AMC887-2.0DBT

AMC8878/8879 www.addmtek.com DESCRIPTION The AMC8878/8879 series is a low noise, low dropout linear regulator operating from 2.5V to 6.5V input. An external capacitor can be connected to the bypass pin to lower the output noise level to 30µVRMS. Designed with a P-channel MOSFET output transistor, the AMC8878/8879 consume a low supply current, independent of the load current and dropout voltage. The internal thermal shut down circuit will limits the junction temperature to below 150°C. Other features include thermal protection, reverse battery protection and output current limit. Both AMC8878 and AMC8879 come in a miniature 5-pin SOT-23 package. LOW NOISE 150mA LOW DROPOUT REGULATOR FEATURES Low output noise: 30µVRMS Industry standard’2982 pin assignment (AMC8878) Output voltage precision of ±1.4% accuracy Very low dropout voltage: 50mV/50mA and 165mV/150mA On/Off control Low IQ: 1.6µA Short circuit protection Internal thermal overload protection Available in surface mount 5-pin SOT-23 package. Enhanced pin-to-pin Compatible to the MAX8878 (AMC8878) and TK111xxS (AMC8879) series. PACKAGE PIN OUT VIN 1 5 APPLICATIONS Cellular Telephones Battery Powered Systems Hand-Held Instruments Pagers Personal Data Assistance (PDA) PCMCIA Cards VOUT SHDN 1 GND 2 5 VIN GND 2 SHDN 3 4 BP BP 3 4 VOUT AMC8878 5-Pin Plastic SOT-23 Surface Mount (Top View) AMC8879 ORDER INFORMATION Plastic SOT-23 5-pin O O 0 C ≤ TA≤ 70 C AMC8878-X.XDBT 0OC ≤ TA≤ 70OC AMC8878-X.XDBTF(Lead Free) Temperature Range DBT Plastic SOT-23 5-pin AMC8879-X.XDBT AMC8879-X.XDBTF(Lead Free) DBT EXPANDED ORDER INFORMATION Device Name AMC887‫8.1-ڤ‬DBT AMC887‫0.2-ڤ‬DBT AMC887‫5.2-ڤ‬DBT AMC887‫8.2-ڤ‬DBT AMC887‫58.2-ڤ‬DBT AMC887‫0.3-ڤ‬DBT AMC887‫2.3-ڤ‬DBT AMC887‫3.3-ڤ‬DBT AMC887‫0.5-ڤ‬DBT Copyright © 2006 ADDtek Corp. Output Voltage 1.8V 2.0V 2.5V 2.8V 2.85V 3.0V 3.2V 3.3V 5.0V 1 Symbolization AMC8878 AB18 AB20 AB25 AB28 AB2U AB30 AB32 AB33 AB50 AMC8879 AC18 AC20 AC25 AC28 AC2U AC30 AC32 AC33 AC50 DD067_G -- JUNE 2006 AMC8878/8879 TYPICAL APPLICATION VIN 2.5V to 6V VOUT CIN 1µF AMC8878 AMC8879 COUT 1µF ON OFF CBP 0.01µF ABSOLUTE MAXIMUM RATINGS Input Voltage, VIN Operating Junction Temperature, TJ Storage Temperature Range Lead Temperature (soldering, 10 seconds) Power Dissipation, PD @ TA = 70 OC Note: Exceeding these ratings could cause damage to the device. negative out of the specified terminal. (Note) 12V 150 OC -65 OC to +150 OC +260 OC 150 mW All voltages are with respect to Ground. Currents are positive into, THERMAL DATA DB PACKAGE: Thermal Resistance from Junction to Ambient, θ JA Junction Temperature Calculation: TJ = TA + (PD × θ JA). The θJA numbers are guidelines for the thermal performance of the device/pc-board system. Connect the ground pin to ground using a large pad or ground plane for better heat dissipation. All of the above assume no ambient airflow. Maximum Power Calculation: – TA(MAX) T PD(MAX)= J(MAX) θJA TJ(OC): Maximum recommended junction temperature TA(OC): Ambient temperature of the application θJA(OC /W): Junction-to-junction temperature thermal resistance of the package, and other heat dissipating materials. The maximum power dissipation for a single-output regulator is : PD(MAX) = [(VIN(MAX) - VOUT(NOM))] × IOUT(NOM) + VIN(MAX) × IQ Where: VOUT(NOM) = the nominal output voltage IOUT(NOM) = the nominal output current, and IQ = the quiescent current the regulator consumes at IOUT(MAX) VIN(MAX) = the maximum input voltage Then θJA = (+150 OC – TA)/PD 220 OC /W Copyright © 2006 ADDtek Corp. 2 DD067_G -- JUNE 2006 AMC8878/8879 BLOCK DIAGRAM Reverse Battery Protection VIN SHDN Shutdown And Power-On Control Current Limit VOUT Thermal Sensor VREF GND BP PIN DESCRIPTION Pin Number AMC8878 AMC8879 1 5 2 2 3 4 5 1 3 4 Pin Name VIN GND SHDN BP VOUT Pin Function Input Ground Logic control shutdown pin; HI: Device is ON, LO: Device is OFF Noise bypass pin; The output noise level can be reduced to 30µVRMS by connecting external capacitors Output RECOMMENDED OPERATING CONDITIONS Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Input Voltage VIN 2.5 6.5 Load Current IO 5 150 Input Capacitor (VIN to GND) 1.0 Output Capacitor with ESR of 10Ω max., (VOUT to GND) 1.0 Units V mA µF µF Note: 1. CIN: A 1.0 µF capacitor (or larger) should be placed between VIN to GND. 2. COUT: A 1.0 µF (or larger) capacitor is recommended between VOUT and GND for stability and improving the regulator’s transient response. The ESR (Effective Series Resistance.) of this capacitor has no effect on regulator stability, but low ESR capacitors improve high frequency transient response. The value of this capacitor may be increased without limit, but values larger than 10uF tend to increase the settling time after a step change in input voltage or output current. The part may oscillate without the capacitor. Any type of capacitor can be used, but not Aluminum electrolytics when operating below -25 OC, The capacitance may be increased without limit. Copyright © 2006 ADDtek Corp. 3 DD067_G -- JUNE 2006 AMC8878/8879 ELECTRICAL CHARACTERISTICS Unless otherwise specified, these specifications apply over the operating ambient temperature of 0°C to +70 °C with VIN = VOUT(NOMIAL) + 0.5V, and are for DC characteristics only. (Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Output Voltage Accuracy Maximum Output Current Current Limit Ground Pin Current Symbol ∆VOUT IOUT ILIMIT IQ VDROP ∆VOI ∆VOL PSRR en IOUT = 10mA IOUT = 150mA IOUT = 1mA IOUT = 50mA IOUT = 150mA VIN = (VOUT + 0.1V) to 6.5V, IOUT = 1mA -0.15 IOUT = 10 to 120mA, COUT = 1µF f=100Hz, IL=100uA f = 10Hz - 100KHz, CBP = 0.01µF VIN = 2.5V to 5.5V VIN = 2.5V to 5.5V TA = +25 C TA = +85 OC TA = +25 OC TA = +85 OC TA = +25 OC TA = +85 OC O Test Conditions IOUT = 10mA, TA = +25 OC IOUT = 10 to 150mA AMC8878/8879 Min -1.4 -3 150 160 Typ. Max +1.4 +2 Units % mA mA Dropout Voltage Line Regulation Load Regulation Ripple Rejection Output Voltage Noise COUT = 10µF COUT = 100µF 2.0 1.6 1.7 1.1 50 165 0 0.01 50 30 20 10 µA 120 0.15 0.04 mV %/V %/mA dB µVRMS V V µA nA Shutdown Input Threshold High Shutdown Input Threshold Low Shutdown Supply Current Shutdown Input Bias Current VSIH VSIL IQ(SHDN) VOUT = 0V ISHDN VSHDN = VIN 0.01 0.2 0.01 0.5 6 6 +150 0.4 1 100 Shutdown Exit Delay Thermal Shutdown Temperature tdelay TSHDN CBP = 0.1µF, COUT = 1µF, No load ms O C Note: 1. Current limit is measured at constant junction temperature, using pulse ON time. 2. Dropout is measured at constant junction temperature, using pulse ON time, and criterion is VOUT inside target value ± 2 %. 3. Regulation is measured at constant junction temperature, using pulsed ON time. Copyright © 2006 ADDtek Corp. 4 DD067_G -- JUNE 2006 AMC8878/8879 CHARACTERIZATION CURVES VIN=VOUT(NOMINAL) + 0.5V or 2.5V(whichever is greater), CIN=1uF, COUT=1uF,CBP=0.01uF, TA=+25 OC, Using plused ON time,unless otherwise noted. Output Voltage v.s. Output Current 3.5 Quiescent Current v.s. Output Current 2 Quiescent Current (µA) Output Voltage(V) VOUT=3.3V 3.4 3.3 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 3.2 3.1 3 2.9 2 .8 0 20 40 60 80 100 120 140 0 25 50 75 100 125 150 Output Current (V) Output Current (mA) Output Voltage v.s. Input Voltage 3.5 Quiescent Current v.s. Input Voltage Quiescent Current (µA) 2.4 2.2 2 1.8 1.6 1.4 1.2 Output Voltage (V) 3.4 IO=10mA VOUT=3.3V 3.3 IO=150mA 3.2 IO=150mA 3.1 3 4 4.5 5 5.5 6 IO=10mA 4 4.5 5 5.5 6 Input Voltage (V) 1 Input Voltage (V) Output Voltage v.s. Temperature 3.48 3.44 Quiescent Current v.s. Temperature 2.4 VOUT=3.3V Quiescent Current (µA) 105 2.2 2 1.8 1.6 1.4 1.2 1 Output Voltage (V) 3.4 IO=10mA 3.36 3.32 3.28 3.24 3.2 25 45 65 85 IO=150mA 25 45 65 85 105 Temperature (OC) Copyright © 2006 ADDtek Corp. 5 Temperature (OC) DD067_G -JUNE 2006 AMC8878/8879 CHARACTERIZATION CURVES (Continued)) VIN=VOUT(NOMINAL) + 0.5V or 2.5V(whichever is greater), CIN=1uF, COUT=1uF,CBP=0.01uF, TA=+25 OC, Using plused ON time,unless otherwise noted. Dropout Voltage v.s. Output Current Dropout Voltage (V) 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 0 25 50 75 100 125 150 Dropout Voltage v.s. Temperature 0.3 Dropout Voltage (V) 0.24 IO=150mA 0.25 0.2 0.15 0.1 0.05 0 25 45 65 85 105 Output Current (mA) Temperature (OC) 75mA/ Div Load Transient Response with IO=50mA 25mA/ Div COUT=1uF Load Transient Response with IO=150mA COUT=1uF IO VO IO VO 50mV/ Div 50mV/ Div Time=2ms Time=2ms Line Transient Response, With IO=50mA 1V/ Div 2V/ Div VOUT=3.3V Entering Shutdown, No Load VSHDN 0.5V/ Div 1V/ Div VOUT Time=2ms Time=1ms Copyright © 2006 ADDtek Corp. 6 DD067_G -- JUNE 2006 AMC8878/8879 CHARACTERIZATION CURVES (Continued)) VIN=VOUT(NOMINAL) + 0.5V or 2.5V(whichever is greater), CIN=1uF, COUT=1uF,CBP=0.01uF, TA=+25 OC, Using plused ON time,unless otherwise noted. Shutdown Exit Delay, CBP= 0.1uF Shutdown Exit Delay, CBP= 2pF 2V/ Div 1V/ Div 1V/ Div VOUT IO=50mA VOUT=3..3V 2V/ Div VSHDN VSHDN VOUT IO=50mA VOUT=3..3V Time=2ms Time=200µs Copyright © 2006 ADDtek Corp. 7 DD067_G -- JUNE 2006 AMC8878/8879 PACKAGE 5-Pin SOT-23 D b L L1 SEATING PLANE INCHES MIN A A1 TYP MAX 0.057 0.006 MILLIMETERS MIN 0.90 0.30 0.08 TYP 1.15 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 1.90 BSC 0.30 0.45 0.60 REF 0.25 BSC 15° 5° 10 ° 15° 0.60 MAX 1.45 0.15 1.30 0.50 0.22 E E1 A2 0.035 0.045 0.051 b c 0.012 0.003 0.020 0.009 e e1 c L2 D E 0.114 BSC 0.110 BSC 0.063`BSC 0.037 BSC 0.075BSC 0.012 0.018 0.024 0.024 REF 0.010 BSC 5° 10 ° GAUGE PLANE E1 e e1 M A A2 L M L1 L2 °M A1 Copyright © 2006 ADDtek Corp. 8 DD067_G -- JUNE 2006 AMC8878/8879 IMPORTANT NOTICE ADDtek reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. ADDtek integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of ADDtek products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer’s applications, the customer should provide adequate design and operating safeguards. ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of its products to the specifications applicable at the time of sale. ADDtek Corp. 9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105 TEL: 2-25700299 FAX: 2-25700196 Copyright © 2006 ADDtek Corp. 9 DD067_G -JUNE 2006