AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN General Description Features • • • • • • Input Voltage Range is up 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/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 and Green Package: SOT89-5L is available in Lead-Free only. SOT25 is available in both Lead-Free and Green (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. Ordering Information AP 131 - XX X X X Output Voltage 15 18 20 25 28 30 33 35 Note: Lead Free Packing Y : SOT89-5L W : SOT 25 L : Lead Free Package G:Green (Note 2) -7/-13 : Taping 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. 2. Green is only available for SOT 25. Device Lead-free Note: :1.5V :1.8V :2.0V :2.5V :2.8V :3.0V :3.3V :3.5V Package 3. AP131-XXY AP131-XXW Package Packaging Code (Note 3) Y W SOT89-5L SOT25 7” Tape and Reel Part Quantity Number Suffix NA 3000/Tape & Reel NA -7 13” Tape and Reel Part Quantity Number Suffix 2500/Tape & Reel NA 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. 1 1 of 7 www.diodes.com NOVEMBER 2006 © Diodes Incorporated -13 NA AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Pin Description Applications • • • • Name Battery Powered Device Wireless Communication CD-ROM, DVD, and LAN Card PC Peripheral Description IN Input Voltage GND Ground EN Enable Pin BP Band-gap OUT Output Voltage Pin Assignment (Top View) (Top View) EN 1 GND 2 IN 3 5 4 IN 1 GND 2 EN 3 BP OUT 5 OUT 4 BP SOT25 SOT89-5L Block Diagram IN OUT Current Limit EN - + Error Amp Enable Bandgap 1.08V Thermal Shutdown GND BP AP131 Rev. 1 2 of 7 www.diodes.com NOVEMBER 2006 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Absolute Maximum Ratings Symbol VCC TOP TST PD ΘJA Parameter Input Voltage Operating Junction Temperature Range Storage Temperature Range Power Dissipation, PD @ TA = 25ºC SOT89-5L SOT25 Package Thermal Resistance SOT89-5L SOT25 Rating Unit +6 -40 to +125 -65 to +150 V ºC ºC 500 250 mW mW +100 +250 ºC/W ºC/W Electrical Characteristics TA = 25ºC, CIN = 1µF, COUT = 10µF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit - 400 500 mV 350 450 - mA VDROP Dropout Voltage (Note 4) IL = 300mA ILIMIT Current Limit (Note 5) 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 ∆VLINE Line Regulation ∆VLOAD Load Regulation (Note 6) ∆VOUT Output Voltage Accuracy Output Voltage Temperature Coefficient (Note7) 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 TDELAY Enable Pin Voltage Enable Delay Time Output ON Output OFF CBP = 0.1µF, COUT = 1µF, IOUT = 30mA Note: 4. 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. 5. Current limit is measured at constant junction temperature by using pulsed testing with a low ON time. 6. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time. 7. Guaranteed by design. AP131 Rev. 1 3 of 7 www.diodes.com NOVEMBER 2006 © 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 AP131 Dropout vs. Load AP131 GND Current vs. Input Voltage 0.3 0.25 Dropout (V) GND Current (uA) 55 50 45 40 35 30 25 20 15 10 5 0 90 120 150 180 210 240 270 300 330 Load Current (uA) Frequency (Hz) 0.2 0.15 0.1 0.05 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Input Voltage (V) AP131 Rev. 1 0 50 100 150 200 250 300 350 Load (Io) (mA) 4 of 7 www.diodes.com NOVEMBER 2006 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Typical Application Circuit ON EN OFF AP131 IN VIN CIN 1uF GND EN VOUT OUT BP COUT 10uF CBP 0.1uF Marking Information (Top View) (Top View) XX Y M X 1 2 3 XX : Identification code Y : Year 0~9 M : Month A~L X : Blank : Lead Free Package G : Green Package SOT 25 XX Y M 1 2 XX : Identification code Y : Year: 0-9 M : Month: A~L 3 SOT89-5L Part Number SOT25 SOT89-5 AP131-15W AP131-15Y AP131-18W AP131-18Y AP131-20W AP131-20Y AP131-25W AP131-25Y AP131-28W AP131-28Y AP131-30W AP131-30Y AP131-33W AP131-33Y AP131-35W AP131-35Y AP131 Rev. 1 4 7 5 4 7 5 5 of 7 www.diodes.com Identification Code DA DD DF DK DN DP DS DU NOVEMBER 2006 © Diodes Incorporated AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Package Information (unit: mm) (1) Package Type: SOT89-5L (2) Package Type: SOT25 AP131 Rev. 1 6 of 7 www.diodes.com NOVEMBER 2006 © 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. 1 7 of 7 www.diodes.com NOVEMBER 2006 © Diodes Incorporated