AP131_09

AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Features • • • • • • • • • • • • • • • Input Voltage Range is from 2.7 to 5.5V Dropout Voltage 400mV at 300mA Output Current Guaranteed 300mA Output Current Internal Ron = 1.5Ω PMOS draws no Base Current Low Quiescent Current 50µA Output Voltage: 1.5V/1.8V/2.0V/2.5V/2.8V/ 2.9V/3.0V/3.3V/ 3.5V; Accuracy 2% Active Low Shutdown Function (EN pin) Fast Transient Response Good Load Regulation Current Limit and Thermal Shutdown Protection Short Circuit Current Fold-Back Lead Free package: SOT25 SOT25: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) General Description The AP131 is a 300mA, fixed output voltage, low dropout linear regulator. The Device included pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry. The device is ON when the EN pin is set to logic high level. The characteristics of low dropout voltage and less quiescent current make it good for some critical current applications, for example, some battery powered devices. The typical quiescent current is approximately 50µA from zero to maximum load. Due to the internal flexible design, it results in extensively fixed output voltage versions and makes it convenient to use for applications. Built-in current-limit and thermal-shutdown functions prevent any fault condition from IC damage. An external capacitor can be connected to the BP pin and reduce the output noise. Applications • • • • Battery Powered Device Wireless Communication CD-ROM, DVD, and LAN Card PC Peripheral Ordering Information AP131 - XX W X - 7 Output Voltage 15 :1.5V 18 :1.8V 20 :2.0V 25 :2.5V 28 :2.8V 29 :2.9V 30 :3.0V 33 :3.3V 35 :3.5V Package W : SOT25 Lead Free L : Lead Free G : Green Packing 7 : Tape & Reel Device Lead-free Package Code W W AP131-XXWL-7 AP131-XXWG-7 Notes: Packaging (Note 2) SOT25 SOT25 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP131 Rev. 7 1 of 7 www.diodes.com FEBRUARY 2009 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Pin Assignment ( Top View ) IN 1 2 EN 3 SOT25 4 BP 5 OUT Pin Description Pin Name IN GND EN BP OUT Ground Enable Pin Band-gap Output Voltage Description Input Voltage Block Diagram IN Error Amp + OUT C urrent Limit EN Enable Bandgap 1.08V Thermal Shutdown BP GND AP131 Rev. 7 2 of 7 www.diodes.com FEBRUARY 2009 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Absolute Maximum Ratings Symbol VCC TOP TST PD Parameter Input Voltage Operating Junction Temperature Range Storage Temperature Range Power Dissipation, PD @ TA = 25ºC SOT25 Rating +6 -40 to +125 -65 to +150 250 Unit V ºC ºC mW Recommended Operating Conditions Symbol VIN IOUT TA Input Voltage Output Current Operating Ambient Temperature Parameter Min 2.7 0 -40 Max 5.5 300 85 Unit V mA °C AP131 Rev. 7 3 of 7 www.diodes.com FEBRUARY 2009 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Electrical Characteristics TA = 25ºC, CIN = 1µF, COUT = 10µF, unless otherwise specified. Symbol Parameter Conditions VDROP ILIMIT Ishort ΔVLINE ΔVLOAD ΔVOUT Dropout Voltage (Note 3) Current Limit (Note 4) Short Circuit Current Line Regulation Load Regulation (Note 5) Output Voltage Accuracy Output Voltage Temperature Coefficient (Note 6) Ripple Rejection Standby Current Quiescent Current Enable Pin Current Enable Pin Voltage Enable Delay Time Thermal Resistance Junction-to-Ambient Thermal Resistance Junction-to-Case Min 350 -2 - Typ. 400 450 150 0.1 30 50 60 50 8 163 53 Max 500 300 0.3 35 +2 150 5 100 < 0.1 VIN 0.8 - Unit mV mA mA %/V mV % PPM/ ºC dB μA μA μA V V μS O IL = 300mA VIN = 5V, VOUT = 0V VOUT < 1.05V IOUT=1mA, VIN =( VOUT +1V ) to 5.5V IL = 1~300mA, VIN = 5V IL = 1mA, VIN = 5V PSRR ISB IQ IEN VENON VENOFF TDELAY θJA θJC Notes: F = 100Hz, CIN = 1μF, CO = 10uF, IL = 100mA IL = 0mA, VIN = 5V, EN = 0V IL = 0mA, VIN = 5V, EN = 5V Output ON Output OFF CBP = 0.1μF, COUT = 1μF, IOUT = 30mA SOT25 (Note 7) SOT25 (Note 7) 1.5 0 - C/W C/W O 3. Dropout voltage is defined as the input to output differential voltage. Dropout is measured at constant junction temperature by using pulsed ON time, and the criterion is VOUT inside target value ±2%. This test is skipped at the condition of VIN