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TPS563209DDCR Fiches technique(PDF) 10 Page - Texas Instruments |
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TPS563209DDCR Fiches technique(HTML) 10 Page - Texas Instruments |
10 / 28 page 2 SW XCON PWM Control Logic + + UVP OVP 3 VIN Ton One-Shot 6 VBST + 4 VFB OCL + + Soft Start 5 EN HS LS 1 GND SS Voltage Reference Ref Hiccup VUVP VOVP OCL threshold Regulator UVLO VREG5 VREG5 TSD TPS562209, TPS563209 SLVSCM5 – SEPTEMBER 2014 www.ti.com 8 Detailed Description 8.1 Overview The TPS562209 and TPS563209 are 2-A and 3-A synchronous step-down converters, respectively. The proprietary D-CAP2™ mode control supports low ESR output capacitors such as specialty polymer capacitors and multi-layer ceramic capacitors without complex external compensation circuits. The fast transient response of D-CAP2™ mode control can reduce the output capacitance required to meet a specific level of performance. 8.2 Functional Block Diagram Figure 19. TPS56x209 8.3 Feature Description 8.3.1 The Adaptive On-Time Control and PWM Operation The main control loop of the TPS56x209 are adaptive on-time pulse width modulation (PWM) controller that supports a proprietary D-CAP2™ mode control. The D-CAP2™ mode control combines adaptive on-time control with an internal compensation circuit for pseudo-fixed frequency and low external component count configuration with both low ESR and ceramic output capacitors. It is stable even with virtually no ripple at the output. 10 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: TPS562209 TPS563209 |
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