MIC2810
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
February 2008
M9999-022008-C
General Description
The MIC2810 is a high performance power management
IC, integrating a 2MHz DC/DC switcher with two 300mA
LDOs. The MIC2810 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/DC converter
is 53礦
RMS
, significantly lower than other converters that
use a PFM light load mode that can interfere with sensitive
RF circuitry.
The MIC2810 is a 礐ap design, operating with very small
ceramic output capacitors and inductors for stability,
therefore, reducing required board space and component
cost. It is available with fixed output voltages in a 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
" 2MHz DC/DC converter and two LDOs
" 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
" Thermal shutdown protection
" Current limit protection
DC/DC Converter
" 2.7V to 5.5V input voltage range
" Output current to 600mA in PWM mode
" LOWQ
?/DIV>
Mode: NO NOISE light load mode
53礦
RMS
Output noise in LOWQ
?/DIV>
mode
" 2MHz PWM operation in normal mode
LDOs
" LDO1
1.65V to 5.5V input voltage range
300mA Output current
Output voltage down to 0.8V
" LDO2
2.7V to 5.5V input voltage range
300mA Output current
Output voltage down to 0.8V
Applications
" Mobile phones
" PDAs
" GPS receivers
" Digital still cameras
" Portable media players
Typical Application
LDO
VIN
VIN1
SW
LDO1
LDO2
POR
CSET
LOWQ
EN2
BIAS
EN1
MIC2810-xxxYML
Baseband
Memory/DSP
PGND   SGND
V
IN
2.7V to 5.5V
4.7礔
2.2礔
ceramic
2.2礔
ceramic
0.01礔
0.1礔
2.2礔
V
OUT
2.2礖
GND
GND
EN
VIN2
10
20
30
40
50
60
70
80
90
0  100 200 300 400 500 600
OUTPUT CURRENT (mA)
1.2V
OUT
Efficiency
V
IN
=3.6V
V
IN
=3V
V
IN
=4.2V
相關代理商/技術參數(shù) |
參數(shù)描述 |
MIC281-0BM6 |
制造商:Rochester Electronics LLC 功能描述:- Bulk |
MIC281-0BM6 TR |
功能描述:IC SUPERVISOR THERMAL SOT23-6 RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:IttyBitty® 標準包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)(傳感器) 傳感器類型:內(nèi)部和外部 感應溫度:-55°C ~ 125°C,外部傳感器 精確度:±2°C 本地(最大),±3°C 遠程(最大) 拓撲:ADC(三角積分型),比較器,寄存器庫 輸出類型:I²C?/SMBus? 輸出警報:是 輸出風扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP,8-MSOP(0.118",3.00mm 寬) 供應商設備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱:MIC284-2BMMTRMIC284-2BMMTR-ND |
MIC281-0BM6TR |
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制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
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功能描述:線性穩(wěn)壓器 - 標準 DC-DC + 2 Linear Regulators with LowQ mode and POR (Lead-Free)
RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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