Datasheet > A8586KLJTR-T-1

A8586KLJTR-T-1

更新时间： 2024-01-27 09:47:13

品牌	Logo	应用领域
急速微 - ALLEGRO		开关光电二极管输出元件
页数	文件大小	规格书
19页	803K
描述
Switching Regulator, Current-mode, 2400kHz Switching Freq-Max, PDSO8, SOIC-8

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技术参数
数据手册

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A8586KLJTR-T-1 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	HLSOP,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.73	其他特性：	OUTPUT VOLTAGE RANGE FROM 0.8 V TO 30 V
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：	36 V
最小输入电压：	3.8 V	标称输入电压：	12 V
JESD-30 代码：	R-PDSO-G8	长度：	4.9 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HLSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
座面最大高度：	1.7 mm	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	2400 kHz
温度等级：	AUTOMOTIVE	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3.9 mm
Base Number Matches：	1

A8586KLJTR-T-1 数据手册

A8586, A8586-1, A8586-2

Wide Input Voltage, Adjustable Frequency,

3.5 Amp Buck Regulator

FEATURES AND BENEFITS

• Automotive AEC-Q100 qualified

• Supply voltage from 3.8 to 36 V

DESCRIPTION

TheA8586 is a high frequency step-down switching regulator

withanintegratedhigh-sidepowerMOSFET.Itprovidesup3.5

Aoutputcurrent.TheA8586canachievefasttransientresponse

• Output voltage adjustable from 0.8 to 30 V

• Maximized duty cycle for low dropout operation

• Low 30 μA operational quiescent current

• 150 mΩ integrated MOSFET switch

• Programmable switching frequency up to 4 MHz

• Improved EMC with frequency dithering (A8586 and

A8586-2) and controlled switch node rise and fall times

• Ceramic capacitor stable

usingcurrent-modecontrolandsimpleexternalcompensation.

The wide input range of 3.8 to 36 V makes theA8586 suitable

for a wide range of step-down applications, including those in

an automotive input environment. Battery-driven applications

benefit from the low 30 μA operational quiescent current.

TheA8586 maintains high efficiency across a wide load range

by the use of pulse-frequency modulation (PFM) as the load

reduces. This in turn reduces switching and gate driver losses

at light load. A8586-1 and A8586-2 are options that disable

the PFM function.A8586-1 also disables the dithering feature.

These can be useful when low output ripple and minimum

output capacitance is required.

• Internal soft-start

• Overcurrent protection

APPLICATIONS

• High-Voltage Power

Conversion

• Distributed Power

Systems

Frequency foldback helps to prevent inductor current runaway

during startup and provides enhanced dropout performance.

Extensive protection features of the A8586 include pulse-by-

pulsecurrentlimit,hiccupmodeshort-circuitprotection,open/

shortfreewheelingdiodeprotection,BOOTopen/shortvoltage

protection, VIN undervoltage lockout, and thermal shutdown.

• Automotive Systems

• Industrial Power System

• Battery-Powered Systems

PACKAGES:

10-Pin DFN with Exposed

Thermal Pad (suffix EJ)

8-Pin SOIC with Exposed

Thermal Pad (suffix LJ)

The A8586 and A8586-2 are designed to aid in EMC/EMI

design by including frequency dithering, soft freewheel diode

turn-off, and well controlled switch node slew rates. A4 MHz

oscillator allows the A8586 to switch outside EMI sensitive

frequencies bands such as the AM band or ADSL bands.

TheA8586isavailableinindustry-standardDFN-10orSOIC-8

packages.

Not to scale

C_BST

L_O

BST

VOUT

VIN

Dither

Part

PFM

Operation

VIN

Feature

A8586

A8586-1

A8586-2

Yes

R_FB1

COMP

C_IN

C_Z

C_OUT

Yes

C_P

Optional

R_FB2

R_FREQ

A8586 Simpliﬁed Schematic

A8586-DS, Rev. 4

January 17, 2017

12 3 4 5 6 7...19

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与A8586KLJTR-T-1相关器件

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A-859T	MOLEX	Avikrimp™ Snap Plug, for 18-22 AWG Wire, Myla	获取价格

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