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| ACE511 Technology Description 500mA LDO Linear Voltage Regulator The ACE511 series is a low-drop-out ( LDO ) linear regulator. The devices have been optimized for applications where fast transient response and minimum input voltages are critical. At light loads the typical dropout voltage is 10mV, and at full load the maximum dropout voltage is less than 500mV. The internal over-current protection and thermal protection ,makes the device extremely easy to use in a wide range of applications. Features * * * * * * * * * * Low dropout performance Output current of 500mA typical Thermal shutdown protection Fixed 1.5V/1.8V/2.5V/2.8V/3.0V/3.3V/3.6V output voltages available SOT-89-3, and SOT-23-3 packages available Application Active SCSI terminators Battery chargers High efficiency linear regulators Wireless communication systems Digital camera Absolute Maximum Ratings Parameter Input supply voltage Thermal resistance junction to ambient SOT-89-3 SOT-23-3 Junction temperature Storage temperature range Lead temperature (soldering) 10sec into, negative out of the specified terminal. Symbol VIN JA TJ TSTG TLEAD Max 6 Unit V O C/W 180 230 O 150 C O - 10 to 150 C O 260 C Note : Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive VER 1.2 1 ACE511 Technology Packaging Type SOT-89-3 ACE5111XXAM+ 1 2 1 2 3 3 VOUT GND VIN 500mA LDO Linear Voltage Regulator ACE5112XXAM+ 1 2 3 GND VIN VOUT SOT-23-3 3 ACE5111XXBM+ 1 2 1 2 3 VOUT VIN GND ACE5112XXBM+ 1 2 3 GND VOUT VIN Ordering information Selection Guide ACE511 X XX XX + H Halogen - free Pb - free AM : SOT-89-3 BM : SOT-23-3 Output Voltage 1.5V/1.8V/2.5V/2.8V/3.0V/3.3V/3.6V Pin VER 1.2 2 ACE511 Technology Power Dissipation Table Package AM BM JA ( C /W ) 180 230 O 500mA LDO Linear Voltage Regulator TA=70 OC Power rating(mW) 444 348 TA= 85 OC Power rating (mW) 361 283 TA 25 OC Power rating(mW) 694 543 Note: 1.Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into Thermal shutdown. 2.TJ: Junction Temperature Calculation TJ = TA + ( PD x JA ) The JA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no Ambient airflow. 3.JA : Thermal Resistance-Junction to Ambient, DF: Derating factor, Po: Power consumption Recommended Operating Conditions Parameter Input Voltage Load Current (with adequate heat sinking) Junction temperature Range Symbol VIN IO TJ Operating Conditions Min. 2.8 5 125 Typ. Max. 5.5 Unit V mA O C VER 1.2 3 ACE511 Technology Electrical Characteristics 500mA LDO Linear Voltage Regulator Operating Conditions: VIN = 5V, IOUT =10mA; TJ=25 ,unless otherwise specified.(COUT=2.2uF, ,CIN=2.2 uF) Parameter Symbol Test Conditions ACE511-1.5 (VIN=3.3V) ACE511-1.8 (VIN=3.3V) ACE511-2.5 ACE511-2.8 ACE511-3.0 ACE511-3.3 ACE511-3.6 VIN=(VOUT+1)V to 5.5V VIN=(VOUT+1)V IOUT=10~250mA IOUT=10~500mA Min 1.470 1.764 2.450 2.744 2.940 3.234 3.528 Typ Max 1.5 1.8 2.5 2.8 3.0 3.3 3.6 1 1 1.5 65 0.8 0.7 50 150 20 0.003 51 1.530 1.836 2.550 2.856 3.060 3.366 3.672 Unit Output Voltage VOUT V Line Regulation Load Regulation (2) Ground Current Dropout Voltage (3) Current Limit Output Voltage Temperature Coefficient Thermal Protection RMS Output Noise Ripple Rejection Ratio Notes: VSR VLR IGND VD ILIMIT TC TPRO VN PSRR % % uA V A ppm/ O IOUT=10mA IOUT=500mA VOUT=0V Note 1 Thermal protection temperature Protection Hysterisys TA=25 OC,,10HZ f10KHZ, f = 120Hz, C, %/VO dB 1. Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range. 2. Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 100A to 500mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. 3. Dropout voltages is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. VER 1.2 4 ACE511 Technology Typical Applications 500mA LDO Linear Voltage Regulator Fix Voltage Regulator: ACE511X-XX VIN +1uF Cin Vin GND +1uF Cout Vout VOUT Application Note 1.Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range. Load Regulator Load transient response Output Current (mA) Quiescent Current vs IOUT Time (250us/Div) Output Current (mA) VER 1.2 5 ACE511 Technology Packing Information 500mA LDO Linear Voltage Regulator VER 1.2 6 ACE511 Technology Packing Information 500mA LDO Linear Voltage Regulator VER 1.2 7 ACE511 Technology 500mA LDO Linear Voltage Regulator Notes ACE does not assume any responsibility for use as critical components in life support devices or systems without the express written approval of the president and general counsel of ACE Electronics Co., LTD. As sued herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and shoes failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ACE Technology Co., LTD. http://www.ace-ele.com/ VER 1.2 8 |
Price & Availability of ACE511233AMH
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