APL5910_09

APL5910 1A, Ultra Low Dropout (0.12V Typical) Linear Regulator Features • • • • • • • • • • • • • • Ultra Low Dropout - 0.12V (Typical) at 1A Output Current 0.8V Reference Voltage High Output Accuracy - ±1.5% over Line, Load, and Temperature Range Fast Transient Response Adjustable Output Voltage Power-On-Reset Monitoring on Both VCNTL and VIN Pins Internal Soft-Start Current-Limit and Short Current-Limit Protections Thermal Shutdown with Hysteresis Open-Drain VOUT Voltage Indicator (POK) Low Shutdown Quiescent Current (< 30µA ) Shutdown/Enable Control Function Simple SOP-8P Package with Exposed Pad Lead Free and Green Devices Available (RoHS Compliant) General Description The APL5910 is a 1A ultra low dropout linear regulator. The IC needs two supply voltages, one is the control voltage (VCNTL) for the control circuitry, the other is the main supply voltage (VIN) for power conversion, to reduce power dissipation and provide extremely low dropout voltage. The APL5910 integrates many functions. A Power-OnReset (POR) circuit monitors both supply voltages on VCNTL and VIN pins to prevent erroneous operations. The functions of thermal shutdown and current-limit protect the device against thermal and current over-loads. A POK indicates that the output voltage status with a delay time set internally. It can control other converter for power sequence. The APL5910 can be enabled by other power systems. Pulling and holding the EN voltage below 0.4V shuts off the output. The APL5910 is available in a SOP-8P package which features small size as SOP-8 and an Exposed Pad to reduce the junction-to-case resistance to extend power range of applications. Applications • • • Motherboards, VGA Cards Notebook PCs Add-in Cards Simplified Application Circuit VCNTL VIN VCNTL POK POK VIN VOUT Pin Configuration POK EN VIN VCNTL 1 2 3 4 8 7 6 5 GND FB VOUT NC VOUT APL5910 EN EN GND FB Enable Optional SOP-8P (Top View) = Exposed Pad (connected to ground plane for better heat dissipation) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright © ANPEC Electronics Corp. Rev. A.3 - Jun., 2009 1 www.anpec.com.tw APL5910 Ordering and Marking Information APL5910 Assembly Material Handling Code Temperature Range Package Code APL5910 XXXXX Package Code KA : SOP-8P Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device XXXXX - Date Code APL5910 KA : Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). Absolute Maximum Ratings Symbol VCNTL VIN VOUT Parameter VCNTL Supply Voltage (VCNTL to GND) VIN Supply Voltage (VIN to GND) VOUT to GND Voltage POK to GND Voltage EN, FB to GND Voltage PD TJ TSTG TSDR Power Dissipation Maximum Junction Temperature Storage Temperature Range Maximum Lead Soldering Temperature, 10 Seconds Rating -0.3 ~ 6 -0.3 ~ 6 -0.3 ~ VIN+0.3 -0.3 ~ 7 -0.3 ~ VCNTL+0.3 2.5 150 -65 ~ 150 260 V W ο Unit V V V C C ο ο C Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Characteristics Symbol θJA θJC Parameter Junction-to-Ambient Resistance in Free Air (Note 1) Typical Value SOP-8P 50 20 Unit o C/W C/W Junction-to-Case Resistance in Free Air (Note 2) SOP-8P o Note 1: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. Note 2: The “Thermal-Pad Temperature” is measured on the PCB copper area connected to the thermal pad of package. 1 2 3 4 8 7 6 5 Measured Point PCB Copper C opyright © A NPEC Electronics Corp. Rev. A.3 - Jun., 2009 2 www.anpec.com.tw APL5910 Recommended Operating Conditions Symbol VCNTL VIN VOUT IOUT R2 COUT ESRCOUT TA TJ VCNTL Supply Voltage VIN Supply Voltage VOUT Output Voltage (when VCNTL-VOUT>1.4V) VOUT Output Current FB to GND IOUT=1A at 25% nominal VOUT VOUT Output Capacitance IOUT=0.5A at 25% nominal VOUT IOUT=0.25A at 25% nominal VOUT ESR of VOUT Output Capacitor Ambient Temperature Junction Temperature Parameter Range 3.0 ~ 5.5 1.0 ~ 5.5 0.8 ~ VIN - VDROP 0~1 1k ~ 24k 8 ~ 600 8 ~ 900 8 ~ 1100 0 ~ 200 -40 ~ 85 -40 ~ 125 mΩ ο Unit V V V A Ω µF C C ο Electrical Characteristics Refer to the typical application circuits. These specifications apply over VCNTL=5V, VIN=1.5V, VOUT=1.2V, and TA= -40 ~ 85oC, unless otherwise specified. Typical values are at TJ=25oC. Symbol SUPPLY CURRENT IVCNTL ISD VCNTL Supply Current VCNTL Supply Current at Shutdown VIN Supply Current at Shutdown POWER-ON-RESET (POR) Rising VCNTL POR Threshold VCNTL POR Hysteresis Rising VIN POR Threshold VIN POR Hysteresis OUTPUT VOLTAGE VREF Reference Voltage Output Voltage Accuracy Load Regulation Line Regulation VOUT Pull-Low Resistance FB Input Current DROPOUT VOLTAGES VOUT=2.5V VDROP VIN-to-VOUT Dropout Voltage VCNTL=4.5V, IOUT=1A VOUT=1.8V VOUT=1.2V TJ=25oC TJ=-40~125oC TJ=25 C TJ=-40~125oC TJ=25oC TJ=-40~125oC o Parameter Test Conditions APL5910 Min. Typ. Max. Unit EN = VCNTL, IOUT=0A EN = GND EN = GND, VIN=5.5V - 1.0 20 - 1.5 30 1 mA µA µA 2.5 0.8 FB=VOUT, IOUT=10mA,TJ=25oC IOUT= 0~1A, TJ= -40~125 C IOUT=0A ~1A IOUT=10mA, VCNTL= 3.0 ~ 5.5V VCNTL=3.3V,VEN=0V, VOUT