Advanced Monolithic Systems AMS3107 500mA LOW DROPOUT VOLTAGE REGULATOR FEATURES APPLICATIONS • Fixed and Adjustable Versions Available • Output Current up to 500mA • Very Low Quiescent Current • Reverse Battery Protection • Input-output Differential less than 0.6V • Short Circuit Protection • Internal Thermal Overload Protection • Load Dump Protection • Overvoltage Protection • Mirror Image Insertion Protection • ON/OFF Pin • Cellular Telephones • Portable Consumer Equipment • Portable (Notebook) Computers • Battery Powered Systems • Portable Instrumentation • Radio Control Systems • CD/DVD drives • Automotive GENERAL DESCRIPTION The AMS3107 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 0.8mA or less when supplying 50mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.2V for output currents of 100mA) make the AMS3107 ideal to use for standby power systems. Internal circuitry of AMS3107 is protected from input fault conditions caused by reverse battery installation or input voltages that exceed maximum rated input voltage. During line transients, such as load dump (40V) 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 AMS3107 series also includes internal current limiting, thermal shutdown, and is able to withstand temporary power-up with mirror-image insertion. The AMS3107 is offered in 3 lead TO-92, 8 lead SOIC, SOT-89, SOT-223 and TO-252 packages. ORDERING INFORMATION OUTPUT VOLTAGE FIXED PACKAGE TYPE 3L TO-92 AMS3107CN-X AMS3107N-X SOT-89 AMS3107CL-X AMS3107L-X ADJ. X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V. Advanced Monolithic Systems, Inc. TO-252 AMS3107CD-X AMS3107D-X TEMP. SOT-223 AMS3107C-X AMS3107-X SO-8 AMS3107CS-X AMS3107S-X AMS3107S RANGE IND IND IND 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 ABSOLUTE MAXIMUM RATINGS (Note 1) Input Voltage Operating Overvoltage Protection Internal Power Dissipation (Note 4) Maximum Junction Temperature +125°C Storage Temperature -65°C to +150°C Lead Temperature (Soldering 10 sec) 230°C ESD 2000V 25V 26V to 40V Internally Limited ELECTRICAL CHARACTERISTICS Electrical Characteristics at VIN =6.3V, IO =5mA, TJ=25°C, C2 = 22µF unless otherwise specified. PARAMETER CONDITIONS Min. AMS3107C-X Typ. Max. Min. AMS3107-X Typ. Max. Units Fixed Output Voltage Versions Output Voltage Tolerance 6.3V ≤V ≤25V, IO=100 mA IN Line Regulation -1.0 +1.0 -3.0 +3.0 - 3.0 + 3.0 ± 5.0 % % 6V ≤V ≤ 15V 3 10 5 10 mV 15V ≤V ≤ 25V 5 10 5 15 mV IN IN Load Regulation 5mA ≤I ≤ 100 mA 5 10 5 15 mV 15 15 20 mV 15 20 20 25 mV 20 30 20 30 mV Dropout Voltage 5mA ≤10 ≤ 200 mA 5mA ≤10 ≤ 350 mA 5mA ≤10 ≤ 500 mA I = 100 mA 10 0.15 0.20 0.25 0.30 mV I = 200 mA 0.30 0.40 0.40 0.50 mV I = 350 mA 0.40 0.45 0.45 0.55 mV I = 500 mA 0.55 0.70 0.55 0.70 mV I ≤ 10 mA, 0.18 0.25 0.2 0.3 mA I = 100 mA 2 2.5 2 3 mA I ≤ 200 mA 5 8 5 8 mA I = 350 mA 12 12 Output Noise Voltage 10Hz-100kHz, COUT = 100µF 50 50 µV rms Output Bypass Capacitor ESR=0.1 to 10Ω 10 10 µF Ripple Rejection fO =120Hz 55 80 80 dB 25 28 25 28 V 35 40 35 40 V -35 -40 -35 -40 V -35 -40 -35 -40 V O O O O O Quiescent Current O O O mA O Maximum Operational Input Voltage Maximum Line Transient RL = 500Ω, VO ≤ 5.5V 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. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 ELECTRICAL CHARACTERISTICS Electrical Characteristics at VIN =6V, VOUT =3V IO =5mA, TJ=25°C, R1 =27k, C2 = 2µF unless otherwise specified. PARAMETER Min. AMS3107 Typ. Max. 1.210 1.235 1.26 V 1.20 1.235 1.270 V 24 V CONDITIONS (Note 2) Units Adjustable Version Reference Voltage IO ≤ 100 mA, -40°C ≤T ≤ 125°C, J R1=27k, Measured from VOUT to Adj. Pin Output Voltage Range 2 Line Regulation 6V ≤V ≤ 25V .02 1.5 mV/V Load Regulation 5mA ≤I ≤ 100 mA 0.3 0.5 % 1 % 1.0 1.5 % 1.0 2.0 % Dropout Voltage 5mA ≤10 ≤ 200 mA 5mA ≤10 ≤ 350 mA 5mA ≤10 ≤ 500 mA I = 100 mA 0.5 0.05 0.2 V I = 200 mA 0.3 0.4 V I = 350 mA 0.5 0.6 V I = 500 mA 0.5 0.7 V IN O O O O O Quiescent Current I = 0 mA, 0.18 0.3 mA I = 100 mA 2.0 2.5 mA I = 200 mA 5.0 8.0 mA O O O I = 350 mA 12 mA Output Noise Voltage 10Hz-100kHz 100 µVrms/V Output Bypass Capacitor ESR=0.1 to 10Ω 10 µF Long Term Stability T =1000hr 0.4 %/1000hr Ripple Rejection fO = 120Hz 0.02 dB 21 22 V 35 40 V O Maximum Operational Input Voltage IO = 10mA, Reference Voltage ≤ 1.5V Maximum Line Transient T = 1ms, τ ≤100ms Reverse Polarity Input Voltage, D/C RL = 500Ω, VO ≥ -0.3V -35 -40 V Reverse Polarity Input Voltage, Transient RL = 500Ω, T = 1ms, τ ≤100ms -35 -40 V On/Off Threshold Voltage VO = 3V 1.8 On 2.5 Off On/Off Threshold Current VOFF = 2.4V 1.5 2.0 35 V V 60 µA 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: 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 maximum allowable power dissipation is a function of the maximum junction temperature TJ(MAX), the junction-to ambient thermal resistance θJ-A and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is calculated using: P(MAX) = TJ(MAX) - TA θJ - A Where the value of the junction-to-ambient thermal resistance are as follows: 195°C/W for TO-92 (N), 160°C/W for the SO-8 (S), 110°C/W for SOT-89 (L), 90°C/W for SOT-223 and 80°C/W for TO-252. Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 PIN CONNECTIONS TO-92 Plastic Package (N) OUTPUT SOT-89 (L) SOT-223 INPUT GND 1 INPUT 2 1 3 GND OUTPUT Bottom View Top View TO-252 (D) 8L SOIC SO-Package (S) 3 2 1 TAB IS GND OUTPUT OUTPUT INPUT 1 8 INPUT 7 GROUND 3 6 GROUND ADJ/ N/C 4 Top View 2 3 GND OUTPUT Top View GROUND 2 GROUND INPUT 5 ON/OFF Top View TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage IO = 350mA 0.4 IO = 200mA 0.3 IO = 150mA 0.2 IO = 100mA 0.1 0 0 80 120 40 JUNCTION TEMPERATURE (° C) Advanced Monolithic Systems, Inc. Low Voltage Behavior 0.6 6.0 0.5 OUTPUT VOLTAGE (V) 0.5 INPUT OUTPUT DIFFERENTIAL (V) INPUT OUTPUT DIFFERENTIAL (V) Dropout Voltage 0.6 0.4 0.3 0.2 0.1 0 5.0 AMS3107-3.3 IO = 500mA 4.0 3.0 2.0 0 0 100 200 300 400 500 OUTPUT CURRENT (mA) 600 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE (V) 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Output at Voltage Extremes Low Voltage Behavior 3.0 2.0 4 3 2 1 0 -1 -20 -10 0 3.0 4.0 5.0 6.0 INPUT VOLTAGE (V) Output Impedance 2 1 0 0 10 20 30 40 50 60 INPUT VOLTAGE (V) Ripple Rejection 85 0.1 100 1k 10k 100k FREQUENCY (Hz) 1000 800 RIPPLE REJECTION (dB) OUTPUT CURRENT (mA) TJ= 25°C 600 400 200 0 1M 0 Quiescent Current 20 10 INPUT VOLTAGE (V) C2 = 22µF TANTALUM 75 C2 = 100 µF ALUM 70 65 60 55 IO= 10mA 50 45 30 1 Quiescent Current 10 100 1k 10k 100k 1M FREQUENCY (Hz) Quiescent Current 25 IO= 10mA QUIESCENT CURRENT (mA) 15 12.5 10 7.5 5.0 2.5 0 V IN = 6V 10 8 6 4 2 0 0 1 2 3 4 5 6 7 8 INPUT VOLTAGE (V) 9 10 Advanced Monolithic Systems, Inc. 0 50 100 150 200 250 300 350 OUTPUT CURRENT (mA) QUIESCENT CURRENT (mA) OUTPUT IMPEDANCE (Ω) 1 17.5 QUIESCENT CURRENT (µA) 3 80 IO = 10mA 10 4 -1 -20 -10 0 10 20 30 40 50 60 INPUT VOLTAGE (V) 1200 1 RL=500mΩ Peak Output Current 10 -2.5 AMS3107-5.0 5 RL=500mΩ OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5 4.0 2.0 6 AMS3107-3.3 AMS3107-5.0 IO = 500mA 5.0 0.01 Output at Voltage Extremes 6 6.0 20 15 IO = 200mA 10 ~ ~ 3 2 ~ ~ IO = 100mA IO = 50mA 1 IO = 0mA 0 -40 0 40 80 120 TEMPERATURE (° C) 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 Operation During Load Dump 70 60 50 40 30 τ =150ms 20 10 0 ~ CO= 100 µF 5~ RL= 500Ω 4 3 2 1 0 100 200 300 400 -100 0 TIME (ms) Reference Voltage 1.30 ~ ~ 500 REFERENCE VOLTAGE (V) OUTPUT VOLTAGE (V) INPUT VOLTAGE (V) TYPICAL PERFORMANCE CHARACTERISTICS (Continued) AMS3107 ADJUSTABLE 1.28 1.26 1.24 1.22 1.20 1.18 1.16 1.14 1.12 1.10 0 3 6 9 12 15 18 21 24 OUTPUT VOLTAGE (V) APPLICATION NOTES Definition of Terms Dropout Voltage: The input-output voltage differential at which the circuit stops to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100mV from the nominal voltage obtained at 1V input, dropout voltage is dependent upon load current and junction temperature. Input Voltage: The DC voltage applied to the input terminal with respect to ground. Input-Output Differential: The voltage difference between the unregulated input voltage and the regulated output voltage for which the regulator will regulate. Line Regulation: The change in output voltage for a change in the input voltage. The line regulation is measured under conditions of low dissipation or by using low duty cycle pulse testing such that the average chip temperature is not significantly affected. Load Regulation: The change in output voltage for a change in load current at constant chip temperature. Long term stability: Output voltage stability under accelerated life-test conditions after 1000 hours with maximum rated voltage and junction temperature. Output Noise Voltage: The rms AC voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Quiescent Current: That part of the positive input current that does not contribute to the positive load current. The regulator ground lead current. Ripple Rejection: The ratio of the peak-to –peak input ripple voltage to the peak-to-peak output ripple voltage at specified frequency. Temperature Stability of VO: The percentage change in output voltage for a thermal variation from room temperature to either temperature extreme. External capacitor The AMS3107 series require an output capacitor of 10µF or greater to ensure device stability. Without the capacitor the device may oscillate. Advanced Monolithic Systems, Inc. Most type of tantalum or electrolytic capacitor can be used in the applications. A critical characteristic of the capacitors is an ESR value of 5Ω or less and a resonant frequency above 500kHz. The value of this capacitor can be increased without limits. For higher loads, the value of the capacitor should be increased, specialy when the output voltage is set for 2.5V or less. The AMS3107 lowest fixed output voltage value is 2.0V. Typical application circuit (adjustable output) V IN 100k OUT VOUT OFF ON/OFF 10µF AMS3107 ADJUSTABLE R1 28k + ADJ ON GND C1 22µF R2 Minimum Load In circuits using the fixed output voltage versions, minimum load is not required. For circuits using the adjustable device, the value of R1 and R2 should be chosen such, that a current of approximately 40µA flows through the network. The reference voltage (1.235V) is measured between the adjust pin and VOUT. The output voltage can be set by the two resistors R1 and R2 using the following equation: R1 + R2 VO = VREF R1 The value of R1 is recommended to be between 25kΩ to 30 kΩ, and the value of R2 will set the output voltage. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 3L 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 Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). SOT-89 PLASTIC PACKAGE (L) 0.173-0.181 (4.40-4.60) 0.055-0.063 (1.40-1.60) 0.014-0.017 (0.35-0.44) 0.064-0.072 (1.62-1.83) 0.155-0.167 (3.94-4.25) 0.084-0.090 (2.13-2.29) 0.090-0.102 (2.29-2.60) 0.035-0.047 (0.89-1.20) 0.059 (1.50) BSC 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56) L (SOT-89 ) AMS DRW# 042392 0.118 (3.00) BSC 3 LEAD SOT-223 PLASTIC PACKAGE 0.248-0.264 (6.30-6.71) 0.116-0.124 (2.95-3.15) 0.264-0.287 (6.71-7.29) 0.130-0.146 (3.30-3.71) 0.033-0.041 (0.84-1.04) 0.090 (2.29) NOM 10°-16° 10° MAX 0.071 (1.80) MAX 0.010-0.014 (0.25-0.36) 10°-16° 0.025-0.033 (0.64-0.84) 0.181 (4.60) NOM Advanced Monolithic Systems, Inc. 0.012 (0.31) MIN 0.025-0.033 (0.64-0.84) (SOT-223 ) AMS DRW# 042292 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS3107 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). TO-252 PLASTIC PACKAGE (D) 0.020-0.030 (0.508-0.762) 0.258-0.262 (6.553-6.654) 0.208-0.212 (5.283-5.384) 0.020-0.030 (0.508-0.762) 0.033-0.037 (0.838-0.939) 0.085-0.095 (2.159-2.413) 7.0° 0.023-0.027 (0.584-0.685) 0.030-0.034 (0.762-0.863) 0.038-0.042 (0.965-1.066) 45.0° 0.175-0.180 (4.191-4.445) 0.025 (0.635) TYP 0.099-0.103 (2.514-2.615) 0.088-0.092 (2.235-2.336) Advanced Monolithic Systems, Inc. 0.235-0.245 (5.969-6.223) 0.057-0.067 (0.144-0.170) DIA 0.030 (0.762) TYP 0.038 (0.965) TYP 0.018-0.022 (0.451-0.558) 0.038-0.042 (0.965-1.066) 0.024±0.002 (0.610±0.0508) D (D3) AMS DRW# 042891 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140