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參數(shù)資料
| 型號： | IRU3034PBF |
| 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開關控制器芯片，限流 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 159K |
| 代理商： | IRU3034PBF |
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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相關代理商/技術參數(shù) |
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| 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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| IRU3037ACF | 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IRU3037ACFPBF | 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IRU3037ACFTRPBF | 功能描述:開關變換器、穩(wěn)壓器與控制器 8 PWM 200 KHZ 500mA Synch CTRL RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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