参数资料
型号: MIC5245-3.3BM5 TR
厂商: Micrel Inc
文件页数: 1/12页
文件大小: 0K
描述: IC REG LDO 3.3V .15A SOT23-5
标准包装: 3,000
稳压器拓扑结构: 正,固定式
输出电压: 3.3V
输入电压: 最高 6V
电压 - 压降(标准): 0.15V @ 150mA
稳压器数量: 1
电流 - 输出: 150mA
电流 - 限制(最小): 160mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 带卷 (TR)
其它名称: MIC5245-3.3BM5TR
MIC5245-3.3BM5TR-ND
MIC5245
General Description
MIC5245
150mA μ Cap CMOS LDO Regulator
Final Information
Features
Micrel
The MIC5245 is an efficient, precise CMOS voltage regulator
optimized for ultra-low-noise applications. The MIC5245 of-
fers better than 1% initial accuracy, extremely low dropout
voltage (typically 150mV at 150mA) and constant ground
current over load (typically 100 μ A). The MIC5245 provides a
very low noise output, ideal for RF applications where quiet
voltage sources are required. A noise bypass pin is also
available for further reduction of output noise.
Designed specifically for hand-held and battery-powered
devices, the MIC5245 provides a TTL logic compatible en-
able pin. When disabled, power consumption drops nearly to
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Ultralow dropout — 100mV @ 100mA
Ultralow noise — 30 μ V(rms)
Stability with tantalum or ceramic capacitors
Load independent, ultralow ground current
150mA output current
Current limiting
Thermal Shutdown
Tight load and line regulation
“ Zero ” off-mode current
Fast transient response
TTL-Logic-controlled enable input
zero.
Applications
The MIC5245 also works with low-ESR ceramic capacitors,
reducing the amount of board space necessary for power
applications, critical in hand-held wireless devices.
Key features include current limit, thermal shutdown, a push-
pull output for faster transient response, and an active clamp
to speed up device turnoff. Available in the IttyBitty? SOT-23-5
and power MSO-8 packages, the MIC5245 also offers a
range of fixed output voltages.
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Cellular phones and pagers
Cellular accessories
Battery-powered equipment
Laptop, notebook, and palmtop computers
PCMCIA V CC and V PP regulation/switching
Consumer/personal electronics
SMPS post-regulator/dc-to-dc modules
High-efficiency linear power supplies
Not recommended for new designs, see MIC5255.
Ordering Information
Part Number
MIC5245-2.5BM5
MIC5245-2.7BM5
MIC5245-2.8BM5
MIC5245-2.85BM5
MIC5245-3.0BM5
MIC5245-3.1BM5
MIC5245-3.2BM5
MIC5245-3.3BM5
MIC5245-3.3BMM
Marking
LS25
LS27
LS28
LS2J
LS30
LS31
LS32
LS33
Voltage
2.5V
2.7V
2.8V
2.85V
3.0V
3.1V
3.2V
3.3V
3.3V
Junction Temp. Range
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
– 40 ° C to +125 ° C
Package
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
MSOP-8
Other voltages available. Contact Micrel for details.
Typical Application
1
V IN MIC5245-x.xBM5
V OUT
ENABLE
SHUTDOWN
V IN
1
2
MIC5245-3.3MM
8
7
Enable
Shutdown
2
3
4
C OUT
V OUT
3
4
6
5
EN
EN (pin 3) may be
connected directly
o IN (pin 1).
C BYP
(optional)
C OUT
C BYP
(OPTIONAL)
Ultra-Low-Noise Regulator Application
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.micrel.com
August 2002
1
MIC5245
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MIC5246-1.85BM5 TR 功能描述:IC REG LDO 1.85V .15A SOT23-5 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