Datasheet > ISL6553CB-T

ISL6553CB-T

更新时间： 2024-11-28 22:13:55

品牌	Logo	应用领域
英特矽尔 - INTERSIL		调节器微处理器多相元件控制器
页数	文件大小	规格书
15页	180K
描述
Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

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ISL6553CB-T 数据手册

ISL6553

Data Sheet

November 2000

File Number 4931

Microprocessor CORE Voltage Regulator

Multi-Phase Buck PWM Controller

Features

• Multi-Phase Power Conversion

The ISL6553 multi-phase PWM control IC together with its

companion gate drivers, the HIP6601, HIP6602 or HIP6603

and Intersil MOSFETs provides a precision voltage

regulation system for advanced microprocessors. Multi-

phase power conversion is a marked departure from earlier

single phase converter conﬁgurations previously employed

to satisfy the ever increasing current demands of modern

microprocessors. Multi-phase converters, by distributing the

power and load current results in 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 due to the

phase interleaving process of this topology. For example, a

two phase converter operating at 350kHz will have a ripple

frequency of 700kHz. Moreover, greater converter

bandwidth of this design results in faster response to load

transients.

• Precision Channel Current Sharing

- Loss Less Current Sampling - Uses r

DS(ON)

• Precision CORE Voltage Regulation

- ±1% System Accuracy Over Temperature

• Microprocessor Voltage Identiﬁcation Input

- 5-Bit VID Input

- 1.05V to 1.825V in 25mV Steps

- Programmable “Droop” Voltage

• Fast Transient Recovery Time

• Over Current Protection

• High Ripple Frequency, (Channel Frequency) Times

Number Channels . . . . . . . . . . . . . . . . . 100kHz to 3MHz

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Outstanding features of this controller IC include

programmable VID codes from the microprocessor that

range from 1.05V to 1.825V with a system accuracy of ±1%.

Pull up currents on these VID pins eliminates the need for

external pull up resistors. In addition “droop” compensation,

used to reduce the overshoot or undershoot of the CORE

voltage, is easily programmed with a single resistor.

Ordering Information

PART NUMBER

TEMP. ( C)

PACKAGE

PKG. NO.

ISL6553CB

0 to 70

16 Ld SOIC

M16.15

ISL6553CB-T

ISL6553EVAL1

16 Ld SOIC Tape and Reel

Evaluation Platform

Another feature of this controller IC is the PGOOD monitor

circuit which is held low until the CORE voltage increases,

during its Soft-Start sequence, to within 10% of the

programmed voltage. Over-voltage, 15% above programmed

CORE voltage, results in the converter shutting down and

turning the lower MOSFETs ON to clamp and protect the

microprocessor. Under voltage is also detected and results

in PGOOD low if the CORE voltage falls 10% below the

programmed level. Over-current protection reduces the

regulator RMS output current to 41% of the programmed

over-current trip value. These features provide monitoring

and protection for the microprocessor and power system.

Pinout

ISL6553 (SOIC)

TOP VIEW

VID3

16 VCC

VID2

VID1

15 PGOOD

14 ISEN1

13 PWM1

12 PWM2

11 ISEN2

10 VSEN

VID0

VID25mV

COMP

FS/DIS

GND

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

12 3 4 5 6 7...15

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与ISL6553CB-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6553CBZ	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
ISL6553CBZ	RENESAS	获取价格	Microprocessor CORE Voltage Regulator 2 Phase Buck PWM Controller; SOIC16; Temp Range: 0&a
ISL6553CBZ-T	RENESAS	获取价格	Microprocessor CORE Voltage Regulator 2 Phase Buck PWM Controller; SOIC16; Temp Range: 0&a
ISL6553EVAL1	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
ISL6554	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Using Multi-Phase Buck PWM Control Without Programma
ISL6554CB	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Using Multi-Phase Buck PWM Control Without Programma
ISL6554CB-T	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Using Multi-Phase Buck PWM Control Without Programma
ISL6554CBZ	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Using Multi-Phase Buck PWM Control Without Programma
ISL6554CBZA	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Using Multi-Phase Buck PWM Control Without Programma
ISL6554CBZA-T	INTERSIL	获取价格	Microprocessor CORE Voltage Regulator Using Multi-Phase Buck PWM Control Without Programma

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