Datasheet > 电源电路 > 开关式稳压器或控制器> EL7556BCM

EL7556BCM

更新时间： 2024-11-05 22:50:59

品牌	Logo	应用领域
ELANTEC		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管局域网
页数	文件大小	规格书
13页	322K
描述
Integrated Adjustable 6 Amp Synchronous Switcher

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中文翻译

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技术参数
数据手册
替代型号

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EL7556BCM 技术参数

生命周期：	Transferred	包装说明：	SO-28
Reach Compliance Code：	unknown	风险等级：	5.71
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	5.5 V	最小输入电压：	4.5 V
标称输入电压：	5 V	JESD-30 代码：	R-PDSO-G28
功能数量：	1	端子数量：	28
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	9 A	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	1000 kHz
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子位置：	DUAL	Base Number Matches：	1

EL7556BCM 数据手册

EL7556BC

Integrated Adjustable 6 Amp Synchronous Switcher

Features

General Description

• EL7556C/EL7556AC Pin-

compatible

• Improved temperature and voltage

ranges

• 6A continuous load current

• Precision internal 1% reference

• 1.0V to 3.8V output voltage

• Internal power MOSFETs

• >90% efficiency

The EL7556BC is an adjustable synchronous DC:DC switching regu-

lator optimized for a 5V input and 1.0V-3.8V output. By combining

integrated NMOS power FETS with a fused-lead package, the

EL7556BC can supply up to 6A continuous output current without the

use of external power devices or discrete heat sinks, thereby minimiz-

ing design effort and overall system cost.

On-chip resistorless current sensing is used to achieve stable, highly

efficient, current-mode control. The EL7556BC also incorporates the

VCC2DET function to directly interface with the Intel P54 and P55

microprocessors. Depending on the state of VCC2DET, the output

voltage is internally preset to 3.5V or a user-adjustable voltage using

two external resistors. In both internal and external feedback modes

the active-high PWRGD output indicates when the regulator output is

within ±10% of the programmed voltage. An on-board sensor moni-

tors die temperature (OT) for over-temperature conditions and can be

connected directly to OUTEN to provide automatic thermal shutdown.

Adjustable oscillator frequency and slope compensation allow added

flexibility in overall system design.

• Synchronous switching

• Adjustable slope compensation

• Over-temperature indicator

• Pulse-by-pulse current limiting

• Operates up to 1MHz

• 1.5% typical output accuracy

• Adjustable oscillator with sync

• Remote enable/disable

• Intel P54- and P55-compatible

• VCC2DET interface

• Internal soft-start

The EL7556BC is available in a 28-pin SO package and is specified

for operation over the full -40°C to +85°C temperature range.

Applications

Connection Diagram

• PC motherboards

100W

150W

• Local high power CPU supplies

• 5V to 1.0V DC:DC conversion

• Portable electronics/instruments

• P54 and P55 regulators

FB1

CREF

FB2 28

CP 27

0.1µF

C 5

D4*

1µF

39pF

(Optional)

CSLOPE C2V 26

C8 220pF

20W

COSC

VDD

VIN

VSS 25

VHI 24

• GTL+ Bus power supply

C11

0.22µF

5.1W

C 6 39.2W

LX 23

0.1µF

VSSP

VIN

LX 22

V_OUT

1V*(1+R3/R4)

2.5µH

C12

1µF

LX 21

Ordering Information

V_IN

C10

1mF

660µF

VSSP

LX 20

Tape &

10 VSSP

11 VSSP

12 VSSP

VSSP 19

VSSP 18

TEST 17

Part No

EL7556BCM

Package

28-Pin SO

Reel

Outline #

MDP0027

1µF

EL7556BCM-T13

13”

Connect to VSSP for

external feedback

VCC2DET

PWRGD

14 OUTEN

OT 15

EL7556BC

C12 - 1µF

C3, C4, C5, C6, C7 C8 - ceramic

C5, C11 - ceramic or tantalum

C9 - Sprague 293D337X96R3 2X330µF

C10 - Sprague 293D337X96R3 3X330µF

L1 - Pulse Engineering, PE-53681

D1-D4: BAT54S fast diode

D4 Required for EL7556ACM Only

Manufactured under U.S. Patents No. 5,723,974 and No. 5,793,126

Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these

specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

12 3 4 5 6 7...13

中文翻译

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EL7556BCM 替代型号

型号	品牌	替代类型	描述	数据表
EL7556DCMZ	INTERSIL	功能相似	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556DCM	INTERSIL	功能相似	Integrated Adjustable 6 Amp Synchronous Switcher

与EL7556BCM相关器件

型号	品牌	获取价格	描述	数据表
EL7556BCM-T13	ELANTEC	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556BCM-T13	INTERSIL	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556CM	ELANTEC	获取价格	Switching Regulator, Current-mode, 9A, 140kHz Switching Freq-Max, PDSO28, SOIC-28
EL7556D	INTERSIL	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556DCM	INTERSIL	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556DCM-T13	INTERSIL	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556DCMZ	INTERSIL	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7556DCMZ-T13	INTERSIL	获取价格	Integrated Adjustable 6 Amp Synchronous Switcher
EL7558ACM	ELANTEC	获取价格	Switching Regulator, Current-mode, 8A, 1000kHz Switching Freq-Max, PDSO28, HSOP-28
EL7558B	INTERSIL	获取价格	Integrated Adjustable 8 Amp Synchronous Switcher

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