AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Description Pin Assignments ( Top View ) NEW PRODUCT The AP7363 is a 1.5A adjustable output voltage linear regulator with ultra-low dropout. The device includes pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry. ADJ/NC OUTOUT OUT The characteristics of low dropout voltage and fast transient response to step changes in load make it suitable for low voltage microprocessor applications. The typical quiescent current is approximately 0.5mA and changes little with load current. The built-in current-limit and thermal-shutdown functions prevent IC from damage in fault conditions. 8 7 1 2 GND IN 6 5 3 4 IN IN U-DFN2030-8 (Top View ) This device is available in U-DFN2030-8, SO-8EP and SOT223-3L packages. Features GND 1 8 ADJ/NC IN 2 7 OUT • 1.5A ultra-low dropout linear regulator IN 3 6 OUT • Ultra-low dropout: 190mV at 1.5A IN 4 5 OUT • Stable with 10µF input/output capacitor, any types • Wide input voltage range: 2.7V to 5.5V SO-8EP • Adjustable output voltage: 0.6V to 5.0V • Fixed output options: 1V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V • Low ground pin current • 25nA quiescent current in shutdown mode • VADJ accuracy of ±1.5% @ 25°C • VADJ accuracy of ±3% over line, load and temperature • Excellent Load/Line Transient Response • Current limit and thermal shutdown protection • Ambient temperature range: -40ºC to 85ºC • U-DFN2030-8, SO-8EP, SOT223-3L: Available in “Green” Molding Compound (No Br, Sb) • Lead Free Finish/ RoHS Compliant (Note 1) (Top View) 3 OUT 2 GND (TAB) 1 IN SOT223-3L (Fixed output) Applications • • • • ASIC power supplies in printers, graphics cards, DVD players, STBs, routers, etc FPGA and DSP core or I/O power supplies SMPS regulator Conversion from 3.3Vor 5V rail Notes: 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. AP7363 Document number: DS35059 Rev. 2 - 2 1 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR NEW PRODUCT Typical Application Circuit ⎛ R ⎞ VOUT = VREF ⎜⎜1 + 1 ⎟⎟ where R 2 ≤ 10kΩ R2 ⎠ ⎝ Pin Descriptions Pin Name GND IN OUT Pin Number 1 2, 3, 4 5, 6, 7 ADJ 8 NC 8 No connection for fixed output version. -- The exposed pad (EP) is used to remove heat from the package and it is recommended that it is connected to a copper area. The die is electrically connected to the exposed pad. It is recommended to connect it externally to GND, but should not be the only ground connection. EP/TAB Description Ground. Voltage input pin. Voltage output pin. Output feedback pin for adjustable version only – a resistor divider from this pin to the OUT pin and ground sets the output voltage. Functional Block Diagram IN OUT Gate Driver EN Current Limit and Thermal Shutdown IN R OUT EN Gate Driver Current Limit and Thermal Shutdown ADJ 0.605V 0.605V R GND Fixed Version AP7363 Document number: DS35059 Rev. 2 - 2 GND Adjustable Version 2 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Absolute Maximum Ratings (Note 2) NEW PRODUCT Symbol Notes: Ratings Unit ESD HBM Human Body Model ESD Protection Parameter 2000 V ESD MM Machine Model ESD Protection 200 V VIN Input Voltage -0.3 to 6.0 V VOUT OUT Voltage -0.3V to VIN + 0.3 V IOUT Continuous Load Current TST Storage Temperature Range TJ Maximum Junction Temperature Internal Limited -65 to 150 °C 150 °C 2. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress Ratings only, and functional operation of the device at these or any other conditions beyond those indicated is not implied. Exposure to absolute-maximum rated conditions for extended periods may affect device reliability. Recommended Operating Conditions Symbol VIN IOUT TA TJ Notes: Parameter Input voltage Output Current Operating Ambient Temperature Operating Junction Temperature (Note 3) Min Max Unit 2.7 0 -40 -40 5.5 1.5 85 125 V A °C °C 3. Operating junction temperature must be evaluated and derated as needed, based on ambient temperature (TA), power dissipation (PD), maximum allowable operating junction temperature (TJ-MAX), and package thermal resistance (θJA). AP7363 Document number: DS35059 Rev. 2 - 2 3 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Electrical Characteristics o TA = 25 C, VIN = 3.3V, VOUT =1.8V, IOUT = 10mA, CIN = 10μF, COUT = 10μF, unless otherwise stated. Minimum and maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely o parametric norm at TA = 25 C, and are provided for reference purposes only. NEW PRODUCT Symbol Parameter VADJ ADJ Pin Voltage VADJ ADJ Pin Voltage (A Grade) IADJ ADJ Pin Bias Current VDropout Dropout Voltage (Note 4) ΔVOUT /ΔVIN Line Regulation (Note 5) ΔVOUT /ΔIOUT Load Regulation (Note 5) IGND IOUT-PK Ground Pin Current in Normal Operation Mode Peak Output Current Short Circuit Current ISC td(off) Turn-off delay td(on) Turn-on delay PSRR Ripple Rejection ρn(l/f) Output Noise Density en Output Noise Voltage TSHDN THYS Thermal shutdown threshold Thermal shutdown hysteresis θJA Thermal Resistance Junction-toAmbient θJC Thermal Resistance Junction-toCase Notes: Test Conditions TA = 25oC Over temp TA = 25oC Over temp TA = 25oC VIN = VIN-Min to VIN-Max Over temp TA = 25oC IOUT = 1.5A, VOUT = 2.5V Over temp TA = 25oC VIN = VIN-Min to VIN-Max Over temp TA = 25oC IOUT = 10mA to 1.5A Over temp TA = 25oC IOUT = 10mA to 1.5A Over temp VOUT ≥ VOUT-NOM -5% o TA = 25 C OUT grounded Over temp From VEN < VIL to VOUT = OFF, IOUT = 1.5A From VEN > VIH to VOUT = ON, IOUT = 1.5A VIN = 3.0V, IOUT = 1.5A, f = 120Hz VIN = 3.0V, IOUT = 1.5A, f = 1kHz F = 120Hz, COUT = 10μF ceramic BW = 100Hz – 100kHz, COUT = 10μF ceramic TJ rising TJ falling from TSHDN U-DFN2030-8-8 (Note 6) SO-8EP (Note 6) SOT223-3L (Note 6) U-DFN2030-8-8 (Note 6) SO-8EP (Note 6) SOT223-3L (Note 6) VIN = VIN-Min to VIN-Max, IOUT= 10mA to 1.5A VIN = VIN-Min to VIN-Max, IOUT= 10mA to 1.5A Min Typ. Max 0.584 0.605 0.626 0.575 0.635 0.596 0.605 0.614 0.587 0.623 50 750 190 240 280 0.04 0.05 0.18 0.33 1.0 1.2 1.3 3.6 3.7 2 Unit 25 μs 25 μs V V nA mV %/V %/A mA A A 65 61 1.0 μV/√Hz 100 μV(rms) 170 10 174.0 52.8 105.7 28.2 10.0 18.5 °C dB o C/W o C/W 4. Dropout voltage is the minimum voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. For any output voltage less than 2.5V, the minimum VIN operating voltage is the limiting factor. 5. The line and load regulation specification contains only the typical number. However, the limits for line and load regulation are included in the adjust voltage tolerance specification. 6. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper with minimum recommended pad layout. AP7363 Document number: DS35059 Rev. 2 - 2 4 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics Unless otherwise specified: TJ=25°C, VIN=2.7V, CIN=10μF, COUT=10μF, IOUT=10mA, VOUT=1.8V Noise Density Noise Density 10k COUT=10μF TANT NOISE(nV/ROOT-Hz) NOISE(nV/ROOT-Hz) COUT=10μF CER 1k 100 1k 100 10 10 100 1000 10k 100 100k 1000 10k 100k FREQUENCY(Hz) FREQUENCY(Hz) I GND vs Load Current Turn-on Characeristics 3 2 2.5 V OUT(V) 2 IGND (mA) NEW PRODUCT 10k 1.5 1 1 25°C 125°C 0.5 -40°C 0 0 0.5 1 1.5 0 0 ILOAD (A) AP7363 Document number: DS35059 Rev. 2 - 2 1 2 3 VIN (V) 5 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Dropout Voltage vs Load Current VADJ vs Temperature 0.615 0.3 DROPOUT VOLTAGE(V) NEW PRODUCT VADJ (V) 0.610 0.605 0.600 0.595 0.590 125°C 25°C 0.2 -40°C 0.1 0 -50 -25 0 25 50 75 100 125 TEMPERATURE(℃ ) Turn-on Time VIN=3.0V (2V/div) 1.5 VOUT=1.2V (500mV/div) IL=1.5A, COUT=10μF CER VIN=3.0V (2V/div) Time (10μs/div) Document number: DS35059 Rev. 2 - 2 0.5 1 LOAD CURRENT(A) Turn-on Time VOUT=1.2V (500mV/div) IL=0A, COUT=10μF CER AP7363 0 Time (10μs/div) 6 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Load Transient Response PSRR VIN=3.3V COUT=10μF CER 90 REJECTION RATIO(dB) 80 NEW PRODUCT VOUT=1.8V (50mV/div) 70 60 50 40 VIN=3.3V 30 VOUT=1.8V 20 IOUT=1A CIN=1μF CER ILOAD=100mA to 1.5A (1A/div) 10 COUT=1μF CER 0 0.1 1 10 100 1000 FREQUENCY(kHz) Time (40μs/div) Application Note Input Capacitor A minimum 2.2μF ceramic capacitor is recommended between IN and GND pins to decouple input power supply glitch and noise. The amount of the capacitance may be increased without limit. Larger input capacitor like 10μF will provide better load transient response. This input capacitor must be located as close as possible to the device to assure input stability and reduce noise. For PCB layout, a wide copper trace is required for both IN and GND pins. A lower ESR capacitor type allows the use of less capacitance, while higher ESR type requires more capacitance. Output Capacitor The output capacitor is required to stabilize and help the transient response of the LDO. The AP7362 is stable with any type of capacitor, with no limitations on minimum or maximum ESR. The device is designed to have excellent transient response for most applications with a small amount of output capacitance. The device is also stable with multiple capacitors in parallel, which can be of any type of value. Additional capacitance helps to reduce undershoot and overshoot during transient loads. This capacitor should be placed as close as possible to OUT and GND pins for optimum performance. The output voltage is calculated by: ⎛ R ⎞ VOUT = VREF ⎜ 1 + 1 ⎟ ⎜ R 2 ⎟⎠ ⎝ Where VREF=0.6V (the internal reference voltage) Rearranging the equation will give the following that is used for adjusting the output to a particular voltage: ⎛V ⎞ R1 = R 2 ⎜ OUT − 1⎟ ⎜V ⎟ ⎝ REF ⎠ Adjustable Operation The AP7362 provides output voltage from 0.6V to 5.0V through external resistor divider as shown below. To maintain the stability of the internal reference voltage, R2 need to be kept smaller than 10kΩ. AP7363 Document number: DS35059 Rev. 2 - 2 7 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Application Note (cont.) No Load Stability 120 80 60 LOOP GAIN(dB) 40 120 PHASE 100 80 GAIN 60 20 40 0 20 -20 -40 -60 -80 -100 0 VIN=2.7V VOUT=1.2V IL=0A COUT=10μF CER -20 -40 -60 -120 100 1k 10k 100k -80 1M FREQUENCY(Hz) Gain-Bandwidth Plot for no Load Short Circuit Protection 120 140 PHASE 120 80 60 100 GAIN 80 40 60 20 40 0 20 -20 -40 -60 -80 -100 0 VIN=2.7V VOUT=1.2V IL=1.5A COUT=10μF CER -120 100 1k 10k -20 -40 -60 100k -80 1M FREQUENCY(Hz) Gain-Bandwidth Plot for 1.5A Load AP7363 Document number: DS35059 Rev. 2 - 2 PHASE MARGIN( °) 100 LOOP GAIN(dB) NEW PRODUCT Stability and Phase Margin Any regulator which operates using a feedback loop must be compensated in such a way as to ensure adequate phase margin, which is defined as the difference between the phase shift and -180 degrees at the frequency where the loop gain crosses unity (0 dB). For most LDO regulators, the ESR of the output capacitor is required to create a zero to add enough phase lead to ensure stable operation. The AP7362 has a internal compensation circuit which maintains phase margin regardless of the ESR of the output capacitor, any type of capacitos can be used. Below two charts show the gain/phase plot of the AP7362 with an output of 1.2V, 10 μF ceramic output capacitor, delivering 1.5A load current and no load. It can be seen the phase margin is about 90° (which is very stable). 140 100 PHASE MARGIN( °) Other than external resistor divider, no minimum load is required to keep the device stable. The device will remain stable and regulated in no load condition. 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 prevent overcurrent and to protect the regulator from damage due to overheating. Thermal Shutdown Protection Thermal protection disables the output when the junction temperature rises to approximately +170°C, allowing the device to cool down. When the junction temperature reduces to approximately +160°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. Low Quiescent Current The AP7362, consuming only around 0.5mA for all input range, provides great power saving in portable and low power applications. 8 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Application Note (cont.) Output Noise NEW PRODUCT This is the integrated value of the output noise over a specified frequency range. Input voltage and output load current are kept constant during the measurement. Results are expressed in μVrms or μV √Hz. The AP7362 is a low noise regulator and needs no external noise reduction capacitor. Output voltage noise is typically 100μVrms overall noise level between 100 Hz and 100 kHz Noise is specified in two ways: Output noise density is the RMS sum of all noise sources, measured at the regulator output, at a specific frequency (measured with a 1Hz bandwidth). This type of noise is usually plotted on a curve as a function of frequency. Output noise voltage is the RMS sum of spot noise over a specified bandwidth. Spot noise is measured in units μV/√Hz or nV/√Hz and total output noise is measured in μV(rms). The primary source of noise in low-dropout regulators is the internal reference. Power Dissipation The device power dissipation and proper sizing of the thermal plane that is connected to the thermal pad is critical to avoid thermal shutdown and ensure reliable operation. Power dissipation of the device depends on input voltage and load conditions and can be calculated by: PD = (VIN - VOUT) X IOUT The maximum power dissipation, handled by the device, depends on the junction to ambient thermal resistance, and maximum ambient temperature, which can be calculated by the equation in the following: PD _ max = ( +150°C - TA ) R θJA Ordering Information AP 7363 - XX XX - X Output Blank 10 12 15 18 25 33 Device : : : : : : : ADJ 1.0V 1.2V 1.5V 1.8V 2.5V 3.3V Package Code AP7363-XXHA-7 AP7363-XXSP-13 AP7363-XXE-13 Notes: HA SP E Package Packing HA : U-DFN2030-8 SP : SO-8EP E : SOT223-3L 7/13 : Tape & Reel Packaging (Note 7 & 8) U-DFN2030-8 SO-8EP SOT223-3L 7”/13” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 2500/Tape & Reel -13 2500/Tape & Reel -13 7. SOT223-3L is only available with fixed output version. 8. 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. AP7363 Document number: DS35059 Rev. 2 - 2 9 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Marking Information (1) U-DFN2030--8 ( Top View ) 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 : G : Green NEW PRODUCT XX Y WX Device AP7363ADJ AP7363-10 AP7363-12 AP7363-15 AP7363-18 AP7363-25 AP7363-33 Package U-DFN2030-8 U-DFN2030-8 U-DFN2030-8 U-DFN2030-8 U-DFN2030-8 U-DFN2030-8 U-DFN2030-8 Identification Code SA SB SC SD SE SF SG (2) SO-8EP ( Top View ) 8 5 Logo Part Number AP7363 for ADJ AP7363-10 for 1.0V AP7363-12 for 1.2V AP7363-15 for 1.5V AP7363-18 for 1.8V AP7363-25 for 2.5V AP7363-33 for 3.3V AP7363 Document number: DS35059 Rev. 2 - 2 AP7363-VV YY WW X X E 1 YY : Year : 08, 09,10~ WW : Week : 01~52; 52 represents 52 and 53 week X : Internal code SO-8-EP G : Green 4 10 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Marking Information (continued) (3) SOT223-3L ( Top View ) Logo Part Number 63 for ADJ 63-VV:10 for 1.0V 12 for 1.2V 15 for 1.5V 18 for 1.8V 25 for 2.5V 33 for 3.3V NEW PRODUCT Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z repersents 52 and 53 week X : G : Green YWX 6 3-VV Package Outline Dimensions (All Dimensions in mm) 0.15Typ. (1) Package Type: U-DFN2030-8 0.08 C 1.95/2.05 A 2.95/3.05 1.50/1.70 (Pin #1 ID) CL 8x-0.60 C B 8x-0.30 6x-0.50 Side View CL CL CL 2.60 2X- 0.25 A 0/0.05 Seating Plane 0.57/0.63 8X- 2.60 0.10 C 1.70 TOP MARK Pin1 1.40/1.60 1.60 Land Pattern Recommendation (Unit: mm) Top View 0.25 B 8X0.30/0.60 2X- AP7363 Document number: DS35059 Rev. 2 - 2 0.50Typ. 0.20/0.30 0.10 C A B Bottom View 11 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Package Outline Dimensions (All Dimensions in mm) (cont.) (2) Package Type: SO-8EP Detail "A" Exposed pad 2.4Ref. 3.70/4.10 45° 0.35max. 3.85/3.95 5.90/6.10 7°~9° NEW PRODUCT 7°~9° 1 1 0.15/0.25 Bottom View 1.75max. 1.30/1.50 3.3Ref. 0/0.13 0.254 0.3/0.5 1.27typ 4.85/4.95 1 Gauge Plane Seating Plane 0.62/0.82 Detail "A" 8x-0.60 5.4 Exposed pad 8x-1.55 6x-1.27 Land Pattem Recommendation (Unit:mm) (3) Package Type: SOT223-3L Notes: 9. Coplanarity applies to the exposed heat sink slug as well as the terminals. AP7363 Document number: DS35059 Rev. 2 - 2 12 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-LOW DROPOUT LINEAR REGULATOR Taping Orientation (Note 10) Tape Dimension and Orientation: (Dimensions in mm) U-DFN2030-8 DFN2030-8 NEW PRODUCT 3.90 4.10 1.50 1.60 3.90 4.10 1.65 1.85 3.45 3.55 XX YWX Pin#1 XX YWX XX YWX XX YWX 7.90 8.30 Direction of Feed Note: 10. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf AP7363 Document number: DS35059 Rev. 2 - 2 13 of 14 www.diodes.com July 2011 © Diodes Incorporated AP7363 1.5A, LOW QUIESCENT CURRENT, FAST TRANSIENT ULTRA-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). NEW PRODUCT Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. 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