LMR12010 - National Semiconductor

LMR12010 1A Step-Down Voltage Regulator

Pin 1 2 Name BOOST GND Function Boost voltage that drives the internal NMOS control switch. A bootstrap capacitor is connected between the BOOST and SW pins. Signal and Power ground pin. Place the bottom resistor of the feedback network as close as possible to this pin for accurate regulation. Feedback pin. Connect FB to the external resistor divider to set.

Features

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■ Input voltage range of 3V to 20V Output voltage range of 0.8V to 17V Output current up to 1A 1.6MHz (LMR12010X) and 3 MHz (LMR12010Y) switching frequencies Low shutdown Iq, 30 nA typical Internal soft-start Internally compensated Current-Mode PWM operation Thermal shutdown Thin SOT23-6 package (2.97 x 1.65 x 1mm) Fully enabled for WEBENCH® Power Designer Efficiency vs Load Current - "X" VOUT = 5V Performance Benefits
■ Extremely easy to use
■ Tiny overall solution reduces system cost 30166536 Efficiency vs Load Current - "Y" VOUT = 5V 30166534 WEBENCH® is a registere.