Datasheet > ISL6567

ISL6567

更新时间： 2024-11-06 22:57:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		驱动器控制器
页数	文件大小	规格书
26页	656K
描述
Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers

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ISL6567 数据手册

ISL6567

Data Sheet

November 2, 2005

FN9243.0

Multipurpose Two-Phase Buck PWM

Controller with Integrated MOSFET

Drivers

Features

• Integrated Two-Phase Power Conversion

- Integrated 4A Drivers for High Efficiency

The ISL6567 two-phase synchronous buck PWM control IC

provides a precision voltage regulation system for point-of-

load and other high-current applications requiring an efficient

and compact implementation. Multi-phase power conversion

is a marked departure from single phase converter

configurations employed to satisfy the increasing current

demands of various electronic circuits. By distributing the

power and load current, implementation of multi-phase

converters utilize smaller and lower cost transistors with

fewer input and output capacitors. These reductions accrue

from the higher effective conversion frequency with higher

frequency ripple current resulting from the phase

• Shunt Regulator for Wide Input Power Conversion

- 5V and Higher Bias

- Up to 20V Power Down-Conversion

• Precision Channel Current Sharing

- Loss-Less Current Sampling - Uses r

DS(ON)

• Precision Output Voltage Regulation

- ±1% System Accuracy Over Temperature (Commercial)

• 0.6V Internal Reference

• Full Spectrum Voltage Tracking

- Coincidental, Ratiometric, or Offset

interleaving inherent to this topology.

• Sequential Start-up Control

Outstanding features of this controller IC include an internal

0.6V reference with a system regulation accuracy of ±1%, an

optional external reference input, and user-adjustable

switching frequency. Precision regulation is further

enhanced by the available unity-gain differential amplifier

targeted at remote voltage sensing capability, while output

regulation is monitored and its quality is reported via a

PGOOD pin. Also included, an internal shunt regulator with

optional external connection capability extends the

operational input voltage range. For applications requiring

voltage tracking or sequencing, the ISL6567 offers a host of

possibilities, including coincidental, ratiometric, or offset

tracking, as well as sequential start-ups, user adjustable for

a wide range of applications.

• Adjustable Switching Frequency

- 150kHz - 1.5MHz

• Fast Transient Recovery Time

• Unity-Gain Differential Amplifier

- Increased Voltage Sensing Accuracy

• Overcurrent Protection

• Overvoltage Protection

• Start-up into Pre-Charged Output

• Small, QFN Package Footprint

• Pb-Free Plus Anneal Available (RoHS Compliant)

Protection features of this controller IC include overvoltage

and overcurrent protection. Overvoltage results in the

converter turning the lower MOSFETs ON to clamp the rising

output voltage. The ISL6567 uses cost and space-saving

sensing for channel current balance, dynamic

DS(ON)

voltage positioning, and overcurrent protection. Channel

current balancing is automatic and accurate with the

integrated current-balance control system. Overcurrent

protection can be tailored to various application with no need

for additional parts.

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.

All other trademarks mentioned are the property of their respective owners.

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与ISL6567相关器件

型号	品牌	获取价格	描述	数据表
ISL6567_07	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567CRZ	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567CRZ-T	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567CRZ-T13	RENESAS	获取价格	Switching Controller
ISL6567CRZ-T7	RENESAS	获取价格	Switching Controller
ISL6567EVAL1	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567EVAL1Z	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567IRZ	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567IRZ-T	INTERSIL	获取价格	Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers
ISL6567IRZ-T13	RENESAS	获取价格	Switching Controller

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