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IP1827 Datasheet(PDF) 1 Page - International Rectifier

No. de pieza IP1827
Descripción Electrónicos  Highly Integrated 25A Single.input Voltage, Synchronous Buck Regulator
PDF  39 Pages
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Fabricante Electrónico  IRF [International Rectifier]
Página de inicio  http://www.irf.com
Logo IRF - International Rectifier

IP1827 Datasheet(HTML) 1 Page - International Rectifier

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iP1827
Highly Integrated 25A Single‐input Voltage, 
Synchronous Buck Regulator 
March 5, 2012   |   V1.4 
1
97599
FEATURES 
 Wide input application 1.5V―16V 
 Single 3.3V or single 5V application  
 Output Voltage Range: 0.6V to 0.75*Vin 
 0.5% accurate Reference Voltage 
 Programmable Switching Frequency up to 1.5MHz 
 Programmable Soft‐Start 
 Enable input with Voltage Monitoring Capability 
 Remote Sense Amplifier with True Converter 
Voltage Sensing  
 Thermally compensated Hiccup Mode  
Over Current Protection 
 Over‐voltage protection 
 Pre‐Bias Start up 
 Body Braking to improve transient 
 Integrated MOSFET drivers and Bootstrap diode  
 Operating temp: ‐40oC<Tj<125oC 
 Thermal Shut Down 
 Power Good Output with Window Comparator  
 Small Size 7.7mmx7.7mm LGA 
 Halogen Free, Pb‐Free and RoHS Compliant 
BASIC APPLICATION 
 
 
 
 
 
 
 
 
 
Figure 1 : iP1827 Basic Application Circuit  
DESCRIPTION 
The iP1827 iPOWIR
TM is an easy‐to‐use, fully integrated  
and highly efficient DC/DC regulator. The onboard PWM 
controller and MOSFETs make iP1827 a space‐efficient 
solution, providing accurate power delivery for low output 
voltage and high current applications. 
iP1827 is a versatile regulator which offers programmability 
of switching frequency and current limit while operating in 
wide input and output voltage range. 
The switching frequency is programmable from 250kHz to 
1.5MHz for an optimum solution.  
It also features important protection functions, such as  
Pre‐Bias startup, hiccup current limit and thermal 
shutdown to give required system level security in the 
event of fault conditions. 
APPLICATIONS 
 Server Application 
 Netcom Applications 
 Embedded Telecom Systems 
 Distributed Point of Load Power Architectures 
 
 
 
 
 
85
86
87
88
89
90
91
92
93
94
95
96
97
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
Iout (A)
Vo=1.8V
Vo=3.3V
Vin=12V
Vcc=3.3V
No Airflow
Includes biasing loss as well as inductor
losses and stray PCB losses
 
 
Figure 2: iP1827 Efficiency 
iP1827


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