CM3003-25SA CALMIRCO [California Micro Devices Corp], CM3003-25SA Datasheet

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CM3003-25SA

Manufacturer Part Number
CM3003-25SA
Description
1.5 Amp Dual Mode Low Dropout CMOS Regulator
Manufacturer
CALMIRCO [California Micro Devices Corp]
Datasheet
01/15/04
Features
Applications
© 2004 California Micro Devices Corp. All rights reserved.
Typical Application Circuit
GND
V
IN
Adjustable Output or Internally Fixed
375mV dropout at 1.5A load current
Operates from 2.2V to 5.5V input supply
Low Ground current (330µA at 1.5A Load)
Minimal output capacitance required
Current Limit Protection
Thermal Overload Protection
Reverse Voltage Protection
Thermally enhanced 8-pin SOIC package
Lead-free versions available
Low Voltage "Core" processors
Graphics Cards
Gigabit NIC Cards
PC Motherboards
Notebooks
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
2.2V - 5.5V
10
µ
F
1.5 Amp Dual Mode Low Dropout CMOS Regulator
EN
IN
CM3003
GND
OUT
ADJ
1.8V/2.5V@1.5A
100
n
F
10
µ
F
V
OUT
L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com
GND
EN
IN
Automatically selects Adjustable Output
(when external resistors are present)
Simplified Electrical Schematic
Product Description
The CM3003 is a family of very low dropout regulators
that offers dual mode operation. When the Adjust con-
trol pin (ADJ) is grounded, these devices automatically
enter a fixed voltage mode and deliver either a 1.8V or
2.5V output capable of supplying 1.5A, depending on
the device utilized. When the Adjust pin is connected to
an external resistor network the device automatically
operates as an adjustable regulator. The Adjust pin can
also be tied directly to the OUT pin which configures
the CM3003 as a 1.2V regulator.
An Enable control pin (EN) allows the device to be
placed in a low current mode.
The CM3003 devices are fully protected, offering both
overload current limiting, short circuit protection and
high temperature thermal shutdown. These devices
also includes reverse voltage protection that minimizes
any reverse current flow back into the output pin.
The CM3003 devices are housed in a space saving, 8-
pin power SOIC packages which has been thermally
enhanced (integral leadframe) to ensure maximum
junction to ambient power dissipation.
The CM3003 devices are available with optional lead-
free finishing.
2.2V-5.5V
2.5V Output when ADJ = GND
1.2V Reference
Over Current
Short Circuit
Over Temp
Controller
Voltage
+
-
EN
Fixed
Adj
120K
130K
CM3003
1.5 AMP
OUT
ADJ
1

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CM3003-25SA Summary of contents

Page 1

... These devices also includes reverse voltage protection that minimizes any reverse current flow back into the output pin. The CM3003 devices are housed in a space saving, 8- pin power SOIC packages which has been thermally enhanced (integral leadframe) to ensure maximum junction to ambient power dissipation ...

Page 2

... EN PART NUMBERING INFORMATION Standard Finish Ordering Part 1 Package Number Part Marking SOIC-8 CM3003-25SA CM3003-25SA SOIC-8 CM3003-18SA CM3003-18SA L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 ≥ 1.2V), the regulator is enabled. When EN EN Lead-free Finish Ordering Part 1 Number Part Marking ...

Page 3

... Ambient Operating Temperature Range Load Current C EXT © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 01/15/04 ABSOLUTE MAXIMUM RATINGS STANDARD OPERATING CONDITIONS L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 RATING UNITS ±2000 V [GND - 0.4] to +6.0 V -40 to +150 °C -40 to +85 ° ...

Page 4

... I = 100mA LOAD I = 1.0A LOAD I = 1.5A LOAD Regulator Disabled (EN=GND); V =3.3V IN Regulator Enabled (EN=V =3.3V Regulator Enabled (EN=V =3.3V =3.3V OUT IN Regulator Enabled 0V < V < 5. > 1.1V ADJ L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 (SEE NOTE 1) MIN TYP MAX =0V 2.40 2.50 2.60 1.73 1.80 1.87 1.15 1.20 1.25 2.2 3.0 3.8 0.5 1.2 1 250 450 330 670 0mA ...

Page 5

... F GND Figure 1. Application Circuit for Adjustable Output Operation. © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 01/15/04 CM3003-XX IN OUT EN ADJ GND R2 Output Voltage = 1.20 (R1+R2 [VOLTS] L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 1.5A V OUT R1 µ 100 ...

Page 6

... Performance Information CM3003 Typical DC Characteristics (T CM3003-25 Device Specfic Data © 2004 California Micro Devices Corp. All rights reserved. 6 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 =25°C, EN=V =3.3V OUT L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 =10uF, unless specified otherwise) 01/15/04 ...

Page 7

... Performance Information (cont’d) CM3003 Typical DC Characteristics (T CM3003-25 Device Specfic Data © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 01/15/04 =25°C, EN=V =3.3V =10uF, unless specified otherwise OUT L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 7 ...

Page 8

... Performance Information (cont’d) CM3003 Transient Characteristics (T CM3003-25 Device Specific Data © 2004 California Micro Devices Corp. All rights reserved. 8 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 =25°C, EN=V =3.3V =10uF, unless specified otherwise OUT L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 01/15/04 ...

Page 9

... Performance Information (cont’d) CM3003 Transient Characteristics (T CM3003-25 Device Specific Data © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 01/15/04 =25°C, EN=V =3.3V =10uF, unless specified otherwise OUT L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com CM3003 9 ...

Page 10

... 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 provide the CM3003 with an overall θ of 70°C/W which allows up to 800mW to be safely JA dissipated for the maximum junction temperature. © ...

Page 11

... Mechanical Details SOIC-8 Mechanical Specifications Dimensions for CM3003 devices packaged in 8-pin SOIC packages are presented below. For complete information on the SOIC-8 package, see the California Micro Devices SOIC Package Informa- tion document. PACKAGE DIMENSIONS Package Pins Millimeters Dimensions Min Max A 1.35 1.75 A 0.10 0. ...

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