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參數(shù)資料
| 型號(hào)： | MIC5252-4.75BM5 |
| 廠商： | MICREL INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 300 kHz 14-HTSSOP -40 to 125 |
| 中文描述： | 4.75 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 86K |
| 代理商： | MIC5252-4.75BM5 |
MIC5252
Micrel
December 2003
1
M0394-121003
General Description
The MIC5252 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 90
μ
A). The MIC5252 pro-
vides a very-low-noise output, ideal for RF applications
where a clean voltage source is required. The MIC5252 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 de-
vices, the MIC5252 provides a TTL-logic-compatible enable
pin. When disabled, power consumption drops nearly to zero.
The MIC5252 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. The MIC5252 is available in the 6-pin 2mm
×
2mm
MLF package and the IttyBitty SOT-23-5 package in a
wide range of output voltages.
Typical Application
C
OUT
= 1.0
μ
F
Ceramic
C
IN
= 1.0
μ
F
Ceramic
1
5
2
3
4
C
BYP
= 0.01
μ
F
Enable
Shutdown
EN
V
OUT
MIC5252-x.xBM5
EN (pin 3) may be
connected directly
to IN (pin 1).
V
IN
MIC5252
150mA High PSRR, Low Noise
μ
Cap CMOS LDO
Features
Input voltage range: 2.7V to 6.0V
PSRR = 50dB @ V
O
+ 0.3V
Ultra-low output noise: 30
μ
V(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: 90
μ
A
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
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
IttyBitty is a registered trademark of Micrel, Inc.
MicroeadFrame and MLF are trademarks of Amkor Technology.
MIC5252-x.xBML
1
EN
6
C
BYP
(optional)
V
IN
V
OUT
C
OUT
5
4
2
3
ENABLE
SHUTDOWN
Ultra-Low-Noise Regulator Application
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC5253 | 100mA Low Noise UCap Teeny LDO |
| MIC5253-1.85BC5 | 100mA Low Noise UCap Teeny LDO |
| MIC5253-1.8BC5 | 100mA Low Noise UCap Teeny LDO |
| MIC5253-2.6BC5 | 100mA Low Noise UCap Teeny LDO |
| MIC5253-2.9BC5 | 100mA Low Noise UCap Teeny LDO |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC5253 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:100mA Low Noise UCap Teeny LDO |
| MIC5253_04 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:100mA Low Noise ??Cap Teenya?￠ LDO |
| MIC5253-1.5BC5 | 功能描述:IC REG LDO 1.5V .1A SC70-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:Teeny™ 標(biāo)準(zhǔn)包裝:500 系列:- 穩(wěn)壓器拓?fù)浣Y(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(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:500mA 電流 - 限制（最小）:- 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 |
| MIC5253-1.5BC5 TR | 功能描述:IC REG LDO 1.5V .1A SC70-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:Teeny™ 標(biāo)準(zhǔn)包裝:500 系列:- 穩(wěn)壓器拓?fù)浣Y(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(biāo)準(zhǔn)）:- 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 |
| MIC5253-1.5YC5 TR | 功能描述:低壓差穩(wěn)壓器 - LDO 100mA Low Noise Cap LDO in SC70-5 Pkg. (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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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