AMS1073 AMS [Advanced Monolithic Systems Ltd], AMS1073 Datasheet

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... DESCRIPTION The AMS1073 is a monolithic step-down switch mode converter with a built-in power MOSFET. It achieves 1.2A peak output current over a wide input supply range with excellent load and line regulation. Current mode provides fast transient response and eases loop stabilization. Fault condition protection includes ...

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... Internal thermal shutdown circuitry (3) protects the device from permanent damage. 3) The device function is not guaranteed outside of the recommended operating conditions. 4) Measured on JESD51-7, 4-layer PCB.. 2 http://www.ams-semitech.com AMS1073 Free Air Temperature ( -40°C to +85°C (4) θ θ JA ...

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... On/Off Control Input. Pull EN above 1.2V to turn the device on. For automatic enable, connect 100kΩ resistor between this pin and Vin pin. Supply Voltage.The AMS1073 operates from a + 4.5V to +24V unregulated input.C1 is needed prevent large voltage spikes from appearing at the input. ...

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... Functional Block Diagram IN 5 RAMP GENERATOR EN OSCILLATOR 4 REGULATOR 1.4MHz/460KHz REFERENCE FB 3 GND 2 Advanced Monolithic Systems x20 REGULATOR CURRENT 1pF LIMIT COMPARATOR 27pF + + PWM ERROR COMPARATOR AMPLIFIER 4 http://www.ams-semitech.com AMS1073 CURRENT SENSE AMPLIFIER -- + D 1 BST M1 Q DRIVER 6 SW ...

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... Output at 1A Step-Down Converter Resistor Selection for Common Output Voltages V (V) R1 (kΩ) OUT 1.8 80.6 (1%) 2.5 49.9 (1%) 3.3 49.9 (1%) 5 49.9 (1%) Advanced Monolithic Systems AMS1073 GND U1 R2 (kΩ) 64.9 (1%) 23.7 (1%) 16.2 (1%) 9.53 (1%) 5 http://www.ams-semitech.com AMS1073 D2 C2 1N4148 L1 10nF (Optional) 4.7uH C3 22uF R1 R2 49.9K 16.2K Vout=0.81X(1+R1/R2) V OUT 3.3V ...

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... SOT23-6 MILLIMETER SYMBOL MIN 0.04 A2 1.00 A3 0.55 D 2.72 E 2.60 E1 1.40 e 0.95BSC e1 1.90BSC L 0.30 θ Advanced Monolithic Systems http://www.ams-semitech.com AMS1073 NOR MAX - 1.35 - 0.15 1.10 1.20 0.65 0.75 2.92 3.12 2.80 3.0 1.60 1.80 - 0.60 - 8° ...