TPS65580PWPR Datasheet, PDF (1/28 Pages) Texas Instruments – 4.5V to 18V Input 1.5A, 2.5A, 1.5A Triple Synchronous Step-Down Converter

TPS65580
www.ti.com
SLVSC29 – SEPTEMBER 2013
4.5V to 18V Input 1.5A, 2.5A, 1.5A Triple Synchronous Step-Down Converter
Check for Samples: TPS65580
FEATURES
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•2 Advanced D-CAP2™ Control Mode
– Fast Transient Response
– No External Parts Required For Loop
Compensation
– Compatible with Ceramic Output
Capacitors
• Wide Input Voltage Range : 4.5 V to 18 V
• Output Voltage Range : 0.76 V to 7.0 V
• Highly Efficient Integrated FETs Optimized for
Low Duty Cycle Applications
– 160 mΩ (High Side) and 130 mΩ (Low Side)
for 2.5A
– 250mΩ (High Side) and 230mΩ (Low Side)
for 1.5A
• High Initial Reference Accuracy
• Low-Side R_DS(on) Loss-Less Current Sensing
• Fixed 1.2 ms Soft Start
• Non-Sinking Pre-Biased Soft Start
• 700 kHz Switching Frequency
• Cycle-by-Cycle Over-Current Limiting Control
• OCL, OVP, UVP, UVLO, TSD Protections
• Hiccup Timer for Over Load Protection
• PowerGood
• Adaptive Gate Drivers with Integrated Boost
PMOS Switch
• OCP Constant Due To Thermally Compensated
rds(on) with 4000ppm/℃
• 20-Pin HTSSOP
APPLICATIONS
• Point-of-Load Regulation in Low Power
Systems for Wide Range of Applications
– Digital TV Power Supply
– Networking Home Terminal
– Digital Set Top Box (STB)
– DVD Player/Recorder
– Gaming Consoles and Other
DESCRIPTION
The TPS65580 is a triple, advanced D-CAP2™ mode
synchronous buck converter. The TPS65580 enables
system designers to complete the suite of various
end equipment’s power bus regulators with a cost
effective, low component count, and low standby
current solution. The main control loops of the
TPS65580 uses the advanced D-CAP2™ mode
control which provides a fast transient response with
no external compensation components. The
TPS65580 is able to adapt to both low equivalent
series resistance (ESR) output capacitors such as
POSCAP or SP-CAP, and ultra-low ESR, ceramic
capacitors. The device provides convenient and
efficient operation with input voltages from 4.5V to
18V.
The TPS65580 is available in 4.4mm × 6.5mm 20 pin
TSSOP (PWP) package, and is specified from –40°C
to 85°C ambient temperature range.
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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, PowerPAD are trademarks of Texas Instruments.
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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