AP131

AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN 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). 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. Ordering Information AP 131 - XX X X X Output Voltage 15 18 20 25 28 30 33 35 Note: Package Y : SOT89-5L W : SOT 25 Lead Free L : Lead Free Package G:Green (Note 2) Packing -7/-13 : Taping :1.5V :1.8V :2.0V :2.5V :2.8V :3.0V :3.3V :3.5V 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 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 -13 NA Lead-free Note: 3. 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 AP131 300mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Applications • • • • Battery Powered Device Wireless Communication CD-ROM, DVD, and LAN Card PC Peripheral Pin Description Name IN GND EN BP OUT Description Input Voltage Ground Enable Pin Band-gap Output Voltage Pin Assignment (Top View) EN GND IN 1 2 3 4 OUT 5 BP IN GND EN (Top View) 1 2 3 4 SOT25 BP 5 OUT SOT89-5L Block Diagram IN Error Amp OUT C urrent Limit EN Enable - + Bandgap 1.08V Thermal Shutdown BP GND 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 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 +6 -40 to +125 -65 to +150 500 250 +100 +250 Unit V ºC ºC mW mW ºC/W ºC/W ΘJA Electrical Characteristics TA = 25ºC, CIN = 1µF, COUT = 10µF, unless otherwise specified. Symbol VDROP ILIMIT Ishort ∆VLINE ∆VLOAD ∆VOUT Parameter Dropout Voltage (Note 4) Current Limit (Note 5) Short Circuit Current Line Regulation Load Regulation (Note 6) Output Voltage Accuracy Output Voltage Temperature Coefficient (Note7) Ripple Rejection Standby Current Quiescent Current Enable Pin Current Enable Pin Voltage Enable Delay Time Conditions 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 Min. 350 -2 - Typ. 400 450 150 0.1 30 50 60 50 8 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 PSRR ISB IQ IEN VENON VENOFF TDELAY 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 1.5 0 - 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