AP2205 WIDE INPUT VOLTAGE RANGE, 200mA ULDO REGULATOR Description Pin Assignments (Top View) (Top View) The AP2205 series is a positive voltage regulator IC fabricated by a high voltage EPNP process. 3 VOUT 3 VIN The AP2205 has various features such as a wide input voltage range, high accuracy, high ripple rejection, low dropout voltage, low noise, GND 2 GND GND 2 GND current limit, and ultra-low quiescent currentwhich make it ideal for use in various USB and portable devices. 1 VIN 1 VOUT The IC consists of a voltage reference, an error amplifier, a resistor SOT89 (Note 1) SOT89R (Note 1) network for setting output voltage, a current limit circuit for current Note: The substrate/exposed pad should be connected to GND or open. protection, a chip enable circuit, a low power shutdown mode for extended battery life, over-current protection, over-temperature (Top View) protection, as well as reverse current protection. VIN 1 5 VOUT The AP2205 has 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 5.0V fixed voltage versions and an adjustable voltage version. GND 2 The AP2205 is available in the space-saving SOT25 and SOT89 ADJ/NC EN 3 4 packages. SOT25 Features Applications Wide Input Voltage Range: 2.3V to 24V Battery-powered Equipment Wide Output Voltage Range: 1.24V to 22V Laptop, Palmtops, Notebook Computers Excellent Ripple Rejection: 60dB f = 1kHz Portable Information Appliances Low Dropout Voltage: V = 100mV I = 100A Industrial/Automotive Applications DROP OUT Low Ground Current High Output Voltage Accuracy Compatible with Low ESR Ceramic Capacitor Excellent Line/Load Regulation Thermal Shutdown Function Moisture Sensitivity: SOT89: Level 3 Per J-STD-020 SOT25: Level 1 Per J-STD-020 Terminals: SOT89/ SOT25: FinishMate Tin Plated Leads, Solderable per MIL-STD-202, Method 208 Weight: SOT89: 0.062 grams (Approximate) SOT25: 0.0157 grams (Approximate) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. AP2205 Typical Applications Circuit V = V (1+(R1/R2)) OUT REF AP2205 ADJ Version V VOUT V IN VIN OUT SOT25 R1 R3 C OUT EN GND ADJ C IN 2.2F C1 1.0F R2 Startup Time Adjustable by External R3C1 Circuit AP2205 Fixed Version V VOUT V IN VIN OUT SOT25 R3 C OUT EN GND NC C IN 2.2F C1 1.0F Startup Time Adjustable by External R3C1 Circuit 2 of 16 November 2020 AP2205 Diodes Incorporated www.diodes.com Document number: DS41592 Rev. 3 - 2