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参数资料
型号： MIC2537-2BM
厂商： Micrel Inc
文件页数： 1/12页
文件大小： 0K
描述： IC USB SWITCH QUAD 16-SOIC
标准包装： 48
类型： USB 开关
输出数： 4
Rds（开）： 700 毫欧
内部开关： 是
电流限制： 250mA
输入电压： 3 V ~ 5.5 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 16-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 16-SOIC
包装： 管件
MIC2537
General Description
MIC2537
Quad Power Distribution Switch
Final Information
Features
Micrel
The MIC2537 is a cost-effective high-side power switch with
four independently controlled channels, optimized for bus-
powered Universal Serial Bus (USB) applications. Few exter-
nal components are necessary to satisfy USB requirements.
The MIC2537 satisfies the following USB requirements: each
switch channel supplies up to 100mA as required by USB
bus-powered downstream devices; fault current is limited to
typically 250mA, well below the UL 25VA safety require-
ments; and a flag output is available to indicate fault condi-
tions to the local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered applications.
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Compliant to USB specifications
3V to 5.5V input
100mA minimum continuous load current per port
425m ? typical on-resistance
< 400mA current limit
Individual open-drain fault flag leads
3V/5V-compatible enable inputs
Active-high (-1) and active-low (-2) versions
100 μ A max. on-state supply current
<1 μ A typical off-state supply current
16-lead SOP package
– 40 ° C to 85 ° C operation
Additional features include thermal shutdown to prevent
catastrophic switch failure from high-current loads and 3.3V
Applications
and 5V logic compatible enable inputs.
The MIC2537 is available in active-high and active-low ver-
sions in a 16-lead SOP package.
Typical Application
Upstream V BUS
4.75V to 5.25V
500mA max.
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USB keyboards
USB bus-powered docking stations
Notebook docking stations
Notebook PCs
PDA
General power distribution
Ferrite
Bead
MIC5207-3.3
LDO Regulator
IN OUT
10k
3.3V USB Controller
V+ EN
10k 10k 10k
MIC2537
ENA
IN
33μF*
0.01μF
V BUS
D+
D –
GND
Downstream
USB
Port 1
100mA max.
4.7
μF
GND
1μF
D+
D –
OC
EN
OC
EN
OC
EN
FLGA
ENB
FLGB
ENC
FLGC
END
NC
OUTA
OUTB
OUTC
OUTD
NC
0.1
μF
33μF*
0.01μF
V BUS
D+
D–
GND
Downstream
USB
Port 2
100mA max.
Bold lines indicate
GND
OC
FLGD
GND
0.1" wide, 1-oz. copper
high-current traces.
* 33μF, 16V tantalum or 100μF, 10V electrolytic per port
33μF*
0.01μF
V BUS
D+
D –
Downstream
USB
Port 3
GND
V BUS
100mA max.
33μF*
0.01μF
D+
D –
GND
Downstream
USB
Port 4
100mA max.
Typical Bus-Powered Hub
UL Recognized Component
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.micrel.com
December 1999
1
MIC2537
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相关代理商/技术参数
参数描述
MIC2537-2BM TR 功能描述:IC USB SWITCH QUAD 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6
MIC2537-2YM 功能描述:电源开关 IC - USB Quad USB Switch (Lead Free) RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube
MIC2537-2YM TR 功能描述:电源开关 IC - USB Quad USB Switch (Lead Free) RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube
MIC25383R-JBQS 制造商:RF Micro Devices Inc 功能描述:
MIC25400YML TR 功能描述:直流/直流开关调节器 2A Dual Output PWM Synchronous Buck Regulator 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
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