Datasheet > ISL6527AIRZ

ISL6527AIRZ

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
14页	402K
描述
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

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ISL6527AIRZ 数据手册

ISL6527

Data Sheet

April 8, 2005

FN9056.7

Single Synchronous Buck Pulse-Width

Modulation (PWM) Controller

The ISL6527 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 ISL6527

integrates the control, output adjustment, monitoring and

protection functions into a single package.

Features

• Operates from 3.3V to 5V input

• Utilizes an external reference

• Drives N-Channel MOSFETs

• Simple single-loop control design

- Voltage-mode PWM control

• Fast transient response

- High-bandwidth error amplifier

- Full 0% to 100% duty cycle

The ISL6527 provides simple, single feedback loop, voltage-

mode control with fast transient response. The output voltage

can be regulated to as low as the provided external reference.

A fixed frequency oscillator reduces design complexity, while

balancing typical application cost and efficiency.

• 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

ISL6527: 300kHz

ISL6527A: 600kHz

Protection from overcurrent conditions is provided by

monitoring the r

of the upper MOSFET to inhibit PWM

DS(ON)

- Internal soft-start

- 14 Lead SOIC or 16 Lead, 5x5 QFN

operation appropriately. This approach simplifies the

implementation and improves efficiency by eliminating the

need for a current sense resistor.

• 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 (RoHS Compliant)

Applications

• Power supplies for microprocessors

- PCs

- Embedded controllers

• Subsystem power supplies

- PCI/AGP/GTL+ busses

- 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 1-888-352-6832 | 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ISL6527AIRZ相关器件

型号	品牌	获取价格	描述	数据表
ISL6527AIRZ-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CB	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CB-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CBZ	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CBZ-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CR	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CR-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CRZ	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527CRZ-T	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6527EVAL1	INTERSIL	获取价格	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

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