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 165µA 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 Lead-free version available • • • • • • • • • • • 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 housed in a 5-pin SOT23 package and is ideal for space critical applications. It is available with optional lead-free finishing. Typical Application Circuit Simplified Electrical Schematic Reverse Current Protection CM3016-48 IN IN EN CIN + 1µF OUT OUT COUT BYP EN OUT IN GND + 2.2µF CBYP 100nF Current Limit VREF + BYP AMP Fast Power-Up + EN - EN Enable Control Thermal Overload GND © 2004 California Micro Devices Corp. All rights reserved. 12/22/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com V2.XX 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 Standard Finish Lead-free Finish Pins Package Ordering Part Number1 Part Marking Ordering Part Number1 Part Marking 5 SOT23 CM3016-48ST CA48 CM3016-48SO CR48 Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. V2.xx 2 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 12/22/04 CM3016-48 Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS [GND - 0.6] to [+6.0] [GND - 0.6] to [VIN + 0.6] [GND - 0.6] to [VIN + 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 V2.XX 12/22/04 430 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 % % 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 with EN tied to GND (Disable Mode): 0.01 1 µA RDROP IGND VEN Enable Voltage Regulator becomes enabled VDIS Disable Voltage Regulator enters shutdown 1.5 V 0.4 0.18 V V 0.01 µA 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; COUT = 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 VOUT < 0.5V 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 SOT23-5 θJA MINIMUM FOOTPRINT θJA 1" SQUARE 2OZ. COPPER 220°C/W 170°C/W V2.xx 4 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 12/22/04 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 Load Regulation Dropout Voltage (Vout=4.7V) DROPOUT [mV] 4.775 4.750 4.725 Foldback Current Limiting 500 5.0 400 4.0 OUTPUT VOLTAGE [V] 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 Line Regulation Line Regulation OOUTPUT VOLTAGE [V] OUTPUT VOLTAGE [V] 1mA Load 4.75 4.74 200mA Load 4.73 4.72 4.71 5.0 4.5 4.0 3.5 3.0 1mA Load 5.2 5.7 1000 1200 900 800 700 600 500 0 4.7 800 Enable Voltage Threshold 2.5 2.0 1.5 1.0 0.5 0.0 4.70 600 1000 THRESHOLD [mV] 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. Output 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] Input Supply Current vs. Voltage Input Supply Current vs. Voltage 1500 1000 Vout = 0V, EN = 0V 500 0 1 2 3 4 3 4 5 6 10000 5 6 Vout = 4.75V, EN = 0V 2500 OUTPUT SUPPLY CURRENT [uA] 2000 INPUT SUPPLY VOLTAGE [V] 2 Output Supply Current vs. Voltage 3000 INPUT SUPPLY CURRENT [nA] INPUT SUPPLY CURRENT [nA] 2500 0 1 OUTPUT SUPPLY VOLTAGE [V] 2000 1500 1000 500 0 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] V2.XX 12/22/04 430 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 V2.xx 6 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 12/22/04 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 = 175mV) PSRR (VIN-VOUT = 200mV) 80 80 70 70 0.1mA 60 60 0.1mA PSRR [dB] 40 5mA PSRR [dB] 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] V2.XX 12/22/04 430 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 60 PSRR [dB] 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] V2.xx 8 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 12/22/04 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 80 100 120 140 120 160 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 9 TEMPERATURE [oC] -40 0 40 80 TEMPERATURE [oC] V2.XX 12/22/04 CM3016-48 Mechanical Details The CM3016-48 is available in a 5-pin SOT23 package. Dimensions for this package is presented below. SOT23-5 Mechanical Specifications Dimensions for CM3016-48ST/SO 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. V2.xx 10 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 12/22/04