AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN General Description 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) 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 Device Lead-free AP131-XXWL-7 AP131-XXWG-7 Notes: Output Voltage Package 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 W : SOT25 Package Code W W Lead Free L : Lead Free G : Green Packaging (Note 2) SOT25 SOT25 Packing 7 : Tape & Reel 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 5 OUT 4 BP 2 EN 3 SOT25 Pin Description Pin Name Description IN Input Voltage GND Ground EN Enable Pin BP Band-gap OUT Output Voltage Block Diagram IN OUT Error Amp Current Limit EN - + Enable Bandgap 1.08V Thermal Shutdown GND BP 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 Parameter VCC TOP TST Input Voltage Operating Junction Temperature Range Storage Temperature Range PD Power Dissipation, PD @ TA = 25ºC SOT25 Rating Unit +6 -40 to +125 -65 to +150 V ºC ºC 250 mW Recommended Operating Conditions Symbol Parameter VIN Input Voltage IOUT Output Current TA Operating Ambient Temperature AP131 Rev. 7 3 of 7 www.diodes.com Min Max Unit 2.7 5.5 V 0 300 mA -40 85 °C 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 Typ. Max Unit - 400 500 mV 350 450 - mA Dropout Voltage (Note 3) IL = 300mA ILIMIT Current Limit (Note 4) VIN = 5V, VOUT = 0V Ishort Short Circuit Current VOUT < 1.05V IOUT=1mA, VIN =( VOUT +1V ) to 5.5V IL = 1~300mA, VIN = 5V - 150 300 mA - 0.1 0.3 %/V - 30 35 mV IL = 1mA, VIN = 5V -2 - +2 - 50 150 % PPM/ ºC ΔVLINE Line Regulation ΔVLOAD Load Regulation (Note 5) ΔVOUT Output Voltage Accuracy Output Voltage Temperature Coefficient (Note 6) PSRR Ripple Rejection ISB - 60 - dB Standby Current F = 100Hz, CIN = 1μF, CO = 10uF, IL = 100mA IL = 0mA, VIN = 5V, EN = 0V - - 5 μA IQ Quiescent Current IL = 0mA, VIN = 5V, EN = 5V - 50 100 μA IEN Enable Pin Current - - < 0.1 μA 1.5 - VIN V 0 - 0.8 V - 8 - μS VENON VENOFF Notes: Min Enable Pin Voltage Output ON Output OFF CBP = 0.1μF, COUT = 1μF, IOUT = 30mA TDELAY Enable Delay Time θJA Thermal Resistance Junction-to-Ambient SOT25 (Note 7) 163 O θJC Thermal Resistance Junction-to-Case SOT25 (Note 7) 53 O C/W C/W 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<3V. 4. Current limit is measured at constant junction temperature by using pulsed testing with a low ON time. 5. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time. 6. Guaranteed by design. 7. Test conditions for SOT25: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout. AP131 Rev. 7 4 of 7 www.diodes.com FEBRUARY 2009 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 AP131 PSRR vs. Frequency AP131 Vout vs. Load Current 3.095 3.09 3.085 3.08 3.075 3.07 3.065 3.06 3.055 3.05 3.045 3.04 3.035 3.03 3.025 3.02 Vout PSRR (dB) Typical Characteristics 10 100 1K 10K 100K 0 1M 30 60 Frequency (Hz) AP131 GND Current vs. Input Voltage AP131 Dropout vs. Load 55 50 45 40 35 30 25 20 15 10 5 0 450 V OUT=3.3V 400 350 Dropout (V) GND Current (uA) 90 120 150 180 210 240 270 300 330 Load Current (uA) 300 250 200 150 100 50 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 0 50 100 Input Voltage (V) 150 200 250 300 Load (Io) (mA) Typical Application Circuit ON EN OFF AP131 EN IN VIN CIN 1uF AP131 Rev. 7 GND OUT BP CBP 0.1uF 5 of 7 www.diodes.com VOUT COUT 10uF FEBRUARY 2009 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Marking Information (1) SOT25 ( Top View ) 4 7 5 XX Y W X 1 2 Part Number AP131-15W AP131-18W AP131-20W AP131-25W AP131-28W AP131-29W AP131-30W AP131-33W AP131-35W Package Information AP131 Rev. 7 3 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : a~z : Lead Free A~Z : Green Package SOT25 SOT25 SOT25 SOT25 SOT25 SOT25 SOT25 SOT25 SOT25 Identification Code DA DD DF DK DN DO DP DS DU (All Dimensions in mm) 6 of 7 www.diodes.com FEBRUARY 2009 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AP131 Rev. 7 7 of 7 www.diodes.com FEBRUARY 2009 © Diodes Incorporated