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MP2158GQH Datasheet(PDF) 7 Page - Monolithic Power Systems |
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MP2158GQH Datasheet(HTML) 7 Page - Monolithic Power Systems |
7 / 13 page MP2158 – 1A, 6V, 1.5MHz SYNCHRONOUS STEP-DOWN SWITCHER MP2158 Rev. 1.0 www.MonolithicPower.com 7 10/10/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2012 MPS. All Rights Reserved. PIN FUNCTIONS Pin # Name Description 8 PG Power Good Indicator. The output of this pin is an open drain with internal pull up resistor to IN. PGOOD is pulled up to IN when the FB voltage is within 10% of the regulation level, if FB voltage is out of that regulation range, it is LOW. 7 VIN Supply Voltage. The MP2158 operates from a +2.5V to +6V unregulated input. C1 is needed to prevent large voltage spikes from appearing at the input. 6 SW Switch Output 5 PGND Power ground 4 OUT Input sense pin for output voltage 3 AGND Analogy ground for internal control circuit 2 FB Feedback pin. An external resistor divider from the output to GND, tapped to the FB pin, sets the output voltage. 1 EN On/Off Control |
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