NCP700 Ultra Low Noise, High PSSR, BiCMOS RF LDO Regulator Noise sensitive RF applications such as Power Amplifiers in cell phones and precision instrumentation require very clean power supplies. The NCP700 is 150 mA LDO that provides the engineer with a very stable, accurate voltage with ultra low noise and very high Power Supply Rejection Ratio (PSRR) suitable for RF applications. In order to optimize performance for battery operated portable applications, the NCP700 employs an advanced BiCMOS process to combine the benefits of low noise and superior dynamic performance of bipolar elements with very low ground current consumption at full loads offered by CMOS. Furthermore, in order to provide a small footprint for space-conscious applications, the NCP700 is stable with small, low value capacitors and is available in a very small DFN6 2x2.2 package. •Output Voltage Options: - 1.8 V, 2.8 V, 3.0 V - Contact Factory for Other Voltage Options •Ultra Low Noise (typ 15 mVrms) •Very High PSRR (typ 80 dB) •Stable with Ceramic Output Capacitors as low as 1 mF •Low Sleep Mode Current (max 1 mA) •Active Discharge Circuit •Current Limit Protection •Thermal Shutdown Protection •These are Pb-Free Devices 6 PIN DFN MN SUFFIX CASE 506BA XXMG G PIN ASSIGNMENT CE 1 6 Cnoise GND 2 5 GND Vin 3 4 Vout (Top View) ORDERING INFORMATION •Cellular Telephones (Power Amplifier) •Noise Sensitive Applications (Video, Audio) •Analog Power Supplies •PDAs / Palmtops / Organizers / GPS •Battery Supplied Devices See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. Vout Vin Cin ÉÉ ÉÉ 1 (Note: Microdot may be in either location) Typical Applications Vout NCP700 CE Cnoise GND MARKING DIAGRAM 6 XX = Specific Device Code M = Date Code G = Pb-Free Package Features Vin http://onsemi.com Cnoise Cout Figure 1. Typical Application Schematic © Semiconductor Components Industries, LLC, 2007 May, 2007 - Rev. 0 1 Publication Order Number: NCP700/D NCP700 Vin Vout - Current Limit + Bandgap Reference Voltage Cnoise CE Active Discharge GND Figure 2. Simplified Block Diagram PIN FUNCTION DESCRIPTION DFN6 2x2.2 Pin No. Pin Name Description 1 CE Chip Enable: This pin allows on/off control of the regulator. To disable the device, connect to GND. If this function is not in use, connect to Vin. Internal 5 MW Pull Down resistor is connected between CE and GND. 2, 5, EPAD GND 3 Vin Power Supply Input Voltage 4 Vout Regulated Output Voltage 6 Cnoise Power Supply Ground (Pins are fused for the DFN package) Noise reduction pin. (Connect 100 nF or 10 nF capacitor to GND) MAXIMUM RATINGS Rating Symbol Value Unit Input Voltage (Note 1) Vin -0.3 V to 6 V V Chip Enable Voltage VCE -0.3 V to Vin +0.3 V V VCnoise -0.3 V to Vin +0.3 V V Noise Reduction Voltage Output Voltage Maximum Junction Temperature (Note 1) Storage Temperature Range Vout -0.3 V to Vin +0.3 V V TJ(max) 150 °C TSTG -55 to 150 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. NOTE: This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL-STD-883, Method 3015 Machine Model Method 200 V THERMAL CHARACTERISTICS Rating Symbol Package Thermal Resistance, DFN6: (Note 1) Junction-to-Lead (pin 2) Junction-to-Ambient RθJA 1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area http://onsemi.com 2 Value Unit °C/W 37 120 NCP700 ELECTRICAL CHARACTERISTICS (Vin = Vout + 1.0 V, VCE = 1.2 V, Cin = 0.1 mF, Cout = 1 mF, Cnoise = 10 nF, TA = -40°C to 85°C, unless otherwise specified (Note 2)) Test Conditions Characteristic Symbol Min Typ Max Unit Vin 2.5 - 5.5 V REGULATOR OUTPUT Input Voltage Output Voltage (Note 3) 1.8 V 2.8 V 3.0 V Vin = (Vout +1.0 V) to 5.5 V Iout = 1 mA Vout 1.764 2.744 2.940 - 1.836 2.856 3.060 V Output Voltage (Note 3) 1.8 V 2.8 V 3.0 V Vin = (Vout +1.0 V) to 5.5 V Iout = 1 mA to 150 mA Vout 1.746 2.716 2.910 - 1.854 2.884 3.090 V - 80 80 65 - Power Supply Ripple Rejection Vin = Vout +1.0 V + 0.5 Vp- p Iout = 1 mA to 150 mA f = 120 Hz Cnoise = 100nF f = 1 kHz f = 10 kHz PSRR dB Line Regulation Vin = (Vout +1.0 V) to 5.5 V, Iout = 1 mA Regline -0.2 - 0.2 %/V Load Regulation Iout = 1 mA to 150 mA Regload - 12 25 mV Output Noise Voltage f = 10 Hz to 100 kHz Iout = 1 mA to 150 mA Cnoise = 100 nF Cnoise = 10 nF Vn - 15 20 - Output Current Limit Vout = Vout(nom) – 0.1 V ILIM 150 310 470 mA Output Short Circuit Current Vout = 0 V ISC 150 320 490 mA Iout = 150 mA VDO - 105 100 155 150 mV Ground Current Iout = 1 mA Iout = 150 mA IGND - 70 110 90 220 mA Disable Current VCE = 0 V IDIS - 0.1 1 mA Thermal Shutdown Threshold (Note 5) TSD - 150 - °C Thermal Shutdown Hysteresis (Note 5) TSH - 20 - °C Vth(CE) 1.2 - 0.4 - V RPD(CE) 2.5 5 10 MW Cnoise = 10 nF Cnoise = 100 nF ton - 0.4 4 - ms Iout = 1 mA Iout = 10 mA toff - 800 200 - ms Dropout Voltage (Note 4) 2.8 V 3.0 V mVrms GENERAL CHIP ENABLE Input Threshold Low High Internal Pull-Down Resistance (Note 6) TIMING Turn-on Time Iout = 150 mA Turn-of f Time Cnoise = 10 nF/100 nF 2. Performance guaranteed over the indicated operating temperature range by design and/or characterization, production tested at TJ = TA = 25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible. 3. Contact factory for other voltage options. 4. Measured when the output voltage falls 100 mV below the regulated voltage at Vin = Vout + 1.0 V If Vout < 2.5 V, then VDO = Vin - Vout at Vin = 2.5 V. 5. Guaranteed by design and characterization. 6. Expected to disable device when CE pin is floating. http://onsemi.com 3 NCP700 TYPICAL CHARACTERISTICS 2.820 1.815 Vout = 1.8 V Vout, OUTPUT VOLTAGE (V) Vout, OUTPUT VOLTAGE (V) 1.820 1.810 1.805 Iout = 1 mA 1.800 Iout = 150 mA 1.795 1.790 Vout = 2.8 V 2.810 2.805 Iout = 1 mA 2.800 Iout = 150 mA 2.795 2.790 2.785 1.785 1.780 -40 2.815 -20 0 20 40 60 80 100 2.780 -40 -20 0 20 40 60 80 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 3. Output Voltage vs. Temperature (Vout = 1.8 V) Figure 4. Output Voltage vs. Temperature (Vout = 2.8 V) 3.020 100 4.0 Vout = 3.0 V Vout, OUTPUT VOLTAGE (V) Vout, OUTPUT VOLTAGE (V) TA = 25°C 3.015 3.010 3.005 Iout = 1 mA 3.000 Iout = 150 mA 2.995 2.990 2.985 2.980 -40 3.5 Iout = 1 mA 3.0 Vout = 2.8 V 2.5 2.0 Vout = 1.8 V 1.5 1.0 0.5 0 -20 0 20 40 60 80 0 100 1 TA, AMBIENT TEMPERATURE (°C) 130 180 IGND, GROUND CURRENT (mA) IGND, GROUND CURRENT (mA) 200 Iout = 150 mA 110 100 90 80 Iout = 1 mA 70 60 50 -20 0 20 40 60 3 4 5 6 Figure 6. Output Voltage vs. Input Voltage 140 120 2 Vin, INPUT VOLTAGE (V) Figure 5. Output Voltage vs. Temperature (Vout = 3.0 V) 40 -40 Vout = 3.0 V 80 100 Vout = 3.0 V TA = 25°C 160 Vout = 2.8 V 140 Iout = 150 mA 120 100 Vout = 1.8 V 80 Iout = 1 mA 60 40 20 0 0 1 2 3 4 5 TA, AMBIENT TEMPERATURE (°C) Vin, INPUT VOLTAGE (V) Figure 7. Ground Current vs. Temperature Figure 8. Ground Current vs. Input Voltage http://onsemi.com 4 6 NCP700 TYPICAL CHARACTERISTICS 125 TA = 85°C VDO, DROPOUT VOLTAGE (mV) Vout = 2.8 V 115 110 TA = 25°C 105 100 95 TA = -40°C 90 85 80 75 0 25 50 75 100 125 ILIM, CURRENT LIMIT (mA) 110 105 TA = 25°C 100 95 TA = -40°C 90 85 80 75 0 25 50 75 100 125 150 Figure 9. Dropout Voltage vs. Output Current Figure 10. Dropout Voltage vs. Output Current 320 310 300 290 280 -40 -20 0 20 40 60 80 100 350 340 330 320 310 300 290 -40 -20 0 20 40 60 80 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 11. Current Limit vs. Temperature Figure 12. Short Circuit Current vs. Temperature 100 700 0 TA = 25°C Iout = 150 mA TA = 25°C Vn, NOISE DENSITY (nV/√Hz) -10 -20 -30 PSRR (dB) TA = 85°C 115 Iout, OUTPUT CURRENT (mA) 330 -40 -50 -60 Cnoise = 10 nF -80 -90 -100 Vout = 3.0 V Iout, OUTPUT CURRENT (mA) 340 -70 120 150 ISC, SHORT CIRCUIT CURRENT LIMIT (mA) VDO, DROPOUT VOLTAGE (mV) 125 120 Cnoise = 100 nF 600 Iout = 150 mA 500 Cnoise = 100 nF 400 300 200 100 0 10 100 1,000 10,000 100,000 10 100 1,000 10,000 100,000 f, FREQUENCY (Hz) FREQUENCY (Hz) Figure 13. PSRR vs. Frequency Figure 14. Noise Density vs. Frequency http://onsemi.com 5 NCP700 TYPICAL CHARACTERISTICS 4.2 V VCE 1 V/div 3.6 V Vin 500 mV/div TA = 25°C Vout = 1.8 V Iout = 150 mA Cout = 1 mF TA = 25°C Vout 1 V/div Vin = 4 V Iout = 150 mA Cnoise = 0 nF Vout 10 mV/div TIME (20 ms/div) TIME (100 ms/div) Figure 15. Enable Voltage and Output Voltage vs. Time (Start-Up) Figure 16. Line Transient Iout 100 mA/div Vout 50 mV/div Vin = 2.8 V Vout = 1.8 V Cout = 1 mF ESR of OUTPUT CAPACITOR (W) 10 TA = 25°C Unstable Region Vout = 3.0 V 1 Vout = 1.8 V Stable Region 0.1 Cout = 1 mF to 10 mF 0.01 0 25 50 75 100 125 TIME (40 ms/div) Iout, OUTPUT CURRENT (mA) Figure 17. Load Transient Figure 18. Output Capacitor ESR vs. Output Current http://onsemi.com 6 150 NCP700 APPLICATION INFORMATION General Output Noise The NCP700 is a 150 mA (current limited) linear regulator with a logic input for on/off control for the high speed turn-off output voltage. Access to the major contributor of noise within the integrated circuit is provided as the focus for noise reduction within the linear regulator system. The main contributor for noise present on the output pin Vout is the reference voltage node. This is because any noise which is generated at this node will be subsequently amplified through the error amplifier and the PMOS pass device. Access to the reference voltage node is supplied directly through the Cnoise pin. Noise can be reduced from a typical value of 20 mVrms by using 10 nF to 15 mVrms by using a 100 nF from the Cnoise pin to ground. A bypass capacitor is recommended for good noise performance and better load transient response. Power Up/Down During power up, the NCP700 maintains a high impedance output (Vout) until sufficient voltage is present on Vin to power the internal bandgap reference voltage. When sufficient voltage is supplied (approx 1.2 V), Vout will start to turn on (assume CE shorted to Vin), linearly increasing until the output regulation voltage has been reached. Active discharge circuitry has been implemented to insure a fast turn off time. Then CE goes low, the active discharge transistor turns on creating a fast discharge of the output voltage. Power to drive this circuitry is drawn from the output node. This is to maintain the lowest quiescent current when in the sleep mode (VCE = 0.4 V). This circuitry subsequently turns off when the output voltage discharges. Thermal Shutdown When the die temperature exceeds the Thermal Shutdown threshold, a Thermal Shutdown (TSD) event is detected and the output (Vout) is turned off. There is no effect from the active discharge circuitry. The IC will remain in this state until the die temperature moves below the shutdown threshold (150°C typical) minus the hysteresis factor (20°C typical). This feature provides protection from a catastrophic device failure due to accidental overheating. It is not intended to be used as a substitute for proper heat sinking. The maximum device power dissipation can be calculated by: CE (chip enable) The enable function is controller by the logic pin CE. The voltage threshold of this pin is set between 0.4 V and 1.2V. A voltage lower than 0.4 V guarantees the device is off. A voltage higher than 1.2 V guarantees the device is on. The NCP700 enters a sleep mode when in the off state drawing less than 1 mA of quiescent current. The device can be used as a simple regulator without use of the chip enable feature by tying the CE pin to the Vin pin. PD + TJ * TA R qJA Thermal resistance value versus copper area and package is shown in Figure 19. RqJA, THERMAL RESISTANCE JUNCTION-T O-AMBIENT (°C/W) 380 Current Limit Output Current is internally limited within the IC to a minimum of 150 mA. The design is set to a higher value to allow for variation in processing and the temperature coefficient of the parameter. The NCP700 will source this amount of current measured with a voltage 100 mV lower than the typical operating output voltage. The specification for short circuit current limit (@ Vout = 0V) is specified at 320 mA (typ). There is no additional circuitry to lower the current limit at low output voltages. This number is provided for informational purposes only. 330 280 TSOP-5 (1 oz) 230 TSOP-5 (2 oz) 180 DFN6 2x2.2 (1 oz) 130 DFN6 2x2.2 (2 oz) 80 0 Output Capacitor 100 200 300 400 PCB COPPER AREA The NCP700 has been designed to work with low ESR ceramic capacitors. There is no ESR lower limit for stability for the recommended 1 mF output capacitor. Stable region for Output capacitor ESR vs Output Current is shown in Figure18. 500 (mm2) Figure 19. RqJA vs. PCB Copper Area (TSOP-5 for comparison only) http://onsemi.com 7 600 700 NCP700 ORDERING INFORMATION Nominal Output Voltage Marking Package Shipping† NCP700MN180R2G 1.8 V LZ 3000 / Tape & Reel NCP700MN280R2G 2.8 V LX DFN6 2x2.2 Pb-Free NCP700MN300R2G 3.0 V LY Device †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. PACKAGE DIMENSIONS A B D ÉÉ ÉÉ ÉÉ PIN ONE REFERENCE 2X 0.10 C 6 PIN DFN, 2x2.2, 0.65P CASE 506BA-01 ISSUE O E NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.15 AND 0.20 mm FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. DIM A A1 b D D2 E E2 e K L L1 TOP VIEW 2X 0.10 C A 0.10 C MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 0.30 2.00 BSC 1.10 1.30 2.20 BSC 0.70 0.90 0.65 BSC 0.20 --0.25 0.35 0.00 0.10 7X 0.08 C SIDE VIEW A1 C SEATING PLANE 6X L1 D2 6X L e 3 1 E2 K 6 4 BOTTOM VIEW 6X b 0.10 C A B 0.05 C NOTE 3 The products described herein (NCP700), may be covered by one or more U.S. patents. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 http://onsemi.com 8 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP700/D