参数资料
型号: A4447SLJTR-T
厂商: Allegro Microsystems Inc
文件页数: 2/12页
文件大小: 0K
描述: IC REG BUCK ADJ 2A 8SOIC
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 24 V
输入电压: 8 V ~ 50 V
PWM 型: 电流模式
电流 - 输出: 2A
同步整流器:
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm Width)裸露焊盘
包装: 标准包装
供应商设备封装: 8-SOIC-EP
产品目录页面: 1141 (CN2011-ZH PDF)
其它名称: 620-1329-6
A4447
Absolute Maximum Ratings
High Voltage Step Down Regulator
Characteristic
VIN Supply Voltage
VBIAS Input Voltage
SW Switching Voltage
ENB Input Voltage Range
Operating Ambient Temperature Range
Junction Temperature
Storage Temperature
Symbol
V IN
V BIAS
V S
V ENB
T A
T J (max)
T stg
Conditions
Min.
–0.3
–1
–0.3
–20
–55
Typ.
Max.
50
7
7
85
150
150
Units
V
V
V
V
°C
°C
°C
*Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed
the specified current ratings, or a junction temperature, T J , of 150°C.
Thermal Characteristics* may require derating at maximum conditions, see application section for optimization
Characteristic
Package Thermal Resistance
(Junction to Ambient)
Package Thermal Resistance
(Junction to Pad)
Symbol
R θ JA
R θ JP
Test Conditions*
On 4-layer PCB based on JEDEC standard
On 2-layer generic test PCB with 0.8 in. 2 of copper area each side
Value
35
62
2
Unit
oC/W
oC/W
oC/W
*Additional thermal information available on the Allegro ? website.
Ordering Information
Use the following complete part numbers when ordering:
Part Number
A4447SLJTR-T
Packing
13-in. reel, 3000 pieces/reel
Description
LJ package, SOIC surface mount with
exposed thermal pad; leadframe plating
100% matte tin.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2
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