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ISL6545ACBZ-T13 PDF预览

ISL6545ACBZ-T13

更新时间： 2024-10-26 14:34:03
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
17页 431K
描述
Switching Controller

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ISL6545ACBZ-T13 技术参数

是否Rohs认证：符合生命周期：Transferred
包装说明：,Reach Compliance Code：compliant
风险等级：5.65Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLERJESD-609代码：e3
湿度敏感等级：3端子面层：Matte Tin (Sn) - annealed
Base Number Matches：1

ISL6545ACBZ-T13 数据手册

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ISL6545, ISL6545A  
October 7, 2015  
Data Sheet  
FN6305.7  
5V or 12V Single Synchronous Buck  
Features  
Pulse-Width Modulation (PWM) Controller  
• Operates from +5V or +12V Supply Voltage (for bias)  
The ISL6545, ISL6545A makes simple work out of  
implementing a complete control and protection scheme for a  
DC/DC stepdown converter driving N-Channel MOSFETs in a  
synchronous buck topology. Since it can work with either 5V or  
12V supplies, this one IC can be used in a wide variety of  
applications within a system. The ISL6545, ISL6545A  
(hereafter referred to as “ISL6545x”, except as needed)  
integrates the control, gate drivers, output adjustment,  
monitoring and protection functions into a single 8 Ld SOIC or  
10 Ld DFN package.  
- 1.0V to 12V V Input Range (up to 20V possible with  
IN  
restrictions; see Input Voltage Considerations)  
- 0.6V to V Output Range  
IN  
- Integrated Gate Drivers use V  
(5V to 12V)  
CC  
- 0.6V Internal Reference; ±1.0% tolerance  
• Simple Single-Loop Control Design  
- Voltage-Mode PWM Control  
- Drives N-Channel MOSFETs  
- Traditional Dual Edge Modulator  
• Fast Transient Response  
The ISL6545x provides single feedback loop, voltage-mode  
control with fast transient response. The output voltage can be  
precisely regulated to as low as 0.6V, with a maximum  
tolerance of ±1.0% over-temperature and line voltage  
variations. A selectable fixed frequency oscillator (ISL6545 for  
300kHz; ISL6545A for 600kHz) reduces design complexity,  
while balancing typical application cost and efficiency.  
- High-Bandwidth Error Amplifier  
- Full 0% to 100% Duty Cycle  
• Lossless, Programmable Overcurrent Protection  
- Uses Lower MOSFET’s r  
DS(ON)  
• Small Converter Size in 8 Ld SOIC or 10 Ld DFN  
- 300kHz or 600kHz Fixed Frequency Oscillator  
The error amplifier features a 20MHz gain-bandwidth  
product and 9V/µs slew rate which enables high converter  
bandwidth for fast transient performance. The resulting  
PWM duty cycles range from 0% to 100%.  
- Fixed Internal Soft-Start, Capable into a Pre-biased  
Load  
- Integrated Boot Diode  
- Enable/Shutdown Function on COMP/SD Pin  
- Output Current Sourcing and Sinking  
Protection from overcurrent conditions is provided by  
monitoring the r  
of the lower MOSFET to inhibit PWM  
DS(ON)  
• Pb-Free (RoHS Compliant)  
operation appropriately. This approach simplifies the  
implementation and improves efficiency by eliminating the  
need for a current sense resistor.  
Applications  
• Power Supplies for Microprocessors or Peripherals  
- PCs, Embedded Controllers, Memory Supplies  
- DSP and Core Communications Processor Supplies  
Pinout  
ISL6545, ISL6545A  
(8 LD SOIC)  
• Subsystem Power Supplies  
TOP VIEW  
- PCI, AGP; Graphics Cards; Digital TV  
1
2
3
4
8
7
6
5
PHASE  
COMP/SD  
FB  
BOOT  
UGATE  
- SSTL-2 and DDR/DDR2/DDR3 SDRAM Bus  
Termination Supply  
GND  
• Cable Modems, Set Top Boxes, and DSL Modems  
• Industrial Power Supplies; General Purpose Supplies  
• 5V or 12V-Input DC/DC Regulators  
LGATE/OCSET  
VCC  
ISL6545, ISL6545A  
(10 LD 3x3 DFN)  
TOP VIEW  
• Low-Voltage Distributed Power Supplies  
1
2
3
4
5
10  
9
BOOT  
PHASE  
UGATE  
COMP/SD  
FB  
GND  
8
N/C  
GND  
7
N/C  
6
LGATE/OCSET  
VCC  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2006, 2007, 2009, 2011, 2015. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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