CM1085SCN252

CM1085 3.0 AMP POSITIVE VOLTAGE REGULATOR GENERAL DESCRIPTION The CM1085 series of high performance positive voltage dropout performance at full rated current. Additionally, the in line, load and temperature. Outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. The CM1085 series are three terminal regulators with adjustable voltage options available in popular packages. FEATURES ! ! ! ! ! ! ! ! Low dropout performance 1.3V max. for CM1085 Full current rating over line and temperature Fast transient response ±2% total output regulation over line, load and temperature Adjust pin current max 90µA over temperature Adjustable output voltage Line regulation typically 0.015% Load regulation typically 0.1% TO-252 package regulators are designed for use in applications requiring low ! CM1085 series provides excellent regulation over variations ! APPLICATIONS ! ! ! Power Supplies Computer Add-On Cards Other Applications Requiring Low Dropout Voltage Over Rated Current PIN CONFIGURATION TO-252 Top View GND/ADJ VO UT 2 1 2003/05/14 Preliminary Rev. 0.2 Champion Microelectronic Corporation VIN 3 Page 1 CM1085 3.0 AMP POSITIVE VOLTAGE REGULATOR BLOCK DIAGRAM INPUT CURRENT LIMITING AMPLIFIER S.O.A Limit SENSE OUTPUT THERMAL OVERLOAD VOLTAGE REGULATION AMPLIFIER VREF ADJ/COM ORDERING INFORMATION Package Type TO-252 CM1085KCN252 CM1085SCN252 CM1085CN252 Operating Temperature Range (TA) 0℃ ~ +70℃ 0℃ ~ +70℃ 0℃ ~ +70℃ Output Voltage 2.5V 3.3V ADJ. ABSOLUTE MAXIMUM RATINGS Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case TO-263 Thermal Resistance Junction to Ambient TO-252 Operating Junction Temperature Range Storage Temperature Range Lead Temperature（Soldering）10 Sec θJA TJ TSTG TLEAD 80 0 to 125 -65 to 150 260 ℃/W ℃ ℃ ℃ θJC 2.5 ℃/W Symbol VIN PD Maximum 7 Internally Limited. Units V W 2003/05/14 Preliminary Rev. 0.2 Champion Microelectronic Corporation Page 2 CM1085 3.0 AMP POSITIVE VOLTAGE REGULATOR ELECTRICAL CHARACTERISTICS Unless otherwise specified, Adj VIN = 3.8V to 7.0V and Adj I0 =10mA to 3.0A, Fixed mode VIN = 4.75V to 7.0V and Adj I0 =10mA to 3.0A Test Conditions Parameter Output Voltage Fixed Voltage Reference Voltage Line Regulation （1） （1） Test Limits Tj 25℃ Min 0.99l V0I 0.98l V0I 1.238 1.225 Typ V0 V0 1.250 1.250 0.015 0.1 1 1.1 5.0 7.5 12 0.005 25℃ 55 0.2 120 5 14 1.3 A mA %/℃ μA μA % 14 mA %VO dB Max 1.01IV0I 1.02IV0I 1.262 1.275 0.2 0.3 % % V V Units V Symbol VO VREF REG（LINE） REG（LOAD） VD ICL IO TC IADJ ΔIADJ TS IO VN （4） VIN 5V 5V l0 0mA 3A 10mA 3A 10mA 125℃ 25℃ 125℃ 25℃ 25℃ 25℃ 125℃ 125℃ Adj Voltage Version （1） （1） Load Regulation Dropout Voltage CM1085 Current Limit 5V （2） Quiescent Current (fixed voltage) Temperature Coefficient Adjust Pin Current Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise （3） 5V 5V 5V 0.5A 0.5 5 25℃ 0.003 60 72 Ripple Rejection Ratio NOTES： RA 5V 5.0A 125℃ （1） Low duty cycle pulse testing with Kelvin connections required. （2） ΔVOUT , ΔVREF =1% （3） Bandwidth of 10 Hz to 10 kHz. （4） 120 Hz input ripple（CADJ for ADJ=25μF） 2003/05/14 Preliminary Rev. 0.2 Champion Microelectronic Corporation Page 3 CM1085 3.0 AMP POSITIVE VOLTAGE REGULATOR APPLICATION CIRCUIT Fixed Output Voltage Regulator Adjustable Regulator 2003/05/14 Preliminary Rev. 0.2 Champion Microelectronic Corporation Page 4 CM1085 3.0 AMP POSITIVE VOLTAGE REGULATOR PACKAGE DIMENSION TO-252 (N252) Y B R C E X L2 L1 K S D G J H L 2003/05/14 Preliminary Rev. 0.2 Champion Microelectronic Corporation A Page 5 CM1085 3.0 AMP POSITIVE VOLTAGE REGULATOR IMPORTANT NOTICE Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. CMC integrated circuit products are not designed, intended, authorized, or warranted to be suitable for Use of CMC products in such applications is In order to minimize risks associated with the customer’s applications, the use in life-support applications, devices or systems or other critical applications. understood to be fully at the risk of the customer. customer should provide adequate design and operating safeguards. HsinChu Headquarter 5F, No. 11, Park Avenue II, Science-Based Industrial Park, HsinChu City, Taiwan T E L : +886-3-567 9979 F A X : +886-3-567 9909 Sales & Marketing 11F, No. 306-3, SEC. 1, Ta Tung Road, Hsichih, Taipei Hsien 221, Taiwan T E L : +886-2-8692 1591 F A X : +886-2-8692 1596 2003/05/14 Preliminary Rev. 0.2 Champion Microelectronic Corporation Page 6