AP7341 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE Description Pin Assignments The AP7341 is a low dropout regulator with high output voltage accuracy, low RDSON, high PSRR, low output noise and low quiescent ADVANCED INFORMATION current. This regulator is based on a CMOS process. The AP7341 includes a voltage reference, error amplifier, current limit circuit and an enable input to turn it on and off. With the integrated resistor network fixed output voltage versions can be delivered. With its low power consumption and line and load transient response the AP7341 is well suited for low power handheld communication equipment. The AP7341 is packaged in an X2-DFN1010-4 package and allows PIN1 – VOUT, PIN2 – GND, PIN3 – EN, PIN4 – VIN for smallest footprint and dense PCB layout. Features Applications Low VIN and Wide VIN Range: 1.7V to 5.25V Smart Phone/Pad Guarantee Output Current,150mA VOUT Accuracy ±1% RF Supply Cameras Ripple Rejection 75dB at 1kHz Portable Video Low Output Noise, 60µVrms from 10Hz to 100kHz Portable Media Player Quiescent Current as Low as 35µA VOUT Fixed 1.1V to 3.3V Wireless Adapter Wireless Communication ● Totally Lead-Free & and Fully RoHS Compliant (Note 1) ● Halogen and Antimony Free, Green Device (Note 2) . Notes: 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 VIN VOUT VIN VOUT AP7341 CIN 1.0uF EN COUT 1.0uF GND Figure 1 Typical Application Circuit AP7341 Document number: DS36523 Rev. 4 - 2 1 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 ADVANCED INFORMATION Pin Descriptions Pin Number X2-DFN1010-4 Function 1 2 VOUT GND 3 EN Power Output pin Ground Enable pin. This pin should be driven either high or low and must not be floating. Driving this pin high enables the regulator, while pulling it low puts the regulator into shutdown mode 4 VIN — Thermal Pad Power Input pin In PCB layout, prefer 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. Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.) Symbol Parameter Unit Input Voltage VCE Input Voltage EN VOUT Output Voltage -0.3 to VIN +0.3 V IOUT Output Current 400 mA PD Power Dissipation 400 mW TA Operating Temperature -40 to +85 °C Storage Temperature -55 to +125 °C TSTG Note: Ratings VIN 6.0 V 6.0 V 4. a). 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. b). Ratings apply to ambient temperature at 25°C . The JEDEC High-K board design used to derive this data was a 2 inch x 2 inch multilayer board with 1ounce internal power and ground planes and 2-ounce copper traces on the top and bottom of the board. Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.) Symbol Parameter VIN Input Voltage IOUT Output Current TA Operating Ambient Temperature AP7341 Document number: DS36523 Rev. 4 - 2 2 of 14 www.diodes.com Min Max 1.7 5.25 Unit V 0 300 mA -40 +85 °C July 2014 © Diodes Incorporated AP7341 Electrical Characteristics (@TA = +25°C, VEN = VOUT +1.0V, CIN = COUT = 1.0µF, IOUT = 1.0mA, unless otherwise specified.) Parameter ADVANCED INFORMATION Input Voltage Conditions TA = -40°C to +85°C TA = +25°C Min Typ Max Units 1.7 — 5.25 V -1 — 1 -1.5 — +1.5 Output Voltage Accuracy (Note 11) VIN = (VOUT-Nom+1.0V) to 5.25V, IOUT = 1mA to 150mA Line Regulation (dVOUT/dVIN/VOUT) VIN = (VOUT-Nom+1.0V) to 5.25V, IOUT = 1.0mA — 0.02 0.1 %/V Load Regulation (dVOUT/VOUT) TA = -40°C to +85°C % VIN = VOUT-Nom+1.0V, IOUT = 1mA to 300mA — 15 30 mV Quiescent Current (Note 6) IOUT = 0mA — 35 50 uA ISTANDBY VEN = 0V (Disabled) Output Current — Fold-back Short Current (Note 7) VOUT short to ground PSRR (Note 8) VIN = [VOUT +1V] VDC +0.2Vp-pAC, VOUT ≥ 1.8V, IOUT = 30mA Output Noise Voltage (Notes 8 & 9) BW = 10Hz to 100kHz, IOUT = 30mA f = 1kHz — 0.01 1.0 uA 300 — — mA — 55 — mA — 75 — dB µVrms — 60 — 1.1V ≤ VOUT < 1.5V — 0.50 0.62 1.5V ≤ VOUT < 1.7V — 0.38 0.47 1.7V ≤ VOUT < 2.0V — 0.34 0.42 2.0V ≤ VOUT < 2.5V — 0.28 0.36 2.5V ≤ VOUT < 2.8V — 0.22 0.30 2.8V ≤ VOUT ≤ 3.3V — 0.21 0.27 VOUT = 1.8V — 0.50 0.65 VOUT = 2.5V — 0.37 0.48 VOUT = 3.3V — 0.30 0.40 IOUT = 30mA, TA = -40°C to +85°C — ±30 — ppm/°C — — 0 1.3 — — 0.5 5.25 V V EN Input Leakage VEN = 0, VIN = 5.0V or VEN = 5.0V, VIN = 0V -1.0 — +1.0 µA On Resistance of N-Channel for Auto-Discharge (Note 10) VIN = 4.0V VEN = 0V (Disabled) — 30 — Ω IOUT = 150mA Dropout Voltage (Note 5) IOUT = 300mA Output Voltage Temperature Coefficient EN Input Low Voltage EN Input High Voltage Notes: V 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. AP7341 has 2 options for output, Built-in discharge and non-discharge 11. Potential multiple grades based on following output voltage accuracy. AP7341 Document number: DS36523 Rev. 4 - 2 3 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 Typical Characteristics Output Voltage vs. Output Current AP7341-18 3.0 2.5 Output Voltage V OUT (V) Output Voltage V OUT (V) 1.8 VIN=2.8 V VIN=3.6 V VIN=4.2 V VIN=5V VIN=5.5 V 1.5 1.2 0.9 0.6 VIN=3.5V VIN=4.2V VIN=5V VIN=5.5V 2.0 1.5 1.0 0.5 0.3 0.0 0.0 0 100 200 300 400 Output Current I OUT (mA) 500 0 3.5 100 200 300 400 Output Current I OUT (mA) 500 Output Noise (AP7341-33) Output Voltage vs. Output Current AP7341-33 Output Voltage V OUT (V) 3.0 VIN=4.3V VIN=5V VIN=5.5V 2.5 2.0 1.5 1.0 0.5 0.0 0 100 200 300 400 Output Current I OUT (mA) 500 Output Voltage vs. Intput Voltage AP7341-25 3.5 Output Voltage vs. Intput Voltage AP7341-33 3.5 3.0 Output Voltage V OUT (V) 3.0 Output Voltage V OUT (V) ADVANCED INFORMATION 2.1 Output Voltage vs. Output Current AP7341-25 2.5 2.5 2.0 2.0 1.5 1.5 1.0 1.0 IOUT=1mA IOUT=30mA IOUT=50mA 0.5 0.0 0 1 2 3 Input Voltage V IN (V) AP7341 Document number: DS36523 Rev. 4 - 2 4 0.5 0.0 5 4 of 14 www.diodes.com 0 1 IOUT=1mA IOUT=30m A IOUT=50m A4 2 3 Input Voltage V IN (V) 5 July 2014 © Diodes Incorporated AP7341 Typical Characteristics (cont.) Supply Current vs. Input Voltage AP7341-25 Supply Current I SS (μA) Supply Current I SS (μA) 40 30 30 20 20 10 10 0 1 2 3 4 Input Voltage V IN (V) 0 5 0 Supply Current vs. Temperature AP7340-25 40 2 3 4 Input Voltage V IN (V) 5 Supply Current vs. Temperature AP7341-33 40 38 1 38 Supply Current I ss (µA) Supply Current I ss (µA) 50 40 0 36 36 34 34 32 32 30 -25 0 25 50 Temperature Topt (℃) 75 Output Voltage vs. Temperature AP7341-25 2.55 2.54 2.53 2.52 2.51 2.50 2.49 2.48 2.47 2.46 2.45 -50 -25 0 25 50 75 Temperature Topt (℃) AP7341 Document number: DS36523 Rev. 4 - 2 30 100 -50 100 5 of 14 www.diodes.com -25 0 25 50 75 Temperature Topt (℃) 100 Output Voltage vs. Temperature AP7341-33 3.35 3.34 3.33 3.32 3.31 3.30 3.29 3.28 3.27 3.26 3.25 Output Voltage V OUT (V) -50 Output Voltage V OUT (V) ADVANCED INFORMATION 50 Supply Current vs. Input Voltage AP7341-33 -50 -25 0 25 50 75 Temperature Topt (℃) 100 July 2014 © Diodes Incorporated AP7341 Dropout Voltage vs. Output Current AP7341-18 650 600 550 500 450 400 350 300 250 200 150 100 50 0 100 150 200 250 Output Current I OUT (mA) 300 0 50 Dropout Voltage V DIF (mV) 85℃ 25℃ -40℃ 100 150 200 250 Output Current I OUT (mA) 0 50 100 150 200 250 Output Current I OUT (mA) AP7341 Document number: DS36523 Rev. 4 - 2 100 -25 0 25 50 75 Temperature Topt (℃) 100 Dropout Voltage vs. Temperature AP7341-33 450 85℃ 25℃ -40℃ 0 25 50 75 Temperature Topt (℃) 50mA 150mA 300mA -50 300 -25 Dropout Voltage vs. Temperature AP7341-25 500 450 400 350 300 250 200 150 100 50 0 Dropout Voltage vs. Output Current AP7341-33 500 450 400 350 300 250 200 150 100 50 0 50mA 150mA 300mA -50 Dropout Voltage vs. Output Current AP7341-25 500 450 400 350 300 250 200 150 100 50 0 Dropout Voltage vs. Temperature AP7341-18 650 600 550 500 450 400 350 300 250 200 150 100 50 0 50mA 150mA 300mA 400 Dropout Voltage V DIF (mV) Dropout Voltage V DIF (mV) 50 Dropout Voltage V DIF (mV) Dropout Voltage V DIF (mV) 85℃ 25℃ -40℃ 0 Dropout Voltage V DIF (mV) ADVANCED INFORMATION Typical Characteristics (cont.) 350 300 250 200 150 100 50 0 300 6 of 14 www.diodes.com -50 -25 0 25 50 75 Temperature Topt (℃) 100 July 2014 © Diodes Incorporated AP7341 1KHz 10KHz 100KH z 3.3 3.8 4.3 4.8 Input Voltage V IN (V) 5.3 80 60 40 20 0 100 1000 10000 100000 Frequency f (Hz) 3.3 3.8 4.3 4.8 Input Voltage V IN (V) 1000000 5.3 Ripple Rejection vs. Frequency AP7341-25 100 90 80 70 60 50 40 30 20 10 0 IOUT=1mA IOUT=30mA IOUT=150mA 100 1KHz 10KHz 100KHz 2.8 Ripple Rejection vs. Frequency AP7341-18 120 Ripple Rejection RR (dB) 90 80 70 60 50 40 30 20 10 0 Ripple Rejection RR (dB) 90 80 70 60 50 40 30 20 10 0 Ripple Rejection vs. Input Bias Voltage IOUT=30mA AP7341-28 IOUT=1mA IOUT=30mA IOUT=150mA Ripple Rejection RR (dB) Ripple Rejection RR (dB) Ripple Rejection vs. Input Bias IOUT=1m Voltage A AP7341-28 2.8 100 1000 10000 100000 Frequency f (Hz) 1000000 Ripple Rejection vs. Frequency AP7341-33 120 IOUT=1mA IOUT=30mA IOUT=150mA 100 Ripple Rejection RR (dB) ADVANCED INFORMATION Typical Characteristics (cont.) 80 60 40 20 0 100 1000 10000 100000 Frequency f (Hz) AP7341 Document number: DS36523 Rev. 4 - 2 1000000 7 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 Typical Characteristics (cont.) 3 2.520 Output Voltage 2.500 5 Input Voltage 4 3.320 Input Voltage V IN (V) Input Voltage V IN (V) 4 Input Voltage 6 Output Voltage V OUT (V) Output Voltage V OUT (V) AP7341-33 5 Output Voltage 3.300 2.480 3.280 20 40 60 80 100 0 20 40 Time t (µs) 100 150 0 2.70 Output Current I OUT (mA) 300 Output Current 1mA 150mA VIN=4.3V tr=tf=0.5µs AP7341-33 Output Voltage V OUT (V) Output Voltage V OUT (V) 80 Time t (µs) VIN=3.5V tr=tf=0.5µs AP7341-25 60 300 150 Output Current 1mA 150mA 0 3.50 3.30 2.50 Output Voltage 3.10 Output Voltage 2.30 Output Current I OUT (mA) 0 2.90 0 20 40 60 80 0 100 20 40 Time t (µs) VIN=3.5V tr=tf=0.5µs AP7341-33 300 Output Current 1mA 300mA 0 2.70 2.50 Output Voltage Output Current I OUT (mA) 600 2.30 80 100 Time t (µs) Output Voltage V OUT (V) AP7341-25 60 600 300 Output Current 1mA 300mA 0 3.50 3.30 Output Voltage 3.10 2.10 VIN=4.3V tr=tf=0.5µs Output Current I OUT (mA) 2.10 Output Voltage V OUT (V) ADVANCED INFORMATION AP7341-25 2.90 0 20 40 60 80 100 0 Time t (µs) AP7341 Document number: DS36523 Rev. 4 - 2 20 40 60 80 100 Time t (µs) 8 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 Typical Characteristics (cont.) 6 6 4 4 3 Output Voltage 2 IOUT=0mA IOUT=30mA IOUT=300mA 1 0 80 160 240 Output Voltage V OUT (V) 0 2 CE Input Voltage 0 Output Voltage 3 2 IOUT=0mA IOUT=30mA IOUT=300mA 1 0 320 0 Time t (µs) 80 160 240 CE Input Voltage V CE (V) 2 CE Input Voltage V CE (V) Output Voltage V OUT (V) AP7341-25 CE Input Voltage 0 320 Time t (µs) AP7341-33 6 6 4 4 Input Voltage 2 IOUT=0mA IOUT=30mA IOUT=300mA 0 80 160 240 IOUT=0mA IOUT=30mA IOUT=300mA 3 2 VoltageOutput Voltage 1 0 320 0 200 Time t (µs) 400 600 800 (µs)Time t (µs) AP7341-33AP7341-18 AP7341-25 (Non-discharge version) 6 6 4 4 CE Input Voltage CE Input VoltageCE IOUT=0mA IOUT=30mA IOUT=300mA 3 2 Output 1 0 0 200 400 600 800 Output Voltage V OUT (V) 0 4 2 CE Input Voltage V CE 2 0 4 3 IOUT=0mA 2 Output Voltage 1 0 0 Time t AP7341 Document number: DS36523 Rev. 4 - 2 4 8 12 16 CE Input Voltage V CE (V) 0 0 4 (V)CE Input Voltage V CE (V) 3 (V)Output Voltage V OUT (V) 0 Output Voltage 1 2 2 CE Input Voltage V CE (V) Output Voltage V OUT (V) CE Input Voltage Output Voltage V OUT ADVANCED INFORMATION AP7341-18 20 Time t (s) 9 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 Application Information Output Capacitor An output capacitor (COUT) is needed to improve transient response and maintain stability. The AP7341 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 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 (C IN). A minimum 0.47μF ceramic capacitor is recommended between VIN and GND pins 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 pins. Enable Control The AP7341 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 VIN 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. Short Circuit Protection When VOUT pin is short-circuit to GND, short circuit protection will be triggered and clamp the output current to approximately 60mA. This feature protects the regulator from over-current 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 ground pins of the device. The regulator ground 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. ESR vs. Output Current Ceramic type output capacitor is recommended for this series; however, the other output capacitors with low ESR also can 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, Temperature: −40°C to +85°C ESR vs. Output Current AP7341-18 100 ESR vs. Output Current AP7341-33 100 10 10 -40°C 85°C 1 ESR (Ω) ESR (Ω) ADVANCED INFORMATION recommended to utilize low-ESR bulk capacitors. It is recommended to place ceramic capacitors as close as possible to the load and the ground 0.1 0.01 -40°C 85°C 1 0.1 0.01 0.001 0.001 0 50 100 150 200 250 Output Current IOUT (mA) AP7341 Document number: DS36523 Rev. 4 - 2 300 10 of 14 www.diodes.com 0 50 100 150 200 250 Output Current IOUT (mA) 300 July 2014 © Diodes Incorporated AP7341 ADVANCED INFORMATION Ordering Information (Note 12) Part Number Package Code Packaging AP7341-XXFS4-7 AP7341D-XXFS4-7 FS4 FS4 X2-DFN1010-4 X2-DFN1010-4 Note: Quantity 5000/Tape & Reel 5000/Tape & Reel 7” Tape and Reel Part Number Suffix -7 -7 12. For packaging details, go to our website at http://www.diodes.com/products/packages.html Marking Information (1) X2-DFN1010-4 (Top View) XX YWX Part Number AP7341-11FS4-7 AP7341-12FS4-7 AP7341-15FS4-7 AP7341-18FS4-7 AP7341-185FS4-7 AP7341-22FS4-7 AP7341-25FS4-7 AP7341-28FS4-7 AP7341-285FS4-7 AP7341-30FS4-7 AP7341-31FS4-7 AP7341-32FS4-7 AP7341-33FS4-7 AP7341D-11FS4-7 AP7341D-12FS4-7 AP7341D-15FS4-7 AP7341D-18FS4-7 AP7341D-185FS4-7 AP7341D-22FS4-7 AP7341D-25FS4-7 AP7341D-28FS4-7 AP7341D-285FS4-7 AP7341D-30FS4-7 AP7341D-31FS4-7 AP7341D-32FS4-7 AP7341D-33FS4-7 AP7341 Document number: DS36523 Rev. 4 - 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 : Internal code Package X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 X2-DFN1010-4 11 of 14 www.diodes.com Identification Code TF T2 T3 T4 T5 TH T6 T7 T8 T9 TC TD TE UF U2 U3 U4 U5 UH U6 U7 U8 U9 UC UD UE July 2014 © Diodes Incorporated AP7341 Package Outline Dimensions (All dimensions in mm.) ADVANCED INFORMATION Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. A3 A1 A Seating Plane D L1 .25 C0 C0 .18 ( 3x ) e E L2 E2 D2 L b Z X2-DFN1010-4 Dim Min Max Typ A 0.40 0.39 A1 0.00 0.05 0.02 A3 0.13 b 0.20 0.30 0.25 D 0.95 1.05 1.00 D2 0.38 0.58 0.48 E 0.95 1.05 1.00 E2 0.38 0.58 0.48 e 0.65 L 0.20 0.30 0.25 L1 0.27 0.37 0.32 L2 0.02 0.12 0.07 Z 0.050 All Dimensions in mm Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. X2 C Dimensions Y2 C X X1 X2 Y Y1 Y2 Y3 Y4 Y1 Y3 Y4 X1 Y Value (in mm) 0.650 0.250 0.480 0.900 0.400 0.470 0.220 0.480 1.300 X AP7341 Document number: DS36523 Rev. 4 - 2 12 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 Tape Orientation ADVANCED INFORMATION For X2-DFN1010-4 Note: 13. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf AP7341 Document number: DS36523 Rev. 4 - 2 13 of 14 www.diodes.com July 2014 © Diodes Incorporated AP7341 IMPORTANT NOTICE ADVANCED INFORMATION 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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