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| 型号： | MIC2800-A4SYML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 506K |
| 描述： | IC REG TRPL BUCK/LINEAR 16MLF |
| 标准包装： | 5,000 |
| 拓扑： | 降压（降压）（1），线性（LDO）（2） |
| 功能： | 任何功能 |
| 输出数： | 3 |
| 频率 - 开关： | 2MHz |
| 电压/电流 - 输出 1： | 可调，600mA |
| 电压/电流 - 输出 2： | 1.2V，300mA |
| 电压/电流 - 输出 3： | 3.3V，300mA |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 无 |
| 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，16-MLF? |
| 供应商设备封装： | 16-MLF?（4x4） |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC2800-A4SYMLTR MIC2800-A4SYMLTR-ND |
MIC2800
Digital Power Management IC
2MHz, 600mA DC/DC w/Dual
300mA/300mA Low V
IN
LDOs
LOWQ is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame 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
September 2007
M9999-090507-C
General Description
The MIC2800 is a high performance power management
IC, giving three output voltages with maximum efficiency.
Integrating a 2MHz DC/DC converter with an LDO post
regulator, the MIC2800 gives two high efficiency outputs
with a second, 300mA LDO for maximum flexibility. The
MIC2800 features a LOWQ
?/DIV>
mode, reducing the total
current draw while in this mode to less than 30礎. In
LOWQ
?/DIV>
mode, the output noise of the DC to DC converter
is 75礦
RMS
, significantly lower than other converters which
use a PFM light load mode that can interfere with sensitive
RF circuitry.
The DC to DC converter uses small values of L and C to
reduce board space but still retains efficiencies over 90%
at load currents up to 600mA.
The MIC2800 is a 礐ap 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 x 3mm MLF
?/DIV>
leadless package.
Data sheets and support documentation can be found on
Micrels web site at: www.micrel.com.
Features
" 2.7V to 5.5V input voltage range
" 2MHz DC/DC converter and two stand-alone LDOs
LDO1: Low input voltage is powered directly from
DC/DC converter for highest efficiency
" Integrated power-on reset (OR function for all outputs)
Adjustable delay time
" LOWQ
?/DIV>
mode
30礎 Total I
Q
when in LOWQ
?/DIV>
mode
" Tiny 16-pin 3mm x 3mm MLF
?/DIV>
package
DC to DC Converter
" Output current to 600mA in PWM mode
" LOWQ
?/DIV>
Mode: NO NOISE Light load mode
75礦
RMS
output noise in LOWQ
?/DIV>
mode
" 2MHz PWM operation in normal mode
" >90% efficiency
LDOs
" LDO1 input voltage directly connected to DC/DC
converter output voltage for maximum efficiency
Ideal for 1.8V to 1.5V conversion
300mA output current from 1.8V input
Output voltage down to 0.8V
" LDO2 300mA output current capable
" Thermal Shutdown Protection
" Current Limit Protection
Applications
" Mobile phones
" PDAs
" GPS receivers
" Digital still cameras
" Portable media players
Typical Application
LDO
VIN
VIN
SW
FB
LDO1
LDO2
POR
C
SET
LOWQ
EN2
C
BYP
C
BIAS
EN1
MIC2800-xxxYML
Baseband
Memory/DSP
PGND SGND
V
IN
2.7V to 5.5V
4.7礔/
6.3V
C
BYP
0.01礔
C
OUT2
2.2礔
ceramic
C
OUT1
2.2礔
ceramic
C
SET
0.01礔
C
BIAS
0.1礔
2.2礔
ceramic
V
OUT
2.2礖
GND
GND
100 200 300 400 500 600
OUTPUT CURRENT (mA)
50
55
60
65
70
75
80
85
90
95
100
DC/DC 1.8V
OUT
Efficiency
0
3V
3.6V
4.2V
L = 2.2礖
C
OUT
= 2.2礔
/LowQ = V
IN
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相关代理商/技术参数 |
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|---|---|
| MIC280-0BM6 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC280-0BM6 TR | 功能描述:IC SUPERVISOR THERMAL SOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:IttyBitty® 标准包装:2,500 系列:SilentSense™ 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-55°C ~ 125°C，外部传感器 精确度:±2°C 本地（最大），±3°C 远程（最大） 拓扑:ADC（三角积分型），比较器，寄存器库 输出类型:I²C?/SMBus? 输出警报:是 输出风扇:是 电源电压:2.7 V ~ 5.5 V 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) 其它名称:MIC284-2BMMTRMIC284-2BMMTR-ND |
| MIC280-0BM6TR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MIC2800-D24MYML | 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: |
| MIC2800-D24MYML TR | 功能描述:线性稳压器 - 标准 DC-DC + 2 Linear Regulators with LowQ Mode (Lead Free) RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
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