AMS1084CM-3.5

AMS1084_05 ADMOS | Alldatasheet

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Monolithic 5A LOW DROPOUT VOLTAGE REGULATOR Systems RoHS compliant FEATURES APPLICATIONS

• Three Terminal Adjustable or Fixed • High Efficiency Linear Regulators
• Output Current of 5A • Microprocessor Supply
• Operates Down to 1V Dropout • Battery Chargers
• Line Regulation: 0.015% • Constant Current Regulators
• Load Regulation: 0.1% • Notebook/Personal Computer Supplies
• TO-220, TO-263 and TO-252 packages available • Portable Instrumentation GENERAL DESCRIPTION The AM S1084 seri es of adjust able and fi xed vol tage regul ators are designed to provi de 5A out put current and t o operat e down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.5V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference vol tage to 1%. C urrent limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry. The AMS1084 devices are pi n compatible with older three-terminal regulators and are offered i n 3 lead TO-220 package, 3 and 2 lead TO-263 (Plastic DD) and TO-252 (D PAK) package. ORDERING INFORMATION: PACKAGE TYPE OPERATING JUNCTION

3 LEAD TO-220 2&3 LEAD TO-263 TO-252 TEMPERATURE RANGE

AMS1084CT AMS1084CM AMS1084CD 0 to 125° C AMS1084CT-1.5 AMS1084CM-1.5 AMS1084CD-1.5 0 to 125° C AMS1084CT-2.5 AMS1084CM-2.5 AMS1084CD-2.5 0 to 125° C AMS1084CT-2.85 AMS1084CM-2.85 AMS1084CD-2.85 0 to 125° C AMS1084CT-3.0 AMS1084CM-3.0 AMS1084CD-3.0 0 to 125° C AMS1084CT-3.3 AMS1084CM-3.3 AMS1084CD-3.3 0 to 125° C AMS1084CT-3.5 AMS1084CM-3.5 AMS1084CD-3.5 0 to 125° C AMS1084CT-5.0 AMS1084CM-5.0 AMS1084CD-5.0 0 to 125° C TAB IS OUTPUT TO-220 FRONT VIEW 3TAB IS OUTPUT 3L TO-263 FRONT VIEW TAB IS OUTPUT TO-252 FRONT VIEW 3TAB IS OUTPUT 2L TO-263 FRONT VIEW PIN CONNECTIONS FIXED VERSION ADJUSTABLE VERSION 1- Ground 2- VOUT 3- VIN 1- Adjust 2- VOUT 3- VIN Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1084 ABSOLUTE MAXIMUM RATINGS (Note 1) Power Dissipation Internally limited Soldering information Input Voltage 15V Lead Temperature (25 sec) 265°C Operating Junction Temperature Thermal Resistance Control Section 0°C to 125°C TO-220 package ϕ JA= 50°C/W Power Transistor 0°C to 150°C TO-263 package ϕ JA= 30°C/W * Storage temperature - 65°C to +150°C TO-252 package ϕ JA= 100°C/W * With package soldering to 0.5in 2 copper area over backside ground plane or internal power plane ϕ JA can vary from 20°C/W to >40°C/W depending on mounting technique.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at IOUT = 0 mA, and TJ = +25°C unless otherwise specified. Parameter Device Conditions Min Typ Max Units Reference Voltage (Note 2) AMS1084 IOUT = 10 mA 10mA ≤ IOUT ≤ 5A, 1.5V≤ (VIN - VOUT) ≤ 12V 1.238 1.225 1.250 1.250 1.262 1.270 V V Output Voltage (Note 2) AMS1084-1.5 0 ≤ IOUT ≤ 5A , 3V ≤ VIN ≤ 12V 1.485 1.470 1.500 1.500 1.515 1.530 V V AMS1084-2.5 0 ≤ IOUT ≤ 5A , 4V ≤ VIN ≤ 12V 2.475 2.450 2.500 2.500 2.525 2.550 V V AMS1084-2.85 0 ≤ IOUT ≤ 5A , 4.35V≤ VIN ≤ 12V 2.82 2.79 2.850 2.850 2.88 2.91 V V AMS1084-3.0 0 ≤ IOUT ≤ 5A , 4.5V ≤ VIN ≤ 12V 2.970 2.940 3.000 3.000 3.300 3.360 V V AMS1084-3.3 0 ≤ IOUT ≤ 5A , 4.75V ≤ VIN ≤ 12V 3.267 3.235 3.300 3.300 3.333 3.365 V V AMS1084-3.5 0 ≤ IOUT ≤ 5A, 5V ≤ VIN ≤ 12V 3.465 3.430 3.500 3.500 3.535 3.570 V V AMS1084-5.0 0 ≤ IOUT ≤ 5A , 6.5V ≤ VIN ≤ 12V 4.950 4.900 5.000 5.000 5.050 5.100 V V Line Regulation AMS1084/-1.5/-2.5/- ILOAD = 10 mA , 1.5V≤ (VIN - VOUT) ≤ 12V 0.3 0.6 mV mV Load Regulation (Notes 2, 3) AMS1084 (VIN - VOUT) =3V, 10mA ≤ IOUT ≤ 5A 0.1 0.2 0.3 0.4 AMS1084-1.5 VIN = 5V, 0 ≤ IOUT ≤ 5A 3 mV mV AMS1084-2.5 VIN = 5V, 0 ≤ IOUT ≤ 5A 3 mV mV AMS1084-2.85 VIN = 5V, 0 ≤ IOUT ≤ 5A 3 mV mV AMS1084-3.0 VIN = 5V, 0 ≤ IOUT ≤ 5A 3 mV mV AMS1084-3.3 VIN = 5V, 0 ≤ IOUT ≤ 5A 3 mV mV AMS1084-3.5 VIN = 5.25V, 0 ≤ IOUT ≤ 5A 3 mV mV AMS1084-5.0 VIN = 8V, 0 ≤ IOUT ≤ 5A 5 mV mV Dropout Voltage (VIN - VOUT) ∆VOUT , ∆VREF = 1%, IOUT = 5 A (Note 4) 1.3 1.5 V

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1084 Electrical Characteristics at IOUT = 0 mA, and TJ = +25°C unless otherwise specified. Parameter Device Conditions Min Typ Max Units Current Limit (VIN - VOUT) = 5V 5.00 6.00 7.00 A Minimum Load Current AMS1084 (VIN - VOUT) = 12V (Note 5) 5 10 mA Quiescent Current AMS1084/-1.5/-2.5/- VIN ≤ 12V mA Ripple Rejection AMS1084 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A, (VIN-VOUT ) = 3V, CADJ =25µF 60 75 dB AMS1084-1.5 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A, VIN = 4.5V dB AMS1084-2.5 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A, VIN = 5.5V dB AMS1084-2.85 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A, VIN = 6V dB AMS1084-3.0 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A VIN = 6V 60 72 dB AMS1084-3.3 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A VIN = 6.3V 60 72 dB AMS1084-3.5 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A VIN = 6.5V 60 72 dB AMS1084-5.0 f =120Hz , COUT = 25µF Tantalum, IOUT = 5A VIN = 8V 60 68 dB Thermal Regulation AMS1084 TA = 25°C, 30ms pulse 0.008 0.04 %W Adjust Pin Current AMS1084 10mA ≤ IOUT ≤ 5A , 1.5V≤ (VIN - VOUT) ≤ 12V 55 120 µA µA Adjust Pin Current Change AMS1084 10mA ≤ IOUT ≤ 5A , 1.5V≤ (VIN - VOUT) ≤ 12V 0.2 µA Temperature Stability 0.5 % Long Term Stability TA =125°C, 1000Hrs 0.3 1 % RMS Output Noise (% of VOUT ) TA = 25°C , 10Hz ≤ f ≤ 10kHz 0.003 Thermal Resistance Junction-to-Case M Package: Control Circuitry/ Power Transistor T Package: Control Circuitry/ Power Transistor 1.5/4.0 1.5/4.0 °C/W °C/W Parameters identified with boldface type apply over the full operating temperature range. Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test co nditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Note 2: Line and Load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipa tion is determined by the inp ut/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. Note 3:See thermal regulation specifications for changes in output voltage due to heating eff ects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead ~1/8” from the package. Note 4: Dropout voltage is specified over the full output current range of the device. Note 5: Minimum load current is defined as the minimum output current required to maintain regulation. When (V IN - VOUT) = 12V the device is guaranteed to regulate if the output current is greater than 10mA.

The AMS1084 series of adjustable and fixed regulators are easy to use and have all the protection features expected in high performance voltage regulators: short circuit protection and thermal shut-down. Pin compatible with older three term inal adjustable regulators, these devices offer the advantage of a lower dropout voltage, more precise reference tolerance and im proved reference stability with temperature. Stability The circuit design used in the AMS1084 series requires the use of an output capacitor as part of the device frequency compensation. The addition of 150 µF aluminum electrolytic or a 22 µF solid tantalum on the output will ensure stability for all operating conditions. When the adjustment terminal is by passed with a capacitor to improve the ripple rejection, the requirement for an output capacitor increas es. The value of 22µF tantalum or 150µF aluminum covers all cases of by passing the adjustm ent term inal. Without bypassing the adjustment terminal smaller capacitors can be used with equally good results. To ensure good transient response with heavy load current changes capacitor values on the order of 100 µF are us ed in the output of m any regulators. To further improve stability and transient response of these devi ces larger values of output capacitor can be used. Protection Diodes Unlike older regulators, the AMS1084 family does not need any protection diodes between the adju stment pin and the output and from the output to the input to prevent over-stressing the die. Internal resistors are lim iting the internal current paths on the AMS1084 adjustment pin, therefor e even with capacitors on the adjustment pin no protection diode is needed to ensure device safety under short-circuit conditions. Diodes between the input and output are not usually needed. Microsecond surge currents of 50A to 100A can be handled by the internal diode between the input and output pins of the device. In normal operations it is difficult to get those values of surge currents even with the us e of large output capacitances . If high value output capacitors are used, such as 1000µF to 5000 µF and the input pin is instantaneously shorted to ground, damage can occur. A diode from output to input is recommended, when a crowbar circuit at the input of the AMS1084 is used. Normal power supply cycling or even plugging and unplugging in the system will not generate current large enough to do any damage. The adjustment pin can be driven on a transient basis ±25V, with respect to the output without any device degradation. As with any IC regulator, none the protection circuitry will be functional and the internal transistors will break down if the m aximum input to output voltage differential is exceeded. AMS1084 IN OUT ADJ + COUT 150µF VOUT CADJ 10µF VIN Overload Recovery When the power is first turned on, as the input voltage rises, the output follows the input, perm itting the regulator to start up into heavy loads. During the start-up, as the input voltage is rising, the input-to-output voltage differential remains small, allowing the regulator to supply large output currents. A problem can occur with a heavy output load when the input voltage is high and the output voltage is low, when the removal of an output short will not permit the output voltage to recover. The load line for such a load may intersect two points on the output current curve. In this case, there are two stable output operating points for the regulator. With this double intersection, the power supply may need to be cy cled down to zero and brought up again to make the output recover. Ripple Rejection The ripple rejection values are m easured with the adjus tment pin bypassed. The impedance of the adjust pin capacitor at the ripple frequency should be less than the value of R1 (normally 100 Ω to120Ω) for a proper by passing and ripple rejection approaching the values shown. The size of the required adjust pin capacitor is a function of the input ripple frequency . If R1=100 Ω at 120Hz the adjust pin capacitor should be 25 µF. At 10kHz only 0.22 µF is needed. The ripple rejection will be a function of output voltage, in circuits without an adjust pin by pass capacitor. The output ripple will increase directly as a ratio of the output voltage to the reference voltage (VOUT / VREF). Output Voltage The AMS1084 series develops a 1. 25V reference voltage between the output and the adjust terminal. Placing a resistor between these two terminals causes a constant current to flow through R1 and down through R2 to set the overall output voltage. Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723

TYPICAL PERFORMANCE CHARACTERISTICS -2.0 -1.0 1.0 2.0 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (° C) 01 2 3 4 5 6 Dropout Voltage -0.20 -0.15 -0.10 -0.05 0.05 0.10 -50 -25 0 25 50 75 100 125 150 02 46 81 0 12 Short-Circuit Current Load Regulation -0.4 0.6 50 60 70 80 90 100 110 0 100 -40 100 Temperature Stability Ripple Rejection vs. Current 100 1k 10k 100k Ripple Rejection 10050 -0.6 ~~ ~~ -0.2 0.2 0.4 Load Transient Response 200 Line Transient Response 14 ~~ ~~ -60 -20 Maximum Power Dissipation* 120 130 140 150 TIME (µs) TIME (µs) CASE TEMPERATURE (° C) *AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE POWER (W) INPUT DEVIATION (V) OUTPUT VOLTAGE DEVIATION (mV) LOAD CURRENT (A) OUTPUT VOLTAGE DEVIATION (V) FREQUENCY (Hz) RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) OUTPUT CURRENT (0 TO I FULL LOAD) INPUT/OUTPUT DIFFERENTIAL (V) SHORT-CIRCUIT CURRENT (A) OUTPUT VOLTAGE CHANGE (%) TEMPERATURE (° C) OUTPUT VOLTAGE DEVIATION (%) OUTPUT CURRENT (A) MINIMUM INPUT/OUTPUT DIFFERENTIAL (V) fR = 120Hz VRIPPLE≤ 3VP-P fR =20kHz VRIPPLE≤ 0.5VP-P IOUT=IFULL LOAD (VIN-VOUT)≥VDROPOUT VRIPPLE≤ 3VP-P VRIPPLE≤ 0.5VP-P (VIN-VOUT) ≥ 3V CADJ = 0 VOUT = 10V IIN = 0.2A CIN = 1µF TANTALUM COUT = 10µF TANTALUMVOUT = 10V VIN = 13V PRELOAD = 100mA CIN = 1µF COUT = 10µF TANTALUM CADJ = 0 ∆I = 5A TJ =150° C TJ =25° C 0246 8 10 12 Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723

TYPICAL PERFORMANCE CHARACTERISTICS (Continued) -50 -25 0 25 50 75 125 100 02468 10 12 14 100 150 Minimum Operating Current (Adjustable only) Adjust Pin Current (Adjustable only) ADJUST PIN CURRENT ( µA) TEMPERATURE (° C)INPUT/OUTPUT DIFFERENTIAL (V) MINIMUM OPERATING CURRENT (mA) TJ = 25° C TJ = 150° C PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.

3 LEAD TO-220 PLASTIC PACKAGE (T)

0.330-0.370 0.050 (8.382-9.398) 0.090-0.110 TYP 0.390-0.415 (9.906-10.541) 0.165-0.180 (4.191-4.572) 0.045-0.055 (1.143-1.397) 0.095-0.115 (2.413-2.921) 0.013-0.023 (0.330-0.584) T (TO-220) AMS DRW# 042193 0.147-0.155 (3.734-3.937) DIA 0.230-0.270 (5.842-6.858) 0.460-0.500 (11.684-12.700) 0.570-0.620 (14.478-15.748) 0.218-0.252 (5.537-6.401) 0.520-0.570 (13.208-14.478) 0.980-1.070 (24.892-27.178) 0.028-0.038 (0.711-0.965) 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-263 PLASTIC DD (M)

0.335-0.380 0.050 0.060 (1.524) TYP (8.50-9.65) 0.090-0.110 TYP 0.390-0.415 (9.906-10.541) 0.165-0.180 (1.143-1.397) 0.095-0.115 (2.413-2.921) 0.050±0.012 (1.270±0.305) 0.013-0.023 (0.330-0.584) 0.059 (1.499) TYP (0.102 )+0.203 -0.102 0.004 +0.008 -0.004 M (DD3) AMS DRW# 042191 0.595-0.615 (15.113-15.621)

2 LEAD TO-263 PLASTIC DD (M)

0.050 0.060 (1.524) TYP 0.090-0.110 TYP 0.390-0.415 (9.906-10.541) 0.165-0.180 (1.143-1.397) 0.095-0.115 (2.413-2.921) 0.050±0.012 (1.270±0.305) 0.013-0.023 (0.330-0.584) 0.059 (1.499) TYP (0.102 )+0.203 -0.102 0.004 +0.008 -0.004 M (DD2) AMS DRW# 072191 0.0295 (0.7495) TYP 0.335-0.380 (8.50-9.65) 0.595-0.615 (15.113-15.621) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723

PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). TO-252 PLASTIC PACKAGE (D) 0.030 (0.762) TYP 0.087-0.094 (0.46-0.58) 0.020±0.002 (0.510±0.0508) 0.018-0.023 (0.46-0.58) D (D3) AMS DRW# 011601 0.035-0.050 (0.89-1.27) 0.035-0.045 (0.89-1.14) 0.235-0.245 (5.969-6.223) 0.156-0.204 (3.96-5.18) 0.255-0.265 (6.48-6.73) 0.206-0.214 (5.23-5.44) 0.025 (0.635) TYP 7.0° 0.380-0.410 (9.65-10.41) 0.045-0.060 (1.14-1.52) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723