Datasheet > ISL6526IR

ISL6526IR

更新时间： 2024-11-28 22:57:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		控制器
页数	文件大小	规格书
15页	417K
描述
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

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ISL6526IR 数据手册

ISL6526

Data Sheet

August 2004

FN9055.5

Single Synchronous Buck Pulse-Width

Modulation (PWM) Controller

Features

• Operates from 3.3V to 5V Input

The ISL6526 makes simple work out of implementing a

complete control and protection scheme for a DC-DC

stepdown converter. Designed to drive N-Channel

MOSFETs in a synchronous buck topology, the ISL6526

integrates the control, output adjustment, monitoring and

protection functions into a single package.

• 0.8V to V Output Range

- 0.8V Internal Reference

- ±1.5% Over Load, Line Voltage and Temperature

• Drives N-Channel MOSFETs

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

The ISL6526 provides simple, single feedback loop, voltage-

mode control with fast transient response. The output

voltage can be precisely regulated to as low as 0.8V, with a

maximum tolerance of ±1.5% over temperature and line

voltage variations. A fixed frequency oscillator reduces

design complexity, while balancing typical application cost

and efficiency.

• Fast Transient Response

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Cycle

• Lossless, Programmable Overcurrent Protection

- Uses Upper MOSFET’s r

DS(on)

The error amplifier features a 15MHz gain-bandwidth

product and 6V/µs slew rate which enables high converter

bandwidth for fast transient performance. The resulting

PWM duty cycles range from 0% to 100%.

• Converter can Source and Sink Current

• Small Converter Size

- Internal Fixed Frequency Oscillator

ISL6526: 300kHz

ISL6526A: 600kHz

Protection from overcurrent conditions is provided by

monitoring the r

of the upper MOSFET to inhibit PWM

DS(ON)

• Internal Soft-Start

operation appropriately. This approach simplifies the

implementation and improves efficiency by eliminating the

need for a current sense resistor.

• 14 Lead SOIC or 16 Lead, 5x5 QFN

• QFN Package:

- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat

No Leads - Package Outline

- Near Chip Scale Package footprint, which improves

PCB efficiency and has a thinner profile

• Pb-free Available

Applications

• Power Supplies for Microprocessors

- PCs

- Embedded Controllers

• Subsystem Power Supplies

- PCI/AGP/GTL+ Buses

- ACPI Power Control

- DDR SDRAM Bus Termination Supply

• Cable Modems, Set Top Boxes, and DSL Modems

• DSP and Core Communications Processor Supplies

• Memory Supplies

• Personal Computer Peripherals

• Industrial Power Supplies

• 3.3V-Input DC-DC Regulators

• Low-Voltage Distributed Power Supplies

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

12 3 4 5 6 7...15

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ISL6526IR 替代型号

型号	品牌	替代类型	描述	数据表
ISL6526CR	INTERSIL	类似代替	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6526IRZ-T	INTERSIL	类似代替	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

与ISL6526IR相关器件

型号	品牌	获取价格	描述	数据表
ISL6526IR-T	RENESAS	获取价格	2A SWITCHING CONTROLLER, 340kHz SWITCHING FREQ-MAX, PQCC16, 5 X 5 MM, PLASTIC, MO-220-VHHB
ISL6526IRZ	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6526IRZ-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6526IRZ-TK	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation PWM Controller
ISL6527	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527A	ETC	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527ACB	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527ACB-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527ACBZ	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527ACBZA	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

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