AAT3201 150mA OmniPower™ LDO Linear Regulator General Description Features The AAT3201 PowerLinear OmniPower low dropout (LDO) linear regulator is ideal for systems where a low-cost solution is critical. This device features extremely low quiescent current, typically 20µA. Dropout voltage is also very low, typically 200mV. The AAT3201 has an enable pin feature which, when pulled low, will enter the LDO regulator into shutdown mode, removing power from its load and offering extended power conservation capabilities for portable, battery-powered applications. • • • • • • • • • • The AAT3201 has output short-circuit and overcurrent protection. In addition, the device has an over-temperature protection circuit that will shut down the LDO regulator during extended over-current events. • PowerLinear™ 20µA Quiescent Current Low Dropout: 200mV (typical) Guaranteed 150mA Output High Accuracy: ±2% Current Limit Protection Over-Temperature Protection Extremely Low Power Shutdown Mode Low Temperature Coefficient Factory-Programmed Output Voltages — 1.8V to 3.5V Stable Operation With Virtually Any Output Capacitor Type 5-Pin SOT23 Package Applications The AAT3201 is available in the Pb-free, space-saving 5-pin SOT23 package. The device is rated over the -40°C to +85°C temperature range. Since only a small, 1µF ceramic output capacitor is recommended, the AAT3201 is a truly cost-effective voltage conversion solution. • • Cellular Phones Consumer Electronics The AAT3201 is similar to the AAT3200 with the exception that it offers further power savings with its enable pin. Typical Application INPUT OUTPUT OUT IN AAT3201 ENABLE CIN 1µF GND 3201.2006.01.1.2 EN GND COUT 1µF GND 1 AAT3201 150mA OmniPower™ LDO Linear Regulator Pin Descriptions Pin # Symbol Function 1 IN Input pin. 2 GND 3 EN Enable pin; when pulled low, the PMOS pass transistor turns off and all internal circuitry enters low-power mode, consuming less than 1µA. 4 NC Not connected. 5 OUT Ground connection pin. Output pin; should be decoupled with 1µF or greater capacitor. Pin Configuration SOT23-5 (Top View) 2 IN 1 GND 2 EN 3 5 OUT 4 NC 3201.2006.01.1.2 AAT3201 150mA OmniPower™ LDO Linear Regulator Absolute Maximum Ratings1 TA = 25°C, unless otherwise noted. Symbol VIN VEN VENIN(MAX) IOUT TJ TLEAD Description Input Voltage EN to GND Voltage Maximum EN to Input Voltage Maximum DC Output Current Operating Junction Temperature Range Maximum Soldering Temperature (at leads, 10 sec) Value Units -0.3 to 6 -0.3 to 6 0.3 PD/(VIN-VO) -40 to 150 300 V V V mA °C °C Thermal Information2 Symbol ΘJA PD Description Thermal Resistance Power Dissipation Rating Units 150 667 °C/W mW Rating Units (VOUT+VDO) to 5.5 -40 to +85 V °C Recommended Operating Conditions Symbol VIN T Description Input Voltage Ambient Temperature Range 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. 3201.2006.01.1.2 3 AAT3201 150mA OmniPower™ LDO Linear Regulator Electrical Characteristics VIN = VOUT(NOM) + 1V, IOUT = 1mA, COUT = 1µF; TA = 25°C, unless otherwise noted. Symbol VOUT IOUT ISC IQ ISD ∆VOUT/VOUT Description DC Output Voltage Tolerance Maximum Output Current Short-Circuit Current Ground Current Shutdown Current Line Regulation ∆VOUT/VOUT Load Regulation VDO Dropout Voltage1 VEN(L) VEN(H) IEN(SINK) PSRR TSD THYS eN TC Conditions VOUT > 1.2V VOUT < 0.4V VIN = 5V, No Load EN = Inactive VIN = 4.0V to 5.5V VOUT = VOUT = VOUT = VOUT = VOUT = IL= 1 to 100mA VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = IOUT = 100mA VOUT = VOUT = VOUT = VOUT = VOUT = VOUT = EN Input Low Voltage EN Input High Voltage EN Input leakage Power Supply Rejection Ratio Over-Temperature Shutdown Threshold Over-Temperature Shutdown Hysteresis Output Noise Output Voltage Temperature Coefficient VIN = 5V VON = 5.5V 100Hz Min Typ -2.0 150 350 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 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 Max Units 2.0 % mA mA µA µA %/V 30 1 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 0.8 2.4 0.01 50 140 1 % mV V V µA dB °C 20 °C 350 80 µVRMS PPM/°C 1. VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 4 3201.2006.01.1.2 AAT3201 150mA OmniPower™ LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = VOUT + 1V, TA = 25°C, COUT = 5.6µF ceramic, IOUT = 100mA. 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 40mA 2.8 2.7 10mA 2.6 2.5 2.97 0 20 40 60 80 2.7 100 2.9 3.3 3.5 Input Voltage (V) Output Voltage vs. Input Voltage Dropout Voltage vs. Output Current 40 0 Dropout Voltage (mV) 1mA 3.02 10mA 3.01 40mA 3 300 80°C 200 25°C -30°C 100 0 2.99 3.5 4 4.5 5 0 5.5 25 Input Voltage (V) 75 100 125 150 Noise Spectrum 60 Noise (dB µV/rt Hz ) 30 40 20 0 1.E+01 50 Output Current (mA) PSRR With 10mA Load PSRR (dB) 3.1 Output Current (mA) 3.03 Output Voltage (V) 1mA 2.9 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 Freque ncy (Hz) 3201.2006.01.1.2 5 AAT3201 150mA OmniPower™ LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = VOUT + 1V, TA = 25°C, COUT = 5.6µF ceramic, IOUT = 100mA. Load Transient – 1mA/40mA Line Response With 1mA Load 3.4 4 3.2 3 3 2 Output 2.8 1 0 200 400 600 Input Voltage ( V ) Output Voltage ( V ) 5 Input 0 800 320 240 Output 3 160 80 2 0 -1 0 Time (µs) 6 3.4 4 3.2 3 3 2 Output 2.8 1 600 0 800 Output Voltage (V) 4 5 Input 400 3 320 240 Output 3 160 80 2 0 -1 Time (µs) Output Current (mA) 3.6 200 2 Load Transient – 1mA/80mA Input Voltage ( V ) Output Voltage ( V ) 3.8 0 1 Time (ms) Line Response With 10mA Load 2.6 -200 Output Current (mA) 3.6 2.6 -200 4 6 Output Voltage (V) 3.8 0 1 2 3 Time (ms) Line Response With 100mA Load 6 3.8 Output Voltage ( V ) Input 3.4 4 3.2 3 3 2 Output 2.8 2.6 -200 1 0 200 400 600 Input Voltage ( V ) 5 3.6 0 800 Time (µs) 6 3201.2006.01.1.2 AAT3201 150mA OmniPower™ LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = VOUT + 1V, TA = 25°C, COUT = 5.6µF ceramic, IOUT = 100mA. Power-Up With 1mA Load Turn-On With 1mA Load 4 5 4 3 3 2 1 0 1 -1 Output Output Voltage (V) 2 Enable 2 1 1 0 Output -2 0 0 -3 -1 Enable 2 0 1 Enable Voltage (V) 3 Input Voltage (V) Output Voltage (V) 4 3 -1 -1 2 0 1 2 Time (ms) Time (ms) Turn-On With 10mA Load Power-Up With 10mA Load 4 5 4 3 3 2 2 1 0 1 -1 Output Output Voltage (V) 2 Enable 1 1 0 Output -2 0 0 -3 -1 Enable 2 0 1 Enable Voltage (V) 3 Input Voltage (V) Output Voltage (V) 4 3 -1 -1 2 0 1 2 Time (ms) Time (ms) Turn-On With 100mA Load Power-Up With 100mA Load 4 5 4 3 3 2 2 2 1 Enable 0 1 -1 Output -3 0 1 Time (ms) 3201.2006.01.1.2 Enable 2 2 1 1 0 Output -2 0 -1 Output Voltage (V) 3 Enable Voltage (V) 3 Input Voltage (V) Output Voltage (V) 4 0 -1 -1 0 1 2 Time (ms) 7 AAT3201 150mA OmniPower™ LDO Linear Regulator Functional Block Diagram IN OUT Over-Current Protection Over-Temperature Protection EN VREF GND Functional Description The AAT3201 is intended for LDO regulator applications where output current load requirements range from no load to 150mA. The advanced circuit design of the AAT3201 has been optimized for use as the most cost-effective solution. The typical quiescent current level is just 20µA. The AAT3201 also contains an enable circuit, which has been provided to shut down the LDO regulator for additional power conservation in portable products. In the shutdown state, the LDO draws less than 1µA from input supply. 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-equivalent series resistance (ESR) ceramic capacitors. However, the design will allow for operation with a wide range of capacitor types. The AAT3201 has complete short-circuit and thermal protection. The integral combination of these two internal protection circuits gives the AAT3201 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. 3201.2006.01.1.2 AAT3201 150mA OmniPower™ LDO Linear Regulator Applications Information To assure the maximum possible performance is obtained from the AAT3201, please refer to the following application recommendations. needed can be calculated from the step size of the change in 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: 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 AAT3201 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 power supply ripple rejection. Ceramic, tantalum, or aluminum electrolytic capacitors may be selected for CIN as there is no specific capacitor ESR requirement. For 150mA 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. 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 AAT3201 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 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 AAT3201 has been specifically designed to function with very low ESR ceramic capacitors. Although the device is intended to operate with these 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. If large output current steps are required by an application, then an increased value for COUT should be considered. The amount of capacitance 3201.2006.01.1.2 Ceramic composition capacitors are highly recommended over all other types of capacitors for use with the AAT3201. 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 an important characteristic to consider when selecting a capacitor. ESR is the internal series resistance associated with a capacitor that includes lead 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. 9 AAT3201 150mA OmniPower™ LDO Linear Regulator Ceramic Capacitor Materials: Ceramic capacitors less than 0.1µF are typically made from NPO or C0G materials. NPO and C0G materials generally have tight tolerance and are very stable over temperature. Larger capacitor values are usually composed of X7R, X5R, Z5U, or Y5V dielectric materials. Large ceramic capacitors (i.e., greater than 2.2µF) are often available in low-cost Y5V and Z5U dielectrics. These two material types are not recommended for use with LDO regulators since the capacitor tolerance can vary 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 datasheets carefully when selecting capacitors for use with LDO regulators. Enable Function The AAT3201 features an LDO regulator enable / disable function. This pin (EN) is active high and is compatible with CMOS logic. To assure the LDO regulator will switch on, the EN turn-on control level must be greater than 2.4V. The LDO regulator will go into the disable shutdown mode when the voltage on the EN pin falls below 0.6V. If the enable function is not needed in a specific application, it may be tied to VIN to keep the LDO regulator in a continuously on state. Short-Circuit and Thermal Protection The AAT3201 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 10 to continually draw more than the current limit threshold, the LDO regulator's output voltage would drop to a level necessary to supply the current demanded by the load. Under short-circuit or other over-current operating conditions, the output voltage would drop and the AAT3201's die temperature would rapidly increase. 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 interaction between the short-circuit and thermal protection systems allows the LDO regulator to withstand indefinite short-circuit conditions without sustaining permanent damage. No-Load Stability The AAT3201 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 section of this datasheet for recommended typical output capacitor values. Thermal Considerations and High Output Current Applications The AAT3201 is designed to deliver a continuous output load current of 150mA 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. 3201.2006.01.1.2 AAT3201 150mA 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 Constants for the AAT3201 are TJ(MAX), the maximum junction temperature for the device which is 125°C, and ΘJA = 150°C/W, the package 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 267mW. At TA = 25°C, the maximum package power dissipation is 667mW. The maximum continuous output current for the AAT3201 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 = 2.5V, and TA = 25°C, IOUT(MAX) <267mA. The output short-circuit protection threshold is set between 150mA and 300mA. If the output load current were to exceed 267mA or if the ambient temperature were to increase, the internal die temperature will increase. If the condition remained constant and the short-circuit protection did not activate, there would be a potential damage hazard to the 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) 3201.2006.01.1.2 PD(MAX) + (VOUT × IOUT) IOUT + IGND The following is an example for an AAT3201 set for a 2.5 volt output: VOUT = 2.5V IOUT = 150mA IGND = 20µA VIN(MAX) = 667mW + (2.5V × 150mA) 150mA + 20µA VIN(MAX) = 6.95V From the discussion above, PD(MAX) was determined to equal 667mW at TA = 25°C. Thus, the AAT3201 can sustain a constant 2.5V output at a 150mA load current as long as VIN is ≤ 6.95V at an ambient temperature of 25°C. 5.5V is the maximum input operating voltage for the AAT3201, 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 AAT3201 set for a 2.5 volt output at 85°C: VOUT = 2.5V IOUT = 150mA IGND = 20µA VIN(MAX) = 267mW + (2.5V × 150mA) 150mA + 20µA VIN(MAX) = 4.28V From the discussion above, PD(MAX) was determined to equal 267mW at TA = 85°C. 11 AAT3201 150mA OmniPower™ LDO Linear Regulator IGND = 20µA IOUT = 150mA VIN = 5.0V VOUT = 2.5V PD(MAX) %DC = 100 (VIN - VOUT)IOUT + (VIN × IGND) 267mW %DC = 100 (5.0V - 2.5V)150mA + (5.0V × 20µA) (VOUT = 2.5V @ 25°C) 3.5 Voltage Drop (V) For example, an application requires VIN = 5.0V while VOUT = 2.5V at a 150mA load and TA = 85°C. VIN is greater than 4.28V, which is the maximum safe continuous input level for VOUT = 2.5V 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 3 200mA 2.5 2 1.5 1 0.5 0 0 10 20 30 40 50 60 70 80 90 100 Duty Cycle (%) Device Duty Cycle vs. VDROP (VOUT = 2.5V @ 50°C) 3.5 Voltage Drop (V) Higher input-to-output voltage differentials can be obtained with the AAT3201, 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 200mA 2.5 150mA 2 1.5 1 0.5 0 0 %DC = 71.2% 10 20 30 40 50 60 70 80 90 100 Duty Cycle (%) PD(MAX) was assumed to be 267mW. For a 150mA output current and a 2.5V drop across the AAT3201 at an ambient temperature of 85°C, the maximum on-time duty cycle for the device would be 71.2%. (VOUT = 2.5V @ 85°C) 3.5 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. Device Duty Cycle vs. VDROP 3 100mA 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 3201.2006.01.1.2 AAT3201 150mA 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, first 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 2.5V system using an AAT3201IGV2.5-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 = 378ms/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) PD(100mA) PD(100mA) = (VIN - VOUT)IOUT + (VIN x IGND) = (5.0V - 2.5V)100mA + (5.0V x 20µA) = 250mW PD(91.8%D/C) = %DC x PD(100mA) PD(91.8%D/C) = 0.918 x 250mW PD(91.8%D/C) = 229.5mW The power dissipation for a 100mA load occurring for 91.8% of the duty cycle will be 229.5mW. Now the power dissipation for the remaining 8.2% of the duty cycle at the 150mA load can be calculated: 3201.2006.01.1.2 = (VIN - VOUT)IOUT + (VIN x IGND) PD(MAX) PD(150mA) = (5.0V - 2.5V)150mA + (5.0V x 20µA) PD(150mA) = 375mW PD(8.2%D/C) = %DC x PD(150mA) PD(8.2%D/C) = 0.082 x 375mW PD(8.2%D/C) = 30.75mW The power dissipation for a 150mA load occurring for 8.2% of the duty cycle will be 20.9mW. Finally, the two power dissipation levels can summed to determine the total true power dissipation under the varied load. PD(total) = PD(100mA) + PD(150mA) PD(total) = 229.5mW + 30.75mW PD(total) = 260.25mW The maximum power dissipation for the AAT3201 operating at an ambient temperature of 85°C is 267mW. The device in this example will have a total power dissipation of 260.25mW. This is within the thermal limits for safe operation of the device. Printed Circuit Board Layout Recommendations In order to obtain the maximum performance from the AAT3201 LDO regulator, careful consideration should be given 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 AAT3201, 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. 13 AAT3201 150mA OmniPower™ LDO Linear Regulator Ordering Information Output Voltage Package Marking1 Part Number (Tape and Reel)2 1.8V SOT23-5 FDXYY AAT3201IGV-1.8-T1 2.0V SOT23-5 AAT3201IGV-2.0-T1 2.3V SOT23-5 AAT3201IGV-2.3-T1 2.4V SOT23-5 AAT3201IGV-2.4-T1 2.5V SOT23-5 FFXYY AAT3201IGV-2.5-T1 2.7V SOT23-5 DJXYY AAT3201IGV-2.7-T1 2.8V SOT23-5 DKXYY AAT3201IGV-2.8-T1 2.85V SOT23-5 3.0V SOT23-5 DLXYY AAT3201IGV-3.0-T1 3.3V SOT23-5 DMXYY AAT3201IGV-3.3-T1 3.5V SOT23-5 FNXYY AAT3201IGV-3.5-T1 AAT3201IGV-2.85-T1 All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means semiconductor products that are in compliance with current RoHS standards, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. For more information, please visit our website at http://www.analogictech.com/pbfree. 1. XYY = assembly and date code. 2. Sample stock is generally held on all part numbers listed in BOLD. 14 3201.2006.01.1.2 AAT3201 150mA OmniPower™ LDO Linear Regulator Package Information SOT23-5 2.85 ± 0.15 1.90 BSC 0.40 ± 0.10 0.075 ± 0.075 0.15 ± 0.07 4° ± 4° 10° ± 5° 1.10 ± 0.20 0.60 REF 1.20 ± 0.25 2.80 ± 0.20 1.575 ± 0.125 0.95 BSC 0.60 REF 0.45 ± 0.15 GAUGE PLANE 0.10 BSC All dimensions in millimeters. © Advanced Analogic Technologies, Inc. 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. Customers are advised 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 3201.2006.01.1.2 15