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參數(shù)資料
| 型號： | IRU3046CF |
| 廠商： | International Rectifier |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| 中文描述： | 雙同步PWM控制器，帶有均流電路和LDO控制器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 163K |
| 代理商： | IRU3046CF |
IRU3046
1
Rev. 1.9
09/27/02
www.irf.com
TYPICAL APPLICATION
DESCRIPTION
The IRU3046 IC combines a Dual synchronous Buck
controller and a linear regulator controller, providing a
cost-effective, high performance and flexible solution for
multi-output applications. The Dual synchronous con-
troller can be configured as 2-independent or 2-phase
controller. In 2-phase configuration, the IRU3046 provides
a programmable current sharing which is ideal when the
output power exceeds any single input power budget.
IRU3046 provides a separate adjustable output by driv-
ing a switch as a linear regulator. This device features
programmable switching frequency up to 400KHz per
phase, under-voltage lockout for all input supplies, an
external programmable soft-start function as well as out-
put under-voltage detection that latches off the device
when an output short is detected.
Dual Synchronous Controller in 24-Pin Package
with 180
8
out-of-phase operation
LDO Controller with Independent Bias Supply
Can be configured as 2-Independent or 2-Phase
PWM Controller
Programmable Current Sharing in 2-Phase Configu-
ration
Flexible, Same or Separate Supply Operation
Operation from 4V to 25V Input
Programmable Switching Frequency up to 400KHz
Soft-Start controls all outputs
Precision Reference Voltage Available
500mA Peak Output Drive Capability
Short Circuit Protection for all outputs
Power Good Output
Synchronizable with External Clock
APPLICATIONS
Dual-Phase Power Supply
DDR Memory Source Sink Vtt Application
FEATURES
DUAL SYNCHRONOUS PWM CONTROLLER WITH
CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
PRELIMINARY DATA SHEET
Data Sheet No. PD94251
Figure 1 - Typical application of IRU3046 configured as 2-phase converter with current sharing.
Graphic Card
Hard Disk Drive
Power supplies requiring multiple outputs
PACKAGE ORDER INFORMATION
T
A
(°C)
0 To 70 IRU3046CF 24-Pin Plastic TSSOP (F) 200-400KHz
DEVICE PACKAGE FREQUENCY
12V
5V
V
OUT2
PGood
C1
C2
L1
C6
R2
Q5
C18
R10
L4
Q4
Q1
C5
C7
3.3V
U1
V
OUT1
R8
C16
L3
C17
R5
R9
R7
C10
R1
R4
C9
R3
C8
C3
C4
C13
D1
D2
C11
PGnd
V
REF
V
CL
V
OUT3
LDrv1
HDrv1
Fb1
Fb2
Vp2
LDrv2
HDrv2
VcH1
VcH2
Vcc
Gnd
Comp2
Fb3
Rt
Comp1
SS
PGood
IRU3046
L2
C12
Q3
C15
R6
Q2
C14
Sync
V
SEN33
VccLDO
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| IRU3047 | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRU3046CFTR | 功能描述:IC REG CTRLR BUCK PWM VM 24TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:75 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.3 V ~ 13.5 V 降壓:是 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:0°C ~ 70°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:管件 產(chǎn)品目錄頁面:1051 (CN2011-ZH PDF) 其它名稱:296-2543-5 |
| IRU3046CFTRPBF | 制造商:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CW | 制造商:IRF 制造商全稱:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CWTR | 功能描述:IC REG CTRLR BUCK PWM VM 20-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 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:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
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