation with a thermal
impedance of 12°C/W junction to ambient. The
device delivers the full 2-A rated output current at
85°C ambient temperature without airflow.
The TPS84210 offers the flexibility and the feature-
set of a discrete point-of-load design and is ideal for
powering performance DSPs and FPGAs. Advanced
packaging technology afford a robust and reliable
power solution compatible with standard QFN
mounting and testing techniques.
SIMPLIFIED APPLICATION
APPLICATIONS
• Broadband & Communications Infrastructure
• Automated Test and Medical Equipment
• Compact PCI / PCI Express / PXI Express
• DSP and FPGA Point of Load Applications
• High Density Distributed Power Systems
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95
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85
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60
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V_IN = 5 V, V_OUT = 3.3 V, f_SW = 1.5 MHz
V_IN = 3.3 V, V_OUT = 1.8 V, f_SW = 1 MHz
0.5
1
1.5
2
Output Current (A)
G000
V_IN
C_IN
TPS84210
VIN PWRGD
VOUT
SENSE+
RT/CLK
INH/UVLO
SS/TR VADJ
STSEL
PGND AGND
V_OUT
C_OUT
R_SET
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.
SwitcherPro 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 © 2011–2012, Texas Instruments Incorporated