A8450KLB-T

更新时间： 2024-01-21 20:11:48

品牌	Logo	应用领域
急速微 - ALLEGRO		稳压器
页数	文件大小	规格书
15页	547K
描述
Automotive Analog Circuit, PDSO24

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技术参数
数据手册

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A8450KLB-T 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.84	特性阻抗：	50 Ω
最大输入功率 (CW)：	43.98 dBm	最大工作频率：	4000 MHz
最小工作频率：		最高工作温度：	125 °C
最低工作温度：	-55 °C	射频/微波设备类型：	FIXED ATTENUATOR
最大电压驻波比：	1.35	Base Number Matches：	1

A8450KLB-T 数据手册

A8450

Automotive Multioutput Voltage Regulator

Load Transients Diagrams

V_IN= 12 V; I_LOAD= 100 mA; T_A= 25°C; ac-coupled; C1, C2, C3 and C4 = 1 µF

I_LOAD

3.3 V Regulator

90%

10%

t_RISE

t (0.2 µs/Div.)

t (50 µs/Div.)

V5D Regulator

Adjustable Regulator, at 1.8 V*

t (50 µs/Div.)

*For the adjustable regulator, the transient load response

is improved as the voltage is reduced. This is due to the

V5A Regulator

ability of the regulator to provide more base drive (V

)

ADJBD

because of more available voltage. When the adjustable

regulator approaches 3.3 V, its transient load response is

equivalent to the response of the V33 regulator.

For all regulators, load transients can be improved by

increasing the output capacitance (C1, C2, C3, and C4).

In order to keep ESR down it is best to use ceramic type

capacitors. However, large values in ceramic type capacitors

are either not available or very expensive. If larger values are

needed, above 22 µF, electrolytic capacitors with low ESR

ratings can be used. Performance can be improved further

by adding a 1 µF ceramic in parallel with the electrolytic.

t (50 µs/Div.)

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

A8450KLB-DS, Rev. 1

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

1...3 4 567 8 9...15

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