Datasheet > ISL6236

ISL6236

更新时间： 2024-11-12 04:58:39

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电脑控制器
页数	文件大小	规格书
36页	3155K
描述
High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

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ISL6236 数据手册

ISL6236

Data Sheet

February 1, 2007

FN6373.2

High-Efficiency, Quad-Output, Main Power

Supply Controllers for Notebook

Computers

Features

• Wide Input Voltage Range 5.5V to 25V

• Dual Fixed 1.05V/3.3V and 1.5V/5.0V Outputs or

Adjustable 0.7V to 5.5V (SMPS1) and 0V to 2.5V

(SMPS2), ±1.5% Accuracy

The ISL6236 dual step-down, switch-mode power-supply

(SMPS) controller generates logic-supply voltages in

battery-powered systems. The ISL6236 include two

• Secondary Feedback Input (Maintains Charge Pump

Voltage)

pulse-width modulation (PWM) controllers, 5V/3.3V and

1.5V/1.05V. The output of SMPS1 can also be adjusted from

0.7V to 5.5V. The SMPS2 output can be adjusted from 0V to

2.5V by setting REFIN2 voltage. An optional external charge

pump can be monitored through SECFB. This device feature

a linear regulator providing 3.3V/5V, or adjustable from 0.7V to

4.5V output via LDOREFIN. The linear regulator provides up

to 100mA output current with automatic linear-regulator

bootstrapping to the BYP input. When in switchover, the LDO

output can source up to 200mA. The ISL6236 includes

on-board power-up sequencing, the power-good (POK )

outputs, digital soft-start, and internal soft-stop output

discharge that prevents negative voltages on shutdown.

• 1.7ms Digital Soft-Start and Independent Shutdown

• Fixed 3.3V/5.0V, or Adjustable Output 0.7V to 4.5V,

±1.5% (LDO): 200mA

• 3.3V Reference Voltage ±2.0%: 5mA

• 2.0V Reference Voltage ±1.0%: 50µA

• Constant ON-TIME Control with 100ns Load-Step

Response

• Frequency Selectable

• r

Current Sensing

DS(ON)

A constant on-time PWM control scheme operates without

sense resistors and provides 100ns response to load

transients while maintaining a relatively constant switching

frequency. The unique ultrasonic pulse-skipping mode

maintains the switching frequency above 25kHz, which

eliminates noise in audio applications. Other features include

pulse skipping, which maximizes efficiency in light-load

applications, and fixed-frequency PWM mode, which reduces

RF interference in sensitive applications.

• Programmable Current Limit with Foldback Capability

• Selectable PWM, Skip or Ultrasonic Mode

• BOOT Voltage Monitor with Automatic Refresh

• Independent POK1 and POK2 Comparators

• Soft-Start with Pre-Biased Output and Soft-Stop

• Independent ENABLE

• High Efficiency - up to 97%

Ordering Information

• Very High Light Load Efficiency (Skip Mode)

• 5mW Quiescent Power Dissipation

TEMP.

PART

NUMBER

PART

MARKING

RANGE

(°C)

PKG.

DWG. #

PACKAGE

• Thermal Shutdown

ISL6236IRZA

(Note)

ISL6236 IRZ -40 to +100 32 Ld 5x5 QFN L32.5x5B

(Pb-free)

• Extremely Low Component Count

• Pb-Free Plus Anneal Available (RoHS Compliant)

ISL6236IRZA-T ISL6236 IRZ -40 to +100 32 Ld 5x5 QFN L32.5x5B

(Note)

(Pb-free)

(Tape and Reel)

Applications

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.

• Notebook and Sub-Notebook Computers

• PDAs and Mobile Communication Devices

• 3-Cell and 4-Cell Li+ Battery-Powered Devices

• DDR1, DDR2, and DDR3 Power Supplies

• Graphic Cards

• Game Consoles

• Telecommunications

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...36

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与ISL6236相关器件

型号	品牌	获取价格	描述	数据表
ISL6236A	INTERSIL	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
ISL6236A	RENESAS	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
ISL6236AIRZ	INTERSIL	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
ISL6236AIRZ-T	INTERSIL	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
ISL6236IRZA	INTERSIL	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
ISL6236IRZAR5281	INTERSIL	获取价格	PCN13024 â ASECL Reliability Qualification
ISL6236IRZA-T	INTERSIL	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
ISL6236IRZA-TKR5281	INTERSIL	获取价格	PCN13024 â ASECL Reliability Qualification
ISL6236IRZA-TR5281	RENESAS	获取价格	High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers; QFN32;
ISL6236IRZA-TR5281	INTERSIL	获取价格	PCN13024 â ASECL Reliability Qualification

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