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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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开发板
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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
®
FN6769.1
ISL85001
1A Standard Buck PWM Regulator
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.
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
Pinout
ISL85001
(12 LD 4X3 DFN)
TOP VIEW
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL85001IRZ 501Z -40 to +85 12 Ld DFN L12.4x3
ISL85001IRZ-T* 501Z -40 to +85 12 Ld DFN L12.4x3
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish,
which is 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.
GND
EN
SS
COMP
FB
PG
VIN
VIN
PHASE
PHASE
BOOT
VDD
1
2
3
4
5
6
12
11
10
9
8
7
GND
Data Sheet March 17, 2009
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2008, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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