Advanced Monolithic Systems AMS2930 150mA LOW DROPOUT VOLTAGE REGULATOR RoHS compliant FEATURES APPLICATIONS • Fixed and Adjustable Versions Available • Output Current in excess of 150mA • Very Low Quiescent Current • Reverse Battery Protection • Input-output Differential less than 0.6V • Short Circuit protection • Internal Thermal Overload Protection • 60V Load Dump Protection • -50V Reverse Transient Protection • Mirror Image Insertion Protection • Battery Powered Systems • Portable Consumer Equipment • Cordless Telephones • Portable (Notebook) Computers • Portable Instrumentation • Radio Control Systems • Automotive Electronics PRODUCT DESCRIPTION The AMS2930 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered systems. These devices feature very low quiescent current of 1mA or less when supplying 10mA loads. This unique characteristic and the extremely low input -output differential required for proper regulation (0.2V for output currents of 10mA) make the AMS2930 ideal to use for standby power systems. Originally designed for automotive applications, the AMS2930 and all regulated circuitry are protected from input fault conditions caused by reverse battery installation or two battery jump starts. During line transients, such as load dump (60V) when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The AMS2930 series also includes internal current limiting, thermal shutdown, and is able to withstand temporary power-up with mirror-image insertion. The AMS2930 is offered in the 3-pin TO-92 package, 8-pin plastic SOIC, TO-220 and TO-263 packages. ORDERING INFORMATION OUTPUT PACKAGE TYPE 8 LEAD SOIC TO-220 AMS2930AS-X AMS2930AT-X AMS2930S-X AMS2930T-X ADJ. AMS2930CS X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V *For additional available fixed voltages contact factory VOLTAGE FIXED* TO-92 AMS2930AN-X AMS2930N-X Advanced Monolithic Systems, Inc. www.advanced-monolithic.com OPER. TEMP TO-263 AMS2930AM-X AMS2930M-X RANGE IND IND IND Phone (925) 443-0722 Fax (925) 443-0723 AMS2930 ABSOLUTE MAXIMUM RATINGS (Note 1) Input Voltage Operating Range Overvoltage Protection AMS2930A-X, AMS2930C AMS2930-X Internal Power Dissipation (Note 4) Reverse Voltage (100ms) -12V Reverse Voltage (DC) -6V Maximum Junction Temperature +125°C Storage Temperature -65°C to +150°C Lead Temperature (Soldering 25 sec) 265°C ESD 2000V 26V 60V 50V Internally Limited ELECTRICAL CHARACTERISTICS Electrical Characteristics at VIN=14V, TJ=25°C, C2 = 100µF unless otherwise specified. PARAMETER CONDITIONS Min. AMS2930A-X Typ. Max. Min. AMS2930-X Typ. Max. Units Fixed Output Voltage Versions Output Voltage Tolerance 6V ≤V ≤26V, IO=100 mA IN -40°C ≤T ≤125°C -1.0 +1.0 -3.0 +3.0 - 3.0 + 3.0 ± 5.0 % % J 9V ≤V ≤ 16V IN 2 10 2 10 mV 6V ≤V ≤ 26V IN 4 30 4 30 mV Load Regulation 5mA ≤I ≤ 150 mA 14 50 14 50 mV Dropout Voltage I = 10 mA 0.05 0.2 0.05 0.2 mV I = 150 mA 0.3 0.6 0.3 0.6 mV 0.4 1.0 0.4 1.0 mA 15 30 15 mA 500 µV rms Line Regulation O O O Quiescent Current I ≤ 10 mA, 6V ≤ V ≤ 26V O -40°C ≤T ≤ 125°C IN J I = 150 mA, VIN = 14V, TJ = 25°C 5 O Output Noise Voltage 10Hz-100kHz, COUT = 100µA 500 Output Impedance 100mADC and 10mArms,100Hz=10kHz 160 Long Term Stability T =1000hr 20 Ripple Rejection fO =120Hz 55 Maximum Operational Input Voltage Maximum Line Transient 160 200 20 80 26 RL = 500Ω, VO ≤ 5.5V 200 mV 80 33 26 mΩ dB 33 V 60 70 50 70 V -15 -30 -15 -30 V -50 -80 -50 -80 V T = 1ms, τ ≤100ms Reverse Polarity Input Voltage, D/C Reverse Polarity Input Voltage, Transient RL = 500Ω, T = 1ms, τ ≤100ms Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS2930 Electrical Characteristics Electrical Characteristics at VIN=14V, VOUT =3V IO =150mA, TJ=25°C, R1 =27k, C2 = 100µF unless otherwise specified. PARAMETER Min. AMS2930C Typ. Max. 1.14 1.20 1.26 1.08 1.32 V 3 24 V CONDITIONS (Note 2) Units Adjustable Version Reference Voltage IO ≤ 150 mA, -40°C ≤T ≤ 125°C, R1=27k, J Measured from VOUT to Adjust Pin Output Voltage Range V Line Regulation VOUT + 0.6V ≤V ≤ 26V .02 1.5 mV Load Regulation 5mA ≤I ≤ 150 mA 0.3 1 % Dropout Voltage I ≤10 mA 0.05 0.3 0.2 0.6 V V 1 During Shutdown RL = 500Ω 0.4 15 0.8 mA mA mA Output Noise Voltage 10Hz-100kHz 100 µVrms/V Output Impedance 100mADC and 10mArms,100Hz=10kHz 40 mΩ IN O O I = 150 mA O Quiescent Current I = 10 mA O I = 150 mA O 1 Long Term Stability T =1000hr 0.4 %/1000hr Ripple Rejection fO = 120Hz 0.02 %/V 26 33 V 60 70 V Maximum Operational Input Voltage Maximum Line Transient IO = 10mA, Reference Voltage ≤ 1.5V T = 1ms, τ ≤100ms Reverse Polarity Input Voltage, D/C RL = 500Ω, VO ≥ -0.3V -15 -30 V Reverse Polarity Input Voltage, Transient RL = 500Ω, T = 1ms, τ ≤100ms -50 -80 V On/Off Threshold Voltage VO = 3V On Off 2.0 3.25 On/Off Threshold Current 1.2 V 50 µA 2.2 20 V Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test conditions, see the Electrical Characteristics tables. Note 2: See Circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used. Note 3: Limits appearing in boldface type apply over the entire junction temperature range for operation. Limits appearing in normal type apply for TA = TJ = 25°C. Note 4: The junction-to-ambient thermal resistance are as follows: 195°C/W for the TO-92 (N) package, 160°C/W for the molded plastic SO-8 (S), 50°C/W for the TO-220 package and 73°C/W for the TO-263 package. If the TO-220 package is used with a heat sink, θJA is the sum of the package thermal resistance junction-to-case of 3°C/W and the thermal resistance added by the heat sink and the thermal interface. The thermal resistance of the TO-263 package can be reduced by increasing the PCB copper area thermally connected to the package: using 0.5 square inches of copper area, ϕ JA is 50°C/W; with 1 square inch of copper area ϕ JA is 37°C/W; and with 1.6 or more square inches of copper area ϕ JA is 32°C/W. Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS2930 PIN CONNECTIONS FIXED OUTPUT VOLTAGE OUTPUT 8L SOIC SO-Package (S) INPUT OUTPUT 1 TO-220 (T) 7 GROUND GROUND 3 6 GROUND TO-263 (M) TAB IS GND OUTPUT GND INPUT 8 INPUT GROUND 2 GND TO-92 Plastic Package (N) OUTPUT GND INPUT GND N/C 4 Bottom View 5 N/C Top View Front View Top View ADJUSTABLE OUTPUT VOLTAGE 8L SOIC SO-Package (S) OUTPUT 1 8 INPUT GROUND 2 7 GROUND GROUND 3 6 GROUND ADJ 4 5 ON/OFF Top View TYPICAL APPLICATIONS AMS2930-X (Fixed Output) AMS2930C (Adjustable Output) VCC VIN UNREGULATED INPUT C1* 0.1µF AMS2930 GND IQ VOUT REGULATED OUTPUT R3 51k C2** 100µF OUT ON/OFF C1* 0.1µF AMS2930 ADJUSTABLE R1 28k + ADJ ON *Required if regulator is located far from power supply filter. **C2 must be at least 100µF to maintain stability; it can be increased without bound to maintain regulation during transients and it should be located as close as possible to the regulator. This capacitor must be rated over the same operating temperature range like the regulator. The ESR of this capacitor is critical (see curve) and it should by less than 1Ω over the expected operating temperature range. VOUT OFF GND C2** 100µF R2 VOUT = VREF × ( R1+R2)/R1 Note: Using 27k for R1 will automatically compensate for errors in VOUT due to the input bias current of the Adjust Pin ( approx. 1µA) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS2930 TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage IO = 150mA 0.3 IO = 50mA 0.2 IO = 10mA 0.1 0 0 0.5 5.0 0.4 0.3 0.2 0.1 6 4 2 0 0 10 20 30 40 50 INPUT VOLTAGE (V) 60 INPUT VOLTAGE OUTPUT VOLTAGE CHANGE (V) DEVIATION (mV) 3 2 1 0 -1 -2 ~ -3 ~ VIN = VOUT = 9V C2= 100 µF ~ ~ 3 0 0 Peak Output Current 15 30 TIME (µs) 2.0 45 QUIESCENT CURRENT (mA) TJ = 25°C TJ = -40°C 400 300 TJ= 125°C 200 100 0 C2= 100µF 0 -40 ~ ~ 20 10 INPUT VOLTAGE (V) 30 Advanced Monolithic Systems, Inc. ~ ~ 150 0 0 15 30 TIME (µs) 45 Quiescent Current VIN = 14V 25 20 15 10 5 0 0 40 22 30 500 3.0 4.0 5.0 6.0 INPUT VOLTAGE (V) Load Transient Response Quiescent Current 600 OUTPUT CURRENT ( mA) 150 QUIESCENT CURRENT (mA) OUTPUT VOLTAGE (V) 8 -2 -20 -10 50 100 125 OUTPUT CURRENT (mA) Line Transient Response AMS2930-5.0 RL=500Ω 10 2.0 0 0 Output at Voltage Extremes 12 3.0 0 100 50 150 JUNCTION TEMPERATURE (° C) AMS2930-5.0 IO = 150mA 4.0 OUTPUT VOLTAGE DEVIATION (mV) 0.4 6.0 OUTPUT VOLTAGE (V) 0.5 Low Voltage Behavior 0.6 LOAD CURRENT(mA) INPUT OUTPUT DIFFERENTIAL (V) INPUT OUTPUT DIFFERENTIAL (V) Dropout Voltage 0.6 0 90 60 30 120 OUTPUT CURRENT (mA) www.advanced-monolithic.com 150 20 IO = 150mA 18 16 ~ ~ 9 ~ ~ IO = 50mA 6 3 0 -40 Phone (925) 443-0722 IO = 0mA 0 40 80 120 TEMPERATURE (° C) Fax (925) 443-0723 AMS2930 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Quiescent Current Ripple Rejection IO= 150mA 15 10 IO= 50mA 5 C2 = 100µF TANTALUM 80 25 20 80 0 75 C2 = 100µF ALUM 70 65 60 55 AMS2930-5.0 IO= 10mA 50 60 40 20 FQ= 120Hz IO= 10mA 45 60 1 Output Impedance OUTPUT VOLTAGE (V) 1 0.1 10 100 1k 10k 100k FREQUENCY (Hz) 45 1M 1M 70 60 50 40 30 20 10 0 0 POWER DISSIPATION (W) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 10 20 30 40 50 60 70 80 90 AMBIENT TEMPERATURE (° C) Advanced Monolithic Systems, Inc. ~ ~ ~ ~ CO= 100µF RL= 500Ω 0 100 200 300 TIME (ms) 400 AMS2930C ADJUSTABLE 1.28 1.26 1.24 1.22 1.20 1.18 1.16 1.14 1.12 1.10 500 0 Maximum Power Dissipation (TO-220) 22 20 18 16 14 12 10 8 6 4 150 Reference Voltage τ =150ms 6 4 2 0 -2 -100 Maximum Power Dissipation (SO-8) 1.0 0.9 50 100 OUTPUT CURRENT (mA) 1.30 REFERENCE VOLTAGE (V) INPUT VOLTAGE (V) IO = 10mA 1 100 1k 10k 100k FREQUENCY (Hz) Operation During Load Dump AMS2930-5.0 0.01 10 3 6 9 12 15 18 21 OUTPUT VOLTAGE (V) INFINITE HEAT SINK 10° C/W HEAT SINK NO HEAT SINK 2 0 0.8 0.7 0.125" Lead Lenght from PC Board 0.6 0.5 0.4 0.4" Lead Lenght from PC Board 0.3 0.2 0.1 0 0 10 20 30 40 50 60 70 80 90 100 AMBIENT TEMPERATURE (° C) www.advanced-monolithic.com 24 Maximum Power Dissipation (TO-92) 1.0 0.9 POWER DISSIPATION (W) 0 10 20 30 40 50 INPUT VOLTAGE (V) 10 OUTPUT IMPEDANCE (Ω) 5V OUTPUT RIPPLE REJECTION (dB) 5V OUTPUT 30 -5 -20 -10 POWER DISSIPATION (W) Ripple Rejection 85 RIPPLE REJECTION (dB) QUIESCENT CURRENT ( mA) 35 0 10 20 30 40 50 60 70 80 AMBIENT TEMPERATURE (° C) Phone (925) 443-0722 Fax (925) 443-0723 AMS2930 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) 3 θJA = 37° C/W 2 θJA = 50° C/W 1 θJA = 73° C/W 0 0 10 20 30 40 50 60 70 80 90 100 AMBIENT TEMPERATURE (° C) 4.0 3.8 AMS2930C ADJUSTABLE 3.6 3.4 OFF 3.2 3.0 2.8 2.6 ONN 2.4 2.2 2.0 0 3 6 9 12 15 18 21 OUTPUT VOLTAGE (V) 24 EQUIVALENT SERIES RESISTANCE ( Ω) 4 θJA = 32° C/W Output Capacitor ESR On/Off Treshold ON/OFF VOLTAGE TRESHOLDS (V) POWER DISSIPATION (W) Maximum Power Dissipation (TO-263) 100 COUT= 100µF VO = 5V 10 1 STABLE REGION 0.1 0.01 0 25 50 75 100 125 OUTPUT CURRENT (mA) 150 APPLICATION HINTS The AMS2930 series require an output capacitor for device stability. The value required depends on the application circuit and other factors. Because high frequency characteristics of electrolytic capacitors depend greatly on the type and even the manufacturer, the value of capacitance that works well with AMS2930 for one brand or type may not necessary be sufficient with an electrolytic of different origin. Sometimes actual bench testing will be the only means to determine the proper capacitor type and value. To obtain stability in all general applications a high quality 100µF aluminum electrolytic or a 47µF tantalum electrolytic can be used. A critical characteristic of the electrolytic capacitors is their performance over temperature. The AMS2930 is designed to operate to -40°C, but some electrolytics will freeze around -30°C therefore becoming ineffective. In such case the result is oscillation at the regulator output. For all application circuits where cold operation is necessary, the output capacitor must be rated to operate at the minimum temperature. In applications where the regulator junction temperature will never be lower than 25°C the output capacitor value can be reduced by a factor of two over the value required for the entire temperature range (47µF for a high quality aluminum or 22µF for a tantalum electrolytic capacitor). With higher output currents, the stability of AMS2930 decreases. Considering the fact that in many applications the AMS2930 is operated at only a few milliamps (or less) of output current, the output capacitor value can be reduced even further. For example, a circuit that is required to deliver a maximum of 10mA of output current from the regulator output will need an output capacitor of only half the value compared to the same regulator required to deliver the full output current of 150mA. In the case of AMS2930C (adjustable), the minimum value of output capacitance is a function of the output voltage. As a general rule, with higher output voltages the value of the output capacitance decreases, since the internal loop gain is reduced. In order to determine the minimum value of the output capacitor, for an application circuit, the entire circuit including the capacitor should be bench tested at minimum operating temperatures and maximum operating currents. To maintain internal power dissipation and die heating to a minimum, the input voltage should be maintain at 0.6V above the output. Worst-case occurs just after input power is applied and before the die had the chance to heat up. After the minimum capacitance value has been found for the specific brand and type of electrolytic capacitor, the value should be doubled for actual use to cover for production variations both in the regulator and the capacitor. AMS2930 Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 3 LEAD TO-92 PLASTIC PACKAGE (N) 0.180±0.005 (4.572±0.127) 0.060±0.005 (1.524±0.127) DIA 0.060±0.010 (1.524±0.254) 0.90 (2.286) NOM 0.180±0.005 (4.572±0.127) 0.140±0.010 (3.556±0.127) 5° NOM 0.500 (12.70) MIN 0.050 (1.270) MAX UNCONTROLLED LEAD DIMENSIONS 0.015±0.002 (0.381±0.051) 0.016±0.003 (0.406±0.076) 0.050±0.005 (1.270±0.127) 10° NOM N (TO-92 ) AMS DRW# 042391 8 LEAD SOIC PLASTIC PACKAGE (S) 0.189-0.197* (4.801-5.004) 8 7 6 5 0.228-0.244 (5.791-6.197) 0.150-0.157** (3.810-3.988) 1 2 3 4 0.010-0.020 x 45° (0.254-0.508) 0.053-0.069 (1.346-1.752) 0.004-0.010 (0.101-0.254) 0.014-0.019 (0.355-0.483) 0.008-0.010 (0.203-0.254) 0.050 (1.270) TYP 0°-8° TYP 0.016-0.050 (0.406-1.270) S (SO-8 ) AMS DRW# 042293 *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE AMS2930 Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). 3 LEAD TO-220 PLASTIC PACKAGE (T) 0.147-0.155 (3.734-3.937) DIA 0.390-0.415 (9.906-10.541) 0.165-0.180 (4.191-4.572) 0.045-0.055 (1.143-1.397) 0.230-0.270 (5.842-6.858) 0.570-0.620 (14.478-15.748) 0.460-0.500 (11.684-12.700) 0.330-0.370 (8.382-9.398) 0.980-1.070 (24.892-27.178) 0.218-0.252 (5.537-6.401) 0.520-0.570 (13.208-14.478) 0.090-0.110 (2.286-2.794) 0.050 (1.270) TYP 0.028-0.038 (0.711-0.965) 0.013-0.023 (0.330-0.584) 0.095-0.115 (2.413-2.921) T (TO-220) AMS DRW# 042193 3 LEAD TO-263 PLASTIC DD (M) 0.060 (1.524) TYP 0.390-0.415 (9.906-10.541) 0.335-0.380 (8.50-9.65) 0.165-0.180 (4.191-4.572) 0.045-0.055 (1.143-1.397) 0.004 +0.008 -0.004 (0.102 +0.203 ) -0.102 0.595-0.615 (15.113-15.621) 0.095-0.115 (2.413-2.921) 0.059 (1.499) TYP 0.050±0.012 (1.270±0.305) 0.090-0.110 (2.286-2.794) Advanced Monolithic Systems, Inc. 0.050 (1.270) TYP 0.013-0.023 (0.330-0.584) www.advanced-monolithic.com M (DD3) AMS DRW# 042191 Phone (925) 443-0722 Fax (925) 443-0723