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参数资料
| 型号： | IRU3046CFTR |
| 厂商： | International Rectifier |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 24TSSOP |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 450kHz |
| 占空比： | 90% |
| 电源电压： | 5 V ~ 12 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 剪切带 (CT) |
| 产品目录页面： | 1384 (CN2011-ZH PDF) |
| 其它名称： | *IRU3046CFTR IRU3046CFCT |
Data Sheet No. PD94251
IRU3046
DUAL SYNCHRONOUS PWM CONTROLLER WITH
CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
PRELIMINARY DATA SHEET
FEATURES
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
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.
Graphic Card
Hard Disk Drive
Power supplies requiring multiple outputs
TYPICAL APPLICATION
12V
L1
D1
D2
5V
C12
L2
C11
C1
C2
C3
C4
V CL
VcH1
VcH2
C13
3.3V
C5
Vcc
VccLDO
V SEN33
HDrv1
LDrv1
Q2
Q3
C14
C15
L3
R5
V OUT1
C16
C6
Q1
V OUT3
R6
V OUT2
R1
C7
R2
C8
R3
Fb3
Rt
Sync
Comp1
U1
IRU3046
PGnd
V REF
Vp2
Fb1
Fb2
R7
R8
C9
R4
Comp2
HDrv2
Q4
C17
L4
R9
PGood
C10
PGood
SS
LDrv2
Gnd
Q5
C18
R10
Figure 1 - Typical application of IRU3046 configured as 2-phase converter with current sharing.
PACKAGE ORDER INFORMATION
Rev. 1.9
09/27/02
T A (°C)
0 To 70
DEVICE
IRU3046CF
PACKAGE
24-Pin Plastic TSSOP (F)
www.irf.com
FREQUENCY
200-400KHz
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 制造商全称:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CW | 制造商:IRF 制造商全称: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 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
| IRU3048 | 制造商:IRF 制造商全称:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER |
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