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PDF IR3550 Data sheet ( Hoja de datos )
| Número de pieza | IR3550 | |
| Descripción | 60A Integrated PowIRstage | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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60A Integrated PowIRstage® IR3550
FEATURES
Peak efficiency up to 95% at 1.2V
Integrated driver, control MOSFET, synchronous
MOSFET and Schottky diode
Input voltage (VIN) range up to 25V
Output voltage range from 0.25V up to 3.3V
Output current capability of 60A
Operation up to 1.0MHz
Integrated current sense amplifier
VCC under voltage lockout
Thermal flag
Body‐Braking™ load transient support
Diode‐emulation high efficiency mode
Compatible with 3.3V PWM logic and VCC tolerant
Compliant with Intel DrMOS V4.0
PCB footprint compatible with PowIRstage® family
Efficient dual sided cooling
Small 6mm x 6 mm x 0.9mm PQFN package
Lead free RoHS compliant package
APPLICATIONS
High frequency, low profile DC‐DC converters
Voltage Regulators for CPUs, GPUs, and DDR
memory arrays
BASIC APPLICATION
Figure 1: IR3550 Basic Application Circuit
DESCRIPTION
The IR3550 integrated PowIRstage® is a synchronous buck
gate driver IC with co‐packed control and synchronous
MOSFETs and Schottky diode. It is optimized internally for
PCB layout, heat transfer and driver/MOSFET timing.
Custom designed gate driver and MOSFET combination
enables higher efficiency at lower output voltages required
by cutting edge CPU, GPU and DDR memory designs.
Up to 1.0MHz switching frequency enables high
performance transient response, allowing miniaturization
of output inductors, as well as input and output capacitors
while maintaining industry leading efficiency. The IR3550’s
superior efficiency enables smallest size and lower solution
cost. The IR3550 PCB footprint is compatible with
PowIRstage® family.
Integrated current sense amplifier achieves superior
current sense accuracy and signal to noise ratio vs. best‐in‐
class controller based Inductor DCR sense methods.
The IR3550 incorporates the Body‐Braking® feature which
enables reduction of output capacitors and is activated
quickly. Synchronous diode‐emulation mode in the IR3550
removes the zero‐current detection and control burden
from the PWM controller and increases system efficiency.
The IR3550 is optimized specifically for CPU core power
delivery in server applications. The ability to meet the
stringent requirements of the server market also makes
the IR3550 ideally suited to powering GPU and DDR
memory designs.
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Output Current (A)
Figure 2: IR3550 Efficiency
1 March 4th, 2011 | DATASHEET | V3.01
Datasheet pdf - http://www.DataSheet4U.net/
1 page | ||
| Páginas | Total 1 Páginas | |
| PDF Descargar | [ Datasheet IR3550.PDF ] | |
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