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TPS65263RHBR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS65263RHBR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 46 page 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.01 0.10 1.00 Output Load (A) C001 LX1 FB1 LX2 FB2 LX3 FB3 PVINx VIN ENx SSx SDA SCL PGND AGND Vin Vout1 Vout3 TPS65263 Vout2 DVCC SDA SCL VOUT3 VOUT2 VOUT1 Vout1 Vout2 Vout3 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS65263 SLVSCN0A – JUNE 2014 – REVISED SEPTEMBER 2014 TPS65263, 4.5- to 18-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous Step-Down Converter With I2C Controlled Dynamic Voltage Scaling 1 Features 3 Description The TPS65263 incorporates triple synchronous buck 1 • Operating Input Voltage Range 4.5- to 18-V converters with 4.5- to 18-V wide input voltage range Continuous Output Current 3 A/2 A/2 A that encompassed most intermediate bus voltage • I2C Controlled 7-Bits VID Programmable Output operating off 5-, 9-, 12-, or 15-V power bus or battery. Voltage from 0.68 to 1.95 V With 10-mV Voltage The converter, with constant frequency peak current Step for Each Buck mode, is designed to simplify its application while giving designers options to optimize the system • I2C Controlled VID Voltage Transition Slew Rate according to targeted applications. The device • I2C Read Back Power Good Status, Overcurrent operates in 600 kHz with 180° out-of-phase between Warning for Each Buck buck1 and buck2, buck3 (buck2 and buck3 run in • I2C Read Back Die Temperature Warning phase). • I2C Compatible Interface With Standard Mode The initial startup voltage of each buck can be set (100 kHz) and Fast Mode (400 kHz) with external feedback resistors. The output voltage • Feedback Reference Voltage 0.6 V ±1% of each buck can be dynamically scaled from 0.68 to 1.95 V in 10-mV step with I2C controlled 7 bits VID. • Fixed 600-kHz Frequency The VID voltage transition slew rate is programmable • Dedicated Enable and Soft Start Pins for Each with 3-bits control through I2C bus to optimize Buck overshoot/undershoot during VID voltage transition. • Thermal Overloading Protection Each buck in TPS65263 can be I2C controlled for enabling/disabling output voltage, setting the pulse 2 Applications skipping mode (PSM) or force continuous current mode (FCC) at light load condition and reading the • DTV LCD Panel power good status, overcurrent warning and die • Set-Top Boxes temperature warning. • Home Gateway and Access Point Networks The TPS65263 features overvoltage, overcurrent, • Surveillance short-circuit, and overtemperature protection. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS65263 VQFN (32) 5.00 mm × 5.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Efficiency vs Output Load 4 Typical Application A. VIN = 12 V; VOUT = 3.3 V 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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