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ISL85001EVAL1Z 数据手册 - Intersil(英特矽尔)
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Intersil(英特矽尔)
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PWM 调节器ISL85001EVAL1Z 套件旨在具有负载点直流/直流功率转换应用需求的人士使用,输入电压范围为 4.5V 至 25V。 ISL85001EVAL1Z 评估板用于演示 ISL85001 1A 标准降压 PWN 调节器的性能。 该 ISL85001 采用 4x3mm 12 引线 DFN 封装,最大高度为 1mm。标准降压控制器,带集成切换功率 MOSFET 集成升压二极管 输入电压范围:固定 5V ±10%,或可从 5.5V 变为 25V PWM 输出电压可从 0.6V 调为 19V,连续输出电流最大 1A ±1% VFB 容差 电压模式控制,带有电压前馈 固定 500kHz 切换频率 外部可调软启动时间 输出欠电压保护 启用输入 电源良好 (PGOOD) 输出 过电流保护 热过载保护 内部 5V 低压降 (LDO) 调节器 ### 开关电压调节器,Intersil
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ISL85001EVAL1Z数据手册
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1
1A Standard Buck PWM Regulator
ISL85001
The ISL85001 is a high-performance, simple output controller
that provides a single, high frequency power solution for a
variety of point-of-load applications. The ISL85001 integrates a
1A standard buck PWM controller and switching MOSFET.
The PWM controller in the ISL85001 drives an internal
switching N-Channel power MOSFET and requires an external
Schottky diode to generate an output voltage from 0.6V to
19V. The integrated power switch is optimized for excellent
thermal performance for up to 1A of output current. The
standard buck input voltage range supports a fixed 5V or
variable 5.5V to 25V range. The PWM regulator switches at a
fixed frequency of 500kHz and utilizes simple voltage mode
control with input voltage feed-forward to provide flexibility in
component selection and minimize solution size. Protection
features include overcurrent, undervoltage and thermal
overload protection integrated into the IC. The ISL85001
power-good signal output indicates loss of regulation on the
PWM output.
ISL85001 is available in a small 4mmx3mm Dual Flat No-Lead
(DFN) package.
Related Literature
•See AN1443, “ISL85001EVAL1Z 1A Regulator Standard
Buck PWM”
•See TB417
, “Designing Stable Compensation Networks for
Single Phase Voltage Mode Buck Regulators”
Features
• Standard Buck Controller with Integrated Switching Power
MOSFET
• Integrated Boot Diode
• Input Voltage Range
- Fixed 5V ±10%
- Variable 5.5V to 25V
• PWM Output Voltage Adjustable from 0.6V to 19V with
Continuous Output Current up to 1A
• ±1% VFB Tolerance
• Voltage Mode Control with Voltage Feed-Forward
• Fixed 500kHz Switching Frequency
• Externally Adjustable Soft-Start Time
• Output Undervoltage Protection
•Enable Inputs
• PGOOD Output
• Overcurrent Protection
• Thermal Overload Protection
• Internal 5V LDO Regulator
• Pb-Free (RoHS compliant)
Applications
•General Purpose
• WLAN Cards-PCMCIA, Cardbus32, MiniPCI Cards-Compact
Flash Cards
•Hand-Held Instruments
•LCD Panel
•Set-top Box
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|Copyright Intersil Americas Inc. 2008, 2009, 2012. 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.
May 29, 2012
FN6769.2
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