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TPS53129 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS53129 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 31 page TPS53129PW TSSOP24 SW1 DRVL1 DRVH1 VBST1 EN1 VFB2 VO2 VO1 VFB1 GND TRIP2 VREG5 TRIP1 PGND1 3 24 8 21 22 23 15 9 16 18 19 20 5 7 1 10 11 VIN SS2 DRVH2 VBST2 EN2 PGND2 DRVL2 SW2 13 14 12 V5FILT 17 SS1 6 2 4 PGND PGND SGND PGND SGND Input Voltage 4.5V to 24V C9 10uF VO1 1.8V/4A C1 22uFx2 C3 10uF Q1 FDS8878 L1 SPM6530T 1.5uH Q2 FDS8690 C2 0.1uF R 4.3k R6 4.7k C 1uF C7 4.7uF L2 SPM6530T 1.5uH VO2 1.05V/4A C6 10uF Q3 FDS8878 Q4 FDS8690 C5 0.1uF R2 10k R1 13.5k R5 10k R4 3.63k C11 4700pF C10 4700pF C4 22uFx2 TPS53129 RGE (QFN ) DRVH2 VBST2 EN2 SW1 DRVL1 DRVH1 VBST1 EN1 PGND2 PGND1 DRVL2 SW2 C3 10uF VO2 1.05V/4A C5 0.1uF Input Voltage PGND C4 22uFx2 10uF C6 10uF L1 PGND Q3 FDS8878 R4 3.63k R5 10k PGND SGND R6 4.7k 24 22 23 19 20 21 13 14 15 16 17 18 8 9 10 11 12 7 1 2 3 4 5 6 Power PAD PGND SGND 4.5V to 24V VO1 1.8V/4A Q4 FDS8690 Q1 FDS8878 C9 Q2 FDS8690 L2 SPM6530T 1.5uH L1 SPM6530T 1.5uH C2 0.1uF R 4.3k R2 10k C 1uF C7 4.7uF R1 13.5k C1 22uFx2 C11 4700pF C10 4700pF Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS53129 SLVSAE6A – JULY 2010 – REVISED AUGUST 2014 TPS53129 Dual Synchronous Step-Down Controller with Auto-Skip Eco-mode™ for Low Voltage Power Rails 1 Features 3 Description The TPS53129 is a dual, adaptive on-time D-CAP2™ 1 • D-CAP2™ Mode Control mode synchronous buck controller. The TPS53129 – Fast Transient Response enables system designers to complete the suite of – No External Parts Required for Loop various end equipment’s power bus regulators with Compensation cost effective, low component count, and low standby current solution. The main control loop for the – Compatible With Ceramic Output Capacitors TPS53129 uses the D-CAP2™ mode control which • High Initial Reference Accuracy (±1%) provides a very fast transient response with no • Low Output Ripple external components. The TPS53129 also has a circuit that enables the device to adapt to both low • Wide Input Voltage Range: 4.5 V to 24 V equivalent series resistance (ESR) output capacitors • Output Voltage Range: 0.76 V to 5.5 V such as POSCAP or SP-CAP, and ultra-low ESR, • Low-Side RDS(ON) Loss-Less Current Sensing ceramic capacitors. The fixed frequency emulated adaptive on-time control supports seamless operation • Adaptive Gate Drivers with Integrated Boost Diode between PWM mode at heavy load condition and • Adjustable Soft Start reduced frequency operation at light load for high • Non-Sinking Pre-Biased Soft Start efficiency down to milliampere range.The device • 700-kHz Switching Frequency provides convenient and efficient operation with input voltages from 4.5 V to 24 V and output voltages from • Cycle-by-Cycle Over-Current Limiting Control 0.76 V to 5.5 V. • 30-mV to 300-mV OCP Threshold Voltage The TPS53129 is available in 4-mm x 4-mm 24-pin • Thermally Compensated OCP by 4000 ppm/°C at QFN (RGE) or 24-pin TSSOP (PW) packages, and is ITRIP specified from -40°C to 85°C ambient temperature • Auto-Skip Eco-mode™ for High Efficiency at Light range. Load Device Information(1) 2 Applications PART NUMBER PACKAGE BODY SIZE (NOM) • Point-of-Load Regulation in Low Power Systems VQFN (24) 4.00 mm x 4.00 mm TPS53129 for Wide Range of Applications TSSOP (24) 4.40 mm x 7.80 mm – Digital TV Power Supply (1) For all available packages, see the orderable addendum at the end of the datasheet. – Networking Home Terminal – Digital Set-Top Box (STB) – DVD Player/Recorder – Gaming Consoles 4 Simplified Schematics 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Numéro de pièce similaire - TPS53129_15 |
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Description similaire - TPS53129_15 |
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