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TPS54283PWPG4 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54283PWPG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 52 page 1 FEATURES CONTENTS DESCRIPTION APPLICATIONS 1 2 3 4 14 13 12 11 PVDD2 BOOT2 SW2 BP PVDD1 BOOT1 SW1 GND TPS54283 5 6 7 10 9 8 SEQ ILIM2 FB2 EN1 EN2 FB1 OUTPUT1 OUTPUT2 V IN UDG-07006 GND TPS54283,, TPS54286 SLUS749C – JULY 2007 – REVISED OCTOBER 2007 www.ti.com 2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET 23 • 4.5-V to 28-V Input Range Device Ratings 2 • Output Voltage Range 0.8 V to 90% of Input Electrical Characteristics 3 Voltage Device Information 9 • Output Current Up to 2 A Application Information 12 • Two Fixed Switching Frequency Versions: Design Examples 32 – TPS54283: 300 kHz – TPS54286: 600 kHz Additional References 44 • Two Selectable Levels of Overcurrent Protection (Output 2) • 0.8-V 1.5% Voltage Reference TPS54283 and TPS54286 are dual output • 2.1-ms Internal Soft Start non-synchronous buck converters capable of supporting 2-A output applications that operate from a • Dual PWM Outputs 180° Out-of-Phase 4.5-V to 28-V input supply voltage, and require output • Ratiometric or Sequential Startup Modes voltages between 0.8 V and 90% of the input voltage. Selectable by a Single Pin With internally-determined operating frequency, soft • 100-mΩ Internal High-Side MOSFETs start time, and control loop compensation, these • Current Mode Control converters provide many features with a minimum of • Internal Compensation (See Page 16) external components. Channel 1 overcurrent protection is set at 3 A, while Channel 2 overcurrent • Pulse-by-Pulse Overcurrent Protection protection level is selected by connecting a pin to • Thermal Shutdown Protection at 148°C ground, to BP, or left floating. The setting levels are • 14-Pin PowerPAD™ HTSSOP package used to allow for scaling of external components for applications not needing the full load capability of both outputs. • Set Top Box The outputs may be enabled independently, or may • Digital TV be configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may • Power for DSP also be powered from different sources. • Consumer Electronics 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 PowerPAD is a trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007, 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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