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PDF AP3595 Data sheet ( Hoja de datos )
| Número de pieza | AP3595 | |
| Descripción | Dual Phase Synchronous Rectified Buck Controller | |
| Fabricantes | BCD | |
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Data Sheet
Dual Phase Synchronous Rectified Buck Controller
AP3595
General Description
The AP3595 is a compact dual phase synchronous
rectified buck controller specifically designed to
deliver high quality output voltage. This device
operates at adjustable operation frequency and is
capable of delivering up to 60A output current.
This controller integrates internal MOSFET drivers
that support 12V+12V bootstrapped voltage for high
efficiency power conversion. The bootstrap diode is
built-in to simplify the circuit design and minimize
external part count.
The AP3595 features configurable gate driving
voltage for maximum efficiency and optimal
performance. The built-in bootstrap diode simplifies
the circuit design and reduces external part count and
PCB space. The output voltage is precisely regulated
to the reference input that is dynamically adjustable
by external voltage divider.
Other features include adjustable soft start, adjustable
operation frequency, and quick response to step-load
transient. With afore-mentioned functions, the IC
provides customers a compact, high efficiency,
well-protected and cost-effective solution.
This IC is available in QFN-4×4-24 package.
Features
• Operate with Single Supply Voltage
• Simple Single Loop Voltage Mode Control
• 12V+12V Bootstrapped Drivers with Internal
Bootstrap Diode
• Adjustable Over Current Protection by DCR
Current Sensing
• Adjustable Current Balancing by RDS(ON) Current
Sensing
• Adjustable Operation Frequency from 50kHz to
1MHz Per Phase
• External Compensation
• Dynamic Output Voltage Adjustment
• Adjustable Soft Start
• QFN-4×4-24 Package
• RoHS Compliant and 100% Lead (Pb)-free
Applications
• Middle-High End GPU Core Power
• High End Desktop PC Memory Core Power
• Low Output Voltage, High Power Density
DC-DC Converters
• Voltage Regulator Modules
May 2013 Rev. 1. 1
QFN-4×4-24
Figure 1. Package Type of AP3595
BCD Semiconductor Manufacturing Limited
1
Free Datasheet http://www.datasheetlist.com/
1 page  
Dual Phase Synchronous Rectified Buck Controller
Functional Block Diagram
Data Sheet
AP3595
Figure 3. Functional Block Diagram of AP3595
Ordering Information
AP3595
-
Circuit Type
Package
FN: QFN-4×4-24
G1: Green
TR: Tape & Reel
Package
QFN-4×4-24
Temperature
Range
-40 to 85C
Part Number
AP3595FNTR-G1
Marking ID
B3D
Packing Type
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.
May 2013 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
5
Free Datasheet http://www.datasheetlist.com/
5 Page 
Dual Phase Synchronous Rectified Buck Controller
Typical Performance Characteristics (Continued)
Data Sheet
AP3595
2.000
1.998
1.996
1.994
1.992
1.990
1.988
1.986
1.984
1.982
1.980
-40 -20 0 20 40 60 80 100 120 140
Temperature (oC)
Figure 12. VREF vs. Temperature
310
308
306
304
302
300
298
296
294
292
290
-40
-20
0
20 40 60 80
Temperature (oC)
100 120 140
Figure 13. fOSC vs. Temperature
VPHASE1
10V/div
VRT/EN
1V/div
VOUT
1V/div
VSS
1V/div
Time 4ms/div
Figure 14. Power On Waveforms
VPHASE1
10V/div
VRT/EN
1V/div
VOUT
1V/div
VSS
1V/div
Time 200s/div
Figure 15. Power Off Waveforms
May 2013 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
11
Free Datasheet http://www.datasheetlist.com/
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet AP3595.PDF ] | |
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