NCP4587 Product Preview 150 mA, Tri-Mode, LDO Linear Voltage Regulator The NCP4587 is a CMOS 150 mA LDO which switches to a low power mode under light current loads. The device automatically switches back to a fast response mode as the output load increases above 3 mA (typ.) or it can be placed in permanent fast mode through a mode select pin. The family is available in a variety of packages: SC−70, SOT23 and an ultra thin (0.4 mm) small 1.2 x 1.2 mm XDFN. http://onsemi.com MARKING DIAGRAMS Features • Operating Input Voltage Range: 1.4 V to 5.25 V • Output Voltage Range: 0.8 to 4.0 V (Available in 0.1 V steps) • Supply current: Low Power Mode – 1.0 mA • • • • • • • • Fast Mode – 55 mA Standby Mode – 0.1 mA Very Low Dropout: 120 mV Typ. at 150 mA (Vout > 2.6 V) ±1% Output Voltage Accuracy (VOUT > 2 V, TJ = 25°C) High PSRR: 70 dB at 1 kHz (Fast response mode) Line Regulation 0.02%/V Typ. Current Fold Back Protection Stable with Ceramic Capacitors Available in 1.2 x 1.2 XDFN, SC−70 and SOT23 Package These are Pb−Free Devices Typical Applications NCP4587x VIN C1 1m AE VOUT VOUT C2 1m CE XDFN6 CASE 711AA XXX MG G XX MM XX M SOT−23−5 CASE 1212 XX, XXX= Specific Device Code M, MM = Date Code A = Assembly Location Y = Year W = Work Week G = Pb−Free Package • Battery Powered Equipments • Portable Communication Equipments • Cameras, Image Sensors and Camcorders VIN SC−70 CASE 419A (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 5 of this data sheet. GND Figure 1. Typical Application Schematic This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice. © Semiconductor Components Industries, LLC, 2010 November, 2010 − Rev. P0 1 Publication Order Number: NCP4587/D NCP4587 AE AE VIN VOUT VIN VOUT Vref Vref Current Limit CE Current Limit CE GND GND NCP4587Hxxxx NCP4587Dxxxx Figure 2. Simplified Schematic Block Diagram PIN FUNCTION DESCRIPTION Pin No. XDFN Pin No. SC−70 Pin No. SOT23 Pin Name 4 4 1 VIN Input pin 2 2 2 GND Ground 3 5 3 CE 6 3 5 VOUT 1 1 4 AE Auto Eco Pin 5 − − NC No connection Description Chip enable pin (active “H”) Output pin ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit VIN 6.0 V Output Voltage VOUT −0.3 to VIN + 0.3 V Chip Enable Input VCE −0.3 to 6.0 V Auto Eco Input VAE −0.3 to 6.0 V Output Current IOUT 400 mA PD 400 mW Input Voltage (Note 1) Power Dissipation XDFN Power Dissipation SC−70 380 Power Dissipation SOT23 420 Maximum Junction Temperature TJ(MAX) 150 °C TSTG −55 to 125 °C ESD Capability, Human Body Model (Note 2) ESDHBM 2000 V ESD Capability, Machine Model (Note 2) ESDMM 200 V Storage Temperature 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. 1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area. 2. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114) ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115) Latchup Current Maximum Rating tested per JEDEC standard: JESD78. http://onsemi.com 2 NCP4587 THERMAL CHARACTERISTICS Rating Symbol Thermal Characteristics, XDFN Thermal Resistance, Junction−to−Air RqJA Thermal Characteristics, SOT23 Thermal Resistance, Junction−to−Air RqJA Thermal Characteristics, SC−70 Thermal Resistance, Junction−to−Air RqJA Value Unit °C/W 250 °C/W 238 °C/W 263 ELECTRICAL CHARACTERISTICS −40°C ≤ TA ≤ 85°C; VIN = VOUT(NOM) + 1 V or 2.5 V, whichever is greater; IOUT = 1 mA, CIN = COUT = 0.47 mF, unless otherwise noted. Typical values are at TA = +25°C. Parameter Test Conditions Symbol Min (Note 3) VIN VOUT Operating Input Voltage Output Voltage Output Voltage Temp. Coefficient Line Regulation Max Unit 1.4 5.25 V TA = +25 °C, IOUT = 5 mA VOUT > 2 V x0.99 x1.01 V VOUT ≤ 2 V −20 20 mV −40°C ≤ TA ≤ 85°C, IOUT = 5 mA VOUT > 2 V x0.975 x1.015 V VOUT ≤ 2 V −50 30 mV TA = −40 to 85°C VIN = VOUT + 0.5 V to 5 V, VIN ≥ 1.4 V IOUT = 1 mA, (Low Power Mode) IOUT = 1 mA to 10 mA LineReg 0.50 VOUT > 2.0 V 0.02 LineReg VOUT ≤ 2.0 V −1.0 −20 IOUT = 10 mA to 150 mA Dropout Voltage IOUT = 150 mA 0.8 V ≤ VOUT < 0.9 V 18 VDO 0.9 V ≤ VOUT < 1.0 V Supply Current mV 40 mV (Note 4) V 1.5 V ≤ VOUT < 2.6 V 0.19 0.25 0.12 0.18 VOUT ≤ 1.85 V 150 mA ISC 50 IQ 1.0 4.0 1.5 4.0 VOUT > 1.85 V IOUT = 10 mA, Fast Mode IGND 55 VCE = 0 V, TJ = 25°C ISTB 0.1 Fast Mode Switch−Over Current IOUT = light to heavy load IOUTH Low Power Switch−Over Current IOUT = heavy to light load IOUTL 1.0 CE Pin Threshold Voltage CE Input Voltage “H” VCEH 1.0 CE Input Voltage “L” VCEL Standby Current 20 0.4 IOUT IOUT = 0 mA, Low Power Mode (Note 5) % (Note 4) 2.6 V ≤ VOUT < 4.0 V Quiescent Current 1.0 0.24 VOUT = 0 V CE Pull Down Current %/V 0.20 1.0 V ≤ VOUT < 1.5 V Output Current Short Current Limit ppm/°C ±50 IOUT = 10 mA, (Fast Mode) Load Regulation Typ ICEPD mA mA mA 1 mA 8.0 mA 2.0 mA V 0.4 0.1 mA 3. The maximum Input Voltage of the ELECTRICAL CHARACTERISTICS is 5.25 V. In case of exceeding this specification, the IC must be operated on condition that the Input Voltage is up to 5.5V and the total operating time is within 500 hrs. 4. VIN > 1.4 V condition is dominant against this specification 5. The value of quiescent current is excluding the pull−down current of CE and AE pin http://onsemi.com 3 NCP4587 ELECTRICAL CHARACTERISTICS −40°C ≤ TA ≤ 85°C; VIN = VOUT(NOM) + 1 V or 2.5 V, whichever is greater; IOUT = 1 mA, CIN = COUT = 0.47 mF, unless otherwise noted. Typical values are at TA = +25°C. Parameter AE Pin Threshold Voltage Test Conditions Symbol Min AE Input Voltage “H” VAEH 1.0 AE Input Voltage “L” VAEL AE Pull Down Current Power Supply Rejection Ratio Output Noise Voltage Low Output Nch Tr. On Resistance Typ Max Unit V 0.4 IAEPD 0.1 mA VIN = VOUT + 1 V or 2.2 V whichever is higher, DVIN = 0.2 Vpk−pk, IOUT = 30 mA, f = 1 kHz, Fast Mode PSRR 70 dB VOUT = 1.2 V, IOUT = 30 mA, f = 10 Hz to 100 kHz VN 115 mVrms VIN = 4 V, VCE = 0 V RLOW 50 W 3. The maximum Input Voltage of the ELECTRICAL CHARACTERISTICS is 5.25 V. In case of exceeding this specification, the IC must be operated on condition that the Input Voltage is up to 5.5V and the total operating time is within 500 hrs. 4. VIN > 1.4 V condition is dominant against this specification 5. The value of quiescent current is excluding the pull−down current of CE and AE pin http://onsemi.com 4 NCP4587 APPLICATION INFORMATION A typical application circuit for NCP4587 series is shown in Figure 3. NCP4587x VIN VIN C1 1m VOUT Output Discharger VOUT The D version includes a transistor between VOUT and GND that is used for faster discharging of the output capacitor. This function is activated when the IC goes into disable mode. C2 1m CE AE is above logic high level. Enable pin has internal pull down current source. If enable function is not needed connect CE pin to VIN. GND Auto ECO and Fast Mode The NCP4587 has two operation modes that have impact on supply current and transient response at low output current. These two modes can be selected by AE pin. If AE pin is at low level Auto ECO mode is available. Please, see supply current vs. output current charts. Figure 3. Typical Application Schematic Thermal Input Decoupling Capacitor (C1) As power across the IC increases, it might become necessary to provide some thermal relief. The maximum power dissipation supported by the device is dependent upon board design and layout. Mounting pad configuration on the PCB, the board material, and also the ambient temperature affect the rate of temperature rise for the part. That is to say, when the device has good thermal conductivity through the PCB, the junction temperature will be relatively low with high power dissipation applications. A 1 mF ceramic input decoupling capacitor should be connected as close as possible to the input and ground pin of the NCP4587. Higher values and lower ESR improves line transient response. Output Decoupling Capacitor (C2) A 1 mF ceramic output decoupling capacitor is sufficient to achieve stable operation of the IC. If tantalum capacitor is used, and its ESR is high, the loop oscillation may result. If output capacitor is composed from few ceramic capacitors in parallel, the operation can be unstable. The capacitor should be connected as close as possible to the output and ground pin. Larger values and lower ESR improves dynamic parameters. PCB layout Make VIN and GND line sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect capacitors C1 and C2 as close as possible to the IC, and make wiring as short as possible. Enable Operation Enable pin CE may be used for turning the regulator on and off. The regulator is switched on when CE pin voltage ORDERING INFORMATION Nominal Output Voltage Description Marking Package Shipping† NCP4587DMU12TCG 1.2 V Auto discharge YE XDFN (Pb−Free) 5000 / Tape & Reel NCP4587DMU18TCG 1.8 V Auto discharge YL XDFN (Pb−Free) 5000 / Tape & Reel NCP4587DMU28TCG 2.8 V Auto discharge YW XDFN (Pb−Free) 5000 / Tape & Reel NCP4587DMU30TCG 3.0 V Auto discharge YY XDFN (Pb−Free) 5000 / Tape & Reel NCP4587DMU33TCG 3.3 V Auto discharge ZB XDFN (Pb−Free) 5000 / Tape & Reel 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. NOTE: To order other package and voltage variants, please contact your ON Semiconductor sales representative. http://onsemi.com 5 NCP4587 PACKAGE DIMENSIONS SC−88A (SC−70−5/SOT−353) CASE 419A−02 ISSUE K A NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. 419A−01 OBSOLETE. NEW STANDARD 419A−02. 4. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. G 5 4 −B− S 1 2 DIM A B C D G H J K N S 3 D 5 PL 0.2 (0.008) M B M N J C H K http://onsemi.com 6 INCHES MIN MAX 0.071 0.087 0.045 0.053 0.031 0.043 0.004 0.012 0.026 BSC --0.004 0.004 0.010 0.004 0.012 0.008 REF 0.079 0.087 MILLIMETERS MIN MAX 1.80 2.20 1.15 1.35 0.80 1.10 0.10 0.30 0.65 BSC --0.10 0.10 0.25 0.10 0.30 0.20 REF 2.00 2.20 NCP4587 PACKAGE DIMENSIONS XDFN6 1.2x1.2, 0.4P CASE 711AA−01 ISSUE O PIN ONE REFERENCE 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 0.25mm FROM TERMINAL TIPS. 4. COPLANARITY APPLIES TO ALL OF THE TERMINALS. A B D ÍÍÍ ÍÍÍ ÍÍÍ E DIM A A1 b C D E e L 0.05 C 2X 2X 0.05 C TOP VIEW A 0.05 C 0.05 C A1 SIDE VIEW NOTE 4 C MILLIMETERS MIN MAX --0.40 0.00 0.05 0.13 0.23 0.20 0.30 1.20 BSC 1.20 BSC 0.40 BSC 0.37 0.48 RECOMMENDED MOUNTING FOOTPRINT* SEATING PLANE 6X 6X 0.22 0.66 PACKAGE OUTLINE e 1 3 1.50 C 6X L 0.40 PITCH 6 4 DIMENSIONS: MILLIMETERS 6X 0.05 BOTTOM VIEW *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. b M C A B NOTE 3 http://onsemi.com 7 NCP4587 PACKAGE DIMENSIONS SOT−23 CASE 1212−01 ISSUE O A 5 E 1 A2 0.05 S B D A1 4 2 NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DATUM C IS A SEATING PLANE. L 3 E1 L1 B e e1 C 5X 0.10 M C B S A S C DIM A1 A2 B C D E E1 e e1 L L1 MILLIMETERS MIN MAX 0.00 0.10 1.00 1.30 0.30 0.50 0.10 0.25 2.80 3.00 2.50 3.10 1.50 1.80 0.95 BSC 1.90 BSC 0.20 --0.45 0.75 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. 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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 NCP4587/D