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TPS542941PWPR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS542941PWPR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page V = 1.5 V (50 mV/div) O2 Iout (2 A/div) t - Time - 100 s/div m Input Voltage PGND PGND C4 SW1 VIN1 VBST1 EN1 VFB2 VFB1 GND VREG5 PGND1 6 VIN2 VBST2 EN2 SW2 PG1 5 1 3 PG2 9 10 11 PGND2 2 4 7 13 12 TPS542941 HTSSOP16 14 8 15 16 PGND SGND SGND C11 VO1 C21 R11 R21 L11 C31 C32 L12 C12 VO2 C22 R12 R22 (PowerPAD) TPS542941 www.ti.com SLVSBI3 – JULY 2012 2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET Check for Samples: TPS542941 1 FEATURES APPLICATIONS 2 • D-CAP2™ Control Mode • Point-of-Load Regulation in Low Power Systems for Wide Range of Applications – Fast Transient Response – Digital TV Power Supply – No External Parts Required For Loop Compensation – Networking Home Terminal – Compatible with Ceramic Output – Digital Set Top Box (STB) Capacitors – DVD Player/Recorder • Wide Input Voltage Range : 4.5 V to 18 V – Gaming Consoles and Other • Output Voltage Range : 0.76V to 7V DESCRIPTION • Highly Efficient Integrated FETs Optimized for The TPS542941 is a dual, adaptive on-time D- Low Duty Cycle Applications CAP2™ mode synchronous buck converter. The – 150 m Ω (High Side) and 100 mΩ (Low Side) TPS542941 enables system designers to complete • High Initial Reference Accuracy the suite of various end equipment’s power bus regulators with a cost effective, low component count, • 2A CH1 / 3A CH2 Continuous Load Current and low standby current solution. The main control • Low-Side rDS(on) Loss-Less Current Sensing loops of the TPS542941 use the D-CAP2™ mode • Fixed Soft Start : 1.0ms control which provides a very fast transient response • Non-Sinking Pre-Biased Soft Start with no external compensation components. The adaptive on-time control supports seamless transition • Powergood between PWM mode at higher load conditions and • 700 kHz Switching Frequency Eco-mode™ operation at light loads. Eco-mode™ • Cycle-by-Cycle Over-Current Limit Control allows the TPS542941 to maintain high efficiency during lighter load conditions. The TPS542941 is able • OCL/UVLO/TSD Protections to adapt to both low equivalent series resistance • Hiccup Timer for Overload Protection (ESR) output capacitors such as POSCAP or SP- • Adaptive Gate Drivers with Integrated Boost CAP, and ultra-low ESR, ceramic capacitors. The PMOS Switch device provides convenient and efficient operation with input voltages from 4.5V to 18V. • OCP Constant Due To Thermally Compensated rDS(on) with 4000ppm/℃ ℃ The TPS542941 is available in a 4.4mm×5.0mm 16 pin TSSOP (PWP) package, and is specified for an • 16-Pin HTSSOP ambient temperature range from –40°C to 85°C. • Auto-Skip Eco-mode™ for High Efficiency at Light Load 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. 2 D-CAP2, Eco-mode, Eco-Mode are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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