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PDF CM3002 Data sheet ( Hoja de datos )
| Número de pieza | CM3002 | |
| Descripción | Micropower 1.0A Low Dropout CMOS Regulators | |
| Fabricantes | California Micro Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CM3002 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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CM3002
Micropower 1.0A Low Dropout CMOS Regulators
Features
• Regulated output options: 1.5, 1.8, 2.5 and
3.3 volts
• 1.0A output current
• Operates from 3.3V supply (5.0V for CM3002-33)
• Very low dropout voltage on CM3002-33
products (500mV@1A)
• Enable Output Control for power-up sequencing
• Low quiescent operating current (< 600µA typical)
• Current limit protection
• Thermal overload protection
• Reverse voltage protection
• Available in thermally-enhanced SOIC-8 and
MSOP-8 (CM3002-33MA/MF) packages
• Lead-free versions available
Applications
• Low Voltage "Core" Processors
• Peripheral Adapter Cards
• Portable/Battery-Powered Devices
Table 1: CM3002 Regulator Family
PRODUCT
CM3002-15SA/SF
CM3002-18SA/SF
CM3002-25SA/SF
CM3002-33SA/SF
CM3002-33MA/MF
INPUT
VOLTAGE
3.3V
3.3V
3.3V
5.0V or 3.3V
5.0V or 3.3V
OUTPUT VOLTAGE
1.5V
1.8V
2.5V
3.3V
3.3V
Product Description
The CM3002 family of regulators are very low dropout
regulators that deliver up to 1.0A of load current at a
fixed voltage output. Input and output voltage options
for the CM3002 family devices are presented in
Table 1.
Operating from a single input supply, these devices are
ideally suited for powering low voltage “core” proces-
sors, especially where a 3.3V source is already avail-
able.
These regulators feature a dedicated control input (EN,
Active High) for power-up sequencing flexibility. When
this input is taken low, the regulator output is disabled.
In this state, the supply current will drop to a low level
to ensure all the internal control circuitry still remains
active. This provides excellent start-up response when-
ever the device comes out of shutdown.
The CM3002 family of regulators is fully protected,
offering both overload current limiting and high temper-
ature thermal shutdown. Housed in space saving ther-
mally-enhanced SOIC-8 and MSOP-8 (CM3002-33MA/
MF) packages, these devices ensure maximum junc-
tion-to-ambient power dissipation.
The CM3002 is available with optional lead-free finish-
ing.
Typical Application Circuit
Supply
Voltage +
-
VCC
VOUT
EN
+ GND
1µF
VOUT
+
100nF 10µF
Simplified Electrical Schematic
VCC
Thermal Sensor
EN &
Current Limit
Reference
Voltage
+ EN
-
GND
VOUT
© 2004 California Micro Devices Corp. All rights reserved.
08/16/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846 ▲ www.calmicro.com
1
1 page  
CM3002
Performance Information
CM3002-15SA/SF Typical DC Characteristics (nominal conditions unless specified otherwise)
Supply Current vs. Voltage (EN=VCC)
700
600
500
400
300
200
100
0
012345
VCC [V]
Supply Current vs. Voltage (EN=GND)
700
600
500
400
300
200
100
0
012345
VCC [V]
Line Regulation with 1A Load
1.58
1.56
1.54
1.52
1.50
1.48
1.46
1.44
1.42
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC [V]
Ground Current vs. Output Load
700
600
500
400
300
200
100
0
0 200 400 600 800 1000 1200
Load Current [mA]
1.58
1.56
1.54
1.52
1.50
1.48
1.46
1.44
1.42
0
Load Regulation
200 400 600 800 1000 1200
Load Current [mA]
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Current Limiting Protection
500 1000 1500
Load Current [mA]
2000
© 2004 California Micro Devices Corp. All rights reserved.
08/16/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846 ▲ www.calmicro.com
5
5 Page 
CM3002
Performance Information (cont’d)
CM3002-18SA/SF Typical Transient Characteristics (nominal conditions unless specified otherwise)
Cold Start Power-up with Rated Load
Full Power Down with Rated Load
Power-Up Sequencing using Enable Input
Line Transient Step Response (1Vp-p)
Load Transient Response (50mA to 500mA)
Load Transient Response (100mA to 900mA)
© 2004 California Micro Devices Corp. All rights reserved.
08/16/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846 ▲ www.calmicro.com
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet CM3002.PDF ] | |
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