Datasheet > S-8541C60FN-IGBT2S

S-8541C60FN-IGBT2S

更新时间： 2024-11-07 00:25:11

品牌	Logo	应用领域
精工 - SII		开关
页数	文件大小	规格书
36页	2114K
描述
SWITCHABLE SWITCHING REGULATOR CONTROLLER

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S-8540/8541 Series

STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM

SWITCHABLE SWITCHING REGULATOR CONTROLLER

www.sii-ic.com

Rev.4.0_01

The S-8540/8541 Series is a family of CMOS step-down switching regulator controllers with PWM control (S-

8540 Series) and PWM/PFM switchover control (S-8541 Series). These devices consist of a reference voltage

source, oscillation circuit, an error amplifier, phase compensation circuit, PWM control circuit, current limit

circuit. A high efficiency and large current switching regulator is realized with the help of small external

components due to the high oscillation frequency, 300 kHz and 600 kHz.

The S-8540 Series provides low-ripple voltage, high efficiency, and excellent transient characteristics which

come from the PMW control circuit capable of varying the duty ratio linearly from 0 to 100%, the optimized error

amplifier, and the phase compensation circuit.

The S-8541 Series operates under PWM control when the duty ratio is 29% or higher and operates under PFM

control when the duty ratio is less than 29% to ensure high efficiency over all load range.

These controllers serve as ideal main power supply units for portable devices due to the high oscillation

frequencies together with the small 8-Pin MSOP package.

 Features

600 kHz (A, B types)

300 kHz (C, D types)

• Oscillation frequency

1.5 to 6.0 V, selectable in 0.1V steps (A, C types)

2.0%

• Output voltage

• Output voltage precision

• Feed back type for output voltage (FB)

• External components:

• Built-in PWM/PFM switchover control

circuit (S-8541 series)

a transistor, a coil, a diode, and capacitors

Duty ratio: 29% (PFM control)

29 to 100% (PWM control)

Current is set by an external resistor R_SENSE

Time is set by a capacitor C_SSand a resistor R_SS.

• Current limit circuit

• Soft-start

• Shutdown function

• Lead-free, halogen-free^*1

*1. Refer to “ Product Name Structure” for details.

 Applications

• Power supplies for PDAs, electric organizers, and portable devices.

• Power supplies for audio equipment such as portable CD players and headphone stereos.

• Main or sub Power supplies for notebook computers and peripheral equipment.

 Package

• 8-Pin MSOP

12 3 4 5 6 7...36

中文翻译

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与S-8541C60FN-IGBT2S相关器件

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S-8541C60FN-IGKT2G	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541C60FN-IGKT2S	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541C60FN-IGST2G	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541C60FN-IGST2S	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541D00FN-IMET2G	SII	获取价格	STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541D00FN-IMET2z	SII	获取价格	STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541D15FN-IGBT2G	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541D15FN-IGBT2S	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8541D15FN-IGKT2G	SII	获取价格	SWITCHABLE SWITCHING REGULATOR CONTROLLER
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