AP7342 DUAL 150mA HIGH PSRR LOW NOISE LDO WITH ENABLE Description Pin Assignments The AP7342 is a dual low dropout regulator with high output voltage accuracy, low RDSON, high PSRR, low output noise and low quiescent current. This regulator is based on a CMOS process. Each regulator includes a voltage reference, error amplifier, current limit circuit and an enable input to turn on/off output. With the integrated resistor network, fixed output voltage versions can be delivered. With its low power consumption and line and load transient response, the AP7342 is well suited for low power handheld communication equipment. The AP7342 is packaged in X2-DFN1212-6 package and allows for smallest footprint and dense PCB layout. Applications Features • Low VIN and Wide VIN Range: 1.7V to 5.25V • • Guarantee Output Current: 150mA VOUT Accuracy ±1% • • • • • • Ripple Rejection: 75dB at 1kHz Low Output Noise: 60µVrms from 10Hz to 100kHz Quiescent Current as Low as 35µA VOUT Fixed 1.2V to 3.6V Totally Lead-Free & and Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free, Green Device (Note 3) Notes: • • • • • • • Smart Phone/PAD RF Supply Cameras Portable Video Portable Media Player Wireless Adapter Wireless Communication 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Applications Circuit AP7342 Document number: DS37614 Rev. 2 - 2 1 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Pin Descriptions Pin Number Pin Name Function 1 VOUT1 Channel 1 Output Voltage Pin 2 VOUT2 Channel 2 Output Voltage Pin 3 GND Ground Chanel 2 Enable Pin 4 EN2 5 VIN This pin should be driven either high or low and must not be floating. Driving this pin high enables channel 2 output, while pulling it low puts Chanel 2 regulator into shutdown mode. Power Input Pin Chanel 1 Enable Pin 6 EN1 – Thermal PAD This pin should be driven either high or low and must not be floating. Driving this pin high enables channel 1 output, while pulling it low puts Chanel 1 regulator into shutdown mode. In PCB layout, it is preferred to use large copper area to cover this pad for better thermal dissipation, then connect this area to GND or leave it open. However, do not use it as GND electrode function alone. Functional Block Diagram AP7342 (No Discharge) AP7342 Document number: DS37614 Rev. 2 - 2 AP7342 (With Discharge) 2 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4) Symbol Parameter Rating Unit VIN Input Voltage 6.0 V VEN Input Voltage at EN Pins 6.0 V VOUT Output Voltage -0.3 to VIN +0.3 V IOUT Output Current 180 mA PD Power Dissipation 600 mW TA Operating Ambient Temperature -40 to +85 °C Storage Temperature -55 to +125 °C TSTG Note: 4. 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 conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Symbol Parameter VIN Input Voltage IOUT Output Current TA Operating Ambient Temperature AP7342 Document number: DS37614 Rev. 2 - 2 3 of 14 www.diodes.com Min Max Unit 1.7 5.25 V 0 150 mA -40 +85 °C March 2015 © Diodes Incorporated AP7342 Electrical Characteristics (@TA = +25°C, VIN = VOUT+1V (VOUT > 1.5V), VIN = 2.5V (VOUT ≤ 1.5V), IOUT = 1mA, CIN = COUT = 1.0µF, unless otherwise specified.) Parameter Input Voltage Conditions TA = -40°C to +85°C VIN = (VOUT-Nom+1.0V) to Output Voltage Accuracy (Note 11) TA = +25°C Min Typ Max Unit 1.7 – 5.25 V -1 – 1 -1.5 – 1.5 5.25V, % TA = -40°C to +85°C IOUT = 1mA to 150mA Line Regulation (∆VOUT/∆VIN/VOUT) VIN = (VOUT-Nom+1.0V) to 5.25V, IOUT = 1.0mA – 0.02 0.1 %/V Load Regulation (∆VOUT/∆IOUT) VIN = VOUT-Nom+1.0V, IOUT = 1mA to 150mA – 15 30 mV – 35 50 µA Quiescent Current (Note 6) Set EN1 high, set EN2 low, or set EN2 high, set EN1 low, No load Set EN1/EN2 high, No load – 70 100 µA ISTANDBY Set EN1/EN2 low, No load – 0.1 1.0 µA Output Current – 300 – – mA Fold-back Short Current (Note 7) VOUT short to ground – 55 – mA – 75 – dB – 60 – µVrms VOUT ≤ 1.2V – 0.48 0.59 1.2V < VOUT ≤ 1.4V – 0.39 0.50 1.4V < VOUT ≤ 1.7V – 0.35 0.44 1.7V < VOUT ≤ 2.1V – 0.30 0.39 2.1V < VOUT ≤ 2.5V – 0.26 0.34 2.5V < VOUT ≤ 3.0V – 0.25 0.30 3.0V < VOUT ≤ 3.6V – 0.22 0.29 – ±30 – ppm/°C VIN = (VOUT+1V) VDC + PSRR (Note 8) 0.2Vp-pAC, f = 1kHz VOUT ≥1.8V, IOUT = 30mA Output Noise Voltage (Notes 8 & 9) Dropout Voltage (Note 5) Output Voltage Temperature Coefficient BW = 10Hz to 100kHz, IOUT = 30mA IOUT = 150mA IOUT = 30mA, TA = -40°C to +85°C V EN Input Low Voltage – 0 – 0.5 V EN Input High Voltage – 1.3 – 5.25 V -1.0 – 1.0 µA – 50 – Ω EN Input Leakage VEN = 0V, VIN = 5.0V or VEN = 5.0V, VIN = 0V On Resistance of N-Channel for AutoDischarge (Note 10) VIN = 4.0V, VEN = 0V Notes: (Disabled) D Version, Chanel 1 & 2 5. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. 6. Quiescent current is defined here is the difference in current between the input and the output. 7. Short circuit current is measured with VOUT pulled to GND. 8. This specification is guaranteed by design. 9. To make sure lowest environment noise minimizes the influence on noise measurement. 10. AP7342 has 2 options for output, built-in discharge and non-discharge 11. Potential multiple grades based on following output voltage accuracy. AP7342 Document number: DS37614 Rev. 2 - 2 4 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Typical Characteristics AP7342 Document number: DS37614 Rev. 2 - 2 5 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Typical Characteristics (cont.) AP7342 Document number: DS37614 Rev. 2 - 2 6 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Typical Characteristic (cont.) Load Transient Response Waveforms(VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µ µF, TA=25°C) 4 3 2 Input Voltage 1.82 Output Voltage 1.80 Input Voltage V IN (V) Output Voltage V OUT (V) 1.8V 1.78 0 20 40 60 80 Time t (µs) 4 3 2 Input Voltage Output Voltage 2.82 2.80 Input Voltage V IN (V) Output Voltage V OUT (V) 2.8V 2.78 0 20 40 60 80 Time t (µs) AP7342 Document number: DS37614 Rev. 2 - 2 7 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Typical Characteristics (cont.) Load Transient Response Waveforms(VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA = +25°C) Output Voltage 3.4 3.3 Output Voltage Iout=30mA 80 160 240 320 Output Current 50mA ↔ 100mA 2.9 2.8 2.7 Output Voltage 3.2 400 0 80 160 320 Output Voltage V OUT (V) Output Voltage V OUT (V) Output Current I OUT (mA) 3.4 3.3 Output Voltage Iout=30mA 240 320 400 COUT=0.47µF 2.8V 200 100 0 Output Voltage 160 240 COUT=0.47µF Output Current 0.1mA ↔ 150mA 80 2.9 Time t (µs) 1.8V 0 3.1 3.0 Output Voltage Iout=30mA Time t (µs) 1.9 1.8 1.7 150 100 50 0 200 100 0 Output Current 0.1mA ↔ 150mA 2.9 2.8 2.7 Output Voltage 3.1 3.0 Output Voltage Iout=30mA 3.2 400 0 Time t (µs) 80 160 240 320 Output Current I OUT (mA) 0 Output Voltage V OUT (V) 1.9 1.8 1.7 Output Current I OUT (mA) Output Voltage V OUT (V) 150 100 50 0 Output Current 50mA ↔ 100mA COUT=0.47µF 2.8V Output Current I OUT (mA) COUT=0.47µF 1.8V 2.9 400 Time t (µs) Turn On Waveform of Output Discharge versions (VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA = +25°C) AP7342 Document number: DS37614 Rev. 2 - 2 8 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Typical Characteristics (cont.) Turn Off Waveform of Output Discharge versions (VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA = +25°C) 2.8V Output Voltage IOUT=0mA IOUT=30mA IOUT=150mA 0 0 40 80 120 160 Output Voltage V OUT (V) 2 1 4 CE Input Voltage 3 2 1 0 CE Input Voltage V CE (V) Output Voltage V OUT (V) CE Input Voltage 2 0 4 2 Output Voltage IOUT=0mA IOUT=30mA IOUT=150mA 0 200 0 Time t (µs) 40 80 120 160 CE Input Voltage V CE (V) 1.8V 200 Time t (µs) Application Information Output Capacitor An output capacitor (COUT) is needed to improve transient response and maintain stability. The AP7342 is stable with very small ceramic output capacitors. The ESR (Equivalent Series Resistance) and capacitance drives the selection. If the application has large load variations, it is recommended to utilize low-ESR bulk capacitors. It is recommended to place ceramic capacitors as close as possible to the load and the GND pin and care should be taken to reduce the impedance in the layout. Input Capacitor To prevent the input voltage from dropping during load steps, it is recommended to utilize an input capacitor (CIN). A minimum 0.47µF ceramic capacitor is recommended between VIN and GND pin to decouple input power supply glitch. 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 VIN and GND pin. Enable Control The AP7342 is turned on by setting the EN pins high, and is turned off by pulling it low. If this feature is not used, the EN pins should be tied to VIN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pins must be able to swing above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section. Short Circuit Protection When VOUT pins are short-circuit to GND, short circuit protection will be triggered and clamp the output current to approximately 60mA. This feature protects the regulator from overcurrent and damage due to overheating. Layout Considerations For good ground loop and stability, the input and output capacitors should be located close to the input, output, and GND pin of the device. The regulator GND pin should be connected to the external circuit ground to reduce voltage drop caused by trace impedance. Ground plane is generally used to reduce trace impedance. Wide trace should be used for large current paths from VIN to VOUT and load circuit. AP7342 Document number: DS37614 Rev. 2 - 2 9 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 ESR vs. Output Current Ceramic type output capacitor is recommended for this series; however, the other output capacitors with low ESR can also be used. The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The stable region is marked as the hatched area in the graph. Measurement Conditions: Frequency Band: 10Hz to 2MHz 2MHz, Temperature: −40°C to +85°C. ESR vs. Output Current AP7342-18 ESR vs. Output Current AP7342-33 33 100 100 10 10 -40°C 85°C ESR (Ω) ESR (Ω) 1 0.1 0.01 -40°C 85°C 1 0.1 0.01 0.001 0.001 0 50 100 150 200 250 300 0 50 100 150 200 250 300 Output Current IOUT (mA) Output Current IOUT (mA) Ordering Information –7 AP7342X XXXX FS6 Output Discharge CH1/CH CH2 Output Voltage Blank : Non-discharge CH1 1 CH2 D : Output Discharge 12 : 1.2 2V 15 : 1.5 5V 18 : 1.8 8V 25 : 2.5 5V 28 : 2.8 8V 30 : 3.0 0V 33 : 3.3 3V 36 : 3.6 6V 12 : 1.2V 15 : 1.5V 18 : 1.8V 25 : 2.5V 28 : 2.8V 30 : 3.0V 33 : 3.3V Packaging AP7342-XXXXFS6-7 FS6 AP7342D-XXXXFS6-7 FS6 AP7342 Document number: DS37614 Rev. 2 - 2 Packing FS6 : X2-DFN1212-6 7 : Tape & Reel 7” Tape and Reel Package Code Device Package Quantity Part Number Suffix X2-DFN1212-6 5,000/Tape & Reel -7 X2-DFN1212-6 5,000/Tape & Reel -7 10 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Marking Information (1) X2-DFN1212-6 Part Number VOUT1/VOUT2 Package Identification Code AP7342-3028FS6-7 3.0V/2.8V X2-DFN1212-6 CAA AP7342-3328FS6-7 3.3V/2.8V X2-DFN1212-6 CAB AP7342D-1218FS6-7 1.2V/1.8V X2-DFN1212-6 CAC AP7342D-1528FS6-7 1.5V/2.8V X2-DFN1212-6 CAD AP7342D-1815FS6-7 1.8V/1.5V X2-DFN1212-6 CAE AP7342D-1818FS6-7 1.8V/1.8V X2-DFN1212-6 CAF AP7342D-1828FS6-7 1.8V/2.8V X2-DFN1212-6 CAG AP7342D-1833FS6-7 1.8V/3.3V X2-DFN1212-6 CAH AP7342D-2518FS6-7 2.5V/1.8V X2-DFN1212-6 CAJ AP7342D-2812FS6-7 2.8V/1.2V X2-DFN1212-6 CAK AP7342D-2818FS6-7 2.8V/1.8V X2-DFN1212-6 CAM AP7342D-2825FS6-7 2.8V/2.5V X2-DFN1212-6 CAN AP7342D-2833FS6-7 2.8V/3.3V X2-DFN1212-6 CAP AP7342D-3018FS6-7 3.0V/1.8V X2-DFN1212-6 CAR AP7342D-3028FS6-7 3.0V/2.8V X2-DFN1212-6 CAS AP7342D-3030FS6-7 3.0V/3.0V X2-DFN1212-6 CAT AP7342D-3318FS6-7 3.3V/1.8V X2-DFN1212-6 CAU AP7342D-3328FS6-7 3.3V/2.8V X2-DFN1212-6 CAV AP7342D-3330FS6-7 3.3V/3.0V X2-DFN1212-6 CAW AP7342D-3333FS6-7 3.3V/3.3V X2-DFN1212-6 CAX AP7342D-3612FS6-7 3.6V/1.2V X2-DFN1212-6 CAY AP7342 Document number: DS37614 Rev. 2 - 2 11 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version. A3 A1 A Seating Plane D Pin 1 ID C0.15 z1 D2 E2 k E L X2-DFN1212-6 Dim Min Max Typ A 0.40 0.39 A1 0.00 0.05 0.020 A3 0.13 b 0.13 0.23 0.18 D 1.15 1.25 1.20 D2 0.89 0.99 0.94 E 1.15 1.25 1.20 E2 0.25 0.35 0.30 e 0.40 k 0.15 0.25 0.20 L 0.15 0.25 0.20 z 0.11 z1 0.05 All Dimensions in mm b z e Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. C Y1 X2 Dimensions X1 C G X X1 X2 Y Y1 Y2 G Y2 Y Value (in mm) 0.400 0.150 0.250 0.940 1.050 0.400 0.300 1.400 X AP7342 Document number: DS37614 Rev. 2 - 2 12 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 Tape Orientation Note: The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. AP7342 Document number: DS37614 Rev. 2 - 2 13 of 14 www.diodes.com March 2015 © Diodes Incorporated AP7342 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. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. 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Copyright © 2015, Diodes Incorporated www.diodes.com AP7342 Document number: DS37614 Rev. 2 - 2 14 of 14 www.diodes.com March 2015 © Diodes Incorporated