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參數資料
| 型號： | MIC5255-2.8BML |
| 廠商： | MICREL INC |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz 14-HTSSOP -40 to 125 |
| 中文描述： | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO6 |
| 封裝： | 2 X 2 MM, MLF-6 |
| 文件頁數： | 1/13頁 |
| 文件大?。?/td> | 948K |
| 代理商： | MIC5255-2.8BML |
MIC5255
150mA Low Noise Cap CMOS LDO
IttyBitty 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
November 2006
1
M9999-110906
General Description
The MIC5255 is an efficient, precise CMOS voltage
regulator optimized for ultra-low-noise applications. It
offers 1% initial accuracy, extremely-low dropout voltage
(135mV at 150mA) and low ground current (typically
90A). The MIC5255 provides a very-low-noise output,
ideal for RF applications where a clean voltage source is
required. A noise bypass pin is also available for further
reduction of output noise.
Designed specically for handheld and battery-powered
devices, the MIC5255 provides a TTL-logic-compatible en-
able pin. When disabled, power consumption drops nearly
to zero.
The MIC5255 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in handheld wireless
devices.
Key features include current limit, thermal shutdown, faster
transient response, and an active clamp to speed up
device turn-off. Available in the 6-pin 2mm × 2mm MLF
package, the IttyBitty
SOT-23-5 package and the new
Thin SOT-23-5, which offers the same footprint as the
standard IttyBitty
SOT-23-5, but only 1mm tall. The
MIC5255 offers a range of output voltages.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
Input voltage range: 2.7V to 6.0V
Thin SOT package: 1mm height SOT-23-5
Ultra-low output noise: 30V(rms)
Stability with ceramic output capacitors
Ultra-low dropout: 135mV @ 150mA
High output accuracy:
–
1.0% initial accuracy
–
2.0% over temperature
Low quiescent current: 90A
Tight load and line regulation
TTL-Logic-controlled enable input
“Zero” off-mode current
Thermal shutdown and current limit protection
Applications
Cellular phones and pagers
Cellular accessories
Battery-powered equipment
Laptop, notebook, and palmtop computers
Consumer/personal electronics
___________________________________________________________________________________________________________
Typical Application
COUT = 1.0F
CIN = 1.0F
Ceramic
15
2
3
4
CBYP = 0.01F
Enable
Shutdown
EN
VOUT
MIC5255-x.x_M5
EN (pin 3) may be
connected directly
to IN (pin 1).
VIN
Ultra-Low-Noise Regulator Application
相關PDF資料 |
PDF描述 |
|---|---|
| MIC5255-3.0BD5 | Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz 14-HTSSOP -40 to 125 |
| MIC5265-1.5YD5 | 150mA uCap LDO Regulator |
| MIC5306-1.5YD5 | 150mA Micropower Cap Baseband LDO |
| MIC5306-2.8YD5 | 150mA Micropower Cap Baseband LDO |
| MIC5306 | 150mA Micropower Cap Baseband LDO |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC5255-3.0BD5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC5255-3.0BD5 TR | 功能描述:IC REG LDO 3V .15A TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:500 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:12V 輸入電壓:14.5 V ~ 35 V 電壓 - 壓降（標準）:- 穩(wěn)壓器數量:1 電流 - 輸出:500mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-205AD，TO-39-3 金屬罐 供應商設備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5255-3.0BD5TR | 制造商:RF Micro Devices Inc 功能描述: |
| MIC5255-3.0BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC5255-3.0BM5 TR | 功能描述:IC REG LDO 3V .15A SOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:500 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:12V 輸入電壓:14.5 V ~ 35 V 電壓 - 壓降（標準）:- 穩(wěn)壓器數量:1 電流 - 輸出:500mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-205AD，TO-39-3 金屬罐 供應商設備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
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