Datasheet > ISL8502

ISL8502

更新时间： 2024-11-15 04:44:55

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
19页	528K
描述
2.5A Synchronous Buck Regulator with Integrated MOSFETs

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ISL8502 数据手册

ISL8502

Data Sheet

January 17, 2007

FN6389.0

2.5A Synchronous Buck Regulator with

Integrated MOSFETs

Features

• Over 2.5A Continuous Output Current

The ISL8502 is a synchronous buck controller with internal

MOSFETs packaged in a small 4mmx4mm QFN package.

The ISL8502 can support a continuous load of 2.5A and has

a very wide input voltage range. With the switching

MOSFETs integrated into the IC, the complete regulator

footprint can be very small and provide a much more

efficient solution than a linear regulator.

• Integrated MOSFETs for Small Regulator Footprint

• Adjustable Switching Frequency, 500kHz - 1.2MHz

• Tight Output Voltage Regulation, ±1% Over Temperature

• Wide Input Voltage Range, 5V ±10% or 5.5V to 14V

• Wide Output Voltage Range, from 0.6V

The ISL8502 is capable of stand alone operation or it can be

used in a master slave combination for multiple outputs that

are derived from the same input rail. Multiple slave channels

(up to six) can be synchronized. This method minimizes the

EMI and beat frequencies effect with multi-channel

operation.

• Simple Single-Loop Voltage-Mode PWM Control Design

• Input Voltage Feed-Forward for Constant Modulator Gain

• Fast PWM Converter Transient Response

• Lossless r

Protection

High Side and Low Side Overcurrent

DS(ON)

The switching PWM controller drives two internal N-Channel

MOSFETs in a synchronous-rectified buck converter

• Undervoltage Detection

• Integrated Thermal Shutdown Protection

• Power Good Indication

topology. The synchronous buck converter uses voltage-

mode control with fast transient response. The switching

regulator provides a maximum static regulation tolerance of

±1% over line, load, and temperature ranges. The output is

user-adjustable by means of external resistors down to 0.6V.

• Adjustable Soft-Start

• Pb-Free Plus Anneal Available (RoHS Compliant)

The output is monitored for undervoltage events. The

switching regulator also has overcurrent protection. Thermal

shutdown is integrated. The ISL8502 features a bidirectional

Enable pin that allows the part to pull the enable pin low

during fault detection.

Applications

•

Point of Load Applications

Graphics Cards - GPU and Memory Supplies

• ASIC Power Supplies

• Embedded Processor and I/O supplies

• DSP Supplies

Pinout

ISL8502

(24 LD QFN)

TOP VIEW

Ordering Information

PART

TEMP.

PKG.

NUMBER

MARKING RANGE (°C)

PACKAGE

DWG. #

24 23 22 21 20 19

ISL8502IRZ*

(Note)

85 02IRZ

-40 to +85 24 Ld 4x4 QFN L24.4x4D

(Pb-free)

PGOOD

SGND

18 VIN

17 PHASE

*Add “-T” suffix for tape and reel.

NOTE: Intersil Pb-free plus anneal 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-020.

PHASE

15 PHASE

GND

SYNCH

M/S

PHASE

13 PGND

10 11 12

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

1-888-INTERSIL or 1-888-468-3774 | 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...19

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与ISL8502相关器件

型号	品牌	获取价格	描述	数据表
ISL8502A	INTERSIL	获取价格	2A Synchronous Buck Regulator with Integrated MOSFETs
ISL8502AEVAL1Z	INTERSIL	获取价格	2A Synchronous Buck Regulator with Integrated MOSFETs
ISL8502AIRZ	INTERSIL	获取价格	2A Synchronous Buck Regulator with Integrated MOSFETs
ISL8502AIRZ-T	RENESAS	获取价格	2A Synchronous Buck Regulator with Integrated MOSFETs; QFN24; Temp Range: -40° to
ISL8502IRZ	RENESAS	获取价格	2A Synchronous Buck Regulator with Integrated MOSFETs; QFN24; Temp Range: -40° to
ISL8502IRZ	INTERSIL	获取价格	2.5A Synchronous Buck Regulator with Integrated MOSFETs
ISL8502IRZ-T	RENESAS	获取价格	2A Synchronous Buck Regulator with Integrated MOSFETs; QFN24; Temp Range: -40° to
ISL85033	INTERSIL	获取价格	Wide VIN Dual Standard Buck Regulator With 3A/3A Coutinuous Output Current
ISL85033	RENESAS	获取价格	Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current
ISL85033_1012	INTERSIL	获取价格	Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current

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