- 您现在的位置：买卖IC网 > PDF目录20606 > ISL8112IRZ-T (Intersil)IC REG DL BCK/LINEAR SYNC 32-QFN PDF资料下载
参数资料
| 型号： | ISL8112IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/27页 |
| 文件大小： | 0K |
| 描述： | IC REG DL BCK/LINEAR SYNC 32-QFN |
| 标准包装： | 6,000 |
| 拓扑： | 降压（降压）同步（1），线性（LDO）（1） |
| 功能： | 任何功能 |
| 输出数： | 2 |
| 频率 - 开关： | 可调式 |
| 电压/电流 - 输出 1： | 控制器 |
| 电压/电流 - 输出 2： | 0.7 V ~ 4.5 V，200mA |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 无 |
| 电源电压： | 4.5 V ~ 25 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN（5x5） |
| 包装： | 带卷 (TR) |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
?
ISL8112
Data Sheet
August 10, 2010
FN6396.1
High Light-Load Efficiency, Dual-Output,
Main Power Supply Controllers
ISL8112 is a dual-output Synchronous Buck controller with 2A
integrated driver. It features high light load efficiency which is
especially preferred in systems concerned with high efficiency
in wide load range, like the battery powered system. ISL8112
includes two constant on-time PWM controllers. Either of the
two outputs can operate in output fixed mode or adjustable
mode. In fixed mode, one output can be 5V or 3.3V and the
other can output 1.5V or 1.05V. In output adjustable mode,
one output can be 0.7V to 5.5V, and the other output can
range from 0V to 2.5V (sensing output voltage directly) or up
to 5V (using resistor divider voltage for voltage sensing). This
device also features a linear regulator providing 3.3V/5V, or
adjustable from 0.7V to 4.5V via LDOREF. The linear
regulator provides up to 100mA output current with automatic
linear-regulator bootstrapping to the BYP input. When in
switch over, the LDO output can source up to 200mA.
ISL8112 includes on-board power-up sequencing, the power-
good (PGOOD_) outputs, digital soft-start, and internal soft-
stop output discharge that prevents negative voltages on
shutdown.
ISL8112 is implemented with constant on-time PWM control
scheme which need no sense resistors and provides 100ns
response to load transients while maintaining a relatively
constant switching frequency. The unique ultrasonic pulse-
skipping mode maintains the switching frequency above
25kHz, eliminating undesired audible noises in low frequency
operation at light load. Other features include pulse skipping
which maximizes efficiency in light-load applications, and
fixed-frequency PWM mode which reduces RF interference in
sensitive applications.
Ordering Information
Features
? Wide Input Voltage Range 5.5V to 25V
? Constant ON-TIME Control with 100ns Load-Step
Response
? Dual Fixed Outputs of 1.05V (3.3V) and 1.5V (5.0V), or
Adjustable Outputs of 0.7V to 5.5V (SMPS1) and 0V to
2.5V/5V (SMPS2), ±1.5% Accuracy
? Adjustable Switching Frequency: 400/500kHz,
300/400kHz, 200/300kHz
? Very High Light Load Efficiency (Skip Mode)
? 5mW Quiescent Power Dissipation
? ±1.5% (LDO): 100mA, 200mA (Switch Over)
? 3.3V Reference Voltage ±2.0%: 5mA
? 2.0V Reference Voltage ±1.0%: 50μA
? Temperature Compensated r DS(ON) Current Sensing
? Programmable Current Limit with Foldback Capability
? Selectable PWM, Skip or Ultrasonic Mode
? Independent PGOOD1 and PGOOD2 Comparators
? Soft-Start with Pre-Biased Output and Soft-Stop
? 1.7ms Digital Soft-Start and Independent Shutdown
? Independent ENABLE
? Thermal Shutdown
? Extremely Low Components Count
? Pb-Free Available (RoHS Compliant)
Applications
? Power Supply for Telecom/Datacom and POL
PART
NUMBER
PART
TEMP.
RANGE
PKG.
? System Requiring High Efficiency in Wide Load Range
(Note)
MARKING
(°C)
PACKAGE
DWG. #
? Compact Design with Minimum Components Count
ISL8112IRZ*
ISL8112 IRZ -40 to +100 32 Ld QFN
(Pb-free)
L32.5x5B
? PDAs and Mobile Communication Devices
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on
reel specifications.
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.
? 3- and 4-Cell Li+ Battery-Powered Devices
? DDR1, DDR2, and DDR3 Applications
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. 2006, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相关PDF资料 |
PDF描述 |
|---|---|
| EBM10DRKS | CONN EDGECARD 20POS DIP .156 SLD |
| SS10P3C-M3/87A | DIODE SCHOTTKY 10A 30V SMPC |
| ASC40DREF | CONN EDGECARD 80POS .100 EYELET |
| RMC08DREI | CONN EDGECARD 16POS .100 EYELET |
| SS10P2CL-M3/87A | DIODE SCHOTTKY 10A 20V SMPC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL8115 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High Voltage Synchronous Buck PWM Controller with Integrated Gate Driver and Current Sharing Capability |
| ISL8115EVAL1Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High Voltage Synchronous Buck PWM Controller with Integrated Gate Driver and Current Sharing Capability |
| ISL8115EVAL2Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High Voltage Synchronous Buck PWM Controller with Integrated Gate Driver and Current Sharing Capability |
| ISL8115FRTZ | 制造商:Intersil Corporation 功能描述:40V SYNCHRONOUS PWM CONTROLLER W/CURRENT SHARING - 4X4 24LD - Rail/Tube 制造商:Intersil Corporation 功能描述:IC REG CTRLR BUCK PWM 24-TQFN 制造商:Intersil Corporation 功能描述:PWM CONTROLLER, BUCK, 5.5V, TQFN-24, Input Voltage:36V, Output Current:30A, Supply Voltage Min:2.97V, Supply Voltage Max:5.5V, Digital IC Case Style:TQFN, No. of Pins:24, Frequency:1.5MHz, Operating Temperature Min:-40C |
| ISL8115FRTZ-T | 制造商:Intersil Corporation 功能描述:40V SYNCHRONOUS PWM CONTROLLER W/CURRENT SHARING - 4X4 24LD - Tape and Reel 制造商:Intersil Corporation 功能描述:IC REG CTRLR BUCK PWM 24-TQFN 制造商:Intersil Corporation 功能描述:PWM CONTROLLER, BUCK, 5.5V, TQFN-24, Input Voltage:36V, Output Current:30A, Supply Voltage Min:2.97V, Supply Voltage Max:5.5V, Digital IC Case Style:TQFN, No. of Pins:24, Frequency:1.5MHz, Operating Temperature Min:-40C |
发布紧急采购，3分钟左右您将得到回复。