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参数资料
| 型号： | ISL6341IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 10-TDFN |
| 标准包装： | 6,000 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 85% |
| 电源电压： | 4.5 V ~ 14.4 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： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
?
ISL6341, ISL6341A, ISL6341B, ISL6341C
Data Sheet
December 2, 2008
FN6538.2
5V or 12V Single Synchronous Buck
Pulse-Width Modulation (PWM) Controller
The ISL6341, ISL6341A, ISL6341B, ISL6341C makes
simple work out of implementing a complete control and
protection scheme for a DC/DC stepdown converter driving
N-Channel MOSFETs in a synchronous buck topology. Since
it can work with either 5V or 12V supplies, this one family of
IC’s can be used in a wide variety of applications within a
system. It integrates the control, gate drivers, output
adjustment, monitoring and protection functions into a single
10 Ld Thin DFN package.
The ISL6341, ISL6341A, ISL6341B, ISL6341C (hereafter
referred to as “ISL6341x”, except as needed) provides single
feedback loop, voltage-mode control with fast transient
response. The output voltage can be precisely regulated to as
low as 0.8V, with a maximum tolerance of ±0.8%
over-temperature and line voltage variations. A fixed frequency
oscillator and wide duty cycle range reduces design complexity,
while balancing typical application cost and efficiency. The
frequency, duty cycle and OCP response are the only
differences among the ISL6341x versions . See Table 1.
Protection from overcurrent conditions is provided by
monitoring the r DS(ON) of the lower MOSFET to inhibit PWM
implementation and improves efficiency by eliminating the
need for a current sense resistor. The output voltage is also
monitored for undervoltage and overvoltage protection, in
addition to monitoring for a PGOOD output.
Ordering Information
Features
? Operates from +4.5V to 14.4V Supply Voltage (for Bias)
- 1.5V to 12V V IN Input Range (Up to 20V is Possible with
Restrictions; see “Input Voltage Considerations” on
page 12)
- 0.8V to ~V IN Output Range (Duty Cycle Limited)
- Integrated Gate Drivers; LGATE Uses V CC (5V to 12V);
UGATE Uses External Boot Diode to (5V to 12V)
- 0.8V Internal Reference; ±0.8% Tolerance
? Simple Single-Loop Control Design
- Traditional Dual Edge Modulator
- Voltage-Mode PWM Control
- Drives N-Channel MOSFETs
? Fast Transient Response
- High-Bandwidth Error Amplifier
- 0% to 85% Max Duty Cycle for ISL6341, ISL6341C
- 0% to 75% Max Duty Cycle for ISL6341A, ISL6341B
? Lossless, Programmable Overcurrent Protection
- Uses Lower MOSFET’s r DS(ON)
- Latch off mode (ISL6341, ISL6341B)
- Infinite Retry (Hiccup) Mode (ISL6341A)
- Infinite Retry (Hiccup) Mode; no UVP (ISL6341C)
? Output Voltage Monitoring
- Undervoltage and Overvoltage Shutdown
- PGOOD Output
? Small Converter Size in 10 Ld 3x3 Thin DFN
- 300kHz Fixed Oscillator (ISL6341, ISL6341C)
- 600kHz Fixed Oscillator (ISL6341A, ISL6341B)
PART NUMBER
(Note)
PART TEMP.
MARKING RANGE (°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
- Fixed Internal Soft-Start, Capable into a Pre-biased
Load
ISL6341ACRZ*
ISL6341BCRZ*
ISL6341CCRZ*
ISL6341CRZ*
ISL6341AIRZ*
ISL6341BIRZ*
ISL6341CIRZ*
41AC
41BC
41CC
341C
41AI
41BI
41CI
0 to +70
0 to +70
0 to +70
0 to +70
-40 to +85
-40 to +85
-40 to +85
10 Ld 3x3 TDFN L10.3x3B
10 Ld 3x3 TDFN L10.3x3B
10 Ld 3x3 TDFN L10.3x3B
10 Ld 3x3 TDFN L10.3x3B
10 Ld 3x3 TDFN L10.3x3B
10 Ld 3x3 TDFN L10.3x3B
10 Ld 3x3 TDFN L10.3x3B
- Enable/Shutdown Function on COMP/EN Pin
? Pb-Free (RoHS Compliant)
Applications
? Power Supplies for Microprocessors or Peripherals
- PCs, Servers, Memory Supplies
- DSP and Core Communications Processor Supplies
ISL6341IRZ* 6341 -40 to +85 10 Ld 3x3 TDFN L10.3x3B
ISL6341EVAL1Z Evaluation Board
NOTE: These Intersil Pb-free plastic packaged products employ special
Pb-free material sets, molding compounds/die attach materials, and
100% matte tin plate plus anneal (e3 termination finish, which is RoHS
compliant and compatible with both SnPb and Pb-free soldering
operations). Intersil Pb-free products are MSL classified at Pb-free peak
reflow temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
? Subsystem Power Supplies
- PCI, AGP; Graphics Cards; Digital TV
- SSTL-2 and DDR/DDR2/DDR3 SDRAM Bus
Termination Supply
? Cable Modems, Set-Top Boxes, and DSL Modems
? Industrial Power Supplies; General Purpose Supplies
? 5V or 12V-Input DC/DC Regulators
? Low-Voltage Distributed Power Supplies; Point of Load
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright ? Intersil Americas Inc. 2007, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6353CRTZ | 功能描述:电流型 PWM 控制器 VR12 MEMORY CNTRLR 3 PHS 2 INT 5V DRVRS RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6353CRTZ-T | 功能描述:电流型 PWM 控制器 VR12 MEMORY CNTRLR 3 PHS 2 INT 5V DRVRS RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6353CRTZ-TS2568 | 制造商:Intersil Corporation 功能描述:INTEL, ISL6353CRTZ-T W/BARCODE LABELS, 12 MONTH D/C RESTRICT - Tape and Reel |
| ISL6353CRZ | 制造商:Intersil 功能描述:Multiphase PWM Regulator for VR12 DDR Memory Systems |
| ISL6353IRTZ | 功能描述:电流型 PWM 控制器 VR12 MEMORY CNTRLR 3 PHS 2 INT 5V DRVRS RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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