Datasheet > ISL6522BCR

ISL6522BCR

更新时间： 2024-11-27 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	451K
描述
Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

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ISL6522BCR 数据手册

ISL6522B

Data Sheet

April 4, 2005

FN9150.1

Buck and Synchronous Rectifier

Features

• Drives two N-Channel MOSFETs

Pulse-Width Modulator (PWM) Controller

The ISL6522B provides complete control and protection for a

DC-DC converter optimized for high-performance

microprocessor applications. It is designed to drive two

N-Channel MOSFETs in a synchronous rectified buck topology.

The ISL6522B 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 ISL6522B 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 perform-

ance. 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

• Pre-Biased Load Start Up

• Small converter size

- Constant frequency operation

- 200kHz free-running oscillator programmable from

50kHz to over 1MHz

The ISL6522B protects against overcurrent conditions by

inhibiting PWM operation. The ISL6522B monitors the

current by using the r

of the upper MOSFET which

DS(ON)

eliminates the need for a current sensing resistor.

• 14-lead SOIC package and 16-lead 5x5mm QFN Package

• QFN Package

Pinouts

ISL6522B (SOIC)

TOP VIEW

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

OCSET

VCC

No Leads-Product Outline

PVCC

LGATE

PGND

BOOT

UGATE

PHASE

- Near Chip-Scale Package Footprint; Improves PCB

Efficiency and Thinner in Profile

• Pb-Free Available (RoHS Compliant)

COMP

Applications

• Power supply for Pentium , Pentium Pro, PowerPC and

AlphaPC™ microprocessors

GND

ISL6522B (QFN)

• FPGA Core DC/DC Converters

TOP VIEW

• Low-voltage distributed power supplies

16 15 14 13

COMP

12 PVCC

11 LGATE

10 PGND

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 registered 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...15

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与ISL6522BCR相关器件

型号	品牌	获取价格	描述	数据表
ISL6522BCR-T	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522BCR-T	RENESAS	获取价格	SWITCHING CONTROLLER, 230kHz SWITCHING FREQ-MAX, PQCC16, 5 X 5 MM, PLASTIC, MO-220VHHB, QF
ISL6522BCRZ	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522BCRZ	RENESAS	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller; QFN16, SOIC14; Temp
ISL6522BCRZ-T	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522BIB	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522BIB-T	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522BIB-T	RENESAS	获取价格	SWITCHING CONTROLLER, 230kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, MS-012AB, SOIC-14
ISL6522BIBZ	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522BIBZ	RENESAS	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller; QFN16, SOIC14; Temp

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