AAT3200 OmniPower™ LDO Linear Regulator General Description Features The AAT3200 PowerLinear™ OmniPower low dropout (LDO) linear regulator is ideal for systems where a low-cost solution is required. This device features extremely low quiescent current which is typically 20µA. Dropout voltage is also very low, typically 200mV. The AAT3200 has output shortcircuit and over-current protection. In addition, the device has an over-temperature protection circuit which will shut down the LDO regulator during extended over-current events. • • • • • • • • • The AAT3200 is available in a space-saving SOT23 package or a SOT-89 package for applications requiring increased power dissipation. The device is rated over a -40°C to +85°C temperature range. Since only a small, 1µF ceramic output capacitor is required, the AAT3200 is a truly cost-effective voltage conversion solution. The AAT3201 is a similar product for this application, especially when a shutdown mode is required for further power savings. • • PowerLinear™ 250mA Output for SOT-89 Package 150mA Output for SOT23 Package 20µA Quiescent Current Low Dropout: 200mV (typ) High Accuracy: ±2.0% Current Limit Protection Over-Temperature Protection Low Temperature Coefficient Factory-Programmed Output Voltages: 1.8V to 3.5V Stable Operation With Virtually Any Output Capacitor Type 3-Pin SOT-89 and SOT23 Packages Applications • • CD-ROM Drives Consumer Electronics Typical Application INPUT OUTPUT IN OUT AAT3200 GND GND 3200.2005.04.1.1 GND 1 AAT3200 OmniPower™ LDO Linear Regulator Pin Descriptions Pin # Symbol SOT23-3 SOT-89 1 1 GND 3 2 IN 2 3 OUT Function Ground connection. Input; should be decoupled with 1µF or greater capacitor. Output; should be decoupled with 1µF or greater output capacitor. Pin Configuration SOT23-3 (Top View) GND SOT-89 (Top View) 1 3 OUT 2 2 IN 3 OUT 2 IN 1 GND 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator Absolute Maximum Ratings1 TA = 25°C, unless otherwise noted. Symbol VIN IOUT TJ TLEAD Description Input Voltage DC Output Current Operating Junction Temperature Range Maximum Soldering Temperature (at leads, 10 sec) Value Units -0.3 to 6 PD/(VIN-VO) -40 to 150 300 V mA °C °C Rating Units 200 50 500 2 °C/W °C/W mW W Thermal Information2 Symbol ΘJA PD Description Maximum Thermal Resistance (SOT23-3) Maximum Thermal Resistance (SOT-89) Maximum Power Dissipation (SOT23-3) Maximum Power Dissipation (SOT-89) Recommended Operating Conditions Symbol VIN T Description Input Voltage Ambient Temperature Range Rating Units (VOUT+VDO) to 5.5 -40 to +85 V °C 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time. 2. Mounted on a demo board. 3200.2005.04.1.1 3 AAT3200 OmniPower™ LDO Linear Regulator Electrical Characteristics VIN = VOUT(NOM) + 1V, IOUT = 1mA, COUT = 1µF, TA = 25°C, unless otherwise noted. Symbol VOUT IOUT SOT-89 IOUT SOT23 ISC IQ ∆VOUT/VOUT Description Conditions DC Output Voltage Tolerance Maximum Output Current Maximum Output Current Short-Circuit Current Ground Current Line Regulation VOUT > 1.2V VOUT > 1.2V VOUT < 0.4V VIN = 5V, No Load VIN = 4.0V to 5.5V ∆VOUT/VOUT Load Regulation IL = 1 to 100mA VDO Dropout Voltage1 IOUT = 100mA Power Supply Rejection Ratio Over Temperature Shutdown Threshold Over Temperature Shutdown Hysteresis Output Noise Output Voltage Temperature Coefficient 100Hz PSRR TSD THYS eN TC Min Typ -2.0 250 150 VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT 10Hz through 10kHz = = = = = = = = = = = = = = = = = = = = = = 1.8 2.0 2.3 2.4 2.5 2.7 2.8 2.85 3.0 3.3 3.5 1.8 2.0 2.3 2.4 2.5 2.7 2.8 2.85 3.0 3.3 3.5 350 20 0.15 1.0 0.9 0.8 0.8 0.8 0.7 0.7 0.7 0.6 0.5 0.5 290 265 230 220 210 200 190 190 190 180 180 50 140 Max Units 2.0 % mA mA mA µA %/V 30 0.6 1.65 1.60 1.45 1.40 1.35 1.25 1.20 1.20 1.15 1.00 1.00 410 385 345 335 335 310 305 300 295 295 290 % mV dB °C 20 °C 350 80 µVRMS ppm/°C 1. VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 4 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = VOUT + 1V, TA = 25°C; output capacitor is 1µF ceramic, IOUT = 40mA. Output Voltage vs. Input Voltage 3.03 3.1 3.02 3 Output Voltage (V) Output Voltage (V) Output Voltage vs. Output Current 3.01 30°C 3 25°C 2.99 80°C 2.98 1mA 2.9 40mA 2.8 2.7 10mA 2.6 2.5 2.97 0 20 40 60 80 2.7 100 2.9 3.5 400 Dropout Voltage (mV) 3.03 Output Voltage (V) 3.3 Dropout Voltage vs. Output Current Output Voltage vs. Input Voltage 1mA 3.02 10mA 3.01 40mA 3 2.99 300 80ºC 200 25ºC -30ºC 100 0 3.5 4 4.5 5 5.5 0 25 Input Voltage (V) 75 100 125 150 AAT3200 Noise Spectrum 60 Noise (dBµV/rt Hz) 30 40 20 0 1.E+01 50 Output Current (mA) PSRR With 10mA Load PSRR (dB) 3.1 Input Voltage (V) Output Current (mA) 1.E+02 1.E+03 Frequency (Hz) 1.E+04 1.E+05 20 10 0 -10 -20 -30 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 Frequency (Hz) 3200.2005.04.1.1 5 AAT3200 OmniPower™ LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = VOUT + 1V, TA = 25°C; output capacitor is 1µF ceramic, IOUT = 40mA. Line Response With 10mA Load 3.8 6 3.6 5 3.6 5 3.4 4 3.4 4 3.2 3 3.2 3 3 2 3 2 2.8 1 2.8 1 2.6 -200 0 200 400 600 Output Voltage (V) 6 2.6 -200 0 800 0 200 Time (µs) 5 3.4 4 3.2 3 3 2 2.8 1 200 400 600 Output Voltage (V) 3.6 320 4 240 160 3 80 2 0 800 0 -1 0 1 Time (µs) 2 3 Time (ms) Load Transient – 1mA/80mA Power-Up With 1mA Load 320 80 5 4 3 3 2 2 1 0 1 -1 Input Voltage (V) 160 3 Output Current (mA) 240 4 Output Voltage (V) 4 Output Voltage (V) Output Current (mA) 6 Input Voltage (V) Output Voltage (V) Load Transient – 1mA/40mA 3.8 0 0 800 600 Time (µs) Line Response With 100mA Load 2.6 -200 400 Input Voltage (V) 3.8 Input Voltage (V) Output Voltage (V) Line Response With 1mA Load -2 2 0 -1 0 1 Time (ms) 6 2 3 0 -3 -1 0 1 2 Time (ms) 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = VOUT + 1V, TA = 25°C; output capacitor is 1µF ceramic, IOUT = 40mA. Power-Up With 10mA Load Power-Up With 100mA Load 4 4 5 5 4 2 1 0 1 -1 Output Voltage (V) 2 3 3 2 2 1 0 -1 1 -2 0 -3 -1 0 1 Time (ms) 3200.2005.04.1.1 2 Input Voltage (V) 3 Input Voltage (V) Output Voltage (V) 4 3 -2 -3 0 -1 0 1 2 Time (ms) 7 AAT3200 OmniPower™ LDO Linear Regulator Functional Block Diagram IN OUT Over-Current Protection Over-Temperature Protection VREF GND Functional Description The AAT3200 is intended for LDO regulator applications where output current load requirements range from no load to 150mA for a SOT23 package, or 250mA for a SOT-89 package. The advanced circuit design of the AAT3200 has been optimized for use as the most cost-effective solution. The typical quiescent current level is just 20µA and it does not increase with increasing current load. The LDO also demonstrates excellent power supply rejection ratio (PSRR) and load and line transient response characteristics. 8 The LDO regulator output has been specifically optimized to function with low-cost, low-ESR ceramic capacitors. However, the design will allow for operation with a wide range of capacitor types. The AAT3200 has complete short-circuit and thermal protection. The integral combination of these two internal protection circuits gives the AAT3200 a comprehensive safety system to guard against extreme adverse operating conditions. Device power dissipation is limited to the package type and thermal dissipation properties. Refer to the thermal considerations section of this datasheet for details on device operation at maximum output load levels. 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator Applications Information To assure the maximum possible performance is obtained from the AAT3200, please refer to the following application recommendations. Input Capacitor Typically, a 1µF or larger capacitor is recommended for CIN in most applications. A CIN capacitor is not required for basic LDO regulator operation. However, if the AAT3200 is physically located any distance more than one or two centimeters from the input power source, a CIN capacitor will be needed for stable operation. CIN should be located as closely to the device VIN pin as practically possible. CIN values greater than 1µF will offer superior input line transient response and will assist in maximizing the highest possible power supply ripple rejection. Ceramic, tantalum, or aluminum electrolytic capacitors may be selected for CIN. There is no specific capacitor equivalent series resistance (ESR) requirement for CIN. For 150mA to 250mA LDO regulator output operation, ceramic capacitors are recommended for CIN due to their inherent capability over tantalum capacitors to withstand input current surges from low impedance sources such as batteries in portable devices. Output Capacitor For proper load voltage regulation and operational stability, a capacitor is required between pins VOUT and GND. The COUT capacitor connection to the LDO regulator ground pin should be made as direct as practically possible for maximum device performance. The AAT3200 has been specifically designed to function with very low ESR ceramic capacitors. Although the device is intended to operate with low ESR capacitors, it is stable over a very wide range of capacitor ESR, thus it will also work with some higher ESR tantalum or aluminum electrolytic capacitors. However, for best performance, ceramic capacitors are recommended. The value of COUT typically ranges from 0.47µF to 10µF; however, 1µF is sufficient for most operating conditions. 3200.2005.04.1.1 If large output current steps are required by an application, then an increased value for COUT should be considered. The amount of capacitance needed can be calculated from the step size of the change in the output load current expected and the voltage excursion that the load can tolerate. The total output capacitance required can be calculated using the following formula: COUT = ∆I × 15µF ∆V Where: ∆I = maximum step in output current ∆V = maximum excursion in voltage that the load can tolerate Note that use of this equation results in capacitor values approximately two to four times the typical value needed for an AAT3200 at room temperature. The increased capacitor value is recommended if tight output tolerances must be maintained over extreme operating conditions and maximum operational temperature excursions. If tantalum or aluminum electrolytic capacitors are used, the capacitor value should be increased to compensate for the substantial ESR inherent to these capacitor types. Capacitor Characteristics Ceramic composition capacitors are highly recommended over all other types of capacitors for use with the AAT3200. Ceramic capacitors offer many advantages over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor typically has very low ESR, is lower cost, has a smaller PCB footprint, and is non-polarized. Line and load transient response of the LDO regulator is improved by using low ESR ceramic capacitors. Since ceramic capacitors are non-polarized, they are less prone to damage if incorrectly connected. Equivalent Series Resistance: ESR is a very important characteristic to consider when selecting a capacitor. ESR is the internal series resistance associated with a capacitor that includes lead 9 AAT3200 OmniPower™ LDO Linear Regulator resistance, internal connections, capacitor size and area, material composition, and ambient temperature. Typically, capacitor ESR is measured in milliohms for ceramic capacitors and can range to more than several ohms for tantalum or aluminum electrolytic capacitors. Ceramic Capacitor Materials: Ceramic capacitors less than 0.1µF are typically made from NPO or C0G materials. NPO and C0G materials are typically tight tolerance and very stable over temperature. Larger capacitor values are typically composed of X7R, X5R, Z5U, or Y5V dielectric materials. Large ceramic capacitors, typically greater than 2.2µF, are often available in the low-cost Y5V and Z5U dielectrics. These two material types are not recommended for use with LDO regulators since the capacitor tolerance can vary by more than ±50% over the operating temperature range of the device. A 2.2µF Y5V capacitor could be reduced to 1µF over the full operating temperature range. This can cause problems for circuit operation and stability. X7R and X5R dielectrics are much more desirable. The temperature tolerance of X7R dielectric is better than ±15%. Capacitor area is another contributor to ESR. Capacitors that are physically large in size will have a lower ESR when compared to a smaller sized capacitor of equivalent material and capacitance value. These larger devices can also improve circuit transient response when compared to an equal value capacitor in a smaller package size. Consult capacitor vendor data sheets carefully when selecting capacitors for use with LDO regulators. Short-Circuit Protection and Thermal Protection The AAT3200 is protected by both current limit and over-temperature protection circuitry. The internal short-circuit current limit is designed to activate when the output load demand exceeds the maximum rated output. If a short-circuit condition were to continually draw more than the current limit threshold, the LDO regulator's output voltage will drop to a level necessary to supply the current 10 demanded by the load. Under short-circuit or other over-current operating conditions, the output voltage will drop and the AAT3200's die temperature will increase rapidly. Once the regulator's power dissipation capacity has been exceeded and the internal die temperature reaches approximately 140°C the system thermal protection circuit will become active. The internal thermal protection circuit will actively turn off the LDO regulator output pass device to prevent the possibility of over-temperature damage. The LDO regulator output will remain in a shutdown state until the internal die temperature falls back below the 140°C trip point. The combination and interaction between the shortcircuit and thermal protection systems allow the LDO regulator to withstand indefinite short-circuit conditions without sustaining permanent damage. No-Load Stability The AAT3200 is designed to maintain output voltage regulation and stability under operational noload conditions. This is an important characteristic for applications where the output current may drop to zero. An output capacitor is required for stability under no-load operating conditions. Refer to the output capacitor considerations section for recommended typical output capacitor values. Thermal Considerations and High Output Current Applications The AAT3200 is designed to deliver a continuous output load current of 150mA for SOT23 or 250mA for SOT-89 under normal operating conditions. The limiting characteristic for the maximum output load safe operating area is essentially package power dissipation and the internal preset thermal limit of the device. In order to obtain high operating currents, careful device layout and circuit operating conditions need to be taken into account. The following discussions will assume the LDO regulator is mounted on a printed circuit board utilizing the minimum recommended footprint and the printed circuit board is 0.062-inch thick FR4 material with one ounce copper. 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator At any given ambient temperature (TA), the maximum package power dissipation can be determined by the following equation: This formula can be solved for VIN to determine the maximum input voltage. VIN(MAX) = -T T PD(MAX) = J(MAX) A θJA PD(MAX) + (VOUT × IOUT) IOUT + IGND Constants for the AAT3200 are TJ(MAX), the maximum junction temperature for the device which is 125°C and ΘJA = 200°C/W, the SOT23 thermal resistance. Typically, maximum conditions are calculated at the maximum operating temperature where TA = 85°C, under normal ambient conditions TA = 25°C. Given TA = 85°C, the maximum package power dissipation is 200mW. At TA = 25°C, the maximum package power dissipation is 500mW. The following is an example for an AAT3200 set for a 3.0 volt output: The maximum continuous output current for the AAT3200 is a function of the package power dissipation and the input-to-output voltage drop across the LDO regulator. Refer to the following simple equation: IOUT(MAX) < PD(MAX) VIN - VOUT For example, if VIN = 5V, VOUT = 3V, and TA = 25°C, IOUT(MAX) < 250mA. The output short-circuit protection threshold is set between 150mA and 300mA. If the output load current were to exceed 250mA or if the ambient temperature were to increase, the internal die temperature will increase. If the condition remained constant and the short-circuit protection were not to activate, there would be a potential damage hazard to LDO regulator since the thermal protection circuit will only activate after a short-circuit event occurs on the LDO regulator output. To determine the maximum input voltage for a given load current, refer to the following equation. This calculation accounts for the total power dissipation of the LDO regulator, including that caused by ground current. PD(MAX) = (VIN - VOUT)IOUT + (VIN × IGND) 3200.2005.04.1.1 From the discussion above, PD(MAX) was determined to equal 417mW at TA = 25°C. VOUT = 3.0V IOUT = 150mA IGND = 20µA VIN(MAX) = 500mW + (3.0V × 150mA) 150mA + 20µA VIN(MAX) > 5.5V Thus, the AAT3200 can sustain a constant 3.0V output at a 150mA load current as long as VIN is ≤ 5.5V at an ambient temperature of 25°C. 5.5V is the maximum input operating voltage for the AAT3200, thus at 25°C, the device would not have any thermal concerns or operational VIN(MAX) limits. This situation can be different at 85°C. The following is an example for an AAT3200 set for a 3.0 volt output at 85°C: From the discussion above, PD(MAX) was determined to equal 200mW at TA = 85°C. VOUT = 3.0V IOUT = 150mA IGND = 20µA VIN(MAX) = 200mW + (3.0V × 150mA) 150mA + 20µA VIN(MAX) = 4.33V 11 AAT3200 OmniPower™ LDO Linear Regulator For example, an application requires VIN = 5.0V while VOUT = 3.0V at a 150mA load and TA = 85°C. VIN is greater than 4.33V, which is the maximum safe continuous input level for VOUT = 3.0V at 150mA for TA = 85°C. To maintain this high input voltage and output current level, the LDO regulator must be operated in a duty-cycled mode. Refer to the following calculation for duty-cycle operation: Device Duty Cycle vs. VDROP (VOUT = 2.5V @ 25°C) 3.5 Voltage Drop (V) Higher input-to-output voltage differentials can be obtained with the AAT3200, while maintaining device functions in the thermal safe operating area. To accomplish this, the device thermal resistance must be reduced by increasing the heat sink area or by operating the LDO regulator in a duty-cycled mode. 3 2.5 200mA 2 1.5 150mA 1 0.5 0 0 10 20 30 40 50 60 70 80 90 100 Duty Cycle (%) PD(MAX) is assumed to be 200mW Device Duty Cycle vs. VDROP IGND = 20µA IOUT = 150mA VIN = 5.0V (VOUT = 2.5V @ 50°C) VOUT = 3.0V %DC = 100 PD(MAX) (VIN - VOUT)IOUT + (VIN × IGND) %DC = 100 200mW (5.0V - 3.0V)150mA + (5.0V × 20µA) Voltage Drop (V) 3.5 3 100mA 2.5 200mA 2 150mA 1.5 1 0.5 0 0 10 20 30 %DC = 66.6% For a 150mA output current and a 2.0 volt drop across the AAT3200 at an ambient temperature of 85°C, the maximum on-time duty cycle for the device would be 66.6%. 50 60 70 80 90 100 Device Duty Cycle vs. VDROP (VOUT = 2.5V @ 85°C) 3.5 100mA 3 Voltage Drop (V) The following family of curves shows the safe operating area for duty-cycled operation from ambient room temperature to the maximum operating level. 40 Duty Cycle (%) 50mA 2.5 2 200mA 1.5 150mA 1 0.5 0 0 10 20 30 40 50 60 70 80 90 100 Duty Cycle (%) 12 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator High Peak Output Current Applications Some applications require the LDO regulator to operate at continuous nominal levels with short duration, high-current peaks. The duty cycles for both output current levels must be taken into account. To do so, one would first need to calculate the power dissipation at the nominal continuous level, then factor in the addition power dissipation due to the short duration, high-current peaks. For example, a 3.0V system using a AAT3200IGV2.5-T1 operates at a continuous 100mA load current level and has short 150mA current peaks. The current peak occurs for 378µs out of a 4.61ms period. It will be assumed the input voltage is 5.0V. First the current duty cycle percentage must be calculated: % Peak Duty Cycle: X/100 = 378µs/4.61ms % Peak Duty Cycle = 8.2% The LDO regulator will be under the 100mA load for 91.8% of the 4.61ms period and have 150mA peaks occurring for 8.2% of the time. Next, the continuous nominal power dissipation for the 100mA load should be determined then multiplied by the duty cycle to conclude the actual power dissipation over time. PD(MAX) = (VIN - VOUT)IOUT + (VIN x IGND) PD(100mA) = (4.2V - 3.0V)100mA + (4.2V x 20µA) PD(100mA) = 120mW PD(91.8%D/C) = %DC x PD(100mA) PD(91.8%D/C) = 0.918 x 120mW PD(91.8%D/C) = 110.2mW The power dissipation for 100mA load occurring for 91.8% of the duty cycle will be 110.2mW. Now the power dissipation for the remaining 8.2% of the duty cycle at the 150mA load can be calculated: PD(8.2%D/C) = %DC x PD(150mA) PD(8.2%D/C) = 0.082 x 180mW PD(8.2%D/C) = 14.8mW The power dissipation for a 150mA load occurring for 8.2% of the duty cycle will be 14.8mW. Finally, the two power dissipation levels can be summed to determine the total power dissipation under the varied load. PD(total) = PD(100mA) + PD(150mA) PD(total) = 110.2mW + 14.8mW PD(total) = 125.0mW The maximum power dissipation for the AAT3200 operating at an ambient temperature of 85°C is 200mW. The device in this example will have a total power dissipation of 125.0mW. This is well within the thermal limits for safe operation of the device. Printed Circuit Board Layout Recommendations In order to obtain the maximum performance from the AAT3200 LDO regulator, very careful attention must be paid in regard to the printed circuit board layout. If grounding connections are not properly made, power supply ripple rejection and LDO regulator transient response can be compromised. The LDO regulator external capacitors CIN and COUT should be connected as directly as possible to the ground pin of the LDO regulator. For maximum performance with the AAT3200, the ground pin connection should then be made directly back to the ground or common of the source power supply. If a direct ground return path is not possible due to printed circuit board layout limitations, the LDO ground pin should then be connected to the common ground plane in the application layout. PD(MAX) = (VIN - VOUT)IOUT + (VIN x IGND) PD(150mA) = (4.2V - 3.0V)150mA + (4.2V x 20µA) PD(150mA) = 180mW 3200.2005.04.1.1 13 AAT3200 OmniPower™ LDO Linear Regulator Ordering Information Output Voltage Package Marking1 Part Number (Tape and Reel)2 1.8V SOT-23-3 FAXYY AAT3200IGY-1.8-T1 2.0V SOT-23-3 EZXYY AAT3200IGY-2.0-T1 2.3V SOT-23-3 AAT3200IGY-2.3-T1 2.4V SOT-23-3 AAT3200IGY-2.4-T1 2.5V SOT-23-3 2.7V SOT-23-3 2.8V SOT-23-3 2.85V SOT-23-3 3.0V SOT-23-3 DGXYY AAT3200IGY-3.0-T1 3.3V SOT-23-3 DHXYY AAT3200IGY-3.3-T1 3.5V SOT-23-3 DIXYY AAT3200IGY-3.5-T1 1.8V SOT-89 320018 AAT3200IQY-1.8-T1 2.0V SOT-89 320020 AAT3200IQY-2.0-T1 2.3V SOT-89 320023 AAT3200IQY-2.3-T1 2.4V SOT-89 320024 AAT3200IQY-2.4-T1 2.5V SOT-89 320025 AAT3200IQY-2.5-T1 2.7V SOT-89 320027 AAT3200IQY-2.7-T1 2.8V SOT-89 320028 AAT3200IQY-2.8-T1 2.85V SOT-89 3200285 AAT3200IQY-2.85-T1 3.0V SOT-89 320030 AAT3200IQY-3.0-T1 3.3V SOT-89 320033 AAT3200IQY-3.3-T1 3.5V SOT-89 320035 AAT3200IQY-3.5-T1 FRXYY AAT3200IGY-2.5-T1 AAT3200IGY-2.7-T1 EYXYY AAT3200IGY-2.8-T1 AAT3200IGY-2.85-T1 1. XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD. 14 3200.2005.04.1.1 AAT3200 OmniPower™ LDO Linear Regulator Package Information SOT23-3 2.37 ± 0.27 1.30 ± 0.10 2.92 ± 0.12 0.95 BSC 4° ± 4° 0.14 ± 0.06 0.96 ± 0.21 0.86 ± 0.16 0.075 ± 0.075 1.90 BSC 0.40 ± 0.10 × 3 0.50 ± 0.10 0.54 REF All dimensions in millimeters. 3200.2005.04.1.1 15 AAT3200 OmniPower™ LDO Linear Regulator SOT-89 4.50 ± 0.10 4.095 ± 0.155 2.445 ± 0.155 1.615 ± 0.215 3.00 BSC 0.42 ± 0.06 0.42 ± 0.06 1.00 ± 0.20 0.395 ± 0.045 1.50 ± 0.10 MATTED FINISH POLISH 0.48 ± 0.08 All dimensions in millimeters. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. AnalogicTech warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with AnalogicTech’s standard warranty. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed. Advanced Analogic Technologies, Inc. 830 E. Arques Avenue, Sunnyvale, CA 94085 Phone (408) 737-4600 Fax (408) 737-4611 16 3200.2005.04.1.1