Datasheet > IPM6220EVAL1

IPM6220EVAL1

更新时间： 2024-01-03 12:21:53

品牌	Logo	应用领域
英特矽尔 - INTERSIL		控制器便携式
页数	文件大小	规格书
14页	432K
描述
Advanced Triple PWM Only Mode and Dual Linear Power Controller for Portable Applications

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IPM6220EVAL1 数据手册

ISL6235

Data Sheet

J une 2001

FN9029

Advanced Triple PWM Only Mode and

Dual Linear Power Controller for Portable

Applications

Features

• PWM Only Mode for Reduced Noise at Light Loads

• Provides Five Regulated Voltages

- +5V ALWAYS

- +3.3V ALWAYS

- +5V Main

The ISL6235 provides a highly integrated power control and

protection solution for five output voltages required in high-

performance notebook PC applications. The IC integrates

three fixed frequency pulse-width-modulation (PWM)

controllers and two linear regulators along with monitoring

and protection circuitry into a single 24 lead SSOP package.

- +3.3V Main

- +12V

• High Efficiency Over Wide Line and Load Range

- Synchronous Buck Converters on Main Outputs

The two PWM controllers that regulate the system main 5V

and 3.3V voltages are implemented with synchronous-

rectified buck converters. Synchronous rectification insures

high efficiency over a wide range of input voltage and load

variation. Efficiency is further enhanced by using the lower

• No Current-Sense Resistor Required

- Uses MOSFET’s r

DS(ON)

- Optional Current-Sense Resistor for More Precision

• Operates Directly From Battery 5.6 to 24V Input

• Input Undervoltage Lock-Out (UVLO)

MOSFET’s r

as the current sense element. Input

DS(ON)

voltage feed-forward ramp modulation, current-mode

control, and internal feed-back compensation provide fast

and stable handling of input voltage load transients

encountered in advanced portable computer chip sets.

• Excellent Dynamic Response

- Voltage Feed-Forward and Current-Mode Control

The third PWM controller is a boost converter that regulates

a resistor selectable output voltage of nominally 12V.

• Monitors Output Voltages

• Synchronous Converters Operate Out of Phase

Two internal linear regulators provide +5V ALWAYS and

+3.3V ALWAYS low current outputs required by the

notebook system controller.

• Separate Shut-Down Pins for Advanced Configuration and

Power Interface (ACPI) Compatibility

• 300kHz Fixed Switching Frequency on Main Outputs

• Thermal Shut-Down Protection

Ordering Information

TEMP.

PKG.

NO.

PART NUMBER RANGE ( C)

PACKAGE

Applications

ISL6235CA

-10 to 85

24 Ld SSOP

M24.15

•

Mobile PCs

IPM6220EVAL1

Evaluation Board

• Hand-Held Portable Instruments

• LCD PCs

Pinout

ISL6235 (SSOP)

• Cable Modems

• DSL Modems

TOP VIEW

VBATT

24 BOOT1

23 UGATE1

22 PHASE1

21 ISEN1

• Set Top Box

3.3V ALWAYS

BOOT2

Related Literature

• Application Note AN9915 (IPM6220)

UGATE2

PHASE2

5V ALWAYS

LGATE2

PGND2

20 LGATE1

19 PGND1

18 VSEN1

17 SDWN1

16 GATE3

15 VSEN3

14 GND

ISEN2

VSEN2 10

SDWN2 11

PGOOD 12

13 SDWNALL

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 trademark of Intersil Americas Inc.

12 3 4 5 6 7...14

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