参数资料
型号: A8450KLBTR-T
厂商: Allegro Microsystems Inc
文件页数: 15/17页
文件大小: 546K
描述: IC REG QD BUCK/LINEAR 24-SOIC
标准包装: 3,000
拓扑: 降压(降压)(1),线性(LDO)(4)
功能: 车载
输出数: 4
电压/电流 - 输出 1: 5.7V,1.2A
电压/电流 - 输出 2: 5V,200mA
电压/电流 - 输出 3: 5V,200mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 6 V ~ 45 V
工作温度: -40°C ~ 135°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SOIC W
包装: 带卷 (TR)
Automotive Multioutput Voltage Regulator
A8450
15
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Terminal List Table
Name
Description
Number
VBB
Supply input
1
CP2
Charge pump capacitor, positive side
2
CP1
Charge pump capacitor, negative side
3
VCP
Charge pump output used to drive N-channel buck converter
transistor
4
VREG11
Internal reference
5
GND
Power ground
6
GND
Power ground
7
ENB
Logic control
8
CPOR
Connection for POR adjustment
9
CLADJ
Current limit for adjustable regulator
10
VADJBD
Base drive for adjustable regulator pass transistor
11
FB
Feedback for adjustable regulator
12
V5A
5 V analog regulator output
13
NPOR
Power on Reset logic output
14
NFAULT
Diagnostic output; open drain; low during fault condition
15
V5D
5 V digital regulator output
16
VREG
DC-to-DC converter supply output
17
GND
Power ground
18
GND
Power ground
19
CL33
Current limit for 3.3 V regulator
20
V33BD
Base drive for 3.3 V regulator pass transistor
21
V33
3.3 V regulator output
22
ENBAT
High voltage logic control
23
LX
Buck converter switching regulator output
24
Pin-Out Diagram
 3
 4
 5
 6
 7
 8
 2
 1
22
21
20
19
18
17
23
24
10
 9
11
15
14
13
16
12
VBB
CP2
CP1
VCP
VREG11
GND
GND
ENB
LX
ENBAT
V33
V33BD
CL33
GND
GND
VREG
CPOR
CLADJ
VADJBD
FB
V5D
NFAULT
NPOR
V5A
1.2 V to
3.3 V
Lin Reg
Control
5 V
Dig/Anlg
Lin Reg
5 V Reg
Track
Control
3.3 V
Lin Reg
Control
Charge
Pump
Buck
Converter
Soft
Start
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