DatasheetsPDF.com

AM9308 Dataheets PDF



Part Number AM9308
Manufacturers XiangShuo
Logo XiangShuo
Description High Efficiency 1MHz 2A Step-Up Regulator
Datasheet AM9308 DatasheetAM9308 Datasheet (PDF)

AM9308 High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification General Description The ASMY97310582 is a high efficiency boost regulator targeted for general step-up applications. Ordering Information AM9308 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number Package type Note SAYM79135028AABC SOT23-6 2A Features • Wide input range: 3-8V bias input, 16Vout max • 1MHz switching frequency • Minimum on time: 100ns typical • M.

  AM9308   AM9308


Document
AM9308 High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification General Description The ASMY97310582 is a high efficiency boost regulator targeted for general step-up applications. Ordering Information AM9308 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number Package type Note SAYM79135028AABC SOT23-6 2A Features • Wide input range: 3-8V bias input, 16Vout max • 1MHz switching frequency • Minimum on time: 100ns typical • Minimum off time: 100ns typical • Low RDS(ON): 150mΩ • RoHS Compliant and Halogen Free • Accurate Reference: 0.6VREF • Compact package: SOT23-6 Applications • WLED Drivers • Networking cards powered from PCI or PCI- express slots Typical Applications Figure 1. Schematic Diagram Figure 2. Efficiency vs Load Current TEL:0755-36848411 http://www.sz-xiangshuo.com FAX:0755-29765461 1 Pinout (top view) AM9308 (SOT23-6) Top Mark: LExyz (Device code: LE, x=year code, y=week code, z= lot number code) Pin Name IN GND LX FB EN Pin Number 5 2 1 3 4 Pin Description Input pin. Decouple this pin to GND pin with 1uF ceramic cap. Ground pin Inductor node. Connect an inductor between IN pin and LX pin. Feedback pin. Connect a resistor R1 between VOUT and FB, and a resistor R2 between FB and GND to program the output voltage: VOUT=0.6V*(R1/R2+1). Enable control. High to turn on the part. Don’t leave it floated. NC 6 No connection. Absolute Maximum Ratings (Note 1) LX, IN, EN ----------------------------------------------------------------------------------------------------------------------- 18V All other pins-------------------------- ------------------------------------------------------------------------------------------ 3.6V Power Dissipation, PD @ TA = 25°C SOT23-6 ----------------------------------------------------------------------------- 0.6W Package Thermal Resistance (Note 2) θ JA --------------------------------------------------------------------------------------------------------------- 161°C/W θ JC --------------------------------------------------------------------------------------------------------------- 130°C/W Junction Temperature Range ----------------------------------------------------------------------------------------------- 125°C Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------------- 260°C Storage Temperature Range ------------------------------------------------------------------------------------- -65°C to 150°C Recommended Operating Conditions (Note 3) Input Voltage Supply------------------------------------------------------------------------------------------------------ 3V to 8V Junction Temperature Range ------------------------------------------------------------------------------------- -40°C to 125°C Ambient Temperature Range ------------------------------------------------------------------------------------- -40°C to 85°C TEL:0755-36848411 http://www.sz-xiangshuo.com FAX:0755-29765461 2 Electrical Characteristics (VIN = 5V, VOUT=12V, IOUT=100mA, TA = 25°C unless otherwise specified) Parameter Input Voltage Range Quiescent Current Shutdown Current Low Side Main FET RON Main FET Current Limit Switching Frequency Feedback Reference Voltage IN UVLO Rising Threshold UVLO Hysteresis Thermal Shutdown Temperature EN Rising Threshold EN Falling Threshold EN Pin Input Current Max Duty Cycle Symbol VIN IQ ISHDN Rds(on) ILIM1 Fsw VREF VIN,UVLO UVLO,HYS TSD VENH VENL IEN Test Conditions VFB=0.66V EN=0 AM9308 Min Typ Max Unit 3 8V 100 µA 15 µA 150 mΩ 2A 0.8 1 1.2 MHz 0.588 0.6 0.612 V 1.8 V 0.1 V 150 °C 1.5 V 0.4 V 0 100 nA 90 % Note 1: Stresses listed beyond the “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may remain possibility to affect device reliability. Note 2: θ JA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Test condition: Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane. Note 3: The device is not guaranteed to function outside its operating conditions. Note 4: IC could be start up in 1.8V. TEL:0755-36848411 http://www.sz-xiangshuo.com FAX:0755-29765461 3 Typical Performance Characteristics Efficiency (%) Efficiency vs Load Current 91 90 89 88 87 86 85 84 3.3VIN,5VOUT 83 82 0 0.2 0.4 0.6 0.8 Load Current (mA) 1 AM9308 TEL:0755-36848411 http://www.sz-xiangshuo.com FAX:0755-29765461 4 Output Ripple (VIN=3.3V, VOUT=5V,Iload=300mA) AM9308 Output Ripple (VIN=3.3V, VOUT=5V,Iload=500mA) LX (5V/div) VO(AC) (10mV/div) IL (0.5A/div) Time(1us/.


KPM2015 AM9308 MAX333A


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)