Datasheet > ISL6522IV-T

ISL6522IV-T

更新时间： 2024-11-27 22:11:59

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	471K
描述
Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

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ISL6522IV-T 数据手册

ISL6522

Data Sheet

March 4, 2005

FN9030.7

Buck and Synchronous Rectifier

Features

• Drives two N-Channel MOSFETs

Pulse-Width Modulator (PWM) Controller

The ISL6522 provides complete control and protection for a

DC-DC converter optimized for high-performance micro-

processor applications. It is designed to drive two N-Channel

MOSFETs in a synchronous rectified buck topology. The

ISL6522 integrates all of the control, output adjustment,

monitoring and protection functions into a single package.

• Operates from +5V or +12V input

• Simple single-loop control design

- Voltage-mode PWM control

• Fast transient response

- High-bandwidth error amplifier

- Full 0–100% duty ratio

The output voltage of the converter can be precisely

regulated to as low as 0.8V, with a maximum tolerance of

±1% over temperature and line voltage variations.

• Excellent output voltage regulation

- 0.8V internal reference

The ISL6522 provides simple, single feedback loop, voltage-

mode control with fast transient response. It includes a

200kHz free-running triangle-wave oscillator that is

adjustable from below 50kHz to over 1MHz. 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 ratio

ranges from 0–100%.

- ±1% over line voltage and temperature

• Overcurrent fault monitor

- Does not require extra current sensing element

- Uses MOSFETs r

DS(ON)

• Converter can source and sink current

• Small converter size

- Constant frequency operation

- 200kHz free-running oscillator programmable from

The ISL6522 protects against overcurrent conditions by

inhibiting PWM operation. The ISL6522 monitors the current

50kHz to over 1MHz

by using the r

of the upper MOSFET which eliminates

• 14-lead SOIC and TSSOP package and 16-lead 5x5mm

QFN Package

DS(ON)

the need for a current sensing resistor.

• QFN Package

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

No Leads-Product Outline.

- Near Chip-Scale Package Footprint; Improves PCB

Efficiency and Thinner in Profile

SOIC, TSSOP

Pinouts

TOP VIEW

OCSET

VCC

PVCC

LGATE

PGND

BOOT

UGATE

PHASE

• Pb-Free Available (RoHS Compliant)

COMP

Applications

• Power supply for Pentium , Pentium Pro, PowerPC and

AlphaPC™ microprocessors

GND

QFN

• High-power 5V to 3.xV DC-DC regulators

• Low-voltage distributed power supplies

TOP VIEW

16 15 14 13

COMP

12 PVCC

11 LGATE

10 PGND

GND

BOOT

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 trademark of Intersil Americas Inc.

PowerPC is a trademark of IBM. AlphaPC™ is a trademark of Digital Equipment Corporation. Pentium is a registered trademark of Intel Corporation.

12 3 4 5 6 7...14

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与ISL6522IV-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6522IVZ	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522IVZ	RENESAS	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller; QFN16, SOIC14, TSSO
ISL6522IVZ-T	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6523	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6523A	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6523ACB	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6523CB	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6523CB-T	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6523CBZ	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6523CBZ-T	INTERSIL	获取价格	VRM8.5 Dual PWM and Dual Linear Power System Controller

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