概述
数据手册CM3014-15ST 概述
MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR 微功耗， 150MA低压差型CMOS稳压器
CM3014-15ST 数据手册
通过下载CM3014-15ST数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
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2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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www.calmicro.com
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12/13/02 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
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4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
12/13/02
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Power Supply Ripple Rejection
Power Supply Ripple Rejection
80
60
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0
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1mA
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10mA
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VIN = 3.8V, VOUT = 2.8V
COUT = 1uF Cer.
150mA
CBYP = 0.01uF
CBYP = 0.01uF
0
FREQUENCY [Hz]
FREQUENCY [Hz]
Power Supply Ripple Rejection
80
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Vs. Voltage Drop (1kHz)
80
100uA
1mA
60
60
40
20
0
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1mA
100mA
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20
0
VIN = 3.8V, VOUT = 2.8V
COUT = 1uF Cer.
NO BYP CAP
10mA
0.00 0.25 0.50 0.75 1.00 1.25 1.50
DROPOUT VOLTAGE [V]
FREQUENCY [Hz]
Noise Performance
Noise Performance
2002 California Micro Devices Corp. All rights reserved.
12/13/02 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
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100
75
50
25
0
80
70
60
50
40
30
20
10
0
0
50
100
LOAD CURRENT [mA]
150
200
0
1
2
3
4
INPUT VOLTAGE [V]
5
6
Load Regulation (VIN = 3.8V)
Dropout Voltage vs. Load Current (VOUT = 2.7V)
2.82
2.81
2.80
2.79
2.78
250
200
150
100
50
0
0
50
100
150
200
0
50
100
LOAD CURRENT [mA]
150
200
LOAD CURRENT [mA]
Line Regulation (5mA Load)
Foldback Current Limiting (VIN = 3.8V)
2.9
2.8
2.7
2.6
2.5
4.0
3.0
2.0
1.0
0.0
0
100
200
300
LOAD CURRENT [mA]
400
500
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
INPUT VOLTAGE [V]
2002 California Micro Devices Corp. All rights reserved.
6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
12/13/02
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7\SLFDOꢄ7UDQVLHQWꢄ&KDUDFWHULVWLFVꢄꢅQRPLQDOꢄFRQGLWLRQVꢄXQOHVVꢄVSHFLILHGꢄRWKHUZLVHꢆ
&XUYHVꢀVKRZQꢀIRUꢀꢌꢄꢋ9ꢀRXWSXWꢄ
Load transient (10% to 100%) Step Response
Line Transient (1Vpp) Step Response
Enable Response (CBYP = 10nF)
Disable Response (CBYP = 10nF)
2002 California Micro Devices Corp. All rights reserved.
12/13/02 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
7
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7\SLFDOꢄ7KHUPDOꢄ&KDUDFWHULVWLFV
The overall junction to ambient thermal resistance
Output Voltage Change vs. Temperature (1mA Load)
(θJA) for device power dissipation (PD) consists prima-
50
40
rily of two paths in series. The first path is the junction
to the case (θJC) which is defined by the package style,
30
and the second path is case to ambient (θCA) thermal
20
resistance which is dependent on board layout. The
final operating junction temperature for any set of con-
ditions can be estimated by the following thermal equa-
tion:
10
0
-10
-20
-30
-40
-50
TJUNC = TAMB + PD ∗ (θJC) + PD ∗ (θCA
= TAMB + PD ∗ (θJA)
)
The CM3014 uses a SOT23-5 package. When this
package is mounted on a double-sided printed circuit
board with two square inches of copper allocated for
"heat spreading", the resulting θJA is 175°C/W.
-50 -25
0
25
50
75 100 125
TEMPERATURE [oC]
Based on a maximum power dissipation of 320mW
(Load x Vin-Vout = 150mA x 2.2V) with an ambient of
70°C the resulting junction temperature will be:
Ground Current vs. Temperature
100
80
60
40
20
0
TJUNC = TAMB + PD ∗ (θJA)
= 70°C + 315mW ∗ (175°C/W)
= 70°C + 57.75°C = 127.75°C
7KHUPDOꢀFKDUDFWHULVWLFVꢀZHUHꢀPHDVXUHGꢀXVLQJꢀDꢀGRXEOH
VLGHGꢀ ERDUGꢀ ZLWKꢀ WZRꢀ VTXDUHꢀ LQFKHVꢀ RIꢀ FRSSHUꢀ DUHD
FRQQHFWHGꢀWRꢀWKHꢀ*1'ꢀSLQVꢀIRUꢀ³KHDWꢀVSUHDGLQJ´ꢄ
Measurements showing performance up to a junction
temperature of 125°C were performed under light load
conditions (1mA). This allows the ambient temperature
to be representative of the internal junction tempera-
ture.
0
25
50
75
100
125
JUNCTION TEMPERATURE [oC]
Note: The use of multi-layer board construction with
separate ground and power planes will further enhance
the overall thermal performance. In the event of no
copper area being dedicated for heat spreading, a
multi-layer board construction using only the minimum
size pad layout will typically provide the CM3014 with
an overall θJA of 175°C/W, which allows up to 450mW
)LJXUHꢀꢁꢂꢀꢀ&0ꢃꢄꢁꢅꢀ3HUIRUPDQFHꢀYVꢂꢀ7HPSHUDWXUH
to be dissipated safely.
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2002 California Micro Devices Corp. All rights reserved.
8
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
12/13/02
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2002 California Micro Devices Corp. All rights reserved.
12/13/02 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
9
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2002 California Micro Devices Corp. All rights reserved.
10 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
L
Fax: 408.263.7846
L
www.calmicro.com
12/13/02
CM3014-15ST 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| CM3014-18ST | CALMIRCO | MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR | 获取价格 |
|
| CM3014-25ST | CALMIRCO | MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR | 获取价格 |
|
| CM3014-28ST | CALMIRCO | MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR | 获取价格 |
|
| CM3014-29ST | CALMIRCO | MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR | 获取价格 |
|
| CM3014-30ST | CALMIRCO | MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR | 获取价格 |
|
| CM3014-33ST | CALMIRCO | MICROPOWER, 150MA LOW DROPOUT CMOS REGULATOR | 获取价格 |
|
| CM3015 | CALMIRCO | Micropower, 300mA Low Dropout CMOS Regulator | 获取价格 |
|
| CM3015-00 | CALMIRCO | Micropower, 300mA Low Dropout CMOS Regulator | 获取价格 |
|
| CM3015-00MA | CALMIRCO | Micropower, 300mA Low Dropout CMOS Regulator | 获取价格 |
|
| CM3015-00ST | CALMIRCO | Micropower, 300mA Low Dropout CMOS Regulator | 获取价格 |
|
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