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IR3810MPBFのメーカーはInternational Rectifierです、この部品の機能は「SYNCHRONOUS BUCK REGULATOR」です。 |
部品番号 | IR3810MPBF |
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部品説明 | SYNCHRONOUS BUCK REGULATOR | ||
メーカ | International Rectifier | ||
ロゴ | |||
このページの下部にプレビューとIR3810MPBFダウンロード(pdfファイル)リンクがあります。 Total 21 pages
www.DataSheet4U.com
PD-60344
IR3810MPbF
SupIRBuckTM
HIGHLY INTEGRATED 12A
WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
• Wide Input Voltage Range 2.5V to 21V
• Wide Output Voltage Range 0.6V to 12V
• Continuous 12A Load Capability
• 600kHz High Frequency Operation
• Programmable Over-Current-Protection
• Hiccup Current Limit
• Tracking capability for Memory Application
• Precision Reference Voltage (0.6V)
• Programmable Soft-Start
• Pre-Bias Start-up
• Thermal Protection
• Thermally Enhanced Package
• Small Size 5mmx6mm QFN
• Pb-Free (RoHS Compliant)
Applications
• Distributed Point-of-Loads
• Server and Workstations
• Embedded Systems
• Storage Systems
• DDR Applications
• Graphics Cards
• Game Consoles
• Computing Peripheral Voltage Regulators
Description
The IR3810 SupIRBuckTM is an easy-to-use, fully
integrated and highly efficient DC/DC regulator.
The onboard switching controller and MOSFETs
make the IR3810 a space-efficient solution,
providing accurate power delivery for low output
voltage applications.
The IR3810 operates from a single 4.5V to 14V
input supply and generates an output voltage
adjustable from 0.6V to 0.75*Vin at loads up to
12A.
IR3810 can be configured for tracking
applications to generate termination voltage (VTT)
for memory applications.
A versatile regulator offering programmability of
start up time and current limit, the IR3810’s fixed
600kHz switching frequency allows the use of
small external components.
IR3810 also features important protection
functions, such as Pre-Bias startup, hiccup
current limit and thermal shutdown to provide the
required system level security in the event of fault
conditions.
03/07/08
Fig. 1. Typical application diagram
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Block Diagram
PD-60344
IR3810MPbF
03/07/08
Fig. 3. Simplified block diagram of the IR3810.
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Parameter
Oscillator
Frequency
Ramp Amplitude
Min Pulse Width
Max Duty Cycle
Error Amplifier
Input Bias Current
Input Bias Current
Input Bias Current
Source/Sink Current
Transconductance
Input Offset Voltage
Vp( (Common Mode Range)
Soft Start/SD
Soft Start Current
Shutdown Output Threshold
Over Current Protection
OCSET Current
Hiccup Current
Hiccup Duty Cycle
Thermal Shutdown
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
SYM
Test Condition
FS
Vramp
Dmin(ctrl)
Dmax
Note3
Note3
Fb=0V
IFB1
IVp
IFB2
I(source/Sink)
gm
Vos
SS=3V
SS=3V
SS=0V
Fb to Vp
ISS SS=0V
SD
IOCSET
IHiccup
Hiccup(duty)
Note3
IHiccup / ISS , Note3
Note3
Note3
PD-60344
IR3810MPbF
Min TYP MAX Units
540 600 660
1.25
80
75
kHz
V
ns
%
30
50
1000
-4.5
0.2
-0.1
-0.1
50
70
1300
0
-0.5
-0.5
70
90
1600
+4.5
1.0
μA
μmho
mV
V
15 20 28
μA
0.25 V
15 20 26
3
15
μA
%
140
20 oC
Note1: Continuous output current determined by input and output voltage setting and the thermal environment.
Note2: Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production.
Note3: Guaranteed by Design but not tested in production.
03/07/08
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ページ | 合計 : 21 ページ | ||
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部品番号 | 部品説明 | メーカ |
IR3810MPBF | SYNCHRONOUS BUCK REGULATOR | International Rectifier |