Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Description ACE501 series is a group of positive voltage output, low power consumption, low dropout voltage, three terminal regulator. It can provide 250mA output current when input / output voltage differential drops to 400mV (Vin=4.0V. Vout=3.0V).The very low power consumption of ACE501 (lq=3.0uA) can greatly improve natural life of batteries. ACE501 can provide output value in the range of 1.2V~6.0V in 0.1V steps. It also can customized on command. ACE501 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE501 has well load transient response and good temperature characteristic, which can assure the stability of chip and power system, And it uses trimming technique to guarantee output voltage accuracy within ±2%. ACE501 is available in SOT-89-3. SOT-23-3 package which is lead free. It also can available in these packages with lead. Features • • • • • • • Low Power Consumption: 1.5uA (Typ) Maximum Output Current: 250mA Small Dropout Voltage 170mV@100mA (Vout=3.0V) / 400mV@250mA (Vout=3.0V) Input Voltage Range: 1.5V~10V Output Voltage Range: 1.2V~6.0V (customized on command in 0.1V steps) High Accurate: ±2% (±1% customized)e Output Current Limit Application • • • • Battery Powered equipment Power Management of MP3. PDA. DSC. Mouse. PS2 Games Reference Voltage Source Regulation after Switching Power Typical Performance Characteristic: Output Voltage vs. Output Current (Vout=1.5V) Output Current (mA) VER 1.2 1 Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Absolute Maximum Ratings Parameter Symbol Max Unit Input supply voltage Power Dissipation SOT-23-3 SOT-89-3 Junction temperature Storage temperature Ambient Temperature VIN 10 V W TJ TS TA 0.15 0.5 125 - 45 to 150 -40 ~85 O C C O C O Packaging Type SOT-89-3 SOT-23-3 3 1 Pin VSS VIN VOUT 2 3 SOT-89-3 1 2 3 1 SOT-23-3 1 3 2 2 Function Ground Supply Voltage Input Output Voltage Ordering information Selection Guide ACE501 XX XX + H Halogen - free Pb - free AM : SOT-89-3 BM: SOT-23-3 Output Voltage： 1.2V/2.1V…..6.0V VER 1.2 2 Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Block Diagram Recommended Work Conditions Item Input Voltage Range Ambient Temperature Min Recommended -40 Max Unit 8 V +125 ℃ Electrical Characteristics (Test Conditions: Cin=1uF, Cout=1uF,TA=25℃, unless otherwise specified.) ACE501-1.5V Parameter Input Voltage Output Voltage Maximum Output Current Input-Output Voltage Differential Line Regulation Symbol VIN VOUT IOUT(Max.) Dropout Voltage ΔVOUT / ΔVIN‧VOUT Load Regulation ΔVOUT Quiescent Current Output Voltage Temperature Coefficient Iq ΔVOUT / ΔT‧VOUT Conditions Min VIN=2.5V, VOUT>1.47 1.47 250 IOUT=100mA IOUT=40mA 1.6V≦VIN≦8A VIN=2.5V 1mA≦IOUT≦100mA VIN=2.5V IOUT=10mA Typ Max 8 1.5 1.53 Units V V mA 270 400 mV 0.2 0.3 %/V 20 40 mV 1.5 3.0 uA 50 ppm/℃ VER 1.2 3 Technology ACE501-3.0 Parameter Input Voltage Output Voltage Maximum Output Current Input-Output Voltage Differential Line Regulation ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Symbol VIN VOUT IOUT(Max.) Dropout Voltage ΔVOUT / ΔVIN‧VOUT Load Regulation ΔVOUT Quiescent Current Output Voltage Temperature Coefficient Iq ΔVOUT / ΔT‧VOUT Conditions VIN=4V, VOUT>2.94 IOUT=100mA IOUT=200mA IOUT=40mA 3.2V≦VIN≦8A VIN=4.0V 1mA≦IOUT≦100mA VIN=4V IOUT=10mA Min 2.94 250 Typ Max 8 3.0 3.06 Units V V mA 170 320 300 500 mV 0.2 0.3 %/V 20 40 mV 1.5 uA 50 ppm/℃ Typical Application Circuit ACE501 Vin Vin Vout Vout GND + 1uF Cin + 1uF Cout Application hints: Note 1:Input capacitor (Cin=1uF) is recommended in all application circuit. Tantalum capacitor is recommended. Note 2:Output capacitor (Cout=1uF) is recommended in all application to assure the stability of circuit. Tantalum capacitor is recommended. Explanation： ACE501 is a series of low dropout voltage and low power consumption three pins regulator. Its application circuit is very simple, which only needs two outside capacitors. It is composed of these modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and power transistor. Current Limit module can keep chip and power system away from danger when load current is more than 250mA. ACE501 uses trimming technique to assure the accuracy of output value within±2%, at the same time, temperature compensated is elaborately considered in this chip, which makes ACE501’s temperature coefficient within 50ppm/℃. VER 1.2 4 Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Typical Performance Characteristics 1. Load regulation 2. Line Regulation 3. Dropout Voltage VER 1.2 5 Technology 4. Input Voltage transient response (Vout=1.5V, Iout=10mA) Input Voltage transient response (Vout=3.0V, Iout=10mA) 5. Load transient response (Vout=1.5V) ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Input Voltage transient response (Vout=1.5V, Iout=1mA) Input Voltage transient response (Vout=3.0V, Iout=1mA) Load transient response (Vout=3.0V) VER 1.2 6 Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Packing Information SOT-89-3 VER 1.2 7 Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption Regulator Packing Information SOT-23-3 VER 1.2 8 Technology ACE501 250mA CMOS Low Dropout Voltage Low consumption 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 9