收藏本站
MIC26603 Evaluation Board
28V, 6A HyperLight Load ?
Synchronous DC-DC Buck Regulator
SuperSwitcher IIG?
General Description
The MIC26603 DC-DC regulator operates ov er an input
supply range of 4.5V to 28V and provides a regu lat ed output
at up to 6A of outpu t current. The output voltage is a djustable
to 0.8V with a typical accuracy of ±1%, and th e device
operates at a switching frequency of 600kHz. T he switching
frequency remains fairly constant with chang e s in input
voltage and output load.
Micrel’s Hyper Light L oad? architecture p rov ides the
same high-efficiency and ultra-fast transient re sp onse as
the Hyper Speed Control? architecture under m edium to
heavy loads, but also maintains high efficiency un der light
load conditions by transitioning to variable fr equency,
discontinuous mode operation.
The MIC26603 utilizes an adaptive T ON ripp le control
architecture. An undervoltage lockout feature is p r ovided to
ensure proper operation under pow er-sag condi tions. An
internal soft-sta rt feature is provided to reduce th e inrush
current. Foldback current limit and “hiccup” mode sh ort-circuit
protection and thermal shutdown ensures protec tio n of the IC
during fault conditions.
Note : This evaluation board is for 6A applicatio ns .
The datashe et and supporting documentation can be
found on Micrel’s web site at: www.micrel.com .
Requirements
The MIC26603 provides a 5V regulated outp ut for input
voltage V IN ranging from 5.5V to 28V. When V IN < 5.5V,
VDD should be tied to PVIN pins to bypass the internal
linear regulator by a jumper. The output load can either be
Getting Started
1. Connect an external supp ly to the V IN terminal.
Apply the desired input voltag e to the V IN and ground
terminals of the evaluation board, paying careful
attention to polarity and supp ly voltage. An ammeter
may be place d between the inp ut supply and the V IN
terminal to the evaluation b oard. Ensure that the
supply voltage is monitored at the V IN terminal. The
ammeter and/or power lead resistance can reduce
the voltage supplied to the in put.
2. Connect the load to th e V OUT and ground
terminals. The load can be e ither passive (resistive)
or active (as in an electronic load). An ammeter can
be placed between the load and the V OUT terminal.
Ensure that the output voltage i s monitored at the
V OUT terminal. V OUT can be set to 0.9V, 1.0V, 1.2V,
1.5V, 1.8V, 2.5V, 3.3V, or 5.0V by a jumper. If a
different voltage is needed, it can be adjusted by
changing the feedba ck resistors. See “Output
Voltage ” section.
3. Enable th e MIC266 03 . The EN pin is provided on
th e evalu ation board . The output of th e MIC26603
tu rns on when V DD exceeds the UVLO threshold.
The output of the MIC26603 may be turned off by
shorting the EN pin to ground. A connection on the
board provides easy access to the enable pin.
Ordering Information
an active or passive load.
Precautions
The evaluation board does not have reverse polarity
Part Number
MIC26603YJL EV
Description
6A HLL DC-DC Regulator Evaluation
Board
protection. Applying a negative voltage to the V IN terminal
may damage the device. In addition, the maximum V IN
operating voltage of the MIC26603 evaluation board is
28V. Exceeding 29V on VIN could damage the device
capacitance and also makes (High V IN )/(Low V OUT ).
Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc.
MLF and Micro Lead Frame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
July 2011
M9999-071511-A
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MIC26901YJL EV BOARD EVAL FOR MIC26901YJL
MIC2841AYMT TR IC LED DRIVR WHITE BCKLGT 10TMLF
MIC2842AYMT TR IC LED DRIVR WHITE BCKLGT 10TMLF
MIC2843YMT TR IC LED DRIVER PWM CONTROL 10TMLF
MIC2844AYMT TR IC LED DRIVR WHITE BCKLGT 10TMLF
MIC2845A-MFYMT TR IC LED DRIVR WHITE BCKLGT 14TMLF
MIC2846A-MFYMT TR IC LED DRIVR WHITE BCKLGT 14TMLF
MIC2981/82YWM TR IC SOURCE DRIVER ARRAY HC 18SOIC
相关代理商/技术参数
MIC26603YJL TR 功能描述:直流/直流开关调节器 28V/6A DC-DC Buck Regulator w/ HLL RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
MIC26603YJLEV 制造商:Micrel Inc 功能描述:Evaluation Board for MIC26603YJL
MIC26603YJL-EV 功能描述:MIC26603 HyperLight Load?, SuperSwitcher IIG? DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board 制造商:microchip technology 系列:HyperLight Load?，SuperSwitcher IIG?? 零件状态:无货 主要用途:DC/DC，步降 输出和类型:1，非隔离 功率 - 输出:- 电压 - 输出:5V 电流 - 输出:6A 电压 - 输入:5V 稳压器拓扑:降压 频率 - 开关:600kHz 板类型:完全填充 所含物品:板 使用的 IC/零件:MIC26603 标准包装:1
MIC26603YJLTR 制造商:Micrel 功能描述:Conv DC DC Step Down 2.5 5.5V 8 Pin MLF
MIC26603YJL-TR 功能描述:Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 6A 28-PowerVQFN Variant, 28-MLF? 制造商:microchip technology 系列:HyperLight Load?，SuperSwitcher IIG?? 包装:剪切带（CT） 零件状态:停产 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:1 电压 - 输入（最小值）:4.5V 电压 - 输入（最大值）:28V 电压 - 输出（最小值/固定）:0.8V 电压 - 输出（最大值）:5.5V 电流 - 输出:6A 频率 - 开关:600kHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:28-PowerVQFN 变式，28-MLF? 供应商器件封装:28-MLF?（5x6） 标准包装:1
MIC26603-ZAYJL TR 制造商:Micrel Inc 功能描述:IC REG BUCK SYNC ADJ 6A 28MLF
MIC26901YJL EV 功能描述:电源管理IC开发工具 28V/9A DC-DC Buck Regulator w/ HSC - Evaluation Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
MIC26901YJL TR 功能描述:直流/直流开关调节器 28V/9A DC-DC Buck Regulator w/ HSC RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5