Diodes AUR9713 Manuel d'utilisateur

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Data Sheet
1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713
Mar. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
1
General Description
The AUR9713 is a high efficiency step-down
DC-DC voltage converter. The chip operation is
optimized using constant frequency, peak-current
mode architecture with built-in synchronous power
MOS switchers and internal compensators to reduce
external part counts. It is automatically switching
between the normal PWM mode and LDO mode to
offer improved system power efficiency covering a
wide range of loading conditions.
The oscillator and timing capacitors are all built-in
providing an internal switching frequency of
1.5MHz that allows the use only small surface mount
inductors and capacitors for portable product
implementations. Additional features included
integrated Soft Start (SS), Under Voltage Lock OUT
(UVLO).
The device is available in adjustable output voltage
versions ranging from 1V to 3.3V, and is able to
deliver up to 1A.
The AUR9713 is available in TSOT-23-5 package.
Features
• High Efficiency Buck Power Converter
• Low Quiescent Current
• Output Current: 1A
Adjustable Output Voltage from 1V to 3.3V
• Wide Operating Voltage Range: 2.5V to 5.5V
Built-in Power Switches for Synchronous
Rectification with High Efficiency
• Feedback Voltage: 600mV
1.5MHz Constant Frequency Operation
Automatic PWM/LDO Mode Switching Control
• Thermal Shutdown Protection
Low Drop-out Operation at 100% Duty Cycle
No Schottky Diode Required
Applications
Mobile Phone, Digital Camera and MP3 Player
Headset, Radio and Other Hand-held Instrument
Post DC-DC Voltage Regulation
PDA and Notebook Computer
Figure 1. Package Type of AUR9713
TSOT-23-5
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Résumé du contenu

Page 1 -

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 2

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 3 - Ordering Information

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 4

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 5

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 6

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Page 7

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 8

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 9

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 10 - OUTINOUT

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 11 - NONDSPONDSSW

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 12 - +×= ;

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 13 - GAUGE PLANE

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

Page 14

Data Sheet 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER AUR9713 Mar. 2012 Rev. 1.

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