AAT1143IJS-0.6-T1 AnalogicTech, AAT1143IJS-0.6-T1 Datasheet
AAT1143IJS-0.6-T1
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AAT1143IJS-0.6-T1 Summary of contents
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SwitchReg TM General Description The AAT1143 SwitchReg™ 1MHz step-down con- verter with an input voltage range of 2.7V to 5.5V and output as low as 0.6V. Its low supply current, small size, and high switching frequency make the ...
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SwitchReg SwitchReg TM TM Pin Descriptions Pin # Symbol Function 1 EN Enable pin. Feedback input pin. This pin is connected either directly to the converter output external resis- 2 OUT tive divider for an adjustable output. ...
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SwitchReg SwitchReg TM TM Absolute Maximum Ratings Symbol Description V Input Voltage GND GND LX V OUT to GND OUT GND EN T Operating Junction Temperature Range J T Maximum Soldering Temperature (at ...
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... EN 1. The AAT1143 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla- tion with statistical process controls. 2. For adjustable version with higher than 2.5V output, please consult your AnalogicTech representative 1MHz 400mA Step-Down Converter ...
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SwitchReg SwitchReg TM TM Typical Characteristics Efficiency vs. Load = 2.5V 4.7μ μ OUT 100 Output Current ...
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SwitchReg SwitchReg TM TM Typical Characteristics Switching Frequency vs. Temperature (V = 3.6V 1.5V 0.20 0.10 0.00 -0.10 -0.20 -40 - Temperature (° ° C) P-Channel R vs. Input Voltage DS(ON) 750 700 ...
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SwitchReg SwitchReg TM TM Typical Characteristics Load Transient Response = 1.8V 4.7μ μ F) (30mA to 300mA 3.6V OUT 2.0 1.9 1.8 300mA 1.7 1.6 30mA 1.5 1.4 1.3 1.2 Time (25μs/div) Line Regulation ...
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SwitchReg TM Functional Block Diagram Voltage Reference INPUT EN Note: For adjustable version, the internal feedback divider is omitted and the FB pin is tied directly to the internal error amplifier. Functional Description The AAT1143 is a high performance 400mA ...
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SwitchReg TM V Figure 1: Enhanced Transient Response Schematic. Control Loop The AAT1143 is a peak current mode step-down con- verter. The current through the P-channel MOSFET (high side) is sensed for current loop control, as well as short circuit ...
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SwitchReg TM Applications Information Inductor Selection The step-down converter uses peak current mode con- trol with slope compensation to maintain stability for duty cycles greater than 50%. The output inductor value must be selected so the inductor current down slope ...
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SwitchReg TM ⎛ ⎞ 1.5 V ⋅ OUT OUT ⋅ k ⋅ F ⎝ ⎠ 0.4A ⋅ 0.4 ⋅ 1.25MHz ⎛ ⎞ · ...
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SwitchReg TM Figure 2: AAT1143 Evaluation Board Top Side. Adjustable Output Resistor Selection For applications requiring an adjustable output voltage, the 0.6V version can be externally programmed. Resistors R1 and R2 of Figure 5 program the output to regulate at ...
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SwitchReg SwitchReg 59kΩ V (V) R1 (kΩ) OUT 0.8 19.6 0.9 29.4 1.0 39.2 1.1 49.9 1.2 59.0 1.3 68.1 1.4 78.7 1.5 88.7 1.8 118 1.85 124 2.0 137 2.5 187 Table 2: Adjustable Resistor ...
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SwitchReg TM For the condition where the step-down converter is in dropout at 100% duty cycle, the total device dissipation reduces to · TOTAL O DS(ON)H Since R , quiescent current, and switching ...
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SwitchReg SwitchReg TM TM Step-Down Converter Design Example Specifications V = 1.8V @ 400mA (adjustable using 0.6V version), Pulsed Load Δ 2.7V to 4.2V (3.6V nominal 1.0MHz 85°C AMB 1.8V Output ...
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SwitchReg SwitchReg TM TM AAT1143 Losses 2 I · (R · · DS(ON)H O DS(ON TOTAL · F · · ...
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SwitchReg SwitchReg (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 ...
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... PRODUCT DATASHEET PRODUCT DATASHEET AAT1143 AAT1143 Part Number (Tape and Reel) AAT1143IJS-0.6-T1 4 AAT1143IJS-1.2-T1 4 AAT1143IJS-1.5-T1 4 AAT1143IJS-1.6-T1 4 AAT1143IJS-1.8-T1 4 AAT1143IJS-2.5-T1 4 AAT1143IJS-3 ...
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... 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 specifi cations 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 fi ...