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TPS563209DDCR Fiches technique(PDF) 10 Page - Texas Instruments

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No de pièce TPS563209DDCR
Description  4.5V to 17 V Input, 2-A, 3-A Synchronous Step-Down Voltage Regulator in 6pin SOT-23
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS563209DDCR Fiches technique(HTML) 10 Page - Texas Instruments

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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
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Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: TPS562209 TPS563209


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