CM1117 1A LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION FEATURES The CM1117 series of adjustable and fixed voltage regulators Three Terminal Adjustable or Fixed Voltages: 1.8V, 2.5V, are designed to provide 1A for applications requiring high 3.3V, and adjustable. efficiency. All internal circuitry is designed to operated down to Output Current of 1A 800mV input to output differential and the dropout voltage is Low dropout voltage: 1V Typ. fully specified as a function of load current. Line Regulation: 0.2% Max Load Regulation: 0.4% Max The CM1117 offers current limiting and thermal protection. Fast Transient Response The on chip trimming adjusts the reference voltage accuracy Thermal Protection to 1%. SOT-223 and TO-252 package available APPLICATIONS High Efficiency Linear Regulators Post Regulators for Switching Supplies Battery Chargers Active SCSI Terminators Post Regulator for Switching DC/DC Converter Battery Powered Instrumentation PIN CONFIGURATION TO-252 Front View VOUT 2 G N D /AD J 1 VIN 3 VOUT V IN GND/ADJ SOT-223 Top View 1 2 3 ORDERING INFORMATION Package Type Operating Temperature Output Voltage TO-252 SOT-223 Range (TA) CM1117DCN252 CM1117DCM223 0℃ ~ +70℃ 1.8V CM1117KCN252 CM1117KCM223 0℃ ~ +70℃ 2.5V CM1117SCN252 CM1117SCM223 0℃ ~ +70℃ 3.3V CM1117CN252 CM1117CM223 0℃ ~ +70℃ ADJ. CM1117GDCN252* CM1117GDCM223* 0℃ ~ +70℃ 1.8V CM1117GKCN252* CM1117GKCM223* 0℃ ~ +70℃ 2.5V CM1117GSCN252* CM1117GSCM223* 0℃ ~ +70℃ 3.3V CM1117GCN252* CM1117GCM223* 0℃ ~ +70℃ ADJ. *Note: G : Suffix for Pb Free Product 2004/06/01 Preliminary Rev. 1.5 Champion Microelectronic Corporation Page 1 CM1117 1A LOW DROPOUT VOLTAGE REGULATOR ABSOLUTE MAXIMUM RATINGS Input Voltage …………….…………………………………………….……. +12V Operating Junction Temperature Range, TJ ……………...… 0℃ to +125℃ Storage Temperature ………………………………….….…... -65℃ to +150℃ Lead Temperature (10 sec.) ……..……………………..….…………….... 260℃ RESOMMENDED OPERATING CONDITIONS Parameter Symbol VIN Input Voltage Min. 2.7 Typ. Max 7 Units V THERMAL INFORMATION Parameter Thermal Resistance (Θjc) Thermal Resistance (Θja) Internal Power Dissipation (PD) (ΔT = 100℃, No Heatsink) SOT-223 TO-252 SOT-223 TO-252 SOT-223 TO-252 Maximum Junction Temperature Maximum Lead Temperature (10 Sec) Maximum 50 50 100 80 900 1500 150 300 Unit ℃/W ℃/W mW ℃ ℃ BLOCK DIAGRAM 2004/06/01 Preliminary Rev. 1.5 Champion Microelectronic Corporation Page 2 CM1117 1A LOW DROPOUT VOLTAGE REGULATOR ELECTRICAL CHARACTERISTICS Electrical Characteristics at IOUT = 10mA, and TJ = +25℃; unless otherwise noted Parameter Device Test Conditions Reference Voltage CM1117 Output Voltage Line Regulator Load Regulation Dropout Voltage (VIN – VOUT ) Current Limit Unit Typ. Max. IOUT = 10mA, VIN= 5V 1.238 1.250 1.262 V CM1117D 10mA <= IOUT <= 1A, 3.2V<= VIN <= 7V 1.764 1.800 1.836 V CM1117K 10mA <= IOUT <= 1A, 4.25V<= VIN <= 7V 2.450 2.500 2.550 V CM1117S 10mA <= IOUT <= 1A, 4.75V<= VIN <= 7V 3.234 3.300 3.366 V Adj. Output IOUT = 10mA, 1.5V<= VIN <= 7V 0.04 0.20 % Fixed Output IOUT = 10mA, VOUT + 1.5V<= VIN <= 7V 1.0 6.0 mV Adj. Output 10mA <= IOUT <= 1A, VIN – VOUT = 3V 0.10 0.30 % Fixed Output 10mA <= IOUT <= 1A, VIN = VOUT + 1.5V 1.0 10.0 mV IOUT = 10mA 1 IOUT = 1A 1.1 Fixed Output Fixed Output (VIN – VOUT ) = 3V Minimum Load Current (Note 1) Quiescent Current CM1117 Min. Fixed Output Ripple Rejection (Note 2) (Note 2) Adjust Pin Current 1.1 V A VIN <= 7V 5 14 mA VIN <= 7V 12 14 mA fO = 120Hz, 1VRMS, , IOUT = 400mA, (VIN – VOUT )= 3V Thermal Regulation 1 1.30 60 75 dB TA = 25℃, 30ms pulse 0.01 0.1 %W IOUT = 10mA, VIN – VOUT = 2V 50 120 µA Note 1: For the adjustable device, the minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor divider used to set the output voltage is selected to meet the minimum load current requirement. Note 2: These parameters, although guaranteed, are not tested in production. 2004/06/01 Preliminary Rev. 1.5 Champion Microelectronic Corporation Page 3 CM1117 1A LOW DROPOUT VOLTAGE REGULATOR APPLICATION CIRCUIT Adjustable Regulator VOUT = 1.25V (1+R2/R1) 5V Regulator with Shutdown Fixed Voltage Regulator 2004/06/01 Preliminary Rev. 1.5 Champion Microelectronic Corporation Page 4 CM1117 1A LOW DROPOUT VOLTAGE REGULATOR PACKAGE DIMENSION SOT-223 (M223) D A L L1 H E B1 e e1 A 8° B B1 D E e e1 H L L1 B θ B TO-252 (N252) Y C B E L J D H G 2004/06/01 Preliminary A K L1 S L2 X R Rev. 1.5 Champion Microelectronic Corporation Page 5 CM1117 1A LOW DROPOUT 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 in life-support applications, devices or systems or other critical applications. Use of CMC products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer’s applications, the customer should provide adequate design and operating safeguards. HsinChu Headquarter Sales & Marketing 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 11F, No. 306-3, SEC. 1, Ta Tung Road, Hsichih, Taipei Hsien 221, Taiwan 2004/06/01 Preliminary T E L : +886-2-8692 1591 F A X : +886-2-8692 1596 Rev. 1.5 Champion Microelectronic Corporation Page 6