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CM3015-25MA Datasheet(PDF) 2 Page - California Micro Devices Corp |
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CM3015-25MA Datasheet(HTML) 2 Page - California Micro Devices Corp |
2 / 14 page © 2004 California Micro Devices Corp. All rights reserved. 2 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 09/14/04 CM3015 PRELIMINARY Note 1: Tantalum, electrolytic or low cost ceramic capacitors may be used. PIN DESCRIPTIONS SOT23-5 PIN(S) SOT23-6 PIN(S) MSOP-8 PIN(S) NAME DESCRIPTION 11 2 VIN VIN is the input power source for the regulator. If this input is within a few inches of the main supply filter, a capacitor may not be necessary. Other- wise, an input filter capacitor of about 1-10 µF will ensure adequate filter- ing. 2 2 5-8 GND The negative reference for all voltages. 3 3 1 EN Enable input. When this input is taken low (< 0.4V), the regulator is dis- abled. In this state, the supply current will drop to near zero. 4 4 4 BYP Reference Bypass Pin. Connect to an external capacitor for noise reduc- tion. A 10nF-100nF size ceramic capacitor is recommended. − 5 4 VSENSE This pin sets VOUT with an external divider: VOUT = VSENSE(1+ R1/R2). R1 is the upper resistor, like the internal divider shown on the block dia- gram on page 1. 56 3 VOUT VOUT is the output voltage used to power the load. An output capacitor may not be required for stability, but its use can improve transient response, noise performance and power supply ripple rejection for fre- quencies over ~100kHz (see note 1). VIN GND EN VOUT SENSE BYP 1 2 6 5 3 4 TOP VIEW PACKAGE / PINOUT DIAGRAM (Note 1) Notes: VIN GND EN VOUT BYP 1 2 5 3 4 TOP VIEW 1 2 3 4 8 7 6 5 EN VIN VOUT BYP GND GND GND GND TOP VIEW 5-PIN SOT23 CM3015-12ST,-15ST, -18ST,-25ST,-30ST,-33ST 6-PIN SOT23 CM3015-00ST 8-PIN MSOP CM3015-12MA,-15MA, -18MA,-25MA,-30MA,-33MA 8-PIN MSOP CM3015-00MA 1 2 3 4 8 7 6 5 EN VIN VOUT VSENSE GND GND GND GND TOP VIEW 2) See Ordering Information section for part marking details. 1) These drawings are not to scale. |
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