ETC CM3016

CM3016-48
Micropower, 4.75V/500mA Low Noise CMOS LDO Regulator
Features
Product Description
•
•
The CM3016-48 is a CMOS linear voltage regulator with
low quiescent current, very low drop out voltage and better
than 1% initial output voltage accuracy. The quiescent current is typically 150µA at light loads and only 165 µA at
500mA. This is 5% more efficient than equivalent Bi-CMOS
devices that can waste up to 25mA at 500mA load. The
CM3016-48 can maintain load regulation for peak currents
up to 500mA, which is useful for supplying inrush currents
during power-up and transient conditions. Continuous output current is limited by package type and board layout.
Linear LDO regulator with 4.75V output
500mA output current capability
- 500mA peak in SOT-23 package
500mV maximum dropout voltage at full load
150mV maximum dropout at 150mA load
Excellent line and load regulation
Stable with low ESR output capacitor
Ultra low noise with optional bypass capacitor
Fast power-up with bypass capacitor
"Zero" current in Shutdown mode
Thermal Overload Protection
Foldback Current Limiting Protection
Reverse current protection
•
•
•
•
•
•
•
•
•
•
A dedicated control input (EN, Active High) has been
included for power-up sequencing flexibility. When this input
is taken low, the regulator is disabled. In this state, the supply current will drop to near zero. The device also features
reverse current protection. This protects the device by
blocking the pass transistors parasitic diode when the output voltage is forced higher than the input.
Applications
•
•
•
Notebook computers
Consumer and personal electronics
Ideal for powering audio codecs
For low noise performance and increased power supply ripple rejection a noise bypass capacitor can be connected to
the BYP pin. Connecting this capacitor will not significantly
delay the speed of power-up.
The CM3016-48 is fully protected, offering both overload
current limiting and high temperature thermal shutdown. To
reduce board cost and layout size, the CM3016 was
designed to be stable with or without an output capacitor.
This includes tiny, low ESR ceramic capacitors. The
CM3016-48 is available in a 5-pin SOT23 package and is
ideal for space critical applications.
Typical Application Circuit
Simplified Electrical Schematic
Reverse Current
Protection
CM3016-48
IN
VIN
IN
EN
EN
CIN
+
1µF
COUT
BYP
GND
+
BYP
AMP
Fast
Power-Up
+
100nF
Current
Limit
VREF
+
2.2µF
CBYP
OUT
OUT
VOUT
EN
-
EN
Enable Control
Thermal Overload
GND
© 2003 California Micro Devices Corp. All rights reserved.
11/04/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
1
CM3016-48
PACKAGE / PINOUT DIAGRAM
Top View
IN
1
GND
2
EN
3
5
OUT
4
BYP
5-pin SOT23
Note: This drawing is not to scale.
PIN DESCRIPTIONS
SOT23-5
PIN(S)
NAME
DESCRIPTION
1
IN
2
GND
3
EN
4
BYP
Reference bypass input. Connect to an external capacitor for noise reduction. A 10nF-100nF
ceramic capacitor is recommended.
5
OUT
Regulator output. No output capacitor is required for stability. Any type of output capacitor can be
added to improve transient response, noise performance and power supply ripple rejection for frequencies over ~100kHz.
Regulator input. If this input is within a few inches of the main supply filter, a capacitor may not be
necessary. Otherwise an input filter capacitor of 1-10µF will ensure adequate filtering.
Ground is the negative reference for all voltages
Enable input. When this input is taken low (< 0.4V), the regulator is disabled. In this state, the supply current will drop to near zero.
Ordering Information
PART NUMBERING INFORMATION
Pins
Package
Ordering Part Number1
Part Marking
5
SOT23
CM3016-48ST
CA48
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
© 2003 California Micro Devices Corp. All rights reserved.
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430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
11/04/03
CM3016-48
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
[GND - 0.6] to [+6.0]
[GND - 0.6] to [V IN + 0.6]
[GND - 0.6] to [V IN + 0.6]
V
V
V
Storage Temperature Range
-40 to +150
°C
Operating Temperature Range
Ambient
Junction
-40 to +85
0 to +150
°C
°C
Power Dissipation (Notes 1,2)
Internally Limited
W
Pin Voltages
IN
EN
OUT
Note 1: The CM3016-48 contains a thermal overload circuit that automatically disables the device thereby preventing excessive
junction temperature. When the SOT23-5 package housing the device is mounted on a typical multi-layer board with moderate heat spreading copper area (2 square inches) will allow up to 0.315W to be safely dissipated. Please consult with factory
for thermal evaluation assistance.
Note 2: Consult CAMD Technical Support for power dissipation information regarding the CM3016-48 packaged in the SOT23 package.
STANDARD OPERATING CONDITIONS
PARAMETER
VIN
Ambient Operating Temperature Range
Load Current
COUT
RATING
UNITS
[VOUT + 0.15] to 6.0
VDC
-40 to +85
°C
0 to 500
mA
0 -100
µF
© 2003 California Micro Devices Corp. All rights reserved.
11/04/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
3
CM3016-48
Specifications (continued)
ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOUT
Output Voltage
TA = 25°C
0°C < TJ < 125°C
-40°C < TJ < 125°C
4.70
4.66
4.61
4.75
4.75
4.75
4.80
4.85
4.89
V
V
V
VR LINE
Line Regulation (see Note 4)
VOUT+1V < VIN and 2.5V < VIN < 6V
0.1
0.2
0.4
%
%
VR LOAD
Load Regulation
IOUT=1mA to 500mA;
VIN=VOUT+1V; Note 3
0.1
0.5
0.8
%
%
RDROP
Dropout Resistance
IOUT=1mA to 500mA;
VIN=VOUT(nominal)-100mV
0.7
1
1.2
Ω
Ω
Ground Current
with EN tied to VIN; ILOAD =1mA:
150
200
µA
with EN tied to VIN; ILOAD =150mA:
165
200
µA
0.01
1
µA
IGND
with EN tied to GND (Disable Mode):
VEN
Enable Voltage
Regulator becomes enabled
VDIS
Disable Voltage
Regulator enters shutdown
IEN
Enable Input Current
ENOISE
Output Noise Voltage
BW=10Hz-100kHz; COUT = 2.2µF;
CBYP = 0.1µF
30
µVrms
VOUT Turn-on Time
CBYP = 0µF; C OUT = 2.2µF
80
µS
CBYP = 0.1µF; COUT = 2.2µF
100
µS
800
mA
550
mA
Thermal Shutdown Junction
Temperature
165
°C
Thermal Hysteresis
20
°C
tON
ILIM
Overload Current Limit
ISC
Short Circuit Current Limit
TJSD
THYST
1.5
VOUT < 0.5V
V
0.4
0.18
V
V
0.01
µA
Note 1: VOUT +1V< VIN & 2.5V< VIN < 6V, IOUT=1mA, CIN=2.2uF, TJ=25°C, unless specified otherwise. Bold values
indicate -40°C < TJ < 125°C
Note 2: Tantalum, electrolytic or low ESR ceramic capacitors may be used for COUT.
Note 3: Regulation voltages and dropout resistance is measured at constant junction temperature using low duty
cycle pulse testing.
Note 4: Line regulation is displayed as the average regulation across the full operating range measured in %/V.
THERMAL PERFORMANCE
PACKAGE
θ JA MINIMUM FOOTPRINT
θ JA 1" SQUARE 2OZ. COPPER
220°C/W
170°C/W
SOT23-5
© 2003 California Micro Devices Corp. All rights reserved.
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430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
11/04/03
CM3016-48
Performance Information
Typical DC Characteristics (nominal conditions unless otherwise specified, CM3016-48ST Only)
CIN = 2.2uF, COUT = 2.2uF, No CBYP,, VIN = 5.75V, Load = 5mA
Dropout Voltage (Vout=4.7V)
Load Regulation
4.750
4.725
Foldback Current Limiting
500
5.0
400
4.0
OUTPUT VOLTAGE [V]
4.775
DROPOUT [mV]
OUTPUT VOLTAGE [V]
4.800
300
200
100
0
4.700
2.0
1.0
0.0
0
0
3.0
200
400
LOAD [mA]
100 200 300 400 500 600 700
600
800
0
200
4.74
200mA Load
4.73
4.72
4.71
1mA Load
2.5
2.0
1.5
1.0
0.5
0.0
4.70
5.2
5.7
1000 1200
900
800
700
600
500
0
4.7
800
1000
THRESHOLD [mV]
OOUTPUT VOLTAGE [V]
OUTPUT VOLTAGE [V]
1mA Load
4.75
5.0
4.5
4.0
3.5
3.0
600
Enable Voltage Threshold
Line Regulation
Line Regulation
4.76
400
LOAD CURRENT [mA]
LOAD CURRENT [mA]
1
2
3
4
5
6
4.5
INPUT VOLTAGE [V]
6.2
5.0
5.5
SUPPLY VOLTAGE [V]
6.0
INPUT VOLTAGE [V]
Ground Current vs. Out
put Load
180
GROUND CURRENT [uA]
GROUND CURRENT [uA]
200
En = Vin
160
Output Supply Current vs. Voltage
2500
140
120
100
1mA Load
80
60
40
20
175
150
125
100
0
0
0
1
2
3
4
5
100 200 300 400 500 600 700 800
6
LOAD CURRENT [mA]
OUTPUT SUPPLY CURRENT [nA]
Supply Current vs. Voltage (EN = VIN)
2000
1500
1000
Vin = 0V, EN = 0V
500
0
0
INPUT VOLTAGE [V]
1500
1000
Vout = 0V, EN = 0V
500
0
3
4
5
Vout = 4.75V, EN = 0V
2500
OUTPUT SUPPLY CURRENT [uA]
2000
2
3
4
5
6
10000
3000
INPUT SUPPLY CURRENT [nA]
INPUT SUPPLY CURRENT [nA]
2500
1
2
Output Supply Current vs. Voltage
Input Supply Current vs. Voltage
Input Supply Current vs. Voltage
0
1
OUTPUT SUPPLY VOLTAGE [V]
2000
1500
1000
500
0
6
INPUT SUPPLY VOLTAGE [V]
0
1
2
3
4
INPUT SUPPLY VOLTAGE [V]
5
6
Clamp to GND
1000
100
Vin = 4.75V,
EN = 0V
10
1
Protect
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
OUTPUT SUPPLY VOLTAGE [V]
© 2003 California Micro Devices Corp. All rights reserved.
11/04/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
5
CM3016-48
Performance Information (cont’d)
Transient Characteristics (nominal conditions unless otherwise specified, CM3016-48ST Only)
CIN = 2.2uF, COUT= 2.2uF, CBYP= 0.1uF, VIN = 5.0V, Load = 5mA,
Load Step Response
Load Step Response
Line Step Response
Enable, Disable Response
Enable Response
Disable Response
© 2003 California Micro Devices Corp. All rights reserved.
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430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
11/04/03
CM3016-48
Performance Information (cont’d)
Power Supply Ripple Rejection (nominal conditions unless otherwise specified, CM3016-48ST Only)
CIN = 1uF, VIN = 5.0V, Load = 5mA, PSRR measured with 10mV pk-pk sin wave on VIN.
PSRR (VIN-VOUT = 500mV)
PSRR (VIN-VOUT = 250mV)
80
80
70
70
0.1mA
60
60
50
50
5mA
20mA
50mA
100mA
40
30
PSRR [dB]
PSRR [dB]
0.1mA
40
5mA
30
20mA
200mA
20
300mA
50mA
20
100mA
400mA
10
10
500mA
200mA
Cout=2.2uF, Cbyp=100nF, Vin-Vout=250mV
Cout=2.2uF, Cbyp=100nF, Vin-Vout=500mV
300mA
400mA
0
0
10
100
1000
10000
10
100000
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
PSRR (VIN-VOUT = 200mV)
PSRR (VIN-VOUT = 175mV)
80
80
70
70
0.1mA
60
60
40
5mA
PSRR [dB]
PSRR [dB]
0.1mA
50
50
40
5mA
30
30
20mA
20
50mA
100mA
10
200mA
300mA
Cout=2.2uF, Cbyp=100nF, Vin-Vout=200mV
0
10
100
1000
10000
100000
20mA
20
50mA
10
100mA
Cout=2.2uF, Cbyp=100nF, Vin-Vout=175mV
200mA
0
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
© 2003 California Micro Devices Corp. All rights reserved.
11/04/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
7
CM3016-48
Performance Information (cont’d)
Power Supply Ripple Rejection (nominal conditions unless otherwise specified, CM3016-48ST Only)
CIN = 1uF, VIN = 5.0V, Load = 5mA, PSRR measured with 10mV pk-pk sin wave on VIN.
PSRR (VIN-VOUT = 150mV)
PSRR (VIN-VOUT = 125mV)
80
80
70
70
0.1mA
60
60
50
50
40
5mA
5mA
20mA
20
20mA
50mA
10
20
Cout=2.2uF, Cbyp=100nF, Vin-Vout=150mV
100mA
200mA
0
40
30
30
10
PSRR [dB]
PSRR [dB]
0.1mA
50mA
Cout=2.2uF, Cbyp=100nF, Vin-Vout=125mV
0
10
10
100
1000
10000
100000
100mA
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
PSRR (VIN-VOUT = 100mV)
80
70
0.1mA
PSRR [dB]
60
50
40
30
5mA
20
20mA
10
50mA
Cout=2.2uF, Cbyp=100nF, Vin-Vout=100mV
100mA
0
10
100
1000
10000
100000
Frequency [Hz]
© 2003 California Micro Devices Corp. All rights reserved.
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430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
11/04/03
CM3016-48
Performance Information (cont’d)
Typical Thermal Characteristics (nominal conditions unless otherwise specified, CM3016-48ST Only)
CIN = 2.2uF, COUT = 2.2uF, No CBYP ,VIN = 5.0V, Load = 5mA.
VOUT vs. Temperature
50
20
40
15
30
OUTPUT CHANGE [mV]
OUTPUT CHANGE [mV]
VOUT vs. Temperature (200mA Load)
20
10
0
-10
-20
-30
-40
10
5
0
-5
-10
-15
-20
-50
-40 -20
0
20
40
60
0
80 100 120
Ignd vs. Temperature
50
75
100
125
150
Dropout Resistance vs. Temperature
300
1.0
250
Dropout Resistance [Ohms]
GROUND CURRENT [uA]
25
JUNCTION TEMPERATURE [oC]
TEMPERATURE [oC]
200
150
100
50
0
0.8
0.6
0.4
0.2
0.0
-40 -20
0
20 40 60 80 100 120 140
TEMPERATURE [oC]
-40
0
40
80
120
160
TEMPERATURE [oC]
© 2003 California Micro Devices Corp. All rights reserved.
11/04/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
9
CM3016-48
Mechanical Details
The CM3016-48 is available in a 5-pin SOT23 and a 8pin MSOP package. Dimensions for each of these
packages are presented in this section.
SOT23-5 Mechanical Specifications
Dimensions for CM3016-48ST devices packaged in a
5-pin SOT23 package are presented below.
Mechanical Package Diagrams
TOP VIEW
For complete information on the SOT23 package, see
the California Micro Devices SOT23 Package Information document.
e1
e
5
4
E1 E
PACKAGE DIMENSIONS
1
Package
SOT23 (JEDEC name is MO-178)
Pins
5
Dimensions
3
b
Millimeters
Inches
Min
Max
Min
Max
A
--
1.45
--
0.057
A1
0.00
0.15
0.000
0.006
b
0.30
0.50
0.012
0.020
c
0.08
0.22
0.003
0.009
D
2.75
3.05
0.108
0.120
E
2.60
3.00
0.102
0.118
E1
1.45
1.75
0.057
0.069
e
0.95 BSC
0.0374 BSC
e1
1.90 BSC
0.0748 BSC
L
0.60 REF
# per tape
and reel
2
SIDE VIEW
D
A
A1
END VIEW
0.0236 REF
3000 pieces
Controlling dimension: inches
c
L1
Package Dimensions for SOT23-5.
© 2003 California Micro Devices Corp. All rights reserved.
10
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
11/04/03