參數(shù)資料
型號(hào)： IRU3034
廠商： International Rectifier
英文描述： 8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING
中文描述： 8引腳的PWM開(kāi)關(guān)控制器芯片，限流
文件頁(yè)數(shù)： 6/12頁(yè)
文件大小： 159K
代理商： IRU3034
IRU3034 & (PbF)
6
www.irf.com
Figure 4 - The circuit in figure 4 is the application of the IRU3034 which is done using a dual layout with IRU3033 in
a switching mode only. This circuit can be used to generate a low cost 5V to 3.3V for either Pentium application
with AGP socket or in Pentium II applications where it is desirable to generate an accurate on-board 3.3V supply.
TYPICAL APPLICATION
5V to 3.3V for Pentium Application with AGP or Pentium II Application without ATX power supply
Switching mode Operation. (IRU3034 and IRU3033 Dual Layout)
R9
Ref Desig
U1
Q2
Description Qty
LDO/Switcher IC
MOSFET
Part #
IRU3034CS (8-Pin SOIC)
IRL3303 (TO-220)
IRL3103S (TO-263) (Note 1)
MBR1045CT (TO-220)
MBRB1545CT (TO-263) (Note1)
Core: T50-18, L=4
μ
H
Turns: 10T, 18 AWG
L=2
μ
H
22
, 5%, SMT 1206 size
Open for IRU3034, 10
for IRU3033
10
, 5%, SMT 1206 size
249K
, 1%, SMT 0805 size
1K
, 1%, SMT 0805 size
576
, 1%, SMT 0805 size
5m
, 5%, 2W
4.99K
, 1%, SMT 0805 size
4.7K
, 5% for IRU3034, Open for IRU3033
6MV1500GX, 1500
μ
F, 6.3V, Elect
1
μ
F, Ceramic, SMT 0805 size
470pF, Ceramic, SMT 0805 size
10pF, Ceramic, SMT 0805 size
4700pF for IRU3034, Open for IRU3033
6MV1500GX, 1500
μ
F, 6.3V, Elect
0.047
μ
F for IRU3034 , 0.1
μ
F for 3033
For MOSFET, 577002
For Schottky Diode, 577002
Manuf
IR
IR
1
1
D1
Schottky Diode
1
Motorola
Micro Metal
(core)
L2
Inductor
1
L1
R1
R9
R2
R3
R4
R5
R6
R7
R8
C1, 2
C3
C4
C5
C6
C7
C8
HS1
HS2
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Heat Sink
Heat Sink
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
Sanyo
Sanyo
Sanyo
Sanyo
Aavid
Aavid
Note:
For the applications where it is desirable to eliminate the heat sink, the IRL3103S for Q2 and MBR1545CT
for D2 in TO-263 packages with minimum of 1" square copper pad can be used.
V
OUT
5V
C1
L1
C3
Q2
C2
L2
R4
C7
D1
R2
C4
R5
R1
R3
C5
R8
R6
C6
R7
12V
C8
Drv
V
12
V
FB
V
HYST
Gnd
CS-/
V
FB2
U1
CS+/
Drv2
SS/
V
12
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IRU3034CS 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:30-TSSOP 包裝:帶卷 (TR)
IRU3034CSPBF 制造商:International Rectifier 功能描述:PWM CONTROLLER SMD 3034 SOIC8
IRU3034CSTR 功能描述:IC CNTRL PWM SYNC SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:30-TSSOP 包裝:帶卷 (TR)
IRU3034PBF 制造商:IRF 制造商全稱:International Rectifier 功能描述:8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING
IRU3037 制造商:IRF 制造商全稱:International Rectifier 功能描述:8-PIN SYNCHRONOUS PWM CONTROLLER
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