Datasheet > 电源电路 > 开关式稳压器或控制器> SP7652ERL/TR

SP7652ERL/TR

更新时间： 2024-01-21 19:04:47

品牌	Logo	应用领域
西伯斯 - SIPEX		稳压器
页数	文件大小	规格书
16页	1269K
描述
Wide Input Voltage Range 6A, 600kHz, Buck Regulator

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中文翻译

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技术参数
数据手册

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SP7652ERL/TR 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	7 X 4 MM, LEAD FREE, DFN-26	Reach Compliance Code：	unknown
风险等级：	5.73	其他特性：	ALSO OPERATES WITH 3V TO 28V SUPPLY
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	VOLTAGE-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-N26	JESD-609代码：	e3
长度：	7 mm	湿度敏感等级：	3
功能数量：	1	端子数量：	26
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	10 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装等效代码：	SOLCC26,.16,20
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1 mm	子类别：	Switching Regulator or Controllers
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	720 kHz	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	4 mm
Base Number Matches：	1

SP7652ERL/TR 数据手册

APPLICATIONS INFORMATION

Inductor Selection

There are many factors to consider in

selecting the inductor including core

material, inductance vs. frequency, cur-

rent handling capability, efﬁciency, size

and EMI. In a typical SP7652 circuit, the

inductor is chosen primarily by operat-

ing frequency, saturation current and DC

resistance. Increasing the inductor value

will decrease output voltage ripple, but

degrade transient response. Low induc-

tor values provide the smallest size, but

cause large ripple currents, poor efﬁciency

and require more output capacitance to

smooth out the larger ripple current. The

inductor must be able to handle the peak

current at the switching frequency without

saturating, and the copper resistance in

the winding should be kept as low as pos-

sible to minimize resistive power loss. A

good compromise between size, loss and

cost is to set the inductor ripple current

to be within 20% to 40% of the maximum

output current.

Ipp

IpEak = iOut(max) +

and provide low core loss at the high switch-

ingfrequency.Lowcostpowdered-ironcores

are inappropriate for 900kHz operation.

Gappedferriteinductorsarewidelyavailable

for consideration. Select devices that have

operating data shown up to ꢀMHz. Ferrite

materials, on the other hand, are more

expensive and have an abrupt saturation

characteristic with the inductance dropping

sharply when the peak design current is

exceeded. Nevertheless, they are preferred

at high switching frequencies because they

present very low core loss and the design

only needs to prevent saturation. In general,

ferrite or molypermalloy materials are bet-

ter choice for all but the most cost sensitive

applications.

Optimizing Efﬁciency

Thepowerdissipatedintheinductorisequal

to the sum of the core and copper losses.

To minimize copper losses, the winding

resistance needs to be minimized, but this

usually comes at the expense of a larger

inductor.Corelosseshaveamoresigniﬁcant

contribution at low output current where the

copper losses are at a minimum, and can

typically be neglected at higher output cur-

rents where the copper losses dominate.

Core loss information is usually available

from the magnetics vendor. Proper inductor

selection can affect the resulting power sup-

ply efﬁciency by more than 15-20%!

The switching frequency and the inductor

operatingpointdeterminetheinductorvalue

as follows:

VOut(Vin(max) - VOut)

Vin(max)FS•KR•iOut(max)

where:

Fs = switching frequency

KR = ratio of the AC inductor ripple current

to the maximum output current

The peak to peak inductor ripple current

is:

VOut (Vin(max) - VOut)

The copper loss in the inductor can be cal-

culated using the following equation:

Ipp=

Vin(max)•Fs•L

Pl(cu) = i²l(RmS) RWinDing

Oncetherequiredinductorvalueisselected,

theproperselectionofcorematerialisbased

on peak inductor current and efﬁciency re-

quirements. The core must be large enough

not to saturate at the peak inductor current

where I_L(RMS)is the RMS inductor current

that can be calculated as follows:

Ipp

ꢀ

Il(RmS) = iOut(max) 1+

(_IOut(max))

ꢀ

Rev F: ꢀꢀ/0ꢀ/06

SP7652 Wide Input Voltage Range 6A, 600kHz, Buck Regulator

1...4 5 678 9 10...16

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与SP7652ERL/TR相关器件

型号	品牌	获取价格	描述	数据表
SP7652ER-L/TR	SIPEX	获取价格	Wide Input Voltage Range 6A, 600kHz, Buck Regulator
SP7652EU	SIPEX	获取价格	Evaluation Board Manual
SP7653	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz,Buck Regulator
SP7653_06	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz, Buck Regulator
SP7653ER	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz,Buck Regulator
SP7653ER/TR	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz,Buck Regulator
SP7653ERL	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz, Buck Regulator
SP7653ER-L	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz,Buck Regulator
SP7653ERL/TR	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz, Buck Regulator
SP7653ER-L/TR	SIPEX	获取价格	Wide Input Voltage Range, 1.3MHz,Buck Regulator

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