参数资料
型号: IRU3034CS
厂商: International Rectifier
文件页数: 7/12页
文件大小: 0K
描述: IC CTRL/REG PWM SWITCH 8-SOIC
标准包装: 95
应用: 控制器,Intel Pentium?,II,P55C
输入电压: 12V
输出数: 1
输出电压: 2 V ~ 3.5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
产品目录页面: 1384 (CN2011-ZH PDF)
其它名称: *IRU3034CS
IRU3034-CS
IRU3034-CS-ND
IRU3034 & (PbF)
TYPICAL APPLICATION
5V to 3.3V with loss-less short circuit protection (Output UVLO detection)
12V
C8
C3
SS
V 12
Drv
CS- CS+
U1
Gnd
V FB V HYST
R6
C6
R7
R1
R3
C5
L2
V OUT
5V
L1
C1
C2
Q2
C4
R2
D1
R4
C7
R5
Figure 5 - The circuit in figure 5 is designed to provide loss-less output short detection by detecting the DC voltage
across the inductor and shutting down the MOSFET and entering HICCUP mode. Note that the current limit point
is a function of the inductor resistance and in this application with approximately 8m ? resistance the peak CL is
set at 10A. See application note on how to set the current limiting threshold.
Ref Desig
U1
Q2
D1
Description
Switcher IC
MOSFET
Schottky Diode
Qty
1
1
1
Part #
IRU3034CS (8-Pin SOIC)
IRL3303 (TO-263)
PBYR735 (Axial Thru Hole pkg)
Manuf
IR
IR
PBYR1035B (SMT, T-263 pkg)
Motorola
L2
Inductor
1
Core: T50-18, L=4 μ H
Micro Metal
Turns: 7T, 18 AWG
(core)
L1
R1,2
R3
R4
R5
R7
R6
C1
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Capacitor
1
2
1
1
1
1
1
1
L= μ H
10 ? , 5%, SMT
182K ? , 1%, SMT
1K ? , 1%, SMT
576 ? , 1%, SMT
3.83K ? , 1%, SMT
1K ? , 1%, SMT
470 μ F, Elect
C2
C3
C5
C6
C7
C8
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
1
1
1
1
2
1
6MV1000GX, 1000 μ F, 6.3V, Elect
1 μ F, Ceramic, SMT
10pF, Ceramic, SMT
0.1 μ F
6MV1000GX, 1000 μ F, 6.3V, Elect
0.047 μ F
Sanyo
Sanyo
Sanyo
www.irf.com
7
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