AP7332

AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Description The AP7332 is 300mA, dual fixed output voltage, low dropout linear regulator. The AP7332 includes the pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry which protect the IC from damage in fault conditions. The AP7332 has two enable pins (EN1 and EN2) to independently turn the respective channel on when a logic high level is applied. The characteristics of low dropout voltage and low quiescent current make it suitable for low power applications. The typical quiescent current is approximately 60μA. This device is available with fixed output options of 1.0V/1.0V, 1.0V/3.3V, 1.2V/1.8V, 1.2V/3.3V, 1.5V/2.8V, 1.5V/3.0V, 1.5V/3.3V, 1.8V/2.8V, 1.8V/3.0V, 1.8V/3.3V, 2.5V/3.0V, 2.8V/3.3V and 3.3V/3.3V. For other output options please contact our local sales representative directly or through our distributor located in your area. The AP7332 is available in SOT26 and DFN2018-6 packages. Pin Assignments (Top View) OUT2 1 GND 2 EN2 3 6 OUT1 5 IN 4 EN1 N EW PRODUCT SOT26 (Top View) IN EN1 EN2 1 2 3 6 5 4 OUT1 OUT2 GND Features • • • • • • • • • • • • • • • 300mA Low Dropout Regulator with EN Very low IQ: 60µA Wide input voltage range: 2V to 6V Fixed output options: 1.0V to 3.3V High PSRR: 65dB at 1kHz Fast start-up time: 60µs Stable with low ESR, 1µF ceramic output capacitor Excellent Load/Line Transient Response Low dropout: 300mV at 300mA Current limit protection Short circuit protection Thermal shutdown protection Ambient temperature range: -40ºC to 85°C SOT26 and DFN2018-6: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) DFN2018-6 Applications • • • • • Cellular Phones Smart Phones, PDAs MP3/MP4 Bluetooth head set Low power application Note: 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. AP7332 Document number: DS35132 Rev. 1 - 2 1 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Application Circuit VIN VIN VOUT1 1uF VOUT1 1uF VOUT2 EN1 VOUT2 ON OFF 1uF EN2 GND N EW PRODUCT ON OFF Pin Descriptions Pin Name OUT2 GND EN2 EN1 IN OUT1 Pin Number SOT26 1 2 3 4 5 6 DFN2018-6 5 4 3 2 1 6 Description Voltage output 2. Bypass to ground through 1µF ceramic capacitor Ground Enable input 2, active high Enable input 1, active high Voltage input. Bypass to ground through at least 1µF capacitor Voltage output 1. Bypass to ground through 1µF ceramic capacitor AP7332 Document number: DS35132 Rev. 1 - 2 2 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Functional Block Diagram IN Current Limit and Short Circuit OUT 1 EN 1 Gate Driver N EW PRODUCT Bandgap Thermal Shutdown GND EN 2 Gate Driver Current Limit and Short Circuit OUT 2 AP7332 Document number: DS35132 Rev. 1 - 2 3 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Absolute Maximum Ratings Symbol ESD HBM ESD MM VIN Parameter Human Body Model ESD Protection Machine Model ESD Protection Input Voltage OUT, EN Voltage Continuous Load Current TOP Operating Junction Temperature Range Storage Temperature Range Power Dissipation (Note 3) Maximum Junction Temperature SOT26 DFN2018-6 Ratings 8 400 6.5 VIN + 0.3 Internal Limited -40 ~ 125 -65 ~150 950 2200 150 °C °C mW mW °C Unit kV V V V N EW PRODUCT TST PD TJ Recommended Operating Conditions Symbol VIN IOUT TA Notes: Parameter Input voltage Output Current (Note 3) Operating Ambient Temperature Min 2 0 -40 Max 6 300 85 Unit V mA °C 2. Ratings apply to ambient temperature at 25°C. 3. The device maintains a stable, regulated output voltage without a load current. AP7332 Document number: DS35132 Rev. 1 - 2 4 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Electrical Characteristics (TA = 25 C, VIN = VOUT +1V, CIN = 1uF, COUT = 1uF, VEN = VIN , unless otherwise stated) Symbol Parameter Test Conditions ADJ Reference Voltage IOUT= 0mA VREF (Adjustable version) ADJ Leakage (Adjustable version) IADJ o o TA = -40 C to 85 C, Output Voltage Accuracy VOUT IOUT = 10% of IOUT-Max VIN = (VOUT +1V) to VIN-Max, ΔVOUT /ΔVIN/V Line Regulation VEN = VIN, IOUT = 1mA VIN = (VOUT +1V) to VIN-Max, ΔVOUT /VOUT Load Regulation IOUT = 1mA to 300mA VOUT < 2.5V, IOUT = 300mA Dropout Voltage (Note 4) VDropout VOUT ≥ 2.5V, IOUT = 300mA Input Quiescent Current (2 channels) VEN = VIN, IOUT = 0mA IQ Input Shutdown Current VEN = 0V, IOUT = 0mA ISHDN Input Leakage Current VEN = 0V, OUT grounded ILEAK VEN = 0V to 2.0V in 1μs, Start-up Time tST IOUT = 300mA VIN = [VOUT +1V]VDC + 0.5VppAC, f = PSRR (Note 5) PSRR 1kHz, IOUT = 50mA VIN = VIN-Min to VIN-Max, Short-circuit Current ISHORT VOUT = 1/4 target VOUT VIN = VIN-Min to VIN-Max, Current limit ILIMIT VOUT/ROUT = 1A EN Input Logic Low Voltage VIN = VIN-Min to VIN-Max VIL EN Input Logic High Voltage VIN = VIN-Min to VIN-Max VIH EN Input Current VIN = 0V or VIN-Max IEN Thermal shutdown threshold TSHDN Thermal shutdown hysteresis THYS SOT26 (Note 6) Thermal Resistance Junction-to-Ambient θJA DFN2018-6 (Note 7) Notes: o Min Typ. 0.8 0.1 Max Unit V 1 2 μA % %/V % mV μA μA μA μs dB mA mA -2 0.01 -0.6 350 250 60 0.1 0.1 150 60 65 120 400 1.4 -1 165 30 140 60 600 0.20 0.6 600 400 80 1 1 N EW PRODUCT 0.4 1 V V μA °C °C o C/W 4. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. 5. This specification is guaranteed by design. 6. Test condition for SOT26: Device mounted on FR-4 substrate PC board, with minimum recommended pad layout 7. Test condition for DFN2018-6: Device mounted on FR-4 2-layer board,2oz copper, with minimum recommended pad on top layer and 3 vias to bottom layer. AP7332 Document number: DS35132 Rev. 1 - 2 5 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics Start-Up Time VIN=5V, No load CIN=COUT1=COUT2=1μF VEN=0 to 2V (2V/div) Start-Up Time VIN=5V, Both ILOAD=300mA CIN=COUT1=COUT2=1μF VEN=0 to 2V (2V/div) VOUT2=3.3V (1V/div) VOUT2=3.3V (1V/div) VOUT1=1V (500mV/div) N EW PRODUCT VOUT1=1V (500mV/div) Time (40μs/div) Line Transient Response Time (40μs/div) Line Transient Response VIN=4.3V to 5.3V (1V/div) COUT1=COUT2=1μF, Tr=Tf=2μs, Both ILOAD=30mA VIN=4.3V to 5.3V (1V/div) COUT1=COUT2=1μF, Tr=Tf=2μs, Both ILOAD=100mA VOUT1=1V (10mV/div) VOUT1=1V (10mV/div) VOUT2=3.3V (10mV/div) VOUT2=3.3V (10mV/div) Time (100μs/div) Time (100μs/div) AP7332 Document number: DS35132 Rev. 1 - 2 6 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics (Continued) Load Transient Response Load Transient Response ILOAD=10mA to 50mA (50mA/div) ILOAD=10mA to 100mA (100mA/div) N EW PRODUCT VOUT1=1V (20mV/div) VOUT1=1V (20mV/div) VOUT2=3.3V (20mV/div) VOUT2=3.3V (20mV/div) VIN=VEN=4.3V CIN=COUT1=COUT2=1μF Time (100μs/div) EN1 Pin Response VEN1=2V to 0V (2V/div) Both ILOAD=50mA VIN=VEN=4.3V CIN=COUT1=COUT2=1μF Time (100μs/div) EN2 Pin Response VEN1=2V (2V/div) Both ILOAD=50mA VEN2=2V (2V/div) VOUT2=2.8V (1V/div) VOUT1=1.8V (1V/div) VEN2=2V to 0V (2V/div) VOUT2=2.8V (1V/div) VOUT1=1.8V (1V/div) Time (400μs/div) Time (400μs/div) AP7332 Document number: DS35132 Rev. 1 - 2 7 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics (Continued) EN Pin Shutdown Response VIN=5V, Both ILOAD=50mA 100 PSRR vs Frequency 1.8V 80 VEN=0V to 5V (5V/div) PSRR(dB) 60 N EW PRODUCT 2.8V 40 20 0 10 10 100 10000 100000 100000 10k 100k 1M 0 Frequency(Hz) 1000 1k VOUT2=2.8V (1V/div) VOUT1 =1.8V (1V/div) TA=25°C VIN=3.8V+0.5VppAC COUT1=COUT2=1μF Both ILOAD=50mA Time (100μs/div) Input Quiescent current vs Input Voltage 80 Input Quiescent current(μ A) Input Quiescent Current vs Temperature 80 Input Quiescent Current(μ A) 60 60 40 40 20 TA=25°C VOUT1=1V VOUT2=3.3V IOUT=0mA 4 4.5 5 5.5 Input Voltage(V) 6 20 VIN=VEN=4.3V VOUT1=1V VOUT2=3.3V IOUT=0mA -50 -25 0 25 50 75 Temperature(℃ ) 100 125 0 0 AP7332 Document number: DS35132 Rev. 1 - 2 8 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics (Continued) Line Regulation 0.04 0.04 Line Regulation Output Variation(%) 0.02 Output Variation(%) -45°C 90°C 0.02 90°C 0 N EW PRODUCT 0 -0.02 25°C VOUT=1V IOUT=1mA 25°C -0.02 -45°C -0.04 2 3 4 Input Voltage(V) 5 6 -0.04 4 VOUT=3.3V IOUT=1mA 4.5 5 Input Voltage(V) 5.5 6 Load Regulation 0.00 0.00 Load Regulation 90°C Output Variation(%) Output Variation(%) -0.05 90°C -0.05 -45°C 25°C -0.10 -45°C -0.10 25°C -0.15 -0.15 VIN=VEN=2V VOUT=1V -0.20 0 50 100 150 200 250 300 Output Current(mA) -0.20 0 VIN=VEN=4.3V VOUT=3.3V 50 100 150 200 250 300 Output Current(mA) AP7332 Document number: DS35132 Rev. 1 - 2 9 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics (Continued) Dropout Voltage vs Output Current 500 Dropout Voltage vs Output Current 400 VOUT=1.8V Dropout Voltage(mV) VOUT=3.3V Dropout Voltage(mV) 400 90°C 300 300 90°C 200 25°C 200 100 0 0 50 100 150 200 250 300 Output Current(mA) N EW PRODUCT 25°C -45°C 100 -45°C 0 0 50 100 150 200 250 300 Output Current(mA) Current limit vs Input Voltage 800 Current limit vs Temperature 800 600 Current limit(A) 600 Current limit(A) 400 400 200 200 TA=25°C 0 2 3 4 Input Voltage(V) 5 6 VIN=2V 0 -50 -25 0 25 50 75 100 125 Temperature(℃ ) AP7332 Document number: DS35132 Rev. 1 - 2 10 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Performance Characteristics (Continued) Short Circuit Current vs Input Voltage 200 200 Short-circuit Current vs Temperature -45°C Short Circuit Current (mA) Short-circuit Current(mA) VIN=4.3V 160 120 80 40 0 160 120 N EW PRODUCT 90°C 80 40 0 2 3 4 Input Voltage(V) 25°C 5 6 -50 -25 0 25 50 75 Temperature(℃ ) 100 125 AP7332 Document number: DS35132 Rev. 1 - 2 11 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Application Note Input Capacitor A 1μF 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. 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 improve the transient response of the LDO. The AP7332 is stable with very small ceramic output capacitors. Using a ceramic capacitor value that is at least 1μF with ESR≧10mΩ on the output ensures stability. Higher capacitance values help to improve line and load transient response. The output capacitance may be increased to keep low undershoot and overshoot. Output capacitor must be placed as close as possible to OUT and GND pins. N EW PRODUCT Region of Stable COUT ESR vs. Load Current 100 Unstable Range 10 COUT ESR (Ω) 1 Stable Range 0.1 0.01 CIN=COUT1= COUT2=1μF Unstable Range 0.001 0 20 50 100 150 200 250 300 Load Current (mA) No Load Stability 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. ON/OFF Input Operation The AP7332 is turned on by setting the EN pin high, and is turned off by pulling it low. If this feature is not used, the EN pin should be tied to IN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pin must be able to swing above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section under VIL and VIH. AP7332 Document number: DS35132 Rev. 1 - 2 12 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Application Note (Continued) 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 600mA to prevent over-current and to protect the regulator from damage due to overheating. Short Circuit Protection When OUT pin is short-circuit to GND, short circuit protection will be triggered and clamp the output current to approximately 120mA. This feature protects the regulator from over-current and damage due to overheating. N EW PRODUCT Thermal Shutdown Protection Thermal protection disables the output when the junction temperature rises to approximately +165°C, allowing the device to cool down. When the junction temperature reduces to approximately +135°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 enabled, the AP7332 is able to provide full power in as little as tens of microseconds, typically 150µs, 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. Fast Transient Response Fast transient response LDO can 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 LDO. The AP7332’s fast transient response from 0 to 300mA provides stable voltage supply for fast DSP and GSM chipset with fast changing load. Low Quiescent Current The AP7332, consuming only around 60µA for all input range, provides great power saving in portable and low power applications. 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 maximum junction to ambient thermal resistance, maximum ambient temperature, and maximum device junction temperature, which can be calculated by the equation in the following: PD (max@TA) = ( +150°C - TA ) R θJA AP7332 Document number: DS35132 Rev. 1 - 2 13 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Ordering Information AP7332- XXYY XX - 7 Output Voltage : VOUT1/VOUT2 1010 : 1.0V / 1.0V 1033 : 1.0V / 3.3V 1218 : 1.2V / 1.8V 1233 : 1.2V / 3.3V 1528 : 1.5V / 2.8V 1530 : 1.5V / 3.0V 1533 : 1.5V / 3.3V 1828 : 1.8V / 2.8V 1830 : 1.8V / 3.0V 1833 : 1.8V / 3.3V 2530 : 2.5V / 3.0V 2833 : 2.8V / 3.3V 3333 : 3.3V / 3.3V Package FM : DFN2018-6 W6 : SOT26 Packing 7 : Tape & Reel N EW PRODUCT Device Package Code Packaging (Note 8) Quantity 7” Tape and Reel Part Number Suffix AP7332-XXYYW6-7 AP7332-XXYYFM-7 Note: W6 FM SOT26 DFN2018-6 3000/Tape & Reel 3000/Tape & Reel -7 -7 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. AP7332 Document number: DS35132 Rev. 1 - 2 14 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Marking Information (1) SOT26 ( Top View ) 6 5 4 7 7 XXX YWX N EW PRODUCT 1 2 3 XXX : 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 : Internal Code (2) DFN2018-6 ( Top View ) XXX YWX XXX : 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 : Internal Code Device AP7332-1010 AP7332-1033 AP7332-1218 AP7332-1233 AP7332-1528 AP7332-1530 AP7332-1533 AP7332-1828 AP7332-1830 AP7332-1833 AP7332-2530 AP7332-2833 AP7332-3333 Package SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 SOT26 Package DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 DFN2018-6 Identification Code BAA BAM BAS BAZ BA8 BBA BBC BBK BBN BBR BB2 BCU BEA AP7332 Document number: DS35132 Rev. 1 - 2 15 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Package Outline Dimensions (All Dimensions in mm) (1) SOT26 N EW PRODUCT (2) DFN2018-6 6X- 0/0.05 0.10 C 0.08 C 0.13Typ 0.545/0.605 Seating Plane 2X0.25 A Side View C C L C L 0.2/0.3 C L Pin #1 ID 1.3/1.5 1.95/2.075 C L 6x-0.35 Pin #1 0.20 0.9/1.1 6x-0.25 4x-0.50 1.600 Land Pattern Recommendation (Unit:mm) 2X0.25 B 0.50Typ 0.15/0.25 0.10 Top View CAB Bottom View AP7332 Document number: DS35132 Rev. 1 - 2 16 of 18 www.diodes.com 1.20 B 1.75/1.875 A December 2010 © Diodes Incorporated AP7332 DUAL 300mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Taping Orientation (Note 9) For DFN2018-6 N EW PRODUCT Notes: 9. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf AP7332 Document number: DS35132 Rev. 1 - 2 17 of 18 www.diodes.com December 2010 © Diodes Incorporated AP7332 DUAL 300mA 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). 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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N EW PRODUCT Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2010, Diodes Incorporated www.diodes.com AP7332 Document number: DS35132 Rev. 1 - 2 18 of 18 www.diodes.com December 2010 © Diodes Incorporated