500-mA 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER
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TPS62300, TPS62301, TPS62302
QFN-10 CSP-8
TPS62303, TPS62304, TPS62305,
TPS62311, TPS62313, TPS62315, TPS...
Description
www.ti.com
TPS62300, TPS62301, TPS62302
QFN-10 CSP-8
TPS62303, TPS62304, TPS62305,
TPS62311, TPS62313, TPS62315, TPS62320, TPS62321
SLVS528E – JULY 2004 – REVISED NOVEMBER 2007
500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER
IN CHIP SCALE PACKAGING
FEATURES
1
234 Up to 93% Efficiency at 3-MHz Operation Up to 500-mA Output Current at VI = 2.7 V 3-MHz Fixed Frequency Operation Best in Class Load and Line Transient Complete 1-mm Component Profile Solution -0.5% / +1.3% PWM DC Voltage Accuracy Over
Temperature
35-ns Minimum On-Time Power-Save Mode Operation at Light Load
Currents
Fixed and Adjustable Output Voltage Only 86-µA Quiescent Current 100% Duty Cycle for Lowest Dropout Synchronizable On the Fly to External
Clock Signal
Integrated Active Power-Down Sequencing (TPS6232x only)
Available in a 10-Pin QFN (3 x 3 mm), 8-Pin NanoFree™, and NanoStar™ (CSP) Packaging
APPLICATIONS
Cell Phones, Smart-Phones WLAN and Bluetooth™ Applications Micro DC-DC Converter Modules PDAs, Pocket PCs USB-Based DSL Modems Digital Cameras
2.7 V . . 6 V VI C1
4.7 µF
TPS62303YZD
A2 VIN
SW B1
B2 EN
VOUT D1
L1 1 µH
C1 MODE/SYNC ADJ C2
A1 GND
FB D2
VO C2 1.8 V/500 mA
4.7 µF
Figure 1. Smallest Solution Size Application (Fixed Output Voltage)
DESCRIPTION
The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to ...
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