参数资料
型号: MIC5259-2.8BD5 TR
厂商: Micrel Inc
文件页数: 1/11页
文件大小: 0K
描述: IC REG LDO 2.8V .3A TSOT23-5
标准包装: 3,000
稳压器拓扑结构: 正,固定式
输出电压: 2.8V
输入电压: 最高 6V
电压 - 压降(标准): 0.3V @ 300mA
稳压器数量: 1
电流 - 输出: 300mA
电流 - 限制(最小): 350mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
供应商设备封装: TSOT-23-5
包装: 带卷 (TR)
其它名称: MIC5259-2.8BD5TR
MIC5259-2.8BD5TR-ND
MIC5259
300mA High PSRR, Low Noise μCap CMOS LDO
General Description
Features
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 speci ? cally 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
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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
capacitors, reducing the amount of board space necessary
for power applications; critical issue in handheld wireless
devices.
? Thermal shutdown and current limit protection
Applications
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 5-pin Thin SOT-23
package in a wide range of output voltages.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
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Cellular phones and pagers
Cellular accessories
Battery-powered equipment
Laptop, notebook, and palmtop computers
Consumer/personal electronics
Industrial portable electronics
PC peripherals
V IN MIC5259-x.xBD5/YD5
C IN = 1.0μF
EN
Ceramic 2
Shutdown
EN
EN (pin 3) may be
connected directly
to IN (pin 1).
1 5
Enable 3 4
V OUT
C OUT = 1.0μF
Ceramic
C BYP = 0.01μF
V IN
ENABLE
SHUTDOWN
C IN = 1.0μF
MIC5259-x.xBML/YML
1 6
2 5
3 4
C BYP
(optional)
0.01μF
V OUT
C OUT = 1.0μF
Ultra-Low Noise Regulator Application
MLF and Micro LeadFrame 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 2006
1
M9999-091406
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MIC5259-3.0BD5 TR 功能描述:IC REG LDO 3V .3A TSOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:500 系列:- 稳压器拓扑结构:正,固定式 输出电压:12V 输入电压:14.5 V ~ 35 V 电压 - 压降(标准):- 稳压器数量:1 电流 - 输出:500mA 电流 - 限制(最小):- 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:TO-205AD,TO-39-3 金属罐 供应商设备封装:TO-39 包装:散装 其它名称:*LM78M12CH*LM78M12CH/NOPBLM78M12CH
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MIC5259-3.0BML TR 功能描述:IC REG LDO 3V .3A 6-MLF RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:500 系列:- 稳压器拓扑结构:正,固定式 输出电压:12V 输入电压:14.5 V ~ 35 V 电压 - 压降(标准):- 稳压器数量:1 电流 - 输出:500mA 电流 - 限制(最小):- 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:TO-205AD,TO-39-3 金属罐 供应商设备封装:TO-39 包装:散装 其它名称:*LM78M12CH*LM78M12CH/NOPBLM78M12CH
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