CM3015 CALMIRCO | Alldatasheet
Document overview
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- PDF pages: 14
Technical content
Features
300mA output current capability
- 300mA peak in SOT-23 package
- 300mA continuous in MSOP package 300mV 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
Applications
Notebook and palmtop computers Cell phones and battery powered devices Consumer and personal electronics PC Card VCC and VPP regulation and switching CM3015 Regulator Family * For other output voltages, please consult factory. Product Description The CM3015 is a CMOS linear voltage regulator with low quiescent current, very low dropout voltage and better than 1% fixed output voltage accuracy. The CM3015 ground current is typically 150µA at light loads and only 165µA at 300mA. Load regulation of 0.25% is maintained for peak cur- rents up to 300mA. This is useful for supplying in-rush currents during power-up and transient conditions. The continuous output current is determined by power dis- sipation, 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 and the supply current will drop to near zero. The CM3015 also features reverse current protection. This protects the device by blocking the pass transis- tor’s parasitic diode when the output voltage is forced higher than the input. The device also incorporates overload current limiting and high temperature thermal shutdown protection. For low noise performance and increased power sup- ply ripple rejection, a bypass capacitor can be con- nected to the BYP pin. Connecting this capacitor will not significantly delay the speed of power-up. To reduce board cost and layout size the CM3015 was designed to be stable with or without any output capac- itor. This includes tiny, low ESR ceramic capacitors. The CM3015 is available in a low profile, 8-lead MSOP package and 5 and 6-lead SOT23 packages making it ideal for space critical applications. PRODUCT OUTPUT VOLTAGE* CM3015-00 Adjustable CM3015-12 1.2V CM3015-15 1.5V CM3015-18 1.8V CM3015-25 2.5V CM3015-28 2.8V CM3015-30 3.0V CM3015-33 3.3V Block Diagram EN IN GND OUT BYP VREF AMP EN Current Limit Reverse Current Protection Fast Power-Up Enable Control Thermal Overload Active Pulldown VSENSE* * Adjustable output version only
© 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com 09/14/04 CM3015 PRELIMINARY Note 1: Tantalum, electrolytic or low cost ceramic capacitors may be used. PIN DESCRIPTIONS SOT23-5 PIN(S) SOT23-6 PIN(S) MSOP-8 PIN(S) NAME
DESCRIPTION
VIN 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. Other- wise, an input filter capacitor of about 1-10µF will ensure adequate filter- ing. 5-8 GND The negative reference for all voltages. EN Enable input. When this input is taken low (< 0.4V), the regulator is dis- abled. In this state, the supply current will drop to near zero. BYP Reference Bypass Pin. Connect to an external capacitor for noise reduc- tion. A 10nF-100nF size ceramic capacitor is recommended. VSENSE This pin sets VOUT with an external divider: VOUT = VSENSE(1+ R1/R2). R1 is the upper resistor, like the internal divider shown on the block dia- gram on page 1. VOUT VOUT is the output voltage used to power the load. An output capacitor may not be required for stability, but its use can improve transient response, noise performance and power supply ripple rejection for fre- quencies over ~100kHz (see note 1). VIN GND EN VOUT SENSE BYP CC00 TOP VIEW PACKAGE / PINOUT DIAGRAM (Note 1) Notes: VIN GND EN VOUT BYP CCnn2 TOP VIEW EN VIN VOUT BYP GND GND GND GND TOP VIEW 5-PIN SOT23 CM3015-12ST,-15ST, -18ST,-25ST,-30ST,-33ST 6-PIN SOT23 CM3015-00ST 8-PIN MSOP CM3015-12MA,-15MA, -18MA,-25MA,-30MA,-33MA 8-PIN MSOP CM3015-00MA EN VIN VOUT VSENSE GND GND GND GND TOP VIEW CM30 15nn2 CM30 1500 2) See Ordering Information section for part marking details. 1) These drawings are not to scale.
© 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com CM3015 PRELIMINARY
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. Specifications Note 1: Tantalum, electrolytic or low cost ceramic capacitors may be used. Note 2: VOUT + 1V < VIN & 2.5V < VIN < 6V, IOUT = 1mA, CIN = 2.2µF, TJ = 25°C, COUT = 2.2µF, VSD = 1.5V, unless specified other- wise. Bold values indicate -40°C < TJ < 125°C PART NUMBERING INFORMATION Pins Package Ordering Part Number1 Part Marking SOT23-6 CM3015-00ST CC00 SOT23-5 CM3015-12ST CC12 SOT23-5 CM3015-15ST CC15 SOT23-5 CM3015-18ST CC18 SOT23-5 CM3015-25ST CC25 SOT23-5 CM3015-28ST CC28 SOT23-5 CM3015-30ST CC30 SOT23-5 CM3015-33ST CC33 MSOP-8 CM3015-00MA CM301500 MSOP-8 CM3015-12MA CM301512 MSOP-8 CM3015-15MA CM301515 MSOP-8 CM3015-18MA CM301518 MSOP-8 CM3015-25MA CM301525 MSOP-8 CM3015-28MA CM301528 MSOP-8 CM3015-30MA CM301530 MSOP-8 CM3015-33MA CM301533 ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS ESD Protection (HBM) +2000 V Pin Voltages VIN EN VOUT [GND - 0.6] to [VCC + 0.6] [GND - 0.6] to [VCC + 0.6] V V V Storage Temperature Range -40 to +150 Operating Temperature Range, Junction 0 to +150 Power Dissipation (Notes 1,2) Internally Limited W STANDARD OPERATING CONDITIONS PARAMETER RATING UNITS VIN 2.2 to 6.0 V Ambient Operating Temperature Range -40 to +85 Load Current 0 to 300 mA CEXT (notes 1 and 2) 0 to 50 µF
© 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com 09/14/04 CM3015 PRELIMINARY Specifications (cont’d) Note 1: VOUT + 1V < VIN & 2.5V < VIN < 6V, IOUT = 1mA, CIN = 2.2µF, TJ = 25°C, COUT = 2.2µF, VSD = 1.5V, unless specified other- wise. Bold values indicate -40°C < TJ < 125°C Note 2: Regulation voltages and dropout resistance measured at constant junction temperature using low duty cycle pulse testing. Note 3: Line regulation is displayed as the average regulation across the full operating range measured in %/V. ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT S VOUT Regulator Output Voltage TA = 25°C 0°C<TJ<125°C -40°C<TJ<125°C VR LINE Line Regulation VOUT + 1V < VIN & 2.5V < VIN < 6V 0.1 0.2 0.4 %/V VR LOAD Load Regulation 0mA ≤ IOUT ≤ 150mA; VIN = VOUT + 1V; Note 2 0.1 0.25 0.50 VSENSE Reference Voltage TA = 25°C 1.20 V RDROP Dropout Resistance 1mA ≤ ILOAD ≤ 300mA; VIN = VOUT(nominal) -100mV 0.7 1.0 1.2 Ω IGND Ground Current with EN tied to VIN; ILOAD = 1mA 150 200 µA with EN tied to VIN; ILOAD = 350mA 165 250 µA with EN tied to GND (Disable Mode) 0.01 µA VEN Enable Voltage Regulator enabled 1.5 V VDIS Disable Voltage Regulator shutdown 0.40 0.18 V IEN Enable Input Current 0.01 µA PSSR Power Supply Ripple Rejection f=1kHz dB ENOISE Output Noise Voltage 10Hz-100kHz; CBYP = 0.1µF µVrms tON VOUT Turn-on Time CBYP = 0µF µs CBYP = 0.1µF 100 µs ILIM Overload Current Limit 800 mA ISC Short Circuit Current Limit VOUT < 0.5V 550 mA TJSD Thermal Shutdown Junction Temperature 165 THYST Thermal Hysteresis THERMAL PERFORMANCE PACKAGE θJA MINIMUM FOOTPRINT θJA 1" SQUARE 2OZ. COPPER SOT23-5 / SOT23-6 220°C/W 170°C/W MSOP-8 Fused 160°C/W 70°C/W
© 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com CM3015 PRELIMINARY
Application Information
Figure 32. Adjustable Regulator Application Example resistance can be supplied by the ESR of the caps. gain generally increases with increasing output current. calls for a tiny, low-ESR capacitor, it will work just fine.
© 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com 09/14/04 CM3015 PRELIMINARY Mechanical Details CM3015 devices are available in a 5-lead SOT23 package, a 6-lead SOT23 package and an 8-lead MSOP package. Dimensions are presented below and on the following pages. SOT23-5 Mechanical Specifications The dimensions for the 3-lead SOT23 package are presented below. PACKAGE DIMENSIONS Package SOT23-5 JEDEC No. MO-178 (Var. AA) Pins/Leads Dimensions Millimeters Inches Min Max Min Max A 1.45 0.0571 0.00 0.15 0.0000 0.0059 b 0.30 0.50 0.0118 0.0197 c 0.08 0.22 0.0031 0.0087 D 2.75 3.05 0.1083 0.1201 E 2.60 3.00 0.1024 0.1181 1.45 1.75 0.0571 0.0689 e
0.95 BSC
0.0374 BSC
1.90 BSC
0.0748 BSC
L 0.30 0.60 0.0118 0.0236
0.60 REF
0.0236 REF
# per tape and reel 3000 pieces Controlling dimension: millimeters TOP VIEW e E1 E b Mechanical Package Diagrams A SIDE VIEW D END VIEW c L
© 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com CM3015 PRELIMINARY Mechanical Details (cont’d) SOT23-6 Mechanical Specifications The dimensions for the 6-lead SOT23 package are presented below. PACKAGE DIMENSIONS Package SOT23-6 JEDEC No. MO-178 (Var. AB) Pins/Leads Dimensions Millimeters Inches Min Max Min Max A 1.45 0.0571 0.00 0.15 0.0000 0.0059 b 0.30 0.50 0.0118 0.0197 c 0.08 0.22 0.0031 0.0087 D 2.75 3.05 0.1083 0.1201 E 2.60 3.00 0.1024 0.1181 1.45 1.75 0.0571 0.0689 e L 0.30 0.60 0.0118 0.0236 0.0236REF # per tape and reel 3000 pieces Controlling dimension: millimeters TOP VIEW e E1 E b Pin 1 Marking Mechanical Package Diagrams A SIDE VIEW D END VIEW c L
© 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com 09/14/04 CM3015 PRELIMINARY Mechanical Details (cont’d) MSOP-8 Mechanical Specifications: The dimensions for the 6-lead SOT23 package are presented below. * This is an approximate amount which may vary. Package Dimensions for MSOP-8 PACKAGE DIMENSIONS Package MSOP Pins Dimensions Millimeters Inches Min Max Min Max A 0.87 1.17 0.034 0.046 0.05 0.25 0.002 0.010 B 0.30 (typ) 0.012 (typ) C 0.18 0.007 D 2.90 3.10 0.114 0.122 E 2.90 3.10 0.114 0.122 e
0.65 BSC
0.025 BSC
H 4.78 4.98 0.188 0.196 L 0.52 0.54 0.017 0.025 # per tube 80 pieces* # per tape and reel 4000 pieces Controlling dimension: inches Mechanical Package Diagrams E D H L END VIEW C e B A SEATING PLANE SIDE VIEW TOP VIEW Pin 1 Marking