AAT1151IKS-1.8-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT1151IKS-1.8-T1 Datasheet
AAT1151IKS-1.8-T1
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AAT1151IKS-1.8-T1 Summary of contents
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General Description The AAT1151 SwitchReg™ member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. The step-down switching converter is ideal for applications where high effi- ciency is required over the full range of output load conditions. The ...
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Pin Descriptions Pin # Symbol MSOP-8 QFN33- SGND VCC 5 10, 11 13, 14 PGND ...
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Absolute Maximum Ratings Symbol Description GND GND GND GND EN T Operating Junction Temperature Range J V ESD ...
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Electrical Characteristics 5V -40°C to 85°C, unless otherwise noted. Typical values are Symbol Description V Input Voltage Range IN V Output Voltage Tolerance OUT V Under-Voltage ...
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Typical Characteristics No Load Supply Current vs. Input Voltage 300 T = 85°C 250 200 150 T = -40° 25°C 100 50 0 2.5 3 3.5 4 Input Voltage (V) Output Voltage vs. Temperature 1.794 1.792 1.79 1.788 ...
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Typical Characteristics Output Ripple 1.8V, 50mA, V Circuit of Figure -10 -20 -30 -40 -50 -60 Time (2µ µ s/div) Output Ripple 1.8V, 0.7A, V Circuit of Figure -10 -20 -30 -40 ...
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Typical Characteristics Output Ripple Circuit of Figure 2. 4. Output Current (mA) 1151.2005.11.1.4 850kHz 700mA Synchronous Buck DC/DC Converter V = 3.6V IN 100 1000 AAT1151 ...
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Functional Block Diagram 1.0V REF FB SGND Operation Control Loop The AAT1151 is a peak current mode buck con- verter. The inner, wide bandwidth loop controls the peak current of the output inductor. The output inductor current is sensed through ...
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U1 AAT1151-QFN 2.7V-4. 100 Vcc 100k C1 7 10µ gnd 0.1µ n/c 100k 5 gnd C1 Murata 10µF 6.3V X5R GRM42-6X5R106K6.3 C3-C4 MuRata 22µF 6.3V GRM21BR60J226ME39L ...
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Input Capacitor The primary function of the input capacitor is to pro- vide a low impedance loop for the edges of pulsed current drawn by the AAT1151. A low ESR/ESL ceramic capacitor is ideal for this function. To mini- mize ...
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Figure 2: MSOP Evaluation Board Top Layer. Figure 4: QFN Evaluation Board Top Side. 45 R4=10kΩ 1.5 2 2.5 3 3.5 Output Voltage (V) Figure 6: R3 vs. V for ...
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Thermal Calculations There are two types of losses associated with the AAT1151 output switching MOSFET: switching loss- es and conduction losses. Conduction losses are associated with the R characteristics of the DS(ON) output switching device. At the full load condition, ...
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Design Example Specifications I 0.7A OUT I 40% of Full Load at Max V RIPPLE V 1.5V OUT V 2.7V to 4.2V (3.6V nominal 850kHz S T 85°C AMB Maximum Input Capacitor Ripple: ⎛ ⎞ ...
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AAT1151 Dissipation · (R · DSON(H) O DSON( TOTAL (0.7A) · (0.2Ω · 1.5V + 0.187Ω · (4.2V - 1.5V)) = 4.2V + Θ · P ...
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... JHXYY JHXYY MSOP-8 JIXYY JIXYY MSOP-8 JJXYY JJXYY MSOP-8 NKXYY MSOP-8 1.95 BSC 0.254 BSC 3.00 ± 0.10 10° ± 5° 0.30 ± 0.08 0.65 BSC AAT1151 Part Number (Tape and Reel) AAT1151IKS-1.0-T1 AAT1151IVN-1.0-T1 AAT1151IKS-1.8-T1 AAT1151IVN-1.8-T1 AAT1151IKS-2.5-T1 AAT1151IVN-2.5-T1 AAT1151IKS-3.3-T1 4° ± 4° 0.60 ± 0.20 0.155 ± 0.075 3 15 ...
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Pin 1 Dot By Marking 3.000 ± 0.05 Top View 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 ...