AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN General Description Features • • • • • • • • • • • • • • The AP7115 is a 150mA, fixed output voltage, low dropout linear regulator. The device includes pass element, error amplifier, band gap reference, current-limit and thermal shutdown circuit. The characteristics of low dropout voltage and low quiescent current make it suitable for use in battery powered devices. The typical quiescent current is approximately 50µA. Several fixed output voltages are available from 1.0V to 3.5V. Additional protection is provided with built-in current-limit and thermal-shutdown functions. Wide input voltage range from 2.5V to 5.5V 200mV low dropout voltage at 150mA output current Guaranteed 150mA output current. Low quiescent current 50µA Output voltage from 1.0V to 3.5V ±2% output voltage accuracy Low temperature drift at output voltage High PSRR Fast transient response Current limit protection Short circuit protection Thermal shutdown protection SOT25 and SOT353: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) Applications • • • • • • Wireless Communication GSM/GPRS Cellular Phones Handheld Mobile Devices Battery Powered Devices CD-ROM, DVD, and LAN Cards PC and Notebook Peripherals Typical Application Circuit ON EN OFF AP7115 IN VIN CIN 1µF AP7115 Rev. 10 GND EN OUT BP C BP 0.1µF 1 of 11 www.diodes.com VOUT C OUT 1µF MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Ordering Information AP7115 - XX XX G - 7 Output voltage 10 : 1.0V 12 : 1.2V 15 : 1.5V 18 : 1.8V 25 : 2.5V 28 : 2.8V 29 : 2.85V 30 : 3.0V 33 : 3.3V 35 : 3.5V Green G : Green Package Code W SE Device AP7115-XXWG-7 AP7115-XXSEG-7 Notes: Package W : SOT25 SE : SOT353 Packaging (Note 2) SOT25 SOT353 Packing 7 : Tape & Reel 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 Assignments ( Top View ) IN 1 5 OUT GND 2 EN 3 4 BP SOT25 / SOT353 Pin Descriptions Pin Name Pin NO. IN 1 Voltage Input GND 2 Ground EN 3 Chip Enable Control BP 4 Band-Gap Bypass OUT 5 Voltage Output AP7115 Rev. 10 Description 2 of 11 www.diodes.com MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Block Diagram OUT IN Current Limit - + Error Amp Enable EN Bandgap 0.8V Thermal Shutdown GND BP Absolute Maximum Ratings Symbol Parameter ESD HBM Human Body Model ESD Protection ESD MM Machine Model ESD Protection Rating Unit 3.5 400 KV V VIN Input Voltage -0.3~5.5 V VCE CE Pin Voltage -0.3~5.5 V VOUT Output Voltage -0.3~Vin+0.3 V VBP Band Gap Bypass Pin Voltage -0.3~5.5 V PD Power Dissipation 500 mW TJ Operating Junction Temperature Range TST Storage Temperature Range -40 to +125 o C -65 to +150 o C Recommended Operating Conditions Symbol VIN IOUT TA AP7115 Rev. 10 Parameter Input Voltage Output Current Operating Ambient Temperature 3 of 11 www.diodes.com Min 2.5 -40 Max 5.5 150 85 Unit V mA o C MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Electrical Characteristics Symbol Parameter System Supply Input VIN Operating input voltage ΔVOUT/VOUT Output Voltage Accuracy VDO IOUT Dropout Voltage Output Current IQ Quiescent Current Ishutdown Shutdown Current (VCC = 3.3V, IL = 30mA, CIN = 1μF, COUT = 1μF, TA = 25oC) Conditions IL = 0 ~ 150mA VIN = VOUT + 1V where 1mA ≤ IOUT ≤ 50mA IL = 150mA VIN - VOUT = 1V VIN = VOUT + 1V where IOUT = 0 and VCE = VIN VIN = VOUT + 1V where IOUT = 0 and VCE = 0 IOUT = 30mA, f = 1kHz PSRR Power Supply Rejection Ratio Ilimit Current Limit Thermal Management Tshutdown Thermal Shutdown Reference Voltage ΔVREF/ΔT Tempco of Bandgap Reference IOUT = 30mA, -40℃ ≤ T ≤ 85℃ ΔVOUT/ΔT Tempco of Output Voltage Control and Protection VIH,CE VIL,CE VCE = VIN @VIN = 5.0V and VSS = 0V ICE CE Pin Leakage Current VCE = VSS @VIN = 5.0V and VSS = 0V Regulation VOUT + 0.5V ≤ VIN ≤ 5.5V where ΔVO/ΔVIN Line Regulation VOUT >2.0V, IOUT = 30mA 1mA ≤ IL ≤ 150mA where Load Regulation ΔVLOAD VIN = VOUT + 1V Noise Output Noise BW = 10Hz ~ 100kHz en Thermal Resistance SOT25 (Note 3) Thermal Resistance θJA Junction-to-Ambient SOT353 (Note 3) SOT25 (Note 3) Thermal Resistance θJC Junction-to-Case SOT353 (Note 3) Notes: Min Typ. 2.5 -2 Max Unit 5.5 V 2 % 200 300 mV mA 50 80 µA 0.1 1 µA 150 200 70 250 dB mA 150 o o 30 50 50 100 ppm/ C o ppm/ C 0.01 0.01 0.7 0.1 0.1 V V µA µA 0.02 0.1 %/V 0.003 0.006 %/mA 2.0 µVrms 50 - C 200 337 52 121 - o C/W C/W o C/W o C/W o - 3. Test condition for SOT25 and SOT353: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout. AP7115 Rev. 10 4 of 11 www.diodes.com MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Typical Operating Characteristics Quiescent current vs. Vcc ( V IN =2.5~5.5V, I OUT=0mA ) Quiescent current vs. Temperature ( VIN=5V, IOUT=0mA ) 80 Quiescent current (uA) Quiescent current (uA) 80 70 60 50 ` 40 30 20 70 60 50 40 30 20 2.5V 3.0V 3.5V 4.0V 4.5V 5.0V 5.5V -40℃ -20℃ Vcc 270 25℃ 50℃ 85℃ Tem perature Current limit vs. Temperature ( VIN =2.5V, VOUT=1.0V ) Current limit vs. Temperature ( VIN=5V, VOUT=1.0V ) 330 310 Current limit (mA) 250 Current limit (mA) 0℃ 230 210 190 170 290 270 250 230 210 190 170 150 150 -40℃ -20℃ 50℃ 85℃ -40℃ Iout vs. Dropout voltage ( TA=25℃ ) 250 200 150 100 50 -20℃ 0℃ 25℃ Tem perature 50℃ 85℃ Current limit vs. Input voltage ( TA=25℃ ) 370 Current limit (mA) Dropout voltage (mV) 0℃ 25℃ Tem perature 320 270 220 170 120 0 0mA 20mA 40mA 60mA 80mA 100mA 120mA 150mA Iout AP7115 Rev. 10 5 of 11 www.diodes.com 2.5V 3.0V 3.5V 4.0V 4.5V Input voltage 5.0V 5.5V MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Typical Operating Characteristics (Continued) Short current vs. Temperature ( VIN =5V ) 68 74 65 71 Short current (mA) Short current (mA) Short current vs. Temperature ( V IN =2.5V) 62 59 56 53 68 65 62 59 56 53 50 50 -40℃ -20℃ 0℃ 25℃ 50℃ 85℃ Temperature Output Noise -40℃ -20℃ 0℃ 25℃ Tem perature 50℃ 85℃ Output Noise Output Noise AP7115 Rev. 10 6 of 11 www.diodes.com MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Typical Operating Characteristics (Continued) Load Transient Response Load Transient Response Start Up (EN vs. VOUT) Start Up (EN vs. VOUT) Start Up (EN vs. VOUT) Start Up (EN vs. VOUT) AP7115 Rev. 10 7 of 11 www.diodes.com MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Application Note Input Capacitor An 1uF input capacitor is required between the AP7115 input pin and GND. There are no requirements for the ESR on input capacitor, but tolerance and temperature coefficient must be considered. PCB Layout Optimum performance can only be achieved when the device is mounted on a PC board according to the diagram below: Output Capacitor The AP7115 can work with very small ceramic output capacitors (1uF or greater). Higher capacitance values help to improve transient. The output capacitor’s ESR is critical because it from a zero to provide phase lead which is required for loop stability. Figure below is Cout ESR vs. Load Current. AP7115 Region of Stable Cout ESR vs. Load Current Cout ESR (Ω) 100 10 1 Stable 0.1 0.01 0 20 40 60 80 100 120 140 160 Load Current (mA) Band-Gap Bypass Capacitor 0.1uF bypass capacitor Between BP pin and GND can reduces output voltage noise. Shutdown Input Operation The AP7115 is shutdown by pulling the EN pin low, and turned on by driving the input high. If the shutdown feature is not required, the EN pin should be tied to VIN to keep the regulator on at all times. Dropout Voltage Thermal Considerations Thermal Shutdown Protection limits power dissipation in AP7115. When the operation junction temperature exceeds 155°C, the Over Temperature Protection circuit starts the thermal shutdown function and turns the pass element off. The pass element turn on again after the junction temperature cools by 30°C. For continuous operation, do not exceed absolute maximum operation junction temperature 125°C. The power dissipation definition in device is: PD = (VIN − VOUT) x IOUT + VIN x IQ The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient. The maximum power dissipation can be calculated by the following formula: PD(MAX) = ( TJ(MAX) - TA ) / θJA Where TJ(MAX) is the maximum operation junction temperature 125°C, TA is the ambient temperature and the θJA is the junction to ambient thermal resistance. VDROPOUT＝VIN－VOUT＝RDS(ON)×IOUT Current Limit The AP7115 monitors and controls the PMOS’ gate voltage, limiting the output current to 250mA(typ.). The output can be shorted to ground for an indefinite period of time without damaging the part. AP7115 Rev. 10 8 of 11 www.diodes.com MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Marking Information ( Top View ) 4 7 5 XX Y W X 1 Part Number SOT25 AP7115-10W AP7115-12W AP7115-15W AP7115-18W AP7115-25W AP7115-28W AP7115-29W AP7115-30W AP7115-33W AP7115-35W AP7115 Rev. 10 2 3 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 Identification Code FO FP FQ FR FS FT FU FV FW FX Part Number SOT353 AP7115-10SE AP7115-12SE AP7115-15SE AP7115-18SE AP7115-25SE AP7115-28SE AP7115-29SE AP7115-30SE AP7115-33SE AP7115-35SE 9 of 11 www.diodes.com Identification Code GO GP GQ GR GS GT GU GV GW GX MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN Package Information (All Dimensions in mm) (1) Package Type: SOT25 (2) Package Type: SOT353 1.15/1.35 2.0/2.2 0.10/0.30 C L Gauge Plane 0.25/0.40 DETAIL"A" 0.9/1.0 C L "A" 0/0.1 1.10Max. 1.8/2.2 0.1/0.22 0.65Bsc. AP7115 Rev. 10 10 of 11 www.diodes.com MAY 2009 © Diodes Incorporated AP7115 150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN 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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