TPS84250_1212 Datasheet, PDF (1/29 Pages) Texas Instruments – 7-V to 50-V Input, 2.5-A Step-Down, Integrated Power Solution

TPS84250
www.ti.com
SLVSAR6 – AUGUST 2012
7-V to 50-V Input, 2.5-A Step-Down, Integrated Power Solution
Check for Samples: TPS84250
FEATURES
1
• Complete Integrated Power Solution Allows
Small Footprint, Low-Profile Design
• Wide Input Voltage Range from 7 V to 50 V
• Output Adjustable from 2.5 V to 15 V
• 65-V Surge Capability
• Efficiencies Up To 96%
• Adjustable Switching Frequency
(300 kHz to 1 MHz)
• Synchronizes to an External Clock
• Adjustable Slow-Start
• Output Voltage Sequencing and Tracking
• Power Good Output
• Programmable Undervoltage Lockout (UVLO)
• Output Overcurrent Protection
• Over Temperature Protection
• Pre-bias Output Start-up
• Operating Temperature Range: –40°C to 85°C
• Enhanced Thermal Performance: 14°C/W
• Meets EN55022 Class B Emissions
• For Design Help visit
http://www.ti.com/TPS84250
APPLICATIONS
• Industrial and Motor Controls
• Automated Test Equipment
• Medical and Imaging Equipment
• High Density Power Systems
100
95
DESCRIPTION
The TPS84250 is an easy-to-use integrated power
solution that combines a 2.5-A DC/DC converter with
an inductor and passives into a low profile, QFN
package. This total power solution allows as few as
five external components and eliminates the loop
compensation and magnetics part selection process.
The small 9 mm × 11 mm × 2.8 mm, QFN 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 capability.
The TPS84250 offers the flexibility and the feature-
set of a discrete point-of-load design and is ideal for
powering a wide range of ICs and systems.
Advanced packaging technology affords a robust and
reliable power solution compatible with standard QFN
mounting and testing techniques.
SIMPLIFIED APPLICATION
TPS84250
V_IN
VIN
VOUT
V_OUT
C_IN
INH/UVLO
R_SET ^COUT
VADJ
PWRGD
RT/CLK
SS/TR
STSEL
AGND PGND
90
85
80
75
70
0
V_IN = 24 V, V_OUT = 15 V, f_SW = 1 MHz
V_IN = 24 V, V_OUT = 12 V, f_SW = 800 kHz
0.5
1
1.5
2
Output Current (A)
2.5
G000
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.
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