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ISL6549LOW-EVAL1 PDF预览

ISL6549LOW-EVAL1

更新时间: 2024-01-17 23:56:58
品牌 Logo 应用领域
英特矽尔 - INTERSIL 稳压器控制器
页数 文件大小 规格书
18页 430K
描述
Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller

ISL6549LOW-EVAL1 数据手册

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ISL6549  
®
Data Sheet  
September 22, 2006  
FN9168.2  
Single 12V Input Supply Dual Regulator —  
Synchronous Rectified Buck PWM and  
Linear Power Controller  
Features  
• Single 12V bias supply (no 5V supply is required)  
• Provides two regulated voltages  
- One synchronous rectified buck PWM controller  
- One linear controller  
The ISL6549 provides the power control and protection for  
two output voltages in high-performance applications. The  
dual-output controller drives two N-Channel MOSFETs in a  
synchronous rectified buck converter topology and one  
N-Channel MOSFET in a linear configuration. The controller is  
ideal for applications where regulation of both the processing  
unit and memory supplies is required.  
• Both controllers drive low cost N-Channel MOSFETs  
• Small converter size  
- Adjustable frequency 150kHz to 1MHz  
- Small external component count  
• Excellent output voltage regulation  
- Both outputs: ±1% over temperature  
The synchronous rectified buck converter incorporates  
simple, single feedback loop, voltage-mode control with fast  
transient response. Both the switching regulator and linear  
regulator provide a maximum static regulation tolerance of  
±1% over line, load, and temperature ranges. Each output is  
user-adjustable by means of external resistors.  
• 12V down conversion  
• PWM and linear output voltage range: down to 0.8V  
• Simple single-loop voltage-mode PWM control design  
• Fast PWM converter transient response  
- High-bandwidth error amplifier  
An integrated soft-start feature brings both supplies into  
regulation in a controlled manner. Each output is monitored  
via the FB pins for undervoltage events. If either output drops  
below 75% of the nominal output level, both converters are  
shut off and go into retry mode.  
• Undervoltage fault monitoring on both outputs  
• Pb-free plus anneal available (RoHS compliant)  
Applications  
The ISL6549 is available in a 14 Ld SOIC package,  
16 Ld QSOP, or 16 Ld 4x4 QFN packages.  
Processor and memory supplies  
• ASIC power supplies  
Related Literature  
Technical Brief TB363 Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
(SMDs)  
• Embedded processor and I/O supplies  
• DSP supplies  
Ordering Information  
PART NUMBER  
PART MARKING  
ISL6549CB  
TEMP. RANGE (°C)  
PACKAGE  
PKG. DWG. #  
M14.15  
ISL6549CB  
0 to 70  
0 to 70  
14 Ld SOIC  
ISL6549CBZ (Note)  
ISL6549CR  
6549CBZ  
14 Ld SOIC (Pb-free)  
16 Ld 4x4 QFN  
M14.15  
ISL6549CR  
6549CRZ  
0 to 70  
L16.4x4  
L16.4x4  
M16.15A  
M16.15A  
M16.15A  
M14.15  
ISL6549CRZ (Note)  
ISL6549CA  
0 to 70  
16 Ld 4x4 QFN (Pb-free)  
16 Ld QSOP  
ISL6549CA  
6549CAZ  
0 to 70  
ISL6549CAZ (Note)  
ISL6549CAZA (Note)  
ISL6549IBZ (Note)  
ISL6549IRZ (Note)  
ISL6549IAZ (Note)  
ISL6549LOW-EVAL1  
ISL6549HI-EVAL1  
Add “-T” suffix for tape and reel.  
0 to 70  
16 Ld QSOP (Pb-free)  
16 Ld QSOP (Pb-free)  
14 Ld SOIC (Pb-free)  
16 Ld 4x4 QFN (Pb-free)  
16 Ld QSOP (Pb-free)  
6549CAZ  
0 to 70  
6549IBZ  
-40 to 85  
-40 to 85  
-40 to 85  
6549IRZ  
L16.4x4  
M16.15A  
6549IAZ  
Evaluation Board 1-5A  
Evaluation Board up to 20A  
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets, molding compounds/die attach materials and 100% matte tin plate  
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL  
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2004, 2006. All Rights Reserved  
All other trademarks mentioned are the property of their respective owners.  

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