Datasheet > ISL6521

ISL6521

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
13页	602K
描述
PWM Buck DC-DC and Triple Linear Power Controller

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ISL6521 数据手册

ISL6521

Data Sheet

February 8, 2005

FN9148.2

PWM Buck DC-DC and Triple Linear

Power Controller

Features

• Provides 4 Regulated Voltages

- Switching Regulator 20A Capable

- Three Linear Regulators

- Capable of 120mA

- Capable of up to 3A with an External Transistor

• Externally Resistor-Adjustable Outputs

The ISL6521 provides the power control and protection for

four output voltages in low-voltage, high-performance

applications. The IC integrates a voltage-mode PWM

controller and three linear controllers, as well as monitoring

and protection functions into a 16-lead SOIC package. The

PWM controller is intended to regulate the low voltage

supply that requires the greatest amount of current (usually

the core voltage for the FPGA, ASIC, or processor) with a

synchronous rectified buck converter. The linears are

intended to regulate other system voltages, such as I/O

(input/output) and memory circuits. Both the switching

regulator and linear voltage reference provide ±2% of static

regulation over line, load, and temperature ranges. All

outputs are user-adjustable by means of an external resistor

divider. All linear controllers can supply up to 120mA with no

external pass devices. Employing bipolar NPNs for the pass

transistors, the linear regulators can achieve output currents

of 3A or higher with proper device selection.

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

• Fast PWM Converter Transient Response

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Ratio

• Excellent Output Voltage Regulation

- All Outputs: ±2% Over Temperature

• Overcurrent Fault Monitors

- Switching Regulator Does Not Require Extra Current

Sensing Element, Uses MOSFET’s r

DS(ON)

• Small Converter Size

- 300kHz Constant Frequency Operation

- Small External Component Count

The ISL6521 monitors all the output voltages. The PWM

controller’s adjustable overcurrent function monitors the

output current by using the voltage drop across the upper

• Commercial and Industrial Temperature Range Support

• Pb-free Available (RoHS Compliant)

MOSFET’s r

. The linear regulator outputs are

DS(ON)

monitored via the FB pins for undervoltage events.

Ordering Information

Applications

PKG.

™

•

PowerPC

FPGA and

-based boards

PART NUMBER TEMP. RANGE (°C) PACKAGE

DWG. #

• General purpose, low voltage power supplies

ISL6521CBZ

(Note)

0 to 70

16 Ld SOIC

(Pb-free)

M16.15

Related Literature

ISL6521CBZ-T

(Note)

0 to 70

16 Ld SOIC

(Pb-free)

• Technical Support Document AG0001, “Power

Management Application Guide for Xilinx FPGAs”

ISL6521IBZ

(Note)

-40 to 85

16 Ld SOIC

(Pb-free)

• Technical Support Document AG0002, “Power

Management Application Guide for Altera FPGAs”

ISL6521IBZ-T

(Note)

-40 to 85

16 Ld SOIC

(Pb-free)

• Technical Support Document AG0005, “Power

Management Application Guide for Actel FPGAs”

ISL6521EVAL1

Evaluation Board

NOTE: Intersil Pb-free products employ special Pb-free material sets;

molding compounds/die attach materials and 100% matte tin plate

termination finish, which are RoHS compliant and compatible with

both SnPb and Pb-free soldering operations. Intersil Pb-free products

are MSL classified at Pb-free peak reflow temperatures that meet or

exceed the Pb-free requirements of IPC/JEDEC J STD-020C.

ISL6521 (SOIC)

Pinout

TOP VIEW

DRIVE2

FB2

16 FB3

15 DRIVE3

14 FB4

13 DRIVE4

12 OCSET

11 VCC

COMP

GND

PHASE

BOOT

UGATE

10 LGATE

PGND

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...13

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与ISL6521相关器件

型号	品牌	获取价格	描述	数据表
ISL6521CBZ	INTERSIL	获取价格	PWM Buck DC-DC and Triple Linear Power Controller
ISL6521CBZA	RENESAS	获取价格	PWM Buck DC/DC and Triple Linear Power Controller; SOIC16; Temp Range: See Datasheet
ISL6521CBZA-T	RENESAS	获取价格	PWM Buck DC/DC and Triple Linear Power Controller; SOIC16; Temp Range: See Datasheet
ISL6521CBZ-T	INTERSIL	获取价格	PWM Buck DC-DC and Triple Linear Power Controller
ISL6521EVAL1	INTERSIL	获取价格	PWM Buck DC-DC and Triple Linear Power Controller
ISL6521IBZ	INTERSIL	获取价格	PWM Buck DC-DC and Triple Linear Power Controller
ISL6521IBZ-T	INTERSIL	获取价格	PWM Buck DC-DC and Triple Linear Power Controller
ISL6522	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522_06	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6522A	INTERSIL	获取价格	Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

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