AAT2500IWP-AT-T1 AnalogicTech, AAT2500IWP-AT-T1 Datasheet
AAT2500IWP-AT-T1
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AAT2500IWP-AT-T1 Summary of contents
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... General Description The AAT2500 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product fam- ily low dropout (LDO) linear regulator and a step-down converter with an input voltage range of 2.7V to 5.5V, making it ideal for applications with single lithium-ion/polymer batteries. The LDO has an independent input and is capable of delivering up to 300mA ...
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Pin Descriptions Pin # Symbol Function 1 PGND Step-down converter power ground return pin. Connect to the output and input capaci- tor return. See section on PCB layout guidelines and evaluation board layout diagram Power switching node. Output ...
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Absolute Maximum Ratings Symbol Description Input Voltages to GND P LDO GND GND GND EN T Operating Junction Temperature Range J T Maximum Soldering Temperature (at ...
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Electrical Characteristics Symbol Description LDO OUT(NOM) LDO 1mA 2.2µF, C OUT IN V Output Voltage Tolerance OUT V Input Voltage IN V Dropout Voltage ∆V / OUT Line Regulation ...
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... The AAT2500 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. For adjustable version with higher than 2.5V output, please consult your AnalogicTech representative. 2500.2005.08.1.9 1MHz Step-Down Converter/LDO Regulator ...
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Typical Characteristics Unless otherwise noted 5V LDO Dropout Voltage vs. Temperature (EN = GND; ENLDO = V 540 I = 300mA 480 L 420 360 300 I = 100mA 150mA L 240 180 ...
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Typical Characteristics Unless otherwise noted 5V LDO Turn-Off Response Time (C = 10nF GND; ENLDO = V BYP V (5V/div) ENLDO V (1V/div) OUT 50µs/div LDO Line Transient Response (C = 10nF ...
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Typical Characteristics Unless otherwise noted 5V Over-Current Protection (EN = GND; ENLDO = V 1200 1000 800 600 400 200 0 -200 Time (50ms/div) Step-Down Converter Efficiency vs. Load (V = 2.5V ...
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Typical Characteristics Unless otherwise noted 5V Step-Down Converter Frequency vs. Input Voltage (V = 1.8V ENLDO = GND) OUT IN 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 2.7 3.1 3.5 3.9 4.3 ...
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Typical Characteristics Unless otherwise noted 5V Step-Down Converter Load Transient Response (30mA - 300mA 3.6V 10µ µ ENLDO = GND) IN 2.0 1.9 1.8 300mA ...
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Typical Characteristics Unless otherwise noted 5V Step-Down Converter Output Ripple (V = 3.6V 1.8V; 400mA; IN OUT ENLDO = GND -20 -40 -60 -80 -100 -120 ...
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Functional Block Diagram FB See Note Voltage Reference EN SGND VLDO BYP Fast Start ENLDO Control Note: Internal resistor divider included for ≥1.2V versions. For low voltage versions, the feedback pin is tied directly to the error amplifier input. 12 ...
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Functional Description The AAT2500 is a high performance power man- agement IC comprised of a buck converter and a linear regulator. The buck converter is a high effi- ciency converter capable of delivering up to 400mA. Designed to operate at ...
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10µF VP VCC 5 10 VLDO ENLDO LX V OUTLDO 6 11 OUT BYP SGND 8 1 GND PGND C4 4.7µ AAT2500 10nF Figure 1: AAT2500 Fixed ...
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low output current applications, OUT where output load is less than 10mA, the minimum value for C can be as ...
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Manufacturer's specifications list both the inductor DC current rating, which is a thermal limitation, and the peak current rating, which is determined by the saturation characteristics. The inductor should not show any appreciable saturation under normal load conditions. Some inductors ...
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Figure 3: AAT2500 Evaluation Board Top Side. In applications where the input power source lead inductance cannot be reduced to a level that does not affect the converter performance, a high ESR tantalum or aluminum electrolytic should be placed in ...
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R2 is 59kΩ. Although a larger value will further reduce quiescent current, it will also increase the impedance of the feedback node, making it more sensitive to external noise and interference. Table 2 summarizes the resistor values for various output ...
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Thermal Calculations There are three types of losses associated with the AAT2500 step-down converter: switching losses, conduction losses, and quiescent current losses. Conduction losses are associated with the R characteristics of the power output switching devices. Switching losses are dominated ...
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Step-Down Converter Design Example Specifications = 1.8V @ 400mA (adjustable using 0.6V version), Pulsed Load ∆I V OBUCK V = 3.3V @ 300mA OLDO V = 2.7V to 4.2V (3.6V nominal 1.0MHz 85°C AMB ...
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Input Capacitor Input Ripple V = 25mV ⎛ ⎞ ESR · 4 · F ⎝ ⎠ OBUCK I OBUCK 0.2Arms RMS ...
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V (V) OUT Adjustable Version (0.6V device) 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.8 1.85 2.0 2.5 V (V) OUT Fixed Version 0.6-3.3V Table 3: Evaluation Board Component Values. Manufacturer Part Number Sumida CDRH3D16-4R7 Sumida CDRH3D16-100 MuRata LQH32CN4R7M23 ...
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Manufacturer Part Number MuRata GRM21BR61A475KA73L MuRata GRM18BR60J475KE19D MuRata GRM21BR60J106KE19 MuRata GRM21BR60J226ME39 2500.2005.08.1.9 1MHz Step-Down Converter/LDO Regulator Value 4.7µF 4.7µF 10µF 22µF Table 5: Surface Mount Capacitors. AAT2500 Voltage Temp. Co. Case 10V X5R 0805 6.3V X5R 0603 6.3V X5R 0805 ...
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... XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD. 24 1MHz Step-Down Converter/LDO Regulator Marking 1 Part Number (Tape and Reel) LDO 3.3V NZXYY 3.0V NYXYY 2.8V OAXYY 2.7V ORXYY 2.5V OOXYY 1.8V ONXYY 1.5V OMXYY 3.0V OWXYY 2.7V PFXYY AAT2500 2 AAT2500IWP-AW-T1 AAT2500IWP-AT-T1 AAT2500IWP-AQ-T1 AAT2500IWP-AP-T1 AAT2500IWP-AN-T1 AAT2500IWP-AI-T1 AAT2500IWP-AG-T1 AAT2500IWP-ET-T1 AAT2500IWP-IP-T1 2500.2005.08.1.9 ...
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Package Information Index Area (D/2 x E/2) 3.00 ± 0.05 Detail "A" Top View 7.5° ± 7.5° 0.05 ± 0.05 Side View 2500.2005.08.1.9 1MHz Step-Down Converter/LDO Regulator TDFN33-12 Detail "B" 1.70 ± 0.05 Bottom View Pin 1 Indicator (optional) Option ...
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... 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’ ...