PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch General Description Features The AAT4282A SmartSwitch™ is a member of AnalogicTech’s Application Specific Power MOSFET™ (ASPM™) product family. The AAT4282A is a dual P-channel MOSFET power switch designed for high-side load-switching applications. Each MOSFET has a typical RDS(ON) of 60mΩ, allowing increased load switch current handling capacity with a low forward voltage drop. The device is available in three different versions with flexible turn-on and turn-off characteristics – from very fast to slew-rate limited. The standard 4282A (-1) version has a slew-rate limited turn-on load switch. The AAT4282A (-2) version features fast turn-on capability, typically less than 500ns turn-on and 3μs turn-off times. The AAT4282A (-3) variation offers a shutdown load discharge circuit to rapidly turn off a load circuit when the switch is disabled. An additional feature is a slew-rate selector pin which can switch between fast and slow slew rate. • VIN Range: 1.5V to 6.5V • Low RDS(ON) ▪ 60mΩ Typical @ 5V ▪ 140mΩ Typical @ 1.5V • Slew Rate Turn-On Time Options ▪ 1ms ▪ 0.5μs ▪ 100μs • Fast Shutdown Load Discharge Option • Low Quiescent Current ▪ Typically 1μA • TTL/CMOS Input Logic Level • Temperature Range -40°C to 85°C • FTDFN22-8 Package Applications • • • • • • • • All the AAT4282A load switch versions are designed to operate from 1.5V up to 6.5V, making them ideal for both 3V and 5V systems. Input logic levels are TTL and 2.5V to 5V CMOS compatible. The quiescent supply current is a very low 1μA. The AAT4282A is available in the Pb-free, low profile 2.0x2.0mm FTDFN22-8 package and is specified over the -40 to 85°C temperature range. Cellular Telephones Digital Still Cameras Hotswap Supplies Notebook Computers PDA Phones PDAs PMPs Smartphones Typical Application INA INA OUTA OUTA INB INB OUTB OUTB C1 1μF C2 1μF ON/OFF ENA ON/OFF ENB FAST/SLOW 4282A.2008.02.1.2 FAST AAT4282A GND N/C www.analogictech.com C3 0.1μF C4 0.1μF 1 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Pin Descriptions Pin # Symbol 1 INA 2 ENA 3 ENB 4 INB 5 6 7 8 OUTB GND FAST OUTA Function This is the pin to the P-channel MOSFET source for Switch A. Bypass to ground through a 1μF capacitor. INA is independent of INB Active-High Enable Input A. A logic low turns the switch off and the device consumes less than 1μA of current. Logic high resumes normal operation. Active-High Enable Input B. A logic low turns the switch off and the device consumes less than 1μA of current. Logic high resumes normal operation. This is the pin to the P-channel MOSFET source for Switch B. Bypass to ground through a 1μF capacitor. INB is independent of INA. This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor. Ground connection Active-high input Switches between FAST (Logic H) and SLOW (Logic L) Slew rate This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor. Pin Configuration FTDFN22-8 (Top View) INA ENA ENB INB 2 1 8 OUTA 2 7 FAST 3 6 GND 4 5 OUTB www.analogictech.com 4282A.2008.02.1.2 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Selector Guide Slew Rate (Typ) Part Number FAST (H) AAT4282A-1* AAT4282A-2* AAT4282A-3 1ms 0.5μs 100μs SLOW (L) Active Pull-Down Enable 1ms NO NO YES Active High Active High Active High Absolute Maximum Ratings1 Symbol Description VIN VEN, FAST VOUT IMAX IDM TJ TLEAD VESD IN to GND EN, FAST to GND OUT to GND Maximum Continuous Switch Current Maximum Pulsed Current (Duty Cycle ≤ 10%) Operating Junction Temperature Range Maximum Soldering Temperature (at leads) ESD Rating2 – HBM Value Units -0.3 to 7 -0.3 to 7 -0.3 to VIN + 0.3 3 5.5 -40 to 150 300 4000 V V V A A °C °C V Value Units 70 1.78 °C/W W Thermal Characteristics3 Symbol θJA PD Description Thermal Resistance Maximum Power Dissipation 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. Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. 3. Mounted on a AAT4282A demo board in still 25°C air. 4282A.2008.02.1.2 www.analogictech.com 3 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Electrical Characteristics1 VIN = 5V, TA = -40 to 85°C unless otherwise noted. Typical values are at TA = 25°C. Per channel. Symbol Description Conditions AAT4282A All Versions VIN Operation Voltage IQ Quiescent Current IQ(OFF) Off Supply Current ISD(OFF) Off Switch Current RDS(ON) Min Typ 1.5 ON/OFF = ACTIVE, FAST = VIN, IOUT = 0 ON/OFF = Inactive, OUT = Open ON/OFF = GND, VOUT = 0 VIN = 6.5V VIN = 5V VIN = 4.2V VIN = 3.0V VIN = 1.80V VIN = 1.5V On-Resistance A or B TCRRDS On Resistance Temperature Coefficient VIL ON/OFF Input Logic Low Voltage VIH ON/OFF Input Logic High Voltage ISINK ON/OFF Input Leakage AAT4282A-12 TD(ON) Output Turn-On Delay Time TON Turn-On Rise Time TD(OFF) Output Turn-OFF Delay Time AAT4282A-22 TD(ON) Output Turn-On Delay Time Turn-On Rise Time TON TD(OFF) Output Turn-OFF Delay Time AAT4282A-3 TD(ON) Output Turn-On Delay Time TON Turn-On Rise Time TON Turn-On Rise Time TD(OFF) Output Turn-OFF Delay Time RPD Output Pull-Down Resistance During OFF VIN = 1.5V VIN = 5V VON/OFF = 5.5V 56 60 65 76 110 140 2800 Max Units 6.5 1.0 1.0 1.0 V μA μA μA 130 140 160 230 280 mΩ 1.0 ppm/°C V V μA 0.4 1.4 VIN = 5V, RLOAD =10Ω, TA =25°C VIN = 5V, RLOAD =10Ω, TA =25°C VIN = 5V, RLOAD =10Ω, TA =25°C 20 1000 4.0 40 1500 10 μs μs μs VIN = 5V, RLOAD =10Ω, TA =25°C VIN = 5V, RLOAD =10Ω, TA =25°C VIN = 5V, RLOAD =10Ω, TA =25°C 0.5 0.5 4.0 2 1.0 10 μs μs μs 20 100 1000 4.0 150 40 150 1500 10 250 μs μs μs μs Ω VIN = 5V, RLOAD =10Ω, TA =25°C VIN = 5V, RLOAD =10Ω, FAST = 5V, TA =25°C VIN = 5V, RLOAD =10Ω, FAST = 0V, TA =25°C VIN = 5V, RLOAD =10Ω, TA =25°C ON/OFF = Inactive, TA =25°C 1. The AAT4282A is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 2. Contact factory for other turn on and delay options. 4 www.analogictech.com 4282A.2008.02.1.2 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Typical Characteristics VIN = 5V, TA = 25°C unless otherwise noted. Quiescent Current vs. Temperature Quiescent Current vs. Input Voltage (No Load; Single Switch) (No Load; Single Switch) 12 Quiescent Current (µA) Quiescent Current (µA) 12 10 VIN = 5V 8 6 4 VIN = 3V 2 0 -40 10 8 6 4 2 0 -15 10 35 60 85 0 1 2 Temperature (°C) 3 4 5 6 Input Voltage (V) Typical ON/OFF Threshold vs. Input Voltage Off Supply Current vs. Temperature (No Load; EN = GND; VIN = 5V) 1.3 ON/OFF Threshold (V) Off Supply Current (µA) 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 -15 10 35 60 VIH 1.1 1 VIL 0.9 0.8 0.7 0.6 1.5 0 -40 1.2 85 2 2.5 On-Resistance vs. Temperature 4.5 5 5.5 220 90 On-Resistance (mΩ Ω) On-Resistance (mΩ Ω) 4 On-Resistance vs. Input Voltage 100 VIN = 3V 70 60 50 VIN = 5V 40 30 20 10 0 -40 3.5 Input Voltage (V) Temperature (°C) 80 3 -15 10 35 60 85 200 180 140 120 100 80 60 ISW = 100mA 40 1.5 Temperature (°C) 4282A.2008.02.1.2 ISW = 2A 160 2.5 3.5 4.5 5.5 6.5 Input Voltage (V) www.analogictech.com 5 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Typical Characteristics VIN = 5V, TA = 25ºC unless otherwise noted. Output Turn-On Delay Time Output Turn-On Delay Time (VINA/VENA = 5V; VINB/VENB = 3V; RLA = 10Ω Ω; RLB = 20Ω) VOUT 2 0 4 ENB 2 VOUT 0 6 Output Voltage Channel A (top) (V) Output Voltage Channel A (top) (V) ENA 4 ENA VOUT 2 0 6 ENB 4 VOUT 0 Time (50µs/div) Time (50µs/div) Output Turn-On Delay Time Output Turn-On Delay Time (VIN = 5V; RL = 10Ω Ω) 6 2 1 I IN 1 0.5 0 0 Voltage (top) (V) VOUT 3 4 3 EN 2 Output Turn-On (RL = 10Ω Ω) (VIN = 1.8V; RL = 10Ω Ω) 3.5 EN 3 2.5 4 VOUT (FAST = GND) 2 1 Voltage (V) Voltage (V) 5 0 VEN 2 1.5 1 VOUT (FAST = GND) 0.5 VOUT (FAST = VIN) 0 -0.5 Time (500µs/div) 6 0 Time (50µs/div) Output Turn-On 3 0.2 IIN 0 Time (50µs/div) 6 0.4 VOUT 1 Current (bottom) (A) 4 Current (bottom) (A) Voltage (top) (V) (VIN = 3V; RL = 20Ω Ω) EN 5 7 2 Output Voltage Channel B (bottom) (V) 4 Output Voltage Channel B (bottom) (V) 6 (VINA/VINB/VEN = 5V; RL = 10Ω Ω) VOUT (FAST = VIN) Time (200µs/div) www.analogictech.com 4282A.2008.02.1.2 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Typical Characteristics VIN = 5V, TA = 25ºC unless otherwise noted. Output Turn-Off Delay Time Output Turn-Off Delay Time 5 1 4 0.8 IIN 3 0.6 VOUT 2 0.4 1 0 0.2 0 EN 4 IIN 3 2 0.4 VOUT 1 0.2 0 Time (5µs/div) 0 EN Current (bottom) (A) 1.2 Voltage (top) (V) (VIN = 3V; RL = 20Ω Ω) 6 Current (bottom) (A) Voltage (top) (V) (VIN = 5V; RL = 10Ω Ω) Time (5µs/div) Output Turn-Off Delay Time Enable Voltage (top) (V) Output Voltage (bottom) (V) (VIN = 1.8V; RL = 10Ω Ω) 3.5 3 2.5 2 1.5 1 VOUT 0.5 0 -0.5 VEN Time (5µs/div) 4282A.2008.02.1.2 www.analogictech.com 7 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Functional Block Diagram OUTA INA Turn-On Slew Rate Control Level Shift * ON/OFF A FAST/ SLOW OUTB INB Turn-On Slew Rate Control Level Shift * ON/OFF B GND * AAT4282A-3 version only. Functional Description The AAT4282A is a family of flexible dual P-channel MOSFET power switches designed for high-side load switching applications. There are three versions of the AAT4282A with different turn-on and turn-off characteristics to choose from, depending upon the specific requirements of an application. The first version, the AAT4282A-1, has a moderate turn-on slew rate feature, which reduces in-rush current when the MOSFET is turned on. This function allows the load switch to be implemented with either a small input capacitor or no input capacitor at all. During turn-on slewing, the current ramps linearly until it reaches the level required for the output load condition. The proprietary turn-on current control method works by careful control and monitoring of the MOSFET gate voltage. When the device is switched ON, the gate voltage is quickly increased to the threshold level of the MOSFET. Once at this level, the current begins to slew as the gate voltage is slowly increased until the MOSFET becomes fully enhanced. Once it has 8 reached this point the gate is quickly increased to the full input voltage and the RDS(ON) is minimized. The second version, the AAT4282A-2, is a very fast switch intended for high-speed switching applications. This version has no turn-on slew rate control and no special output discharge features. The final switch version, the AAT4282A-3, has the addition of a minimized slew rate limited turn-on function and a shutdown output discharge circuit to rapidly turn off a load when the load switch is disabled through the ON/OFF pin. Using the FAST input pin on the AAT4282A-3, the device can be manually switched to a slower slew rate. All versions of the AAT4282A operate with input voltages ranging from 1.5V to 6.5V. All versions of this device have extremely low operating current, making them ideal for battery-powered applications. The ON/OFF control pin is TTL compatible and will also function with 2.5V to 5V logic systems, making the AAT4282A an ideal level-shifting load switch. www.analogictech.com 4282A.2008.02.1.2 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Applications Information Input Capacitor A 1μF or larger capacitor is typically recommended for CIN in most applications. A CIN capacitor is not required for basic operation; however, it is useful in preventing load transients from affecting upstream circuits. CIN should be located as close to the device VIN pin as practically possible. Ceramic, tantalum, or aluminum electrolytic capacitors may be selected for CIN. There is no specific capacitor equivalent series resistance (ESR) requirement for CIN. However, for higher current 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 slew operation, a 0.1μF capacitor or greater is required between VOUT and GND. Likewise, with the output capacitor, there is no specific capacitor ESR requirement. If desired, COUT may be increased without limit to accommodate any load transient condition without adversely affecting the slew rate. Enable Function The AAT4282A features an enable / disable function. This pin (ON) is active high and is compatible with TTL or CMOS logic. To assure the load switch will turn on, the ON control level must be greater than 1.4V. The load switch will go into shutdown mode when the voltage on the ON pin falls below 0.4V. When the load switch is in shutdown mode, the OUT pin is tri-stated, and quiescent current drops to leakage levels below 1μA. Reverse Output-to-Input Voltage Conditions and Protection Under normal operating conditions, a parasitic diode exists between the output and input of the load switch. The input voltage should always remain greater than the output load voltage, maintaining a reverse bias on the internal parasitic diode. Conditions where VOUT might exceed VIN should be avoided since this would forward bias the internal parasitic diode and allow excessive current flow into the VOUT pin, possibly damaging the load switch. In applications where there is a possibility of VOUT exceeding VIN for brief periods of time during normal operation, the use of a larger value CIN capacitor is highly recommended. A larger value of CIN with respect to COUT will effect a slower CIN decay rate during shutdown, thus preventing VOUT from exceeding VIN. In applications where there is a greater danger of VOUT exceeding VIN for extended periods of time, it is recommended to place a Schottky diode from VIN to VOUT (connecting the cathode to VIN and anode to VOUT). The Schottky diode forward voltage should be less than 0.45V. Thermal Considerations and High Output Current Applications The AAT4282A is designed to deliver a continuous output load current. The limiting characteristic for maximum safe operating output load current is package power dissipation. In order to obtain high operating currents, careful device layout and circuit operating conditions must be taken into account. The following discussions will assume the load switch is mounted on a printed circuit board utilizing the minimum recommended footprint as stated in the Printed Circuit Board Layout Recommendations section of this datasheet. At any given ambient temperature (TA), the maximum package power dissipation can be determined by the following equation: PD(MAX) = TJ(MAX) - TA θJA Constants for the AAT4282A are maximum junction temperature (TJ(MAX) = 125°C)1 and package thermal resistance (θJA = 70°C/W). Worst case conditions are calculated at the maximum operating temperature, TA = 85°C. Typical conditions are calculated under normal ambient conditions where TA = 25°C. At TA = 85°C, PD(MAX) = 571mW. At TA = 25°C, PD(MAX) = 1429mW. 1. The actual maximum junction temperature of AAT4282A is 150°C. However, good design practice is to derate the maximum die temperature to 125°C to prevent the possibility of over-temperature damage. 4282A.2008.02.1.2 www.analogictech.com 9 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch The maximum continuous output current for the AAT4282A is a function of the package power dissipation and the RDS of the MOSFET at TJ(MAX). The maximum RDS of the MOSFET at TJ(MAX) is calculated by increasing the maximum room temperature RDS by the RDS temperature coefficient. The temperature coefficient (TC) is 2800ppm/°C. Therefore, at 125°C: ⎛ x ⎞ ⎛ 576μs ⎞ % Peak Duty Cycle = ⎝ 100⎠ = ⎝ 4.61ms⎠ % Peak Duty Cycle = 12.5% RDS(MAX) = RDS(25°C) · (1 + TC · ΔT)Ω RDS(MAX) = 130mΩ · + 0.002800 · (125°C - 25°C)) RDS(MAX) = 166.4mΩ For maximum current, refer to the following equation: IOUT(MAX) < and has short 3A current peaks, as in a GSM application. The current peak occurs for 576μs out of a 4.61ms period. First, the current duty cycle is calculated: PD(MAX) RDS For example, if VIN = 5V, RDS(MAX) = 166.4mΩ, and TA = 25°C, IOUT(MAX) = 2.93A. If the output load current were to exceed 2.93A or if the ambient temperature were to increase, the internal die temperature would increase and the device would be damaged. Higher peak currents can be obtained with the AAT4282A. To accomplish this, the device thermal resistance must be reduced by increasing the heat sink area or by operating the load switch in a duty cycle manner. Duty cycles with peaks less than 2ms in duration can be considered using the method described in the High Peak Current Applications section of this datasheet. The load current is 100mA for 87.5% of the 4.61ms period and 3A for 12.5% of the period. Since the Electrical Characteristics do not report RDS(MAX) for 4V operation, it must be approximated by consulting the chart of RDS(ON) vs. VIN. The RDS reported for 5V at 100mA and 3A can be scaled by the ratio seen in the chart to derive the RDS for 4V VIN at 25°C: 130mΩ · 63mΩ/60mΩ = 136.5mΩ. De-rated for temperature: 136.5mΩ · (1 + 0.002800 · (125°C - 25°C)) = 174.7mΩ. For channel A, the power dissipation for a continuous 1A load is calculated as follows: PD(CHA) = IOUT2 · RDS = (1A)2 · 174.7mΩ = 174.7mW For channel B, the power dissipation for 100mA load is calculated as follows: PD(MAX) = IOUT2 · RDS PD(100mA) = (100mA)2 · 174.7mΩ PD(100mA) = 1.75mW PD(87.5%D/C) = %DC · PD(100mA) High Peak Output Current Applications PD(87.5%D/C) = 0.875 · 1.75mW Some applications require the load switch to operate at a continuous nominal current level with short duration, high-current peaks. Refer to the IDM specification in the Absolute Maximum Ratings table to ensure the AAT4282A’s maximum pulsed current rating is not exceeded. The duty cycle for both output current levels must be taken into account. To do so, first calculate the power dissipation at the nominal continuous current level, and then add the additional power dissipation due to the short duration, high-current peak scaled by the duty factor. For example, a 4V system using an AAT4282A which has channel A operates at a continuous 1A load current level, and channel B operates at a continuous 100mA load current level PD(87.5%D/C) = 1.53mW 10 The power dissipation for 100mA load at 87.5% duty cycle is 1.53mW. Now the power dissipation for the remaining 12.5% of the duty cycle at 3A is calculated: PD(MAX) = IOUT2 · RDS PD(3A) = (3A)2 · 174.7mΩ PD(3A) = 1572mW PD(12.5%D/C) = %DC · PD(3A) PD(12.5%D/C) = 0.125 · 1572mW PD(12.5%D/C) = 196.7mW www.analogictech.com 4282A.2008.02.1.2 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Finally, the total power dissipation for channels A and B is determined as follows: PD(total) = PD(CHA) + PD(100mA) + PD(3A) PD(total) = 174.7mW + 1.53mW + 196.7mW PD(total) = 373mW The maximum power dissipation for the AAT4282A operating at an ambient temperature of 85°C is 373mW. The device in this example will have a total power dissipation of 571mW. This is well within the thermal limits for safe operation of the device; in fact, at 85°C, the AAT4282A will handle a 3A pulse for up to 25% duty cycle. At lower ambient temperatures, the duty cycle can be further increased. Printed Circuit Board Layout Recommendations For proper thermal management, and to take advantage of the low RDS(ON) of the AAT4282A, a few circuit board layout rules should be followed: VIN and VOUT should be routed using wider than normal traces, and GND should be connected to a ground plane. For best performance, CIN and COUT should be placed close to the package pins. Evaluation Board Layout The AAT4282A evaluation layout follows the printed circuit board layout recommendations and can be used for good applications layout. Refer to Figures 1 through 2. Note: Board layout shown is not to scale. Figure 1: Evaluation Board Top Side Layout. Figure 2: Evaluation Board Bottom Side Layout. 4282A.2008.02.1.2 www.analogictech.com 11 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Ordering Information Device Option Package Marking1 Part Number (Tape and Reel)2 AAT4282A-3 FTDFN22-8 WKXYY AAT4282AIPS-3-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/about/quality.aspx. Package Information3 FTDFN22-8 0.400 ± 0.050 Detail "A" 2.000 ± 0.050 Index Area Bottom View 2.000 ± 0.050 Top View + 0.100 - 0.000 Pin 1 Identification 0.250 ± 0.050 Side View 0.450 ± 0.050 0.000 0.230 ± 0.050 0.750 ± 0.050 0.500 ± 0.050 Detail "A" All dimensions in millimeters. 1. XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD. 3. The leadless package family, which includes QFN, TQFN, DFN, FTDFN, TDFN and STDFN, has exposed copper (unplated) at the end of the lead terminals due to the manufacturing process. A solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection. 12 www.analogictech.com 4282A.2008.02.1.2 PRODUCT DATASHEET AAT4282A SmartSwitchTM Slew Rate Controlled Load Switch Advanced Analogic Technologies, Inc. 3230 Scott Boulevard, Santa Clara, CA 95054 Phone (408) 737-4600 Fax (408) 737-4611 © 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. Except as provided in AnalogicTech’s terms and conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. 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. AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. 4282A.2008.02.1.2 www.analogictech.com 13