Data Sheet 500mA LOW NOISE LDO REGULATOR AP2213 General Description Features The AP2213 is a 500mA output current fixed voltage Up to 500mA Output Current regulator which provides low noise, very low dropout Low Standby Current voltage (typically 350mV at 500mA), very low Low Dropout Voltage: V =350mV at 500mA DROP standby current (1A maximum) and excellent power High Output Accuracy: 1% supply ripple rejection (PSRR 75dB at 100Hz) in bat- Good Ripple Rejection Ability: 75dB at 100Hz tery powered applications, such as handsets and PDAs and I =100A OUT and in noise sensitive applications, such as RF elec- tronics. Tight Load and Line Regulation Low Temperature Coefficient The AP2213 features individual logic compatible Over Current Protection enable/shutdown control inputs, a low power shut- Thermal Protection down mode for extended battery life, over current pro- Reversed-battery Protection tection, over temperature protection, as well as Logic-controlled Enable reversed-battery protection. Applications The AP2213 has 2.5V, 3.0V and 3.3V versions. The AP2213 is available in TO-252-2 (1), TO-252-2 Laptop, Notebook, and Palmtop Computer (3), SOIC-8 and SOT-223 packages. CD-ROM, CD-R/RW, DVD Driver Portable Electronic PC Peripheral TO-252-2 (1) TO-252-2 (3) SOIC-8 SOT-223 Figure 1. Package Types of AP2213 Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited 1Data Sheet 500mA LOW NOISE LDO REGULATOR AP2213 Pin Configuration D Package (TO-252-2 (1)) (TO-252-2 (3)) 3 VOUT 3 VOUT 2 GND 2 GND 1 VIN 1 VIN H Package M Package (SOT-223) (SOIC-8) 8 1 GND EN 3 VIN 2 7 GND VIN 2 VOUT VOUT 3 6 GND 1 GND 5 4 GND BYP Figure 2. Pin Configuration of AP2213 (Top View) Pin Description Pin Number Pin Name Function TO-252-2 (1)/ SOIC-8 SOT-223 TO-252-2 (3) 3 3 2 VOUT Regulated output voltage 2 5, 6, 7, 8 1 GND Ground 1 2 3 VIN Input Voltage Enable input: CMOS or TTL compatible input. Logic 1EN high=enable, logic low=shutdown 4 BYP Bypass capacitor for low noise operation Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited 2