ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Description The ACE5019A series are a group of positive voltage regulators manufactured by CMOS technologies with low power consumption and low dropout voltage, which provide large output currents even when the difference of the input-output voltage is small. The ACE5019A series can deliver 300mA output current and allow an input voltage as high as 18V. The series are very suitable for the battery-powered equipments, such as RF applications and other systems requiring a quiet voltage source. Features Low Quiescent Current: 2μA Operating Voltage Range: 2.5V～18V Output Current: 350mA Low Dropout Voltage：160mV@100mA(VOUT =3.3V) Output Voltage: 1.2~ 5.0V High Accuracy: ±2％/±1％（Typ.） High Power Supply Rejection Ratio: 65dB@1kHz Low Output Noise: 27xVOUT μVRMS (10Hz~100kHz) Excellent Line and Load Transient Response Built-in Current Limiter, Short-Circuit Protection Application Cordless Phones Radio control systems Laptop, Palmtops and PDAs Single-lens reflex DSC PC peripherals with memory Wireless Communication Equipments Portable Audio Video Equipments Car Navigation Systems LAN Cards Ultra Low Power Microcontroller VER 1.1 1 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Absolute Maximum Ratings (1) Unless otherwise specified, TA=25°C Parameter Symbol Max Unit VIN -0.3~24 V Output Voltage VOUT -0.3~10 V CE PIN Voltage VCE -0.3~24 V Output Current IOUT 600 mA Input Voltage(2) (2) SOT-23-3 Power Dissipation 0.4 SOT-23-5 Pd 0.4 SOT-89-3 0.6 (3) Topr - 40~125 O C Tstg - 40~125 O C Tsolder 260 O C Human Body Model -(HBM) 8 kV Machine Model- (MM) 400 V Operating Junction Temperature Range Storage Temperature Lead Temperature(Soldering, 10 sec) (4) W ESD rating Note: (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods my affect device reliability. (2) All voltages are with respect to network ground terminal. (3) The ACE5019A includes over temperature protection that is intended to protect the device during momentary overload. Junction temperature will exceed 125°C when over temperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. (4) ESD testing is performed according to the respective JESD22 JEDEC standard. The human body model is a 100 pF capacitor discharged through a 1.5kΩ resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin. Recommended Operating Conditions Parameter MIN. MAX. Units Supply voltage at VIN 2.5 18 V Operating junction temperature range, Tj -40 125 °C Operating free air temperature range, TA -40 85 °C VER 1.1 2 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Packaging Type SOT-23-3 SOT-23-5 SOT-23-3 SOT-89-3 SOT-23-5 SOT-89-3 Pin Name Function 2 VSS Ground 1 3 VOUT Output 3 1 VIN Power input 3 CE Chip Enable Pin 4 NC No Connection A B C A B C A B C 1 3 3 2 1 2 1 2 2 2 1 5 3 5 3 3 1 2 1 2 1 2 3/4 4/5 Ordering information ACE5019A X XX XX + H Halogen - free Pb - free BMA：SOT-23-3A BMB：SOT-23-3B BMC：SOT-23-3C BNA：SOT-23-5A BNB：SOT-23-5B BNC：SOT-23-5C AMA：SOT-89-3A AMB：SOT-89-3B AMC：SOT-89-3C Output Voltage：1.2 / 1.5V …../5.0V A：1% B：2% VER 1.1 3 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Block Diagram Typical Application Circuit VER 1.1 4 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Electrical Characteristics (VIN=VOUT+1V, C IN=COUT =1μF， TA=25 OC, unless otherwise specified) Parameter Symbol Input Voltage VIN Output Voltage Range VOUT DC Output Accuracy Conditions IOUT =1mA Vdif(2) VOUT=3.3V Supply Current ISS IOUT =0A ∆VOUT IOUT =10mA VOUT ✕∆V IN VOUT +1V≤VIN≤18V ∆VOUT VIN= VOUT +1V, Load Regulation Temperature Coefficient IOUT =10mA, VOUT ✕∆TA -40°C<TA<125°C Output Current Limit ILIM Short Current ISHORT Power Supply Rejection Ratio Output Noise Voltage Thermal Shutdown Temperature Thermal Shutdown Hysteresis PSRR 18 V 1.2 5 V -2 2 % -1 1 % 160 VOUT=0.5xVOUT(Normal), VIN = 5V VOUT =VSS IOUT =50mA 350 mV 2 5 μA 0.01 0.3 %/V 10 mV 50 ppm 500 mA 25 mA 100Hz 80 1kHz 65 10kHz 50 100kHz 45 dB μVRMS TSD 150 °C ∆TSD 20 °C ISTBY CE "High" Voltage VCE“H” CE "Low" Voltage VCE“L” Resistance 2.5 27 x VOUT VON Standby Current COUT Auto-Discharge Units 1mA≤IOUT≤100mA ∆VOUT Typ(1) Max IOUT =100mA, Dropout Voltage Line Regulation Min RDISCHRG BW=10Hz to 100kHz CE = VSS 1.5 VIN=5V, VOUT =3.0V, VCE=VSS 150 0.2 VIN μA 0.3 V V Ω Note: (1) Typical numbers are at 25°C and represent the most likely norm. (2) Vdif：The Difference Of Output Voltage And Input Voltage When Input Voltage Is Decreased Gradually Till Output Voltage Equals To 98% Of VOUT (E). VER 1.1 5 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Typical Performance Characteristics VER 1.1 6 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator VER 1.1 7 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Application Information Selection of Input/ Output Capacitors In general, all the capacitors need to be low leakage. Any leakage the capacitors have will reduce efficiency, increase the quiescent current. A recent trend in the design of portable devices has been to use ceramic capacitors to filter DC-DC converter inputs. Ceramic capacitors are often chosen because of their small size, low equivalent series resistance (ESR) and high RMS current capability. Also, recently, designers have been looking to ceramic capacitors due to shortages of tantalum capacitors. Unfortunately, using ceramic capacitors for input filtering can cause problems. Applying a voltage step to a ceramic capacitor causes a large current surge that stores energy in the inductances of the power leads. A large voltage spike is created when the stored energy is transferred from these inductances into the ceramic capacitor. These voltage spikes can easily be twice the amplitude of the input voltage step. (See “Ceramic Input Capacitors Can Cause Overvoltage Transients”——Linear Technology application note 88, March 2001) Many types of capacitors can be used for input bypassing; however, caution must be exercised when using multilayer ceramic capacitors (MLCC). Because of the self-resonant and high Q characteristics of some types of ceramic capacitors, high voltage transients can be generated under some start-up conditions, such as connecting the LDO input to a live power source. Adding a 3Ω resistor in series with an X5R ceramic capacitor will minimize start-up voltage transients. The LDO also requires an output capacitor for loop stability. Connect a 1μF tantalum capacitor from OUT to GND close to the pins. For improved transient response, this output capacitor may be ceramic. VER 1.1 8 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Packing Information SOT-23-3 VER 1.1 9 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Packing Information SOT-23-5 VER 1.1 10 ACE5019A 18V Low Current Consumption 350mA CMOS Voltage Regulator Packing Information SOT-89-3 VER 1.1 11 ACE5019A 18V Low Current Consumption 350mA CMOS 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 1.1 12