AP131 300mA Low Dropout Linear Regulator with Shutdown Features General Descriptions - Input voltage range is up to 7V - 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 2% accuracy, and 1.5V to 5V with 0.1V step - Active low shutdown function (EN pin). - Fast transient response - Good load regulation - Current limit and thermal shutdown protection - SOT89-5L and SOT23-5L packages 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 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 application, for example, some battery powered devices. The typical quiescent current is approximately 50µA from zero to maximum load. Due to internal flexible design, result in extensively fixed output voltage versions and make 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 - Wireless Communication - Battery Powered device - CD-ROM, DVD, and LAN Card - PC peripheral Pin Assignments Pin Descriptions (Top View) EN 1 GND 2 IN 3 5 Name IN BP GND EN 4 OUT BP OUT SOT89-5L Description Input voltage Ground Enable pin Bandgap Output voltage (Top View) IN 1 GND 2 EN 3 5 OUT 4 BP SOT23-5L This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 1.2 Oct 28, 2004 1/7 AP131 300mA Low Dropout Linear Regulator with Shutdown Ordering Information AP131 XX X X X Output voltage 15: 1.5V ~ 25: 2.5V Package Y : SOT89-5L W: SOT23-5L Lead Free Packing Blank : Normal L : Lead Free Package Blank:Tube A : Taping ~ 50: 5.0V Block Diagram IN OUT Current Limit EN - + Error Amp Enable Bandgap 1.08V Thermal Shutdown GND BP 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 SOT23-5L Package thermal resistance SOT89-5L SOT23-5L Anachip Corp. www.anachip.com.tw Rating Unit -0.1 to +7 -40 to +125 -65 to +150 V ºC ºC +0.5 +0.25 W W +100 +250 ºC/W ºC/W Rev. 1.2 2/7 Oct 28, 2004 AP131 300mA Low Dropout Linear Regulator with Shutdown Electrical Characteristics TA=25ºC, CIN=1µF, COUT=10µF, unless otherwise specified. Symbol VDROP ILIMIT Parameter Dropout voltage (Note 1) Conditions Min. Typ. Max. Unit - 400 500 mV IL=300mA Current Limit (Note 2) VIN=5V, VOUT=0V 350 450 - mA ∆VLINE Line regulation IL=1mA, VIN=5~7V - 0.1 0.3 %/V ∆VLOAD Load regulation (Note 3) IL=1~300mA, VIN=5V - 30 35 mV Output voltage accuracy Output voltage temperature coefficient (Note 4) IL=1mA, VIN=5V -2 - +2 % ∆VOUT - 50 150 PPM/ºC PSRR Ripple Rejection - 60 - dB ISB 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 VENON VENOFF TDELAY Enable pin voltage Enable delay time Output ON - - < 0.1 µA 1.5 - VIN V 0 - 0.8 V - 8 - µS Output OFF CBP=0.1µF, COUT=1µF, IOUT=30mA Note 1. 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. Note 2. Current limit is measured at constant junction temperature by using pulsed testing with a low ON time. Note 3. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time. Note 4. Guaranteed by design. Typical Application Circuit ON EN OFF AP131 EN IN VIN CIN 1uF OUT BP GND CBP 0.1uF Anachip Corp. www.anachip.com.tw VOUT COUT 10uF Rev. 1.2 3/7 Oct 28, 2004 AP131 300mA Low Dropout Linear Regulator with Shutdown AP131 PSRR V.S. Frequency 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 GND Current (uA) PSRR (dB) Typical Characteristics 10 100 1K 10K 100K 55 50 45 40 35 30 25 20 15 10 5 0 AP131 GND Current V.S. Input Voltage 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 1M Input Voltage (V) Frequency (Hz) GND Current V.S. Input Voltage AP131 Dropout V.S. Load AP131 Vout V.S. 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 0.3 0.25 Dropout (V) Vout (V) PSRR V.S. Frequency 0.2 0.15 0.1 0.05 0 0 30 60 0 90 120 150 180 210 240 270 300 330 Load Current (uA) 50 100 150 200 250 300 350 Load (Io) (mA) Dropout V.S. Load Vout V.S. Load Current Anachip Corp. www.anachip.com.tw Rev. 1.2 4/7 Oct 28, 2004 AP131 300mA Low Dropout Linear Regulator with Shutdown Marking Information (Top View) 5 Identification code (See appendix) 4 XX Y M X 1 2 3 Blank: normal L: Lead Free Package Month: A~L Year:0~9 SOT23-5L (Top View) 5 Identification code (See appendix) 4 XX Y MX 1 2 3 Blank: normal L: Lead Free Package Month: A~L Year: 0~9 SOT89-5L Appendix Part Number Part Number SOT23 SOT89 Identification code SOT23 SOT89 Identification code AP131-15W AP131-15Y DA AP131-33W AP131-33Y DS AP131-16W AP131-16Y DB AP131-34W AP131-34Y DT AP131-17W AP131-17Y DC AP131-35W AP131-35Y DU AP131-18W AP131-18Y DD AP131-36W AP131-36Y DV AP131-19W AP131-19Y DE AP131-37W AP131-37Y DW AP131-20W AP131-20Y DF AP131-38W AP131-38Y DX AP131-21W AP131-21Y DG AP131-39W AP131-39Y DY AP131-22W AP131-22Y DH AP131-40W AP131-40Y DZ AP131-23W AP131-23Y DI AP131-41W AP131-41Y D0 AP131-24W AP131-24Y DJ AP131-42W AP131-42Y D1 AP131-25W AP131-25Y DK AP131-43W AP131-43Y D2 AP131-26W AP131-26Y DL AP131-44W AP131-44Y D3 AP131-27W AP131-27Y DM AP131-45W AP131-45Y D4 AP131-28W AP131-28Y DN AP131-46W AP131-46Y D5 AP131-29W AP131-29Y DO AP131-47W AP131-47Y D6 AP131-30W AP131-30Y DP AP131-48W AP131-48Y D7 AP131-31W AP131-31Y DQ AP131-49W AP131-49Y D8 AP131-32W AP131-32Y DR AP131-50W AP131-50Y D9 Anachip Corp. www.anachip.com.tw Rev. 1.2 5/7 Oct 28, 2004 AP131 300mA Low Dropout Linear Regulator with Shutdown Package Information (1) Package Type: SOT89-5L A C 1.7 4.6 0.4 F 1.1 1.2 B E F 0.5 D 0.55 I 1.5 Land Pattern Recommendation (Unit: mm) H L K J G Symbol A B C D E F G H I J K L Dimensions In Millimeters Min. Nom. Max. 4.40 4.50 4.60 4.05 4.15 4.25 1.50 1.60 1.70 1.30 1.40 1.50 2.40 2.50 2.60 0.80 3.00 Ref. 1.50 Ref. 0.40 0.46 0.52 1.40 1.50 1.60 0.35 0.39 0.43 5o Typ. Anachip Corp. www.anachip.com.tw Dimensions In Inches Min. Nom. Max. 0.173 0.177 0.181 0.159 0.163 0.167 0.059 0.063 0.067 0.051 0.055 0.059 0.094 0.098 0.102 0.031 0.118 Ref. 0.059 Ref. 0.016 0.018 0.020 0.055 0.059 0.063 0.014 0.015 0.017 5o Typ. Rev. 1.2 6/7 Oct 28, 2004 AP131 300mA Low Dropout Linear Regulator with Shutdown Package Information (Continued) (2) Package Type: SOT23-5L D e1 θ 1(4x) 4 5 E1 A E 0.10 C 5x A2 Seating Plane A1 1 2 θ 2(4x) 3 b e With Plating b1 C C1 Gauge Plane 0.25 mm θ Base Metal L b Symbol L1 Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. A 1.05 1.20 1.35 0.041 0.047 0.053 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 1.00 1.10 1.20 0.039 0.043 0.047 b 0.25 - 0.55 0.010 - 0.022 b1 0.25 0.40 0.45 0.010 0.016 0.018 c 0.08 - 0.20 0.003 - 0.008 c1 0.08 0.11 0.15 0.003 0.004 0.006 D 2.70 2.85 3.00 0.106 0.112 0.118 E 2.60 2.80 3.00 0.102 0.110 0.118 E1 1.50 1.60 1.70 0.059 0.063 0.067 L 0.35 0.45 0.55 0.014 0.018 0.022 L1 0.60 Ref. 0.024 Ref. e 0.95 Bsc. 0.037 Bsc. e1 θ 0o 1.90 Bsc. 5o 10o 0o 0.075 Bsc. 5o 10o θ1 3o 5o 7o 3o 5o 7o θ2 6o 8o 10o 6o 8o 10o Anachip Corp. www.anachip.com.tw Rev. 1.2 7/7 Oct 28, 2004