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| IMP2014/1 5, IMP2 1 85 POWER MANAGEMENT 60mA/110mA/160mA Super Low Dropout CMOS Regulators with Battery Life Extending Shutdown Mode The IMP2014, IMP2015 and IMP2185 high performance CMOS low dropout voltage regulators offer superior dropout voltage performance and load regulation characteristics as compared to the pin compatible TC1014/1015/1085 devices offered by TelCom Semiconductor. Dropout voltage is over 50% lower. In addition, no load supply current is typically 38A and increases to just 0.6% of full load current. Power supply current, load regulation and power supply/ripple rejection have been optimized. Power supply rejection is a high 53dB at 1kHz. With an external bypass capacitor, PSRR increases to 63dB. Load regulation is typically 0.32%. A digitally controlled shutdown mode extends system battery life by reducing quiescent current to 0.2A maximum. The shutdown mode can be initiated by a system microcontroller. The regulators were designed with ease of use and stability in mind. Stability is guaranteed for 0.47F and greater load capacitors with an ESR between 0 and 5. Ceramic or tantalum capacitors can be used. Three devices with different guaranteed output current specifications are available: IMP2014 (60mA), IMP2015 (110mA) and IMP2185 (160mA). Each device has output voltage options of 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V, 4.0V and 5.0V. Key Features x Pin compatible with TelCom TC1014/1015/1185 x Lower dropout voltage for long battery life - IMP2014: 56mV vs. TelCom TC1014 120mV - IMP2015: 136mV vs. TelCom TC1015 250mV - IMP2185: 215mV vs. TelCom TC1085 400mV x Power Saving Shutdown Mode - 0.2A shutdown current x Superior Load Regulation - 0.32% x Long Battery Life - 38A no load ground current x Accurate Output Voltage - 2.5% over temperature x Low Drift Output: 40ppm/C x Guaranteed Minimum Output Current - IMP2014: 60mA - IMP2015: 110mA - IMP2185: 160mA x Over-current and Over-temperature Protection x Reference Bypass Input for Low-noise and Improved PSSR x Compact SOT-23A-5 Package Applications x x x x x Pagers Cellular/GSM/PHS Phones Instrumentation Wireless Terminals Battery Powered Systems Typical Application 1 5 1F + 1F VIN VOUT VOUT IMP2014 IMP2015 IMP2185 BYPASS 4 SHDN GND 2 Shutdown* Control 3 0.01F/3.3F (optional) * Tie to VIN if unused. 2014/15_02.eps (c) 1999 IMP, Inc. 408-432-9100/www.impweb.com 1 IMP2014/1 5, IMP2 1 85 Pin Configuration SOT-23A VIN GND SHDN 1 2 3 IMP2014/15 IMP2185 4 BYPASS 5 VOUT 2014/15_01.eps Pin Descriptions Pin Number 1 2 3 4 5 Name VIN GND SHDN BYPASS VOUT Function Unregulated supply input. Ground terminal. Shutdown control input. A shutdown mode is entered when SHDN is a logic LOW. During shutdown the output voltage falls to 0V and quiescent current drops to 2.0A. Reference bypass input. A capacitor connected from the BYPASS pin to ground reduces the noise present on the internal reference and enhances PSRR Output voltage 2014/15_t01.eps Ordering Information Output Voltage (V) Output Current (mA) Shutdown Pin OKAY Adjust Flag Pin Output Reference Bypass Pin Package Marking A M M M M M M M M O O O O O O O O X X X X X X X X Part Number* IMP2014-2.5JUK/T IMP2014-2.7JUK/T IMP2014-2.85JUK/T IMP2014-3.0JUK/T IMP2014-3.3JUK/T IMP2014-3.6JUK/T IMP2014-4.0JUK/T IMP2014-5.0JUK/T IMP2015-2.5JUK/T IMP2015-2.7JUK/T IMP2015-2.85JUK/T IMP2015-3.0JUK/T IMP2015-3.3JUK/T IMP2015-3.6JUK/T IMP2015-4.0JUK/T IMP2015-5.0JUK/T IMP2185-2.5JUK/T IMP2185-2.7JUK/T IMP2185-2.85JUK/T IMP2185-3.0JUK/T IMP2185-3.3JUK/T IMP2185-3.6JUK/T IMP2185-4.0JUK/T IMP2185-5.0JUK/T xx = Date Code Package B A B C D E F G H A B C D E F G H A B C D E F G H C x x x x x x x x x x x x x x x x x x x x x x x x D x x x x x x x x x x x x x x x x x x x x x x x x SOT23A-5 2.5 50 SOT23A-5 2.7 50 SOT23A-5 2.85 50 SOT23A-5 3.0 50 SOT23A-5 3.3 50 SOT23A-5 3.6 50 SOT23A-5 4.0 50 SOT23A-5 5.0 50 SOT23A-5 2.5 100 SOT23A-5 2.7 100 SOT23A-5 2.85 100 SOT23A-5 3.0 100 SOT23A-5 3.3 100 SOT23A-5 3.6 100 SOT23A-5 4.0 100 SOT23A-5 5.0 100 SOT23A-5 2.5 150 SOT23A-5 2.7 150 SOT23A-5 2.85 150 SOT23A-5 3.0 150 SOT23A-5 3.3 150 SOT23A-5 3.6 150 SOT23A-5 4.0 150 SOT23A-5 5.0 150 * /T indicates Tape and Reel 408-432-9100/www.impweb.com 2014/15_t03.eps 2 (c) 1999 IMP, Inc. IMP2014/1 5, IMP2 1 85 Absolute Maximum Ratings Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 7V Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . - 0.3V to VIN + 0.3V Maximum Voltage on Any Pin . . . . . . . . . . . . - 0.3V to (VIN + 0.3V) Operating Junction Temperature Range . . . - 40C < TJ < 125C These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground. Storage Temperature . . . . . . . . . . . . . . . . . . . - 65C to 150C Power Dissipation . . . . . . . . . . . . . . . . . . . . . Internally limited Note: TJ = Junction Temperature, TA = Ambient Temperature Electrical Characteristics VIN = VOUT +1V, IL = 100A, C L = 1F, SHDN > VIH , TA = 25C, unless otherwise noted. Bold/blue specifications apply for junction temperature range -40C < TJ < 125C. Parameter Input Voltage Range Symbol Conditions VIN 0 C < TJ < 125 C - 40 C < TJ < 125 C Min Typ Max 6.50 6.50 Units V Maximum Output Current IOMAX IMP2014 IMP2015 IMP2185 60 110 160 VR - 2.5% VR 0.5% 1 15 37 90 143 38 68 158 341 631 921 0.2 40 0.04 23 56 136 215 61 108 252 545 1000 1500 2 VR + 2.5% mA Fixed Output Voltage Dropout Voltage (Note 2) VOUT Note 1 V mV VIN - VO IL = 100A IL = 20mA IL = 50mA IL = 100mA (IMP2015, IMP2185) IL = 150mA (IMP2185) Quiescent Current (Ground Current) No load IL = 5mA IL = 20mA IL = 50mA IL = 100mA (IMP2015) IL = 150mA (IMP2185) A Shutdown Supply Current Output Temperature Coefficient Thermal Regulation Line Regulation IINSD SHDN = 0V TJ 85 C A ppm/ C %/W %/V 2014/15_t02a.eps VR + 1V VIN 6V 0.0032 Notes: 1. VR is the regulated output voltage: 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V, 4.0V or 5.0V. 2. Dropout Voltage is defined as the difference between IN and OUT when VR drops 2% below its nominal value. 3. Specifications which would otherwise be affected by self-heating of the die are tested at a constant die temperature by using low duty cycle pulse testing. 3. PSRR guaranteed by design.pulse testing. (c) 1999 IMP, Inc. 408-432-9100/www.impweb.com 3 IMP2014/1 5, IMP2 1 85 Electrical Characteristics VIN = VOUT +1V, IL = 100A, C L = 1F, SHDN > VIH , TA = 25C, unless otherwise noted. Bold/blue specifications apply for junction temperature range of -40C < TJ < 125C. Parameter Load Regulation: IMP2014 IMP2015 IMP2185 Thermal Shutdown Die Temperature Thermal Shutdown Hysteresis Ripple Rejection Symbol Conditions IL = 100A to 50mA IL = 100A to 100mA IL = 100A to 150mA Min Typ 0.32 0.32 0.32 150 12 Max 2.0 2.0 3.0 Units % % % C C dB PSRR VIN = 4.0V 0.25V Freq. = 1kHz CO = 3.3F ceramic Freq. = 10kHz No bypass capacitor Freq. = 900kHz VIN 3.5V CO = 3.3F ceramic CBYPASS = 0.01F Freq. = 1kHz Freq. = 10kHz Freq. = 900kHz 53 36.1 28.2 63.4 45.3 31.3 280 dB Output Noise 300Hz to 50kHz No bypass capacitor IL = 50mA (IMP2014) IL = 100mA 300Hz to 50kHz CBYPASS = 0.01F IL = 50mA (IMP2014) IL = 100mA Vrms 60 Vrms SHDN Input HIGH Threshold SHDN Input LOW Threshold Reverse Current into VOUT 2.5V VIN 6.5V 2.5V VIN 6.5V V(IN) < V(OUT) SHDN = HIGH V(IN) < V(OUT) SHDN = LOW 45 15 7.8 4.6 350 800 % of VIN % of VIN mA A mA 2014/15_t02b.eps Output Current Limit Notes: 1. VR is the regulated output voltage: 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V, 4.0V or 5.0V. 2. Dropout Voltage is defined as the difference between IN and OUT when VR drops 2% below its nominal value. 3. Specifications which would otherwise be affected by self-heating of the die are tested at a constant die temperature by using low duty cycle pulse testing. 4. PSRR guaranteed by design pulse testing. 4 408-432-9100/www.impweb.com (c) 1999 IMP, Inc. IMP2014/1 5, IMP2 1 85 Application Information The IMP2014, IMP2015 and IMP2185 have been designed to offer exceptionally low dropout voltage, superior load regulation and minimum quiescent power. Reference Voltage Bypass Capacitor For low noise operation a 0.01F or larger capacitor can be connected from the BYPASS pin to ground. For maximum power supply rejection/line rejection, a 3.3F value is suggested. The IMP2014/2015/2185 were designed so that line regulation and ripple rejection would be maximized. This was accomplished by powering the internal bandgap reference from an internal regulated source. This "pre-regulation" greatly improves power supply regulation for input voltages greater than that of the internal voltage regulator, 3.5V. Shutdown Mode A battery-life-extending mode is available. Through the active LOW shutdown pin, SHDN, the regulator can be enabled or turned off. The regulator is shutdown (turned off) when SHDN is LOW and enabled (turned on) when SHDN is HIGH. The shutdown signal can be supplied from a CMOS gate or from an I/O port of a microcontroller. During shutdown, the output voltage falls to 0V and the supply current is typically only 200nA. If the shutdown mode is not needed, SHDN should be connected directly to the regulator input voltage pin. Thermal Shutdown An on-chip thermal protection circuit shuts the LDO regulator off when the die temperature exceeds 150C. There is a built in 12C hysteresis. The regulator will remain off until the die temperature drops to approximately to 138C. Output Capacitor The IMP2014, IMP2015 and IMP2185 were designed for stable operation with a wide range of capacitor values and type. The output capacitor should be above 0.47F. A 1F value is recommended. Ceramic or tantalum capacitors are suitable with an ESR between 0 and 5. (c) 1999 IMP, Inc. 408-432-9100/www.impweb.com 5 IMP2014/1 5, IMP2 1 85 Package Dimensions Plastic SOT-23A (5-Pin) Inches Min A A1 A2 b b1 c c1 D E E1 e Millimeters Max Min 0.95 0.05 0.90 0.30 -- -- 1.15 -- Max 1.45 0.15 1.30 0.50 0.45 0.20 0.16 3.00 3.00 1.70 Plastic SOT-23 (5-Pin)* 0.30 0.08 D t a o T a e1 L L1 N o C 0.08 2.80 2.60 1.50 e m 0.40 -- 0.10 -- 2.90 1.60 1.90 BSC 1.90 BSC 0.45 0.60 REF 5 0.35 0.55 0 8 * JEDEC Drawing MO-178 Add /T to Part Number for Tape and Reel. 2014/15_t04.eps IMP, Inc. Corporate Headquarters 2830 N. First Street San Jose, CA 95134-2071 Tel: 408-432-9100 Tel: 800-438-3722 Fax: 408-434-0335 Fax-on-Demand: 1-800-249-1614 (USA) Fax-on-Demand: 1-303-575-6156 (International) e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP, Inc. All other company and product names are trademarks of their respective owners. (c) 1999 IMP, Inc. Printed in USA Preliminary Part No.: IMP2014/15, IMP2185 Document Number: IMP2014-03-04/99 |
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