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| 型号： | ISL8510IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/21页 |
| 文件大小： | 0K |
| 描述： | IC REG DL BUCK/LINEAR 24-QFN |
| 标准包装： | 6,000 |
| 拓扑： | 降压（降压）（1），线性（LDO）（1） |
| 功能： | 任何功能 |
| 输出数： | 2 |
| 频率 - 开关： | 500kHz |
| 电压/电流 - 输出 1： | 0.6 V ~ 20 V，1A |
| 电压/电流 - 输出 2： | 0.6 V ~ 4.2 V，500mA |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 无 |
| 电源电压： | 5V，5.5 V ~ 25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN（4x4） |
| 包装： | 带卷 (TR) |
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ISL8510
Data Sheet
December 15, 2008
FN6516.2
Dual Output Controller with 1A Standard
Buck PWM and LDO
The ISL8510 is a high-performance, dual output controller
that provides a single, high frequency power solution for a
variety of point of load applications. The ISL8510 integrates
a 1A standard buck PWM controller and switching MOSFET
with one 500mA LDO.
The PWM controller in the ISL8510 drives an internal
switching N-Channel power MOSFET and requires an
external Schottky diode to generate an output voltage from
0.6V to 20V. The integrated power switch is optimized for
excellent thermal performance 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 ISL8510
power-good signal output indicates loss of regulation on the
PWM output.
The ISL8510 features one adjustable LDO regulator using
internal PMOS transistors as pass devices. The enable pin
(EN_LDO) controls the LDO output. A single power-good
signal output indicates loss of regulation on the LDO output.
Independent overcurrent and thermal fault shutdown monitors
are integrated into the “LDO Regulator Capacitor Selection”
on page 16.
The ISL8510 is available in a small 4mmx4mm Quad Flat No
Lead (QFN) package.
Features
? Standard Buck Controller with Integrated Switching Power
MOSFET + 1 LDO
? Integrated Boot Diode
? Input Voltage Range
- Fixed 5V ±10%
- Variable 5.5V to 25V
? PWM Output Voltage Adjustable from 0.6V to 20V with
Continuous Output Current up to 1A
? Voltage Mode Control with Voltage Feed Forward
? Fixed 500kHz Switching Frequency
? Externally Adjustable Soft-Start Time
? Output Undervoltage Protection
? LDO Adjustable Options
- LDO, 0.6V to 4.2V . . . . . . . . . . . . . . . . . . . . . . . 500mA
? Individual Enable Inputs
? Two PGOOD Outputs (PWM and LDO)
? 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
1
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. 2007, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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