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CM3018-25CS Datasheet(PDF) 1 Page - California Micro Devices Corp |
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CM3018-25CS Datasheet(HTML) 1 Page - California Micro Devices Corp |
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1 / 11 page  © 2004 California Micro Devices Corp. All rights reserved. 07/29/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 1 CM3018 PRELIMINARY Micropower, 150mA Low Noise CMOS Regulator with Fast Response Features • Available with 1.5V, 1.8V, 2.5V, 2.6V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V or 3.3V outputs •Fast (60 µs) V OUT response when enabled • Ultra low noise (35 µV rms typ.) • Delivers up to 150mA output current • Very low dropout (150mV at 150mA) • Low quiescent operating current (110 µA) • Stable with low-ESR ceramic capacitors • “Zero” disable mode current consumption • Thermal overload protection • Foldback overload current protection • -40°C to +85°C temperature operation • Available in a 5-pin SOT23 and 5-bump Chip Scale Packages (CSP) • Lead-free versions available Applications • Wireless handsets, PDAs, MP3 players, digital cameras • PCs and notebooks • Graphics cards, set-top boxes • Compact Flash memory cards • Battery-powered devices •PC cards Product Description The CM3018 is a very low dropout, low noise regulator that delivers up to 150mA of load current at a fixed out- put voltage. A dedicated control input (EN, Active High) provides power-up sequencing flexibility. When this input is taken low, the regulator is disabled. In this state, the supply current will drop to near zero. An internal dis- charge MOSFET resistance (300 Ω) will force the out- put to ground whenever the device is disabled. An optional bypass pin is provided for further improve- ment of noise performance and to maximize the power supply ripple rejection. The CM3018 is fully protected, offering both overload current limiting and high temperature thermal shut- down. The CM3018 is available in a tiny 5 lead SOT-23 pack- age or a 5-bump CSP and is ideal for space critical applications. The CSP version of the CM3018 incorpo- rates OptiGuardTM technology to provide increased reli- ability at assembly. All versions of the CM3018 are now available with optional lead-free finishing. Simplified Electrical Schematic Typical Application Circuit VIN EN VOUT GND 1µF 1µF + - OUT + + BYP 10nF COUT CIN GND CM3018 CBYP EN + VIN GND VOUT - BYP VREF 1x |
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