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參數(shù)資料
| 型號： | MIC5259-3.3BML |
| 廠商： | MICREL INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 300mA High PSRR, Low Noise UCap CMOS LDO |
| 中文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.55 V DROPOUT, DSO6 |
| 封裝： | 6-Pin 2mm x 2mm MLF |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 3270K |
| 代理商： | MIC5259-3.3BML |
MIC5259
Micrel, Inc.
May 2005
1
M9999-051305
General Description
The MIC5259 is an efficient CMOS voltage regulator optimized
for low-noise applications. It offers 1.5% initial accuracy, low
dropout voltage (300mV at 300mA) and low ground current
(typically 105μA at light load). The MIC5259 provides a very-
low-noise output, ideal for RF applications where a clean
voltage source is required. The MIC5259 has a high PSRR
even at low supply voltages, critical for battery operated
electronics. A noise bypass pin is also available for further
reduction of output noise.
Designed specifically for handheld and battery-powered
devices, the MIC5259 provides a TTL-logic-compatible
enable pin. When disabled, power consumption drops to
nearly zero.
The MIC5259 also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for power
applications; critical issue in handheld wireless devices.
Key features include current limit, thermal shutdown, faster
transient response, and an active clamp to speed up device
turn-off. The MIC5259 is available in the 6-pin 2mm
×
2mm
MLF package and the ThinSOT-23-5 package in a wide
range of output voltages.
Typical Application
MIC5259
300mA High PSRR, Low Noise μCap CMOS LDO
Features
Input voltage range: 2.7V to 6.0V
PSRR = 70dB @ 1kHz
Low output noise: 30μV(rms)
Stability with ceramic output capacitors
Low-dropout: 300mV @ 300mA
High-output accuracy:
1.5% initial accuracy
3.0% over temperature
Low quiescent current: 105μA
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
Industrial portable electronics
PC peripherals
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
Micro
LeadFrame and MLF are trademarks of Amkor Technology.
ThinSOT is a trademark of Linear Technology Corporation.
C
OUT
= 1.0μF
Ceramic
1
5
2
3
4
C
BYP
= 0.01μF
Enable
Shutdown
EN
V
OUT
MIC5259-x.xBD5
EN (pin 3) may be
connected directly
to IN (pin 1).
V
IN
C
IN
= 1.0μF
Ceramic
MIC5259-x.xBML
1
EN
6
C
BYP
(optional)
V
IN
V
OUT
C
OUT
= 1.0μF
5
4
2
3
ENABLE
SHUTDOWN
C
IN
= 1.0μF
0.01μF
Ultra-Low-Noise Regulator Application
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC5259-4.75BD5 TR | 功能描述:IC REG LDO 4.75V .3A 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(jié)構(gòu):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(shù)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(yīng)商設(shè)備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5259-4.75BML TR | 功能描述:IC REG LDO 4.75V .3A 6-MLF 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(jié)構(gòu):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(shù)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(yīng)商設(shè)備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5259-4.75YD5 TR | 功能描述:低壓差穩(wěn)壓器 - LDO Low Drop Out Regulator, 300mA High PSRR in Thin SOT(Lead Free) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5259-4.75YML TR | 功能描述:低壓差穩(wěn)壓器 - LDO Low Drop Out Regulator, 300mA High PSRR in 2mm x 2mm MLF (Lead Free) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MIC5264-JGYML | 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: |
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