AP139 300mA Low-Noise CMOS LDO Features General Descriptions - Very low dropout voltage - Low current consumption: Typ.45µA, Max. 60µA - Output voltage: 1.5V,1.8V,2.0V, 2.5V, 2.8V, 3.0V 3.3V, and 3.5V - Guaranteed 300mA output - Input range up to 7.0V - Thermal shutdown - Current limiting - Stability with low ESR capacitors - Low temperature coefficient - Pb-free package: SOT23-5L,TSOT23-5L The AP139 is a positive voltage linear regulator utilizing CMOS technology. The features that include low quiescent current (45µA typ.), low dropout voltage, and high output voltage accuracy, make it ideal for battery applications. EN input connected to CMOS has low bias current. The space-saving SOT23-5L and TSOT23-5L package is attractive for “Pocket” and “Hand Held” applications. This rugged device has both thermal shutdown, and current limit protections to prevent device failure under the “Worst” operating conditions. Applications In a low noise, regulated supply application, a 10nF capacitor is necessary to be placed in between Bypass and Ground. - Battery-powered devices - Personal communication devices - Home electric/electronic appliances - PC peripherals The AP139 is stable with a low ESR output capacitor of 1.0µF or greater. Pin Assignments Pin Descriptions (Top View) VOUT BYP 5 4 Pin Name VIN GND EN BYP VOUT AP139 1 2 Pin No. 1 2 3 4 5 Function Power Supply Ground Enable Pin Bypass Signal Pin Output 3 VIN GND EN SOT23-5/TSOT23-5 Ordering Information AP139 XX X X Output voltage Package Packing 15: 1.5V 18: 1.8V 20: 2.0V 25: 2.5V 28: 2.8V 30: 3.0V 33: 3.3V 35: 3.5V W : SOT23-5L TW:TSOT23-5L Blank: Tube A: Taping 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.1.1 Jun 02, 2006 1/8 AP139 300mA Low-Noise CMOS LDO Block Diagram VIN VOUT Current Limit 1uA Thermal Shutdown R1 EN - BYP AMP + Vref R2 GND Absolute Maximum Ratings Symbol VIN IOUT VOUT TA TJ Parameter Input Voltage Output Current Output Voltage ESD Classification Ambient Temperature Range Junction Temperature Range Rating +7 PD/ (VIN-VO) GND - 0.3 to VIN+ 0.3 B -40 to +85 -40 to +125 Unit V mA V Maximum 160 250 150 300 Unit ºC/W mW ºC ºC ºC ºC Thermal Information Symbol θjc PD TJ TLead Parameter Thermal Resistance Internal Power Dissipation (∆T=100 ºC) Maximum Junction Temperature Maximum Lead Temperature (10 sec) SOT23-5L SOT23-5L Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 2/8 AP139 300mA Low-Noise CMOS LDO Electrical Characteristics (TA=+25ºC, unless otherwise noted.) Symbol Parameter VIN Input Voltage IQ Quiescent Current ISTB Standby Current VOUT Min. Note 1 - Typ. 45 2.0 Max. 7 60 3.0 Unit V µA µA Output Voltage Accuracy IO=1mA, VIN=5V -2 - 2 % VOUT Temperature Coefficient - 50 - ppm/ oC 300 - 1.5 1.2 1 0.6 0.45 - mA 300 450 - mA 1.7 150 0.1 0.3 60 50 40 75 55 30 - 300 0.3 1 - mA % % - - 0.8 V - - <0.1 µA - 130 - o C - 20 - o C VDROPOUT Dropout Voltage IOUT Output Current ILIMIT Current Limit Test Conditions IO=0mA VIN=5.0V, VOUT=0V, VEN < VEL IO=1mA to 300mA, VOUT=VO(NOM)-1.5% VO =1.5V VO =1.8V VO =2V VO =2.5V VO ≥2.8V VOUT > 1.05V Ishort Short Circuit Current △VLINE Line Regulation △VLOAD Load Regulation PSRR PSRR VEH VEL IEN OTS OTH Vcc=5V,Vout<1.05V IOUT=5mA, VIN=5~7V IO=1mA to 300mA, VIN=5V f=1KHz I =100mA, Power Supply Rejection O f=10KHz CO=2.2µF ceramic f=100KHz f=1KHz IO=100mA, Power Supply Rejection CO=2.2µF ceramic, f=10KHz CBYP=20nF f=100KHz Output ON EN Input Threshold Output OFF Enable Pin Current Over Temperature Shutdown Over Temperature Hysteresis V dB dB V Note 1. : VIN(MIN)=VOUT+VDROPOUT Typical Application VOUT VIN IN OUT AP139 BYP C1 1uF C2 10nF GND EN C3 1uF Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 3/8 AP139 300mA Low-Noise CMOS LDO Typical Performance Characteristics Vcc Vs Quiescent Current 100 Vout Vs Dropout Voltage 1.6 1.4 80 70 Dropout Voltage (V) Quiescent Current (μA) 90 60 50 40 30 1.2 1 0.8 0.6 Io=300mA 0.4 20 TA=25℃ 10 0 3.5 4 4.5 5 5.5 6 6.5 Io=200mA 0.2 0 7 Io=100mA 1.5 1.8 2 Vcc (V) Iout=100mA -10 -20 -20 -30 -30 -40 -50 BP=1nF BP=5nF -60 3.3 3.5 BP=10nF 100mA -40 10mA -50 -60 1mA -70 -70 BP=10nF -80 -80 BP=20nF -90 1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04 -90 1.0E+00 1.0E+05 1.0E+06 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 Frequency (Hz) Frequency (Hz) Power Supply Rejection Ratio Vout Vs Current Limit 0 0.7 BP=0 -10 0.6 100mA -20 0.5 -40 Current Limit (A) -30 PSRR (dB) 3 Power Supply Rejection Ratio 0 PSRR (dB) PSRR (dB) -10 2.8 Vout (V) Power Supply Rejection Ratio 0 2.5 10mA -50 -60 1mA 0.4 0.3 0.2 -70 0.1 -80 -90 1.0E+00 Vcc=5V 0 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.5 1.0E+06 Frequency (Hz) 1.8 2 2.5 2.8 3 3.3 3.5 Vout (V) Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 4/8 AP139 300mA Low-Noise CMOS LDO Typical Performance Characteristics (Continued) Vcc Vs Short Current 400 350 Short Current (mA) 300 250 200 Top to bottom Vout=1.5V 150 Vout=1.8V 100 Vout=2.5V Vout=3.3V 50 0 3.5 4 4.5 5 5.5 6 6.5 7 Vcc (V) Function Description Enable The enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shut off, and all internal circuits are powered down. In this state, the quiescent current is less than 2µA. This pin behaves much like an electronic switch. The AP139 of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown. The P-channel pass transistor receives data from the error amplifier, over-current protection, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and thermal shutdown circuits become active when the junction temperature exceeds 130oC, or the current exceeds 300mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 110oC. External Capacitor The AP139 is stable with a low ESR output capacitor to ground of 1.0µF or greater. It can keep stable even with higher ESR capacitors. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be larger than 0.1µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground termination is desirable. The AP139 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 5/8 AP139 300mA Low-Noise CMOS LDO Marking Information 4 XX : Identification code (See Appendix) Y : Year: 0-9 M : Month: A~L XX Y M 1 Appendix Identification Code N0 N1 N2 N3 N4 N5 N6 N7 7 5 2 3 SOT23-5L 4 7 5 XX : Identification code (See Appendix) Y : Year: 0-9 M : Month: A~L XX Y M 1 2 Output version AP139-1.5V AP139-1.8V AP139-2.0V AP139-2.5V AP139-2.8V AP139-3.0V AP139-3.3V AP139-3.5V 3 TSOT23-5L Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 6/8 AP139 300mA Low-Noise CMOS LDO Package Information (1)Package Type: SOT23-5L HE E C D GAUGE PLANE θ L L1 e1 VIEW C e A SEE VIEW C A1 A2 θ1(4x) θ 2(4x) b(5x) Symbol Dimensions In Millimeters Nom. - Max. 1.35 Dimensions In Inches A Min. 1.05 Min. Nom. Max. 0.041 - 0.053 A1 0.05 - 0.15 0.002 - 0.006 A2 1.00 1.10 1.20 0.039 0.043 0.047 b 0.25 - 0.50 0.010 - 0.020 C 0.08 - 0.20 0.003 - 0.008 D 2.70 2.90 3.00 0.106 0.114 0.118 E 1.50 1.60 1.70 0.059 0.063 0.067 HE 2.60 2.80 3.00 0.102 0.110 0.118 L 0.30 - 0.60 0.012 - 0.024 L1 0.50 0.60 0.70 0.020 0.024 0.028 e 1.80 1.90 2.00 0.071 0.075 0.079 e1 0.85 0.95 1.05 0.033 0.037 0.041 θ θ1 θ2 0o o 3 6o 5o o 5 8o 10o o 7 10o 0o o 3 6o 5o o 5 8o 10o o 7 10o Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 7/8 AP139 300mA Low-Noise CMOS LDO Package Information (Continued) (2) Package Type: TSOT23-5L θ D L E E1 L1 R b e C L2 GAUGE PLANE A2 e1 A θ2 Symbol A 4xθ1 A1 y Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. 0.75 - 0.90 0.030 - 0.035 A1 0.00 - 0.10 0.000 - 0.004 A2 0.70 0.75 0.80 0.028 0.030 0.031 b 0.35 - 0.51 0.014 - 0.020 C 0.10 - 0.25 0.004 - 0.010 D 2.80 2.90 3.00 0.110 0.114 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 e 0.95 BSC. 0.037 e1 1.90 BSC. 0.075 L 0.37 - - 0.015 - L1 0.60 REF. 0.024 L2 0.25 BSC. 0.010 - y - - 0.10 - - 0.004 R 0.10 - - 0.004 - - - 8o θ θ1 θ2 o 0 - o 8 o 0 o o 7 NOM. o 5o NOM. 7 NOM. 5 NOM. Anachip Corp. www.anachip.com.tw Rev.1.1 Jun 02, 2006 8/8