CM3019-15ST [CALMIRCO]
Micropower, 500mA Low Noise CMOS LDO Regulator; 微功耗， 500毫安低噪声CMOS LDO稳压器
| 型号： | CM3019-15ST |
| 厂家： | 
CALIFORNIA MICRO DEVICES CORP |
| 描述： | Micropower, 500mA Low Noise CMOS LDO Regulator |
| 文件： | 总8页 (文件大小：178K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Micropower, 500mA Low Noise CMOS LDO Regulator
Features
Product Description
The CM3019 is a CMOS linear voltage regulator with low
quiescent current, very low drop out voltage and better
than 1% initial output voltage accuracy.
• 500mA output current capability
• 500mA peak in SOT-23 package
• 500mA continuous in MSOP package
• 500mV maximum dropout voltage at full load
• Excellent line and load regulation
• Stable with any output capacitor
• Ultra low noise with optional bypass capacitor
• Fast power-up with bypass capacitor
• “Zero” current in Shutdown mode
• Thermal Overload Protection
The quiescent current is typically 150µA at light loads and
only 165µA at 500mA. This is 5% more efficient than
equivalent Bi-CMOS devices that can waste up to 25mA at
500mA.
Load regulation is maintained for peak currents up to
500mA. This is useful for supplying inrush currents during
power-up and transient conditions. Continuous output
current is limited by package type and board layout.
• 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.
Applications
•
•
•
•
Notebook, and palmtop computers
Cell phones and battery powered devices
Consumer and personal electronics
PC Card Vcc and Vpp regulation and switching
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.
Table 1: CM3019 Regulator Family
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.
Product
Output Voltage
Adjustable
1.2V
CM3019-00
CM3019-12
CM3019-15
CM3019-18
CM3019-25
CM3019-28
CM3019-30
CM3019-33
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
The CM3019 is fully protected, offering both overload
current limiting and high temperature thermal shutdown.
To reduce board cost and layout size the CM3019 was
designed to be stable with or without any output capacitor.
This includes tiny, low ESR ceramic capacitors.
For other output voltages, please contact the factory
Housed in a low profile MSOP8 package, or a SOT23-
5/SOT23-6, the device is ideal for space critical
applications.
Typical Application Circuit
Block Diagram
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
1
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
PACKAGE / PINOUT DIAGRAM
PIN DESCRIPTIONS
SOT-23-5 MSOP Symbol
Description
Pin
8 Pin
1
1
IN
IN is the input power source for the regulator. 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 about 1-10uF will ensure adequate filtering.
2
3
5-8
1
GND
EN
Ground is the negative reference for all voltages
When this input is taken low (< 0.4V), the regulator is disabled. In this state, the supply
current will drop to near zero.
4
5
4
3
BYP
OUT
Reference Bypass Pin. Connect to an external capacitor for noise reduction. A 10nF-
100nF size ceramic capacitor is recommended.
Out is the regulator output voltage used to power the load. No output capacitor is
required for stability. Output capacitance can be added to improve transient
response, noise performance and power supply ripple rejection for frequencies over
~100kHz.
Note1: Tantalum, electrolytic or low cost ceramic capacitors may be used.
STANDARD PART ORDERING INFORMATION
Ordering Information
Package
Pins
Style
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
MSOP
MSOP
MSOP
MSOP
MSOP
MSOP
MSOP
MSOP
Tape & Reel
CM3019-00ST
Part Marking
CB00
6
5
5
5
5
5
5
5
8
8
8
8
8
8
8
8
CM3019-12ST
CM3019-15ST
CM3019-18ST
CM3019-25ST
CM3019-28ST
CM3019-30ST
CM3019-33ST
CM3019-00MA
CM3019-12MA
CM3019-15MA
CM3019-18MA
CM3019-25MA
CM3019-28MA
CM3019-30MA
CM3019-33MA
CB12
CB15
CB18
CB25
CB28
CB30
CB33
CM30/1900
CM30/1912
CM30/1915
CM30/1918
CM30/1925
CM30/1928
CM30/1930
CM30/1933
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
2
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Specifications
Absolute Maximum Ratings
Operating Conditions
Range
Parameter
Rating
Unit
Parameter
Uni
t
VIN Voltage
EN, VOUT Voltages
Temperature: Storage
Operating Ambient
Operating Junction
Power Dissipation
+ 6.0, Gnd - 0.6
VCC + 0.6, Gnd - 0.6
V
V
VIN
2.2 to 6.0
-40 to +85
0 to 500
V
°C
mA
Temperature (Ambient)
Load Current
COUT
- 40 to +150
-40 to +85
0 to +150
°C
note2
0-50
µF
Internally limited
W
Electrical Operating Characteristics
VOUT+1V< VIN & 2.5V< VIN < 6V, IOUT=1mA, CIN=2.2uF, TJ=25oC, COUT=2.2µF, VSD=1.5V, unless specified otherwise.
bold values indicate -40oC<TJ<125 oC
Symbol
VOUT
Parameter
Output Voltage Accuracy
Conditions
MIN
-1
-2
TYP
MAX
1
2
UNIT
%
%
%
%/V
TA = 25 oC
0 oC<TJ<125 oC
-40 oC<TJ<125 oC
-3
3
VR LINE
VR LOAD
RDROP
Line Regulation Note4
Load Regulation
Dropout Resistance
Ground Current
VOUT+1V< VIN & 2.5V< VIN < 6V
0.1
0.1
0.7
0.2
0.4
0.25
0.5
1
1.2
200
IOUT=1mA to 500mA Note3
VIN=VOUT+1V
IOUT=1mA to 500mA
VIN=VOUT(nominal)-100mV
EN tied to VCC, ILOAD = 1mA
%
Ω
IGND
150
165
0.01
µA
µA
µA
V
EN tied to VCC, ILOAD = 500mA
EN tied to GND, (Disable Mode)
Regulator enabled
200
1
VEN
VDIS
Enable Voltage
Disable Voltage
1.5
Regulator shutdown
0.4
V
0.18
IEN
Enable Input Current
0.01
75
µA
dB
PSRR
eN
Power Supply Ripple Rejection f=1kHz
Output Noise Voltage
CBYP=0.1uF, BW=10Hz to 100kHz
30
µVrm
s
ton
VOUT Turn-On-Time
CBYP=0uF
BYP=0.1uF
80
µs
C
100
800
550
165
µs
mA
mA
°C
ILIM
ISC
Overload Current Limit
Short Circuit Current
VOUT < 0.5V
TJSD
Thermal Shutdown Junction
Temperature
THYST
Thermal Hysteresis
20
°C
Note 2: Tantalum, electrolytic or low cost ceramic capacitors may be used.
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
SOT23-5/SOT23-6
MSOP8 Fused
θJA Minimum Footprint
θJA 1” square 2oz copper
170 OC/W
220 OC/W
160 OC/W
70 OC/W
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
3
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Typical DC Characteristics (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1µF, COUT = 2.2µF, No CBYP, VIN = 4.0V, Load = 5mA (all plots measured with 3.0V VOUT
)
Load Regulation
Dropout Voltage (VOUT=2.9V)
Foldback Current Limiting
3.10
3.05
3.00
2.95
2.90
800
700
600
500
400
300
200
100
0
4.0
3.0
2.0
1.0
0.0
0
200
400
LOAD [mA]
600
0
100 200 300 400 500 600 700
LOAD CURRENT [mA]
0
100 200 300 400 500 600 700 800 900
LOAD CURRENT [mA]
Line Regulation
Line Regulation
Enable Voltage Threshold
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1000
900
800
700
600
500
3.10
3.05
3.00
2.95
2.90
2.85
2.80
1mA Load
1mA Load
500mALoad
2
3
4
5
6
7
2.8 3.2 3.6 4.0 4.4 4.8 5.2 5.6 6.0
0
1
2
3
4
5
6
SUPPLY VOLTAGE [V]
]
INPUT VOLTAGE [V]
INPUT VOLTAGE[V
Supply Current vs. Voltage (EN = VIN)
Ground Current vs. Output Load
Output Supply Current vs. Voltage
2500
200
200
175
150
125
100
En = Vin
180
160
140
120
2000
1500
1000
500
0
1mA Load
100
80
60
40
20
0
Vin = 0V, EN = 0V
0
1
2
3
4
5
6
0
100 200 300 400 500 600 700 800
LOAD CURRENT [mA]
0
1
2
3
4
5
6
INPUT VOLTAGE [V]
OUTPUT SUPPLY VOLTAGE [V]
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
4
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Input Supply Current vs. Voltage
2500
Input Supply Current vs. Voltage
Output Supply Current vs. Voltage
10000
2500
2000
1500
1000
500
Clamp to GND
Vout = 3V, EN = 0V
1000
100
10
2000
1500
1000
500
0
Vin = 3V,
EN = 0V
Vout = 0V, EN = 0V
1
Protect
0
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
INPUT SUPPLY VOLTAGE [V]
INPUT SUPPLY VOLTAGE [V]
OUTPUT SUPPLY VOLTAGE [V]
Transient Characteristics (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1µF, COUT = 2.2µF, No CBYP, VIN = 4.0V, Load = 5mA (all plots measured with 3.0V VOUT
)
10% to 90% Load Step (tr=1µs)
10% to 90% Load Step (tr=1µs)
3.5V – 4.5V Line Step (tr=1µs)
Enable Response
10% to 90% Load Step (tr=1µs)
3.5V – 4.5V Line Step (tr=1µs)
Disable Response
3.5V – 4.5V Line Step (tr=1µs)
Enable Response
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
5
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Power-up
Power-up
Power-down
Power Supply Ripple Rejection and Noise (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1µF, VIN = 4.0V, PSRR measured with 50mV pk-pk sin wave on VIN.
(all plots measured with 3.0V VOUT
)
Power Supply Ripple Rejection [dB]
Power Supply Ripple Rejection [dB]
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
100uA Load
5mA Load
5mA Load
100uA Load
100mA Load
100mA Load
500mA Load
500mA Load
Cout=10uF, Cbyp=100nF
100
Cout=2.2uF, Cbyp=100nF
100
10
1000
10000
100000
10
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
6
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Power Supply Ripple Rejection [dB]
Ouput noise spectral density (100uALoad)
90
80
70
60
50
40
30
20
10
0
1.E-06
1.E-07
1.E-08
5mA Load
100uA Load
100mA Load
500mA Load
Cout = 10uF, Cbyp = 100nF
NO OUTPUT CAP, Cbyp=100nF
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
7
Preliminary
CM3019
CALIFORNIA MICRO DEVICES
Typical Thermal Characteristics (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1uF, COUT = 2.2uF, No CBYP, VIN = 4.0V, Load = 5mA (all plots measured with 3.0V Vout)
VOUT vs. Temperature
VOUT vs. Temperature
50
40
50
40
30
30
20
20
10
10
0
0
-10
-20
-30
-40
-50
-10
-20
-30
-40
-50
-40 -20
0
20 40 60 80 100 120 140
TEMPERATURE [oC]
0
25
50
75
100
125
TEMPERATURE [oC]
IGND vs. Temperature
300
250
200
150
100
50
0
-40 -20
0
20 40 60 80 100 120 140
TEMPERATURE [oC]
© 2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
8
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