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| 型号： | IRU3034CSTR |
| 厂商： | International Rectifier |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC CNTRL PWM SYNC SWITCH 8-SOIC |
| 标准包装： | 2,500 |
| 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： | 带卷 (TR) |
| 产品目录页面： | 1384 (CN2011-ZH PDF) |
Data Sheet No. PD94148 revA
IRU3034 & (PbF)
8-PIN PWM SWITCHER CONTROLLER IC
WITH CURRENT LIMITING
FEATURES
8-Pin SOIC switching controller with
HICCUP current limiting reduces diode power
dissipation to less than 1% of normal operation
Soft-Start capacitor allows for smooth output
voltage ramp up
On-Board MOSFET Driver
Fastest transient response of any controller
method. (0 to 100% Duty Cycle in 100ns)
1% Internal Voltage Reference
Internal Under-Voltage Lockout protects MOSFET
during start-up
APPLICATIONS
Dual supply low voltage processor applications,
such as: P55C ? , CYRIX M2 ? , POWER PC ?
and AMD K6 ?
Simple 5V to 3.3V switcher for Pentium with AGP
or Pentium II ? applications
TYPICAL APPLICATION
DESCRIPTION
The IRU3034 IC provides a low cost switching controller
with true short circuit protection all in a compact 8-pin
surface mount package, providing a low cost switching
solution for dual supply processor applications that re-
quire switching regulator for the 3.3V supply such as
the applications with AGP on-board. Typically in these
applications, a dual supply regulator converts 5V to 3.3V
for I/O supply and a jumper programmable supply of
1.25V to 3.5V for Core supply. The IC uses an internal
regulator generated from the 12V supply to power the
controller as well as the 12V supply to drive the power
MOSFET, allowing a low cost N-channel MOSFET to be
used. The IC also includes an error comparator for fast
transient response, a precise voltage reference for set-
ting the output voltage as well as a direct drive of the
MOSFET for the minimum part count.
C8
SS
CS+
CS-
C6
Drv IRU3034 Gnd
12V
R1
V 12
V FB V HYST
C3
R3
C5
L2
R8
R6
R7
V OUT
5V
L1
Q2
C4
D1
R4
C7
C1
C2
R2
R5
Figure 1 - Typical application of IRU3034.
Notes: P55C, Pentium II are trademarks of Intel Corp. K5 & K6 are trademarks of AMD corp. Cyrix 6X86L, M1, M2 are trademarks of Cyrix
Corp. Power PC is trademark of IBM Corp.
PACKAGE ORDER INFORMATION
T A (°C)
Basic Device Leadfree Device
Package
Parts per
Parts per
T&R
Tube
Reel
Orientation
0 To 70
IRU3034CS
IRU3034CS(PbF)
8-Pin Plastic SOIC(S) 95
2500
see
Fig. A
www.irf.com
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRU3034PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING |
| IRU3037 | 制造商:IRF 制造商全称:International Rectifier 功能描述:8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037A | 制造商:IRF 制造商全称:International Rectifier 功能描述:8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037ACF | 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 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:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| IRU3037ACFPBF | 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 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:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
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