CALMIRCO CM3065-18TN

PRELIMINARY
CM3065
2.0 Amp Tri-Mode Low Dropout CMOS Regulator
Features
Product Description
•
The CM3065 family of very low dropout regulators
offers both fixed/adjustable-output and fixed-output
operation capable of delivering up to 2A of current. The
CM3065 devices are fully protected, offering overload
current limiting, short circuit protection, high temperature thermal shutdown, and reverse voltage protection
to minimize reverse current flow into the output pin.
Operates as an adjustable output or a fixed output
regulator with 2 output voltage options
1.8V or 2.5V fixed output voltage versions
360mV dropout at 2.0A load current
Operates from 2.2V to 5.5V input supply
Low Ground current (350µA at 2.0A Load)
Stable with low ESR ceramic output capacitor
Current limit protection
Thermal overload protection
Reverse voltage protection
Thermally enhanced 8-lead SOIC or 3-lead TO263 package
Lead-free versions available
•
•
•
•
•
•
•
•
•
•
The CM3065-xxSA/SF (8-lead, SOIC packaged)
devices operate in either adjustable or fixed output
modes. When the ADJ input is grounded, the regulator
operates as a fixed output voltage device at the specified output voltage. When the ADJ input is connected
to an external resistor network the device operates as
an adjustable regulator. The ADJ input can also be tied
directly to the OUT pin which configures the CM3065
as a 1.2V regulator. The CM3065-xxSA/SF devices
feature an Enable control input (EN), which when set
low, disables the device to a low quiescent current
mode.
Applications
•
•
•
•
•
Low voltage "Core" processors
Graphics cards
Gigabit NIC cards
PC motherboards
Notebook computers
The CM3065-xxTO/TN (TO-263 packaged) versions
operate as higher power, fixed output voltage devices
and are available with 1.8V or 2.5V outputs voltages
only.
The CM3065 is available in a space saving, 8-lead
power SOIC which has been thermally enhanced with
an integral leadframe to ensure maximum junction to
ambient power dissipation, or a 3-lead TO-263 package. Both packages are offered with optional lead-free
finishing.
Typical Application Circuit
Simplified Electrical Schematic
(See notes below for TO-263 devices.)
CM3065-xxSA/SF
VIN
3.3V
10µF
IN
EN
IN
2.0A
OUT
Controller
Over Current
Short Circuit
Over Temp
VOUT
EN
(Note 1)
R1
ADJ
GND
2.2V-5.5V
100nF 10µF
1.2V Reference
Voltage
R2
+
EN
-
GND
Fixed Output when ADJ = GND
Automatically selects Adjustable Output
(when external resistors are present)
2..0 AMP
Fixed
130K
Adj
120K
Note 1: EN pin is internally tied to VIN on CM3065-xxTO/TN devices
Note 2: ADJ pin is internally tied to GND on CM3065-xxTO/TN devices.
OUT
ADJ
(Note 2)
GND
© 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
PRELIMINARY
CM3065
PACKAGE / PINOUT DIAGRAM
TOP VIEW
2
3
4
GND
GND
GND
GND
8
7
6
5
IN
1
GND
2
OUT
3
CM3065-XXTX
1
CM3065
XXSX
EN
IN
OUT
ADJ
TOP VIEW
Note:
Tab (on back)
is GND
3-lead TO-263
8-lead Power SOIC
Note: These drawings are not to scale.
PIN DESCRIPTIONS
TO-263
SOIC-8
LEAD(S)
LEAD(S)
NAME
1
2
IN
Positive input voltage for the regulator. If this input pin is greater than 2 inches from
the main input filter, a 10µF ceramic capacitor is recommended for adequate filtering.
2, TAB
5-8
GND
The negative reference for all voltages. Also functions as a thermal path for heat dissipation.
3
3
OUT
The regulated voltage output. An output capacitor of 10µF is recommended to minimize any transient load disturbances under normal operating conditions. Additional
output capacitance can be used to further improve transient load response.
---
1
EN
Enable/shutdown input. When EN is asserted high (VEN ≥ 1.2V), the regulator is
enabled. When EN is asserted low (VEN ≤ 0.4V), the regulator is shut down.
---
4
ADJ
Feedback input. When ADJ is grounded, the device enters fixed voltage mode. When
ADJ is connected to an external resistor network, the device operates as an adjustable regulator. The Adjust pin can also be tied directly to the OUT pin which configures the CM3065 as a 1.2V regulator.
DESCRIPTION
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Lead-free Finish
LEADS/
PINS
Output
Voltage
Package
Ordering Part
Number1
Part Marking
Ordering Part
Number1
Part Marking
8
2.5
SOIC-8
CM3065-25SA
CM3065-25SA
CM3065-25SF
CM3065-25SF
8
1.8
SOIC-8
CM3065-18SA
CM3065-18SA
CM3065-18SF
CM3065-18SF
3
2.5
TO-263
CM3065-25TO
CM3065-25TO
CM3065-25TN
CM3065-25TN
3
1.8
TO-263
CM3065-18TO
CM3065-18TO
CM3065-18TN
CM3065-18TN
Note 1: TO-263 packaged parts are fixed output.
Note 2: Parts are shipped in Tape & Reel form unless otherwise specified.
© 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
08/16/04
PRELIMINARY
CM3065
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
ESD Protection (HBM)
Pin Voltages
IN, OUT, ADJ, EN
RATING
UNITS
±2000
V
[GND - 0.4] to +6.0
V
Storage Temperature Range
-40 to +150
°C
Operating Temperature Range
Ambient
Junction
-40 to +85
-40 to +150
°C
°C
Power Dissipation (See note 1)
Internally Limited
W
Note 1: The SOIC package used is thermally enhanced through the use of a fused integral leadframe. The power rating is based on
a printed circuit board heat spreading capability equivalent to 2 square inches of copper connected to the GND pins. Typical
multi-layer boards using power plane construction will provide this heat spreading ability without the need for additional dedicated copper area. (Please consult with factory for thermal evaluation assistance)
STANDARD OPERATING CONDITIONS
VALUE
UNITS
VIN
PARAMETER
2.2 to 5.5
V
Ambient Operating Temperature Range
-40 to +85
°C
Load Current
0 to 2000
mA
COUT
10 ±20%
µF
© 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
3
PRELIMINARY
CM3065
ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1)
SYMBOL
VOUT
PARAMETER
CONDITIONS
Regulator Output Voltage
MIN
0mA < ILOAD < 2.0A, VIN ≥ [VOUT + 0.8V],
VADJ=0V
TYP
MAX
UNITS
CM3065-25
2.45
2.50
2.55
V
CM3065-18
1.764
1.80
1.836
V
ILIM
Overload Current Limit
VOUT > 1.2V
2.2
3.0
3.8
A
ISC
Short Circuit Current Limit
VOUT < 0.2V
0.5
1.2
1.8
A
Load Regulation
VIN=[VOUT + 0.8V], 100mA ≤ ILOAD ≤ 1.5A
0.2
0.4
%
VIN=[VOUT + 0.8V], 100mA ≤ ILOAD ≤ 2.0A
0.3
0.6
%
ILOAD = 5mA; 3.0V ≤ VIN ≤ to 5.0V
0.2
0.4
%
ILOAD = 100mA
18
45
mV
ILOAD = 1.0A
180
450
mV
ILOAD = 1.5A
270
600
mV
ILOAD = 2.0A
360
700
mV
5
30
µA
Regulator Enabled (EN=VIN=[VOUT + 0.8V]);
ILOAD= 0mA; Note 2
325
500
µA
Regulator Enabled (EN=VIN=[VOUT + 0.8V]);
ILOAD= 1.5A; Note 2
330
550
µA
Regulator Enabled (EN=VIN=[VOUT + 0.8V]);
ILOAD= 2.0A; Note 2
350
600
µA
VOUT=3.3V; VIN = 0V
30
100
µA
VR LOAD
VR LINE
Line Regulation xx
VDROPOUT Dropout Voltage
IGND
IROUT
TDISABLE
THYST
Ground Current
Output Reverse Leakage
Regulator Disabled (EN=GND); VIN=3.3V;
Note 2
Shutdown Temperature
Thermal Hysteresis
160
25
°C
°C
Enable Pin Input (CM3065-xxSA only)
VTH_EN
IEN
EN Input Threshold
Voltage
Note 2
0.4
EN Input Leakage
Current
0V < VEN < 5.5V; Note 2
-
1.2
V
0.1
5
µA
0.2
0.3
V
0.1
1
µA
Adjust Pin Input (output set by external resistors, CM3065-xxSA only)
VTH_ADJ
IEN
ADJ Input Threshold Volt- Note 2
age
ADJ Input Leakage
Current
0.1
VADJ > 1.1V; Note 2
Note 1: Operating Characteristics are over Standard Operating Conditions unless otherwise specified.
Note 2: Applies for CM3065-xxSA devices only.
© 2004 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
08/16/04
PRELIMINARY
CM3065
Mechanical Details
The CM3065 is available in either an 8-lead SOIC or a
3-lead TO-263 package.
Mechanical Package Diagrams
SOIC-8 Mechanical Specifications
TOP VIEW
Dimensions for CM3065 devices supplied in an 8-lead
SOIC package are presented below.
D
8
7
6
5
For complete information on the SOIC-8 package, see
the California Micro Devices SOIC Package Information document.
H
Pin 1
Marking
E
PACKAGE DIMENSIONS
Package
SOIC
Leads
Dimensions
1
3
4
8
Millimeters
Inches
Min
Max
Min
Max
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.004
0.010
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
4.80
5.00
0.189
0.197
E
3.80
4.19
0.150
0.165
e
2
1.27 BSC
SIDE VIEW
A
SEATING
PLANE
H
5.80
6.20
0.228
0.244
L
0.40
1.27
0.016
0.050
100 pieces*
# per tape
and reel
2500 pieces
e
END VIEW
0.050 BSC
# per tube
A1
B
C
L
Controlling dimension: inches
Package Dimensions for SOIC-8
* This is an approximate number which may vary.
© 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
PRELIMINARY
CM3065
Mechanical Details (cont’d)
TO-263-3 Mechanical Specifications
Mechanical Package Diagrams
Dimensions for CM3065 devices supplied in a 3-lead
TO-263 package are presented below.
E
For complete information on the TO-263-3 package,
see the California Micro Devices TO-263 Package
Information document.
L2
D
TOP VIEW
L
1
PACKAGE DIMENSIONS
Package
TO-263
Leads
3
Dimensions
Millimeters
Inches
Max
Min
Max
A
4.06
4.57
0.160
0.190
b
0.508
0.990
0.020
0.039
b2
1.14
1.40
0.045
0.055
c
0.457
0.737
0.018
0.029
c2
1.14
1.40
0.045
0.055
D
8.64
9.65
0.340
0.380
D1
8.00
---
0.315
---
E
9.65
10.29
0.380
0.405
E1
6.22
---
0.245
---
2.54 BSC
b2
b
E1
A
c2
SIDE
VIEW
D1
BACK
VIEW
0.100 BSC
L
14.60
15.87
0.575
0.625
L1
2.29
2.79
0.090
0.110
L2
---
1.40
---
0.055
L4
3
e
Min
e
2
0.254 BSC
c
LEADFORM
0.010 BSC
# per tube
100 pieces*
# per tape
and reel
2500 pieces
0° -8°
L4
L1
SEATING PLANE
Controlling dimension: inches
* This is an approximate amount which may vary.
Package Dimensions for TO-263-3.
© 2004 California Micro Devices Corp. All rights reserved.
6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
08/16/04