AP7313

AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Features • • • • • • • • • • • • • • • 150mA Low Dropout Regulator in 3-pin package Very low IQ over full load: 65µA Wide input voltage range: 2V to 6V Fixed output options: 1.0V to 3.3V PSRR: 65dB at 100Hz Fast start-up time: 80µs Stable with low ESR, 1µF ceramic output capacitor Excellent Load/Line Transient Response Low dropout: 150mV typical at 150mA Current limit protection Short circuit protection Thermal shutdown protection Ambient temperature range: -40ºC to 85°C SOT23 and SOT23R: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) Description The AP7313 is a 150mA, fixed output voltage, low dropout linear regulator. The device included pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry. The characteristics of low dropout voltage and low quiescent current make it suitable for low power applications, for example, battery powered devices. The typical quiescent current is approximately 65μA. Built-in current-limit and thermal-shutdown functions prevent IC from damage in fault conditions. The AP7313 is available in SOT23 package with different pin-outs. Applications • • • • Notebook and Desktop Computers and Pheripherals Portable Devices Battery Powered Devices CD-ROM, DVD and LAN Cards Typical Application Circuit VIN IN AP7313 1uF GND OUT VOUT 1uF AP7313 Rev. 2 1 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Ordering Information AP7313 - XX XX G - 7 Output 10 : 1.0V 12 : 1.2V 15 : 1.5V 18 : 1.8V 20 : 2.0V 25 : 2.5V 28 : 2.8V 30 : 3.0V 33 : 3.3V Package SA : SOT23 SR : SOT23R Green Packing 7 : Tape & Reel G : Green Device AP7313-XXSAG-7 AP7313-XXSRG-7 Notes: Package Code SA SR Packaging (Note 2) SOT23 SOT23R 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. Pin Assignment (1) SOT23 (1) SOT23R ( Top View ) IN 1 3 GND OUT 2 OUT 2 ( Top View ) GND 1 3 IN AP7313 Rev. 2 2 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Pin Descriptions Pin Number SOT23 SOT23R 1 2 3 3 2 1 Pin Name IN OUT GND Description Voltage input pin. Bypass to ground through at least 1µF capacitor Voltage output pin. Bypass to ground through 1µF ceramic capacitor Ground Functional Block Diagram IN C urre nt Lim it and T herm a l S hutdow n OUT G ate D river R V REF R GND AP7313 Rev. 2 3 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Absolute Maximum Ratings Symbol ESD HBM ESD MM VIN TOP TST PD TJ Parameter Human Body Model ESD Protection Machine Model ESD Protection Input Voltage Continuous Load Current Operating Junction Temperature Range Storage Temperature Range SOT23 Power Dissipation (Note 3) SOT23R Maximum Junction Temperature Ratings 6 400 7 Internal Limited -40 ~ 125 -65 ~150 600 540 150 Units kV V V °C °C mW mW °C Recommended Operating Conditions Symbol VIN IOUT TA Notes: Parameter Input voltage Output Current (Note 4) Operating Ambient Temperature Min 2 0 -40 Max 6 150 85 Unit V mA °C 3. Ratings apply to ambient temperature at 25°C 4. The device maintains a stable, regulated output voltage without a load current. AP7313 Rev. 2 4 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Electrical Characteristics (TA = 25 C, VIN = VOUT +1V, CIN = 1uF, COUT = 1uF, unless otherwise stated) o Symbol IQ VDropout VOUT Parameter Input Quiescent Current Dropout Voltage (Note 5) Output Voltage Accuracy ΔVOUT Line Regulation /ΔVIN/V ΔVOUT Load Regulation /VOUT tST PSRR ISHORT ILIMIT TSHDN THYS θJA Notes: Start-up Time PSRR Short-circuit Current Current limit Thermal shutdown threshold Thermal shutdown hysteresis Thermal Resistance Junction-to-Ambient Test Conditions Min IOUT = 0mA ⎯ IOUT = 150mA IOUT = 150mA TA = -40oC to 85oC, -2 IOUT = 30mA VIN = (VOUT +1V) to VIN-Max, IOUT = 1mA VIN = (VOUT +1V) to VIN-Max, -0.6 IOUT from 1mA to 150mA VEN = 0V to 2.0V, VOUT = 1.8V IOUT = 150mA VIN = [VOUT +1V]VDC + 0.5VppAC, f = 100Hz, IOUT = 30mA VIN = VIN-Min to VIN-Max, VOUT < 0.2V VIN = (VOUT +1V) to VIN-Max, 200 VOUT/ROUT = 0.5A Typ. Max Unit 55 75 μA 65 85 150 300 mV 2 % 0.01 0.20 %/V 0.6 80 65 50 300 140 15 207 230 % μs dB mA mA °C °C o C/W o C/W SOT23 (Note 6) SOT23R (Note 6) 5. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. This parameter only applies to output voltages above 1.8V. 6. Test conditions for SOT23 and SOT23R: Device mounted on FR-4 substrate PCB, with minimum recommended pad layout, 2oz copper, single sided. AP7313 Rev. 2 5 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Typical Performance Characteristics Quiescent Current vs Input Voltage Iload=150mA 60 60 Quiescent Current vs Input Voltage Iload=0mA Vout=1.8V 56 56 Quiescent Current (uA) Vout=1.8V Quiescent Current (uA) 90℃ 52 52 90℃ 48 48 25℃ 44 -45℃ 44 25℃ 40 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 6 40 2.8 3.2 3.6 4 4.4 4.8 -45℃ 5.2 5.6 6 Input Voltage (V) Input Voltage (V) Line Regulation (%/V) 0.06 2.4 Load Regulation (%) Vout=1.8V Vin=Vout +1V Output Voltage Variation (%) Output Voltage Variation (%) 0.05 0.04 0.03 0.02 0.01 0 2.8 Vout=1.8V Vin=Vout +1V 90℃ 25℃ -45℃ 2 1.6 1.2 0.8 0.4 0 -0.4 -45℃ 90℃ 25℃ 3.2 3.6 4 4.4 4.8 5.2 5.6 6 0 30 Input Voltage (V) Output Current (mA) 60 90 120 150 Dropout Voltage 200 55 Short Circuit vs Input Voltage Vout=2.5V 160 90℃ Output Current (mA) 50 Vout=1.8V -45℃ Dropout Voltage (mV) 120 25℃ 45 80 40 -45℃ 40 25℃ 35 90℃ 0 0 25 50 75 100 125 150 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 6 Output Current (mA) Input Voltage (V) AP7313 Rev. 2 6 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Typical Performance Characteristics (Continued) Current Limit vs Input Voltage 310 PSRR 80 75 70 Current Limit (mA) 305 Vout=1.8V Ta=25℃ PSRR (dB) 65 60 55 50 45 40 Vout=1.8V Vin=2.8V Cin=Cout=1uF Ta=25℃ 300 295 290 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 6 35 0.1 1 10 100 Input Voltage (V) Frequency (kHz) PSRR 80 75 70 65 60 55 50 45 40 35 0.1 1 10 100 80 PSRR Vout=2.5V Vin=3.5V Cin=Cout=1uF Ta=25℃ 75 70 65 PSRR (dB) PSRR (dB) Vout=3.3V Vin=4.3V Cin=Cout=1uF Ta=25℃ 60 55 50 45 40 35 0.1 1 10 100 Frequency (kHz) Frequency (kHz) AP7313 Rev. 2 7 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Typical Performance Characteristics Line Transient Response Vin=4.3V to 5.3V (1V/div) Tr=15us (Continued) Line Transient Response Vin=5.3V to 4.3V (1V/div) Tf=15us Vout=3.3V (100mV/div) Vout=3.3V (100mV/div) Iout=150mA (150mA/div) Iout=150mA (150mA/div) Time (50us/div) Load Transient Response Tr=Tf=15us Vin=3.5V Vout=2.5V (100mV/div) Tr=Tf=15us Vin=4.3V Time (50us/div) Load Transient Response Vout=3.3V (100mV/div) Iout=1mA to 150mA (50mA/div) Iout=1mA to 150mA (50mA/div) Time (50us/div) Time (50us/div) AP7313 Rev. 2 8 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Typical Performance Characteristics Start-Up Time (No Load) (Continued) Start-Up Time (150mA Load) Vin=0 to 4.3V (1V/div) Cin =Cout=1uF Vin=0 to 4.3V (1V/div) Cin =Cout=1uF Vout=3.3V (1.5V/div) Vout=3.3V (1.5V/div) Iout=150mA (150mA/div) Time (50us/div) Time (50us/div) Application Note AP7313 Rev. 2 9 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Input Capacitor A 1μF ceramic capacitor is recommended to connect between VIN and GND pins to decouple input power supply glitch and noise. The amount of the capacitance may be increased without limit. This input capacitor must be located as close as possible to the device to assure input stability and less noise. For PCB layout, a wide copper trace is required for both VIN and GND. A lower ESR capacitor allows the use of less capacitance, while higher ESR type requires more capacitance. to cool down. When the junction temperature reduces to approximately +125°C the output circuitry is enabled again. Depending on power dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the heat dissipation of the regulator, protecting it from damage due to overheating. Ultra Fast Start-up After turned on, the AP7313 is able to provide full power in as little as tens of microseconds, typically 80µs, without sacrificing low ground current. This feature will help load circuitry move in and out of standby mode in real time, eventually extend battery life for mobile phones and other portable devices. Output Capacitor The output capacitor is required to stabilize and help transient response for LDO. The AP7313 is stable with very small ceramic output capacitors. The recommended capacitance is from 1μF to 4.7μF, Equivalent Series Resistance (ESR) is from 10mΩ to 200mΩ, and temperature characteristic is X7R or X5R. Higher capacitance values help to improve load/line transient response. The output capacitance may be increased to keep low undershoot/overshoot. Place output capacitor as close as possible to OUT and GND pins, and keep the leads as short as possible. Fast Transient Response Fast transient response LDOs can also extend battery life. TDMA-based cell phone protocols such as Global System for Mobile Communications (GSM) have a transmit/receive duty factor of only 12.5 percent, enabling power savings by putting much of the baseband circuitry into standby mode in between transmit cycles. In baseband circuits, the load often transitions virtually instantaneously from 100µA to 100mA. To meet this load requirement, the LDO must react very quickly without a large voltage drop or overshoot — a requirement that cannot be met with conventional, general-purpose LDOs. The AP7313’s fast transient response from 0 to 150mA provides stable voltage supply for fast DSP and GSM chipset with fast changing load. No Load Stability No minimum load is required to keep the device stable. The device will remain stable and regulated in no load condition. Current Limit Protection When output current at OUT pin is higher than current limit threshold, the current limit protection will be triggered and clamp the output current to approximately 300mA to prevent over-current and to protect the regulator from damage due to overheating. Small Overshoot and Undershoot The AP7313 has small and controlled overshoot and undershoot in load and line transitions. This helps to protect supplied circuit from damage and operation error caused by glitches. This feature also permits the usage of small value output decoupling capacitor with AP7313. Short Circuit Protection When OUT pin is short-circuit to GND or OUT pin voltage is less than 200mV, short circuit protection will be triggered and clamp the output current to approximately 50mA. This feature protects the regulator from over-current and damage due to overheating. Low Quiescent Current The AP7313, consuming only around 65µA for all input range and output loading, provides great power saving in portable and low power applications. Thermal Shutdown Protection Thermal protection disables the output when the junction temperature rises to approximately +140°C, allowing the device Wide Output Options The AP7313, with multiples of fixed output voltage options, provides a versatile LDO solution for many portable applications. Marking Information AP7313 Rev. 2 10 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator (1) SOT23 and SOT23R ( Top View ) 3 XX Y W X 1 2 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 : Green Device AP7313-10SA AP7313-12SA AP7313-15SA AP7313-18SA AP7313-20SA AP7313-25SA AP7313-28SA AP7313-30SA AP7313-33SA AP7313-10SR AP7313-12SR AP7313-15SR AP7313-18SR AP7313-20SR AP7313-25SR AP7313-28SR AP7313-30SR AP7313-33SR Package SOT23 SOT23 SOT23 SOT23 SOT23 SOT23 SOT23 SOT23 SOT23 SOT23R SOT23R SOT23R SOT23R SOT23R SOT23R SOT23R SOT23R SOT23R Identification Code NR NS NT NU NV NW NX NY NZ SA SB SC SD SE SF SG SH SJ Package Information (All Dimensions in mm) AP7313 Rev. 2 11 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator (1) Package Type: SOT23 and SOT23R AP7313 Rev. 2 12 of 13 www.diodes.com NOVEMBER 2009 © Diodes Incorporated AP7313 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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