参数资料
| 型号： | MIC2821-4GJLYML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC PWR MGMT DGTL TRPL LDO 16-MLF |
| 标准包装： | 1 |
| 应用： | 手持/移动设备 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘，16-MLF? |
| 供应商设备封装： | 16-MLF?（4x4） |
| 包装： | 标准包装 |
| 产品目录页面： | 1086 (CN2011-ZH PDF) |
| 其它名称： | 576-3083-6 |
MIC2811/2821
Digital Power Management IC
2MHz, 600mA DC/DC with
Triple 300mA LDOs
General Description
Features
The MIC2811/21 are high performance power
management ICs, supporting four output voltage rails with
maximum efficiency. The four rails are generated by a
single 600mA DC/DC converter and three 300mA LDOs.
LDO1 and LDO2 are capable of operating at a low input
voltage down to 1.65V useful for post regulating the output
?
?
?
?
?
2MHz DC/DC converter and 3 LDOs
Tiny 16-pin 3mm x 3mm MLF ? package
Thermal Shutdown Protection
±2% Output Voltage Accuracy on all outputs
Current Limit Protection
voltage of the DC-DC converter. The MIC2811 supports
the use of a bypass cap for improved noise performance
on LDO1 & LDO2 while the MIC2821 offers a separate
enable pin for LDO3.
DC/DC Converter
? 2.7V to 5.5V input voltage range
? Output current to 600mA
Featuring an operating frequency of 2MHz, the DC to DC
?
2MHz PWM operation
converter uses small values of L and C to reduce board
space but still retains operating efficiencies up to 86% at
load currents up to 600mA.
The MIC2811/21 feature a μCap design, operating with
very small ceramic output capacitors and inductors for
stability, reducing required board space and component
cost and it is available in fixed output voltages in the 16-
pin 3mm × 3mm MLF ? leadless package.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
? Up to 86% efficiency (1.2V output)
LDO 1 & 2
? 1.65V to 5.5V input voltage range
? 300mA output current
? Fixed Output voltage as low as 0.8V
? Low 142mV dropout
? 70dB PSRR at 1kHz
LDO 3
?
2.7V to 5.5V input voltage range
Applications
? Mobile phones / PDAs
?
Portable media players
?
Mobile Television Receivers
?
?
300mA output current
Fixed Output voltage as low as 1.0V
____________________________________________________________________________________________________________
Typical Application
1.2VOUT Efficiency
0
100
90
80
70
60
50
40
30
20
10
0
3V
3.6V
4.2V
L = 2.2 μ H
C = 2.2 μ F
100 200 300 400 500 600
OUTPUT CURRENT (mA)
Micro LeadFrame and MLF 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
April 2008
M9999-042208-A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2821-4GMSYML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC2821-4GMSYML TR | 功能描述:直流/直流开关转换器 Single DC/DC + 3 LDOs w/ Indep Enables RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MIC2821-4GMSYML-TR | 功能描述:Handheld/Mobile Devices PMIC 16-MLF? (4x4) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 应用:手持/移动设备 电流 - 电源:- 电压 - 电源:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-VFQFN 裸露焊盘，16-MLF? 供应商器件封装:16-MLF?（4x4） 标准包装:1 |
| MIC2826-A0YMT TR | 功能描述:直流/直流开关调节器 Single 500mA Step-Down and Triple 150mA LDOs with I2C Voltage Control & Sequencing 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 |
| MIC2826-A0YMT-TR | 功能描述:Processor PMIC 14-TMLF? (2.5x2.5) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 应用:处理器 电流 - 电源:- 电压 - 电源:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-UFQFN 裸露焊盘，14-TMLF? 供应商器件封装:14-TMLF?（2.5x2.5） 标准包装:1 |
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