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参数资料
| 型号： | IRU3039CHTR |
| 厂商： | International Rectifier |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 20-MLPQ |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 400kHz |
| 占空比： | 88% |
| 电源电压： | 4.75 V ~ 20 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： | 20-MLPQ |
| 包装： | 剪切带 (CT) |
| 其它名称： | *IRU3039CHTR IRU3039CHTRCT |
Data Sheet No. PD94649 revB
IRU3039(PbF)
SYNCHRONOUS PWM CONTROLLER
FEATURES
Current Limit using Lower MOSFET Sensing
WITH OVER CURRENT PROTECTION
DESCRIPTION
The IRU3039 controller IC is designed to provide a syn-
Using the 6V internal regulator for charge pump
circuit allows single supply operation up to 18V
Programmable Switching Frequency up to 400KHz
Soft-Start Function
0.8V Precision Reference Voltage Available
Uncommitted Error Amplifier Available for DDR
Voltage Tracking Applications
Stable with Ceramic Capacitor
APPLICATIONS
DDR Memory V DDQ /V TT Applications
Graphic Card
Hard Disk Drive
Netcom on-board DC to DC regulator application
Output voltage as low as 0.8V
Low Cost On-Board DC to DC
TYPICAL APPLICATION
D1
chronous Buck regulator and is targeted for applications
where the cost and size is critical. The IRU3039 oper-
ates with a single input supply up to 18V. The output
voltage can be programmed as low as 0.8V for low volt-
age applications. Selectable current limit is provided to
tailor to external MOSFET’s on-resistance for optimum
cost and performance. The IRU3039 features an uncom-
mitted error amplifier for tracking output voltage and is
capable of sourcing or sinking current for applications
such as DDR bus termination.
This device features a programmable switching frequency
set from 200KHz to 400KHz, under-voltage lockout for
both Vcc and Vc supplies, an external programmable
soft-start function as well as output under-voltage detec-
tion that latches off the device when an output short is
detected.
18V
L1
SS / SD
C3
1uF
C7
0.1uF
C9
1uF
Vcc V OUT2
Vc
U1 HDrv
IRU3039
V P OCSet
V REF
Rt LDrv
Comp
R2
5.76K
C4
1uF
D2
C5
0.1uF
Q1
IRF7466
Q2
IRF7458
1uH
C2
3x 15uF
25V
L2
4.7uH
C1
15uF
3.3V @ 8A
C6
2x 330uF
40m ?
C11
Optional
C8
5600pF
R1
14K
Gnd
PGnd
Fb
R4
1K
R3
3.16K
Figure 1 - Typical application of IRU3039.
PACKAGE ORDER INFORMATION
Basic Part (Non-Lead Free)
Leadfree Part
T A (°C)
DEVICE
PACKAGE
T A (°C)
DEVICE
PACKAGE
0 To 70
0 To 70
IRU3039CH 20-Pin MLPQ 5x5 (H)
IRU3039CHTR 20-Pin MLPQ 5x5 (H)
0 To 70
0 To 70
IRU3039CHPbF 20-Pin MLPQ 5x5 (H)
IRU3039CHTRPbF 20-Pin MLPQ 5x5 (H)
www.irf.com
1
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| IRU3046 | 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 |
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| IRU3046CFTR | 功能描述:IC REG CTRLR BUCK PWM VM 24TSSOP 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:75 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.3 V ~ 13.5 V 降压:是 升压:是 回扫:是 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:8-SOIC（0.154"，3.90mm 宽） 包装:管件 产品目录页面:1051 (CN2011-ZH PDF) 其它名称: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 制造商全称:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
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