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TPS53126 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS53126 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page 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 TEST2 DRVH2 VBST2 EN2 PGND2 DRVL2 SW2 13 14 12 V5FILT 17 TEST1 6 2 4 PGND PGND SGND PGND SGND Input Voltage 4.5V to 24V R1 13kW R2 10kW R5 10kW R4 3.52kW VO1 1.8V/4A C2 0.1 F m Q1 FDS8878 C3 10 F m C1 22 F 4 m ´ C4 22 F 4 m ´ Q2 FDS8690 R3 3.3kW L1 SPM6530T 1.5 H m C7 4.7 F m C8 1 F m C9 10 F m R6 4.3kW Q4 FDS8690 C6 10 F m VO2 1.05V/4A C5 0.1 F m Q3 FDS8878 L2 SPM6530T 1.5 H m TPS53126 PW (TSSOP) DRVH2 VBST2 EN2 SW1 DRVL1 DRVH1 VBST1 EN1 PGND2 PGND1 DRVL2 SW2 Input Voltage PGND PGND PGND SGND 24 22 23 19 20 21 13 14 15 16 17 18 8 9 10 11 12 7 1 2 3 4 5 6 PGND SGND 4.5V to 24V C9 10 F m C4 22 F 4 m ´ C1 22 F 4 m ´ VO2 1.05V/4A C6 10 F m Q3 FDS8878 L2 SPM6530T 1.5 H m Q4 FDS8690 C5 0.1 F m R4 3.52kW R5 10kW R2 10kW R1 13kW R6 3.3kW C8 1 F m C7 4.7 F m R3 4.7kW VO1 1.8V/4A C3 10 F m Q1 FDS8878 L1 SPM6530T 1.5 H m Q2 FDS8690 C2 0.1 F m PowerPAD TPS53126 RGE (QFN) Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS53126 SLUS909B – MAY 2009 – REVISED AUGUST 2014 TPS53126 Dual Synchronous Step-down Controller For Low Voltage Power Rails 1 Features 3 Description The TPS53126 is a dual, adaptive on-time, D- 1 • D-CAP2™ Mode Control CAP2™ mode synchronous Buck controller. The – Fast Transient Response TPS53126 enables system designers to complete the – No External Parts Required For Loop suite of various end equipment's power bus Compensation regulators with a cost effective, low external component count, and low standby current solution. – Compatible with Ceramic Output Capacitors The main control loop for the TPS53126 uses the D- • High Initial Reference Accuracy (±1%) CAP2™ mode control which provides a very fast • Low Output Ripple transient response with no external components. The TPS53126 also has a proprietary circuit that enables • Wide Input Voltage Range: 4.5 V to 24 V the device to adapt to both low equivalent series • Output Voltage Range: 0.76 V to 5.5 V resistance (ESR) output capacitors, such as • Low-Side RDS(on) Loss-Less Current Sensing POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device provides convenient and • Adaptive Gate Drivers with Integrated Boost Diode efficient operation with input voltages from 4.5 V to 24 • Internal 1.2 ms Voltage-Servo Soft Start V and output voltages from 0.76 V to 5.5 V. • Pre-Biased Soft Start The TPS53126 is available in 4mm x 4mm 24 pin • Selectable Switching Frequency: 350 kHz / 700 VQFN (RGE) or 24 pin TSSOP (PW) packages and is kHz specified from –40°C to 85°C ambient temperature • Cycle-by-Cycle Over-Current Limiting Control range. • 30 mV to 300 mV OCP Threshold Voltage Device Information(1) • Thermally Compensated OCP by 4000 ppm/C° at PART NUMBER PACKAGE BODY SIZE (NOM) ITRIP TPS53126 VQFN (24) 4.00 mm x 4.00 mm TPS53126 TSSOP (24) 7.80 mm x 4.40 mm 2 Applications (1) For all available packages, see the orderable addendum at • Point-of-Load Regulation in Low Power Systems the end of the datasheet. for Wide Range of Applications – Digital TV Power Supply – Networking Home Terminal – Digital Set Top Box (STB) – DVD Player/Recorder – Gaming Consoles and Other 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. |
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