View CM3019-33ST_1226886.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

CALIFORNIA MICRO DEVICES
Features Product Description
Preliminary CM3019
Micropower, 500mA Low Noise CMOS LDO Regulator
* 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 * Foldback Current Limiting Protection * Reverse current protection 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. The quiescent current is typically 150A at light loads and only 165A 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. 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. 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 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. Housed in a low profile MSOP8 package, or a SOT235/SOT23-6, the device is ideal for space critical applications.
Applications
* * * * Notebook, and palmtop computers Cell phones and battery powered devices Consumer and personal electronics PC Card Vcc and Vpp regulation and switching
Table 1: CM3019 Regulator Family
Product Output Voltage CM3019-00 Adjustable CM3019-12 1.2V CM3019-15 1.5V CM3019-18 1.8V CM3019-25 2.5V CM3019-28 2.8V CM3019-30 3.0V CM3019-33 3.3V For other output voltages, please contact the factory
Typical Application Circuit
Block Diagram
(c) 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
CALIFORNIA MICRO DEVICES
PACKAGE / PINOUT DIAGRAM
Preliminary CM3019
PIN DESCRIPTIONS SOT-23-5 Pin 1 MSOP 8 Pin 1 Symbol IN Description 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. 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. Reference Bypass Pin. Connect to an external capacitor for noise reduction. A 10nF100nF 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.
2 3 4 5
5-8 1 4 3
GND EN BYP OUT
Note1: Tantalum, electrolytic or low cost ceramic capacitors may be used.
STANDARD PART ORDERING INFORMATION Package Pins
6 5 5 5 5 5 5 5 8 8 8 8 8 8 8 8
Ordering Information 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 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
Part Marking
CB00 CB12 CB15 CB18 CB25 CB28 CB30 CB33 CM30/1900 CM30/1912 CM30/1915 CM30/1918 CM30/1925 CM30/1928 CM30/1930 CM30/1933
(c) 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
CALIFORNIA MICRO DEVICES
Specifications
Parameter Absolute Maximum Ratings Rating + 6.0, Gnd - 0.6 VCC + 0.6, Gnd - 0.6 - 40 to +150 -40 to +85 0 to +150 Internally limited Unit V V C Parameter
Preliminary CM3019
Operating Conditions Range 2.2 to 6.0 -40 to +85 0 to 500 0-50
VIN Voltage EN, VOUT Voltages Temperature: Storage Operating Ambient Operating Junction Power Dissipation
VIN Temperature (Ambient) Load Current note2 COUT
Uni t V C mA F
W
Electrical Operating Characteristics
VOUT+1V< VIN & 2.5V< VIN < 6V, IOUT=1mA, CIN=2.2uF, TJ=25 C, COUT=2.2F, VSD=1.5V, unless specified otherwise. o o bold values indicate -40 Co
Symbol VOUT
Parameter Output Voltage Accuracy Line Regulation Note4 Load Regulation Dropout Resistance Ground Current
VR LINE VR LOAD RDROP IGND
Conditions o TA = 25 C o o 0 CMIN -1 -2 -3
TYP
0.1 0.1 0.7 150 165 0.01 1.5
MAX 1 2 3 0.2 0.4 0.25 0.5 1 1.2 200 200 1 0.4 0.18
UNIT % % % %/V % A A A V V A dB Vrm s s s mA mA C C
VEN VDIS IEN PSRR eN ton ILIM ISC TJSD THYST
Enable Voltage Disable Voltage Enable Input Current Power Supply Ripple Rejection Output Noise Voltage VOUT Turn-On-Time Overload Current Limit Short Circuit Current Thermal Shutdown Junction Temperature Thermal Hysteresis
Regulator enabled Regulator shutdown
0.01 f=1kHz CBYP=0.1uF, BW=10Hz to 100kHz CBYP=0uF CBYP=0.1uF VOUT < 0.5V 75 30 80 100 800 550 165 20
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.
Package SOT23-5/SOT23-6 MSOP8 Fused
(c) 2004 California Micro Devices Corp. All rights reserved
Thermal Performance JA Minimum Footprint JA 1" square 2oz copper O O 220 C/W 170 C/W O O 160 C/W 70 C/W
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
3
CALIFORNIA MICRO DEVICES
Preliminary CM3019
Typical DC Characteristics (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1F, COUT = 2.2F, No CBYP, VIN = 4.0V, Load = 5mA (all plots measured with 3.0V VOUT)
Load Regulation
3.10
OUTPUT VOLTAGE [V]
Dropout Voltage (VOUT=2.9V)
800 700
OUTPUT VOLTAGE [V]
Foldback Current Limiting
4.0
3.05
600 DROPOUT [V] 500 400 300 200 100
3.0
3.00
2.0
2.95
1.0
2.90 0 100 200 300 400 500 600 700
LOAD CURRENT [m A]
0 0 200 400 LOAD [mA] 600
0.0 0 100 200 300 400 500 600 700 800 900
LOAD CURRENT [mA]
Line Regulation
3.10
Line Regulation
4.0
OOUTPUT VOLTAGE [V]
Enable Voltage Threshold
1000 900 800 700 600 500
OUTPUT VOLTAGE [V]
3.05
3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 5 6
2 3 4 5 6 SUPPLY VOLTAGE [V] 7
1mA Load
3.00 2.95 2.90 2.85 2.80 2.8 3.2 3.6 4.0 4.4 4.8 5.2 INPUT VOLTAGE [V] 5.6 6.0
1mA Load
500mA Load
INPUT VOLTAGE [V]
Supply Current vs. Voltage (EN = V IN)
200 180 160 140 120 100 80 60 40 20 0 0 En = Vin
GROUND CURRENT [uA]
Ground Current vs. Output Load
OUTPUT SUPPLY CURRENT [nA]
THRESHOLD [mV]
Output Supply Current vs. Voltage
2500 2000 1500 1000 Vin = 0V, EN = 0V 500 0 0 1 2 3 4 5 6
OUTPUT SUPPLY VOLTAGE [V]
200
GROUND CURRENT [uA]
175 150
1mA Load
125 100
1
2
3
4
5
6
0
100 200 300 400 500 600 700 800
LOAD CURRENT [mA]
INPUT VOLTAGE [V]
(c) 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
CALIFORNIA MICRO DEVICES
Input Supply Current vs. Voltage
2500
INPUT SUPPLY CURRENT [nA]
Preliminary CM3019
Output Supply Current vs. Voltage
10000 Clamp to GND
Input Supply Current vs. Voltage
2500
INPUT SUPPLY CURRENT [nA]
2000 1500 1000 Vout = 0V, EN = 0V 500 0 0 1 2 3 4 5 6
INPUT SUPPLY VOLTAGE [V]
2000 1500 1000 500 0 0
Vout = 3V, EN = 0V
OUTPUT SUPPLY CURRENT [uA]
1000 100 10 1 Protect 0 0 1 2 3 4 5 6
OUTPUT SUPPLY VOLTAGE [V]
Vin = 3V, EN = 0V
1
2
3
4
5
6
INPUT SUPPLY VOLTAGE [V]
Transient Characteristics (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1F, COUT = 2.2F, No CBYP, VIN = 4.0V, Load = 5mA (all plots measured with 3.0V VOUT)
10% to 90% Load Step (tr=1s) 10% to 90% Load Step (tr=1s) 10% to 90% Load Step (tr=1s)
3.5V - 4.5V Line Step (tr=1s)
3.5V - 4.5V Line Step (tr=1s)
3.5V - 4.5V Line Step (tr=1s)
Enable Response
Enable Response
Disable Response
(c) 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
CALIFORNIA MICRO DEVICES
Power-up Power-up
Preliminary CM3019
Power-down
Power Supply Ripple Rejection and Noise (nominal conditions unless specified otherwise)
Nominal Conditions: CIN = 1F, VIN = 4.0V, PSRR measured with 50mV pk-pk sin wave on VIN. (all plots measured with 3.0V VOUT)
Pow er Supply Ripple Reje ction [dB]
Power Supply Ripple Rejection [dB]
90
90 100uA Load 80 70 100mA Load 60 PSRR[dB] 50 500mA Load 40 30 20 10 0 10 100 1000 Fre que ncy [Hz] 10000 100000 Cout=10uF, Cbyp=100nF
PSRR [dB]
5mA Load
80 70
5mA Load 100uA Load 100mA Load
60 50 40 30 20 10 0 10 100 1000 Frequency [Hz] 10000 100000 500mA Load
Cout=2.2uF, Cbyp=100nF
(c) 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
CALIFORNIA MICRO DEVICES
Power Supply Ripple Rejection [dB]
90 80 70 60 50 500mA Load 40 30 20 10 0 10 100 1000 Frequency [Hz] 10000 100000 NO OUTPUT CAP, Cbyp=100nF 5mA Load 100uA Load 100mA Load
Preliminary CM3019
Ouput noise spectral density (100uA Load)
1.E-06
En[uV/rootHz]
PSRR [dB]
1.E-07
Cout = 10uF, Cbyp = 100nF 1.E-08 1.E+01
1.E+02
1.E+03 Frequency [Hz]
1.E+04
1.E+05
(c) 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
CALIFORNIA MICRO DEVICES
Preliminary CM3019
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
50 40
OUTPUT CHANGE [mV]
VOUT vs. Temperature
50 40
OUTPUT CHANGE [mV]
30 20 10 0 -10 -20 -30 -40 -50 0 25 50 75
o
30 20 10 0 -10 -20 -30 -40 -50 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE [oC]
100
125
TEMPERATURE [ C]
IGND vs. Temperature
300
GROUND CURRENT [uA]
250 200 150 100 50 0 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE [oC]
(c) 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

▲Up To Search▲

Price & Availability of CM3019-33ST

	To Download CM3019-33ST Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .