AP7165 600mA LOW DROPOUT REGULATOR WITH POK General Description Features • • • • • • • • • • • • • Wide input voltage range: 2.2V – 5.5V 300mV very low dropout at 500mA load Very low quiescent current (IQ): 125µA typical Adjustable output voltage range: 0.8V to 5.0V Very fast transient response High PSRR Accurate voltage regulation Current limiting and short circuit protection Thermal shutdown protection Stable with any type output capacitor ≥ 4.7µF Ambient temperature range -40ºC to 85°C DFN3030-10: Available in “Green” Molding Compound (no Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) The AP7165 is a 600mA, adjustable output voltage, ultra-low dropout linear regulator. The device includes pass element, error amplifier, band-gap reference, current limit and thermal shutdown circuitry. The device is turned on when EN pin is set to logic high level. A Power-OK (POK) output is available for power sequence control. The characteristics of the low dropout voltage and low quiescent current make it suitable for low to medium power applications, for example, laptop computers, audio and video applications, and battery powered devices. The typical quiescent current is approximately 125µA. Built-in current-limit and thermal-shutdown functions prevent IC from damage in fault conditions. The AP7165 is available in DFN3030-10 package. Applications • • • • • • Servers and laptops Smart phone and PDA MP3/MP4 Bluetooth headset Low and medium power applications FPGA and DSP core or I/O power Ordering Information AP 7165 - XX X X Note: Lead Free Packing FN : DFN3030-10 G : Green -7 : Taping 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device AP7165-FN Note: Package Package Code FN Packaging (Note 2) DFN3030-10 7” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 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. AP7165 Rev. 1 1 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Pin Assignments ( Top View ) IN 1 10 OUT IN 2 9 OUT POK 3 8 FB NC 4 7 NC EN 5 6 GND DFN3030-10 Pin Descriptions Name Pin No. IN 1, 2 POK EN GND FB 3 5 6 8 OUT 9, 10 NC 4, 7 Description Voltage input pins, to be tied together externally. Bypass to ground through at least 1 µF capacitor. Power-OK output, active-high open-drain Enable input, active high Ground Output feedback Voltage output pins, to be tied together externally. Bypass to ground through at least 4.7 µF ceramic capacitor No connection Block Diagram IN EN OUT Gate Driver Current Limit and Thermal Shutdown FB 0.8V POK 0.744V GND AP7165 Rev. 1 2 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Typical Application Circuit VIN VOUT IN OUT 100kOhm R1 AP7165 1µF 10µF FB POK R2 Enable EN GND ⎛ R ⎞ VOUT = VREF ⎜⎜1 + 1 ⎟⎟ ⎝ R2 ⎠ Absolute Maximum Ratings Symbol Parameter ESD HBM Human Body Model ESD Protection ESD MM Machine Model ESD Protection VIN Input Voltage OUT, FB, POK, EN Voltage Continuous Load Current TJmax Note: Storage Temperature Range PD Power Dissipation (Note 3,5) Unit 4 300 KV 7 V VIN + 0.3 V V Internal Limited Maximum Junction Temperature TST Ratings DFN3030-10 150 °C -65 ~150 °C 3.0 W 3. Ratings apply to ambient temperature at 25°C Recommended Operating Conditions Symbol VIN IOUT TA AP7165 Rev. 1 Parameter Input voltage Output Current Operating Ambient Temperature 3 of 11 www.diodes.com Min 2.2 0 -40 Max 5.5 600 85 Unit V mA °C OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Electrical Characteristics o (TA = 25 C, VIN = VOUT +1V, CIN = 1µF, COUT = 10µF, VEN = VIN, unless otherwise stated) Symbol IQ ISHDN VDropout VREF IFB VOUT Parameter Input Quiescent Current Input Shutdown Current Dropout Voltage FB reference voltage FB leakage Output Voltage Total Accuracy ΔVOUT / VOUT Line Regulation ΔVIN ΔVOUT / VOUT tST PSRR Power Supply Rejection Ratio ILIMIT Current limit Short-circuit Current EN Input Logic Low Voltage EN Input Logic High Voltage EN Input leakage POK output low voltage Output voltage (rising) POK threshold Output voltage POK hysteresis VPOK_TH_UP VPOK_Hys POK deglitch POK leakage current IPOK_LK Thermal shutdown threshold TSHDN Thermal shutdown hysteresis THYS Thermal Resistance θJA Junction-to-Ambient Note: Min ⎯ -1 ⎯ -2.5 VIN = VOUT +1V to 5.5V, IOUT = 1mA Load Regulation Start-up Time, from EN high to POK high ISHORT VIL VIH IEN VOL Test Conditions IOUT = 0 VEN = 0V, IOUT = 0 (Note 4) VOUT ≥ 1.5V, IOU T = 500mA IOUT from 1mA to 500mA VEN = 0V to 2.0V, IOUT = 100mA, VIN = 3.3V 1kHz, VIN = 3.3V, VOUT = 1.2V, IOUT = 0mA VOUT = 1.8V, ROUT = 0.5Ω VIN = 3.3V, VOUT < 0.2V Typ. 125 0.01 300 0.8 0.01 Max 170 1 400 1 2.5 0.015 -1.0 600 Unit µA µA mV V µA % %/V 1.0 % 170 µs 60 dB 950 380 0.01 100 1 200 mA mA V V µA mV 87% 92% 97% Vref ⎯ 4% 150 0.01 150 25 1 Vref µs µA °C °C 0.4 VEN = 0V or 5.5V Sink 2mA FB (or OUT for fixed version) rising VIN = 3.3V, VOUT = 1.2V VPOK = 5.5V DFN3030-10 (Note 5) 1.4 ⎯ 40 o C/W 4. POK pin must be disconnected from IN pin. 5. Test condition for DFN3030-10: Device mounted on FR-4 2-layer board, 2oz copper, with minimum recommended pad on top layer and 6 vias to bottom layer 1.0”x1.5” ground plane. AP7165 Rev. 1 4 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Typical Performance Characteristics Output Voltage vs. Temperature Output Voltage vs. Temperature 1.90 3.40 Vout=1.8V Output Voltage (V) Output Voltage (V) Vout=3.3V 3.35 3.30 3.25 3.20 1.85 1.80 1.75 1.70 -50 -25 0 25 50 75 100 125 -50 -25 Temperature (oC) 50 75 100 125 Quiescent Current vs. Input Voltage VOUT=1.8V VOUT=1.2V 170 Quiescent Current (uA) Quiescent Current (uA) 25 Temperature (oC) Quiescent Current vs. Input Voltage 170 0 160 150 140 130 120 110 Iout=0mA 100 Iout=300mA 160 150 140 130 120 Iout=0mA 110 Iout=300mA 100 Iout=600mA 90 90 2.5 2.5 3.0 3.5 4.0 4.5 5.0 3.0 5.5 3.5 4.0 4.5 5.0 5.5 Input Voltage (V) Input Voltage (V) Quiescent Current vs. Temperature Quiescent Current vs. IOUT VOUT=1.8V 150 140 130 120 110 100 VIN=2.2V, Vout=1.0V 90 VIN=3.3V, Vout=1.2V VIN=3.3V, Vout=1.8V 80 VIN=5.0V, Vout=3.3V Quiescent Current (uA) Quiescent Current (uA) 150 70 140 130 120 110 VIN=2.5V VIN=3.3V 100 -50 -25 0 25 50 75 100 125 o AP7165 Rev. 1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 IOUT (A) Temperature ( C) 5 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Typical Performance Characteristics (Continued) Reference Voltage vs. Temperature Dropout Voltage vs. IOUT VOUT=3.3V 400 Dropout Voltage (mV) Reference Voltage (V) 0.810 0.805 0.800 0.795 0.790 Vin=2.2V Vin=3.3V 0.785 Vin=5.5V 25°C 350 90°C -45°C 300 250 200 150 100 50 0 0.780 0 -50 -25 0 25 50 75 100 100 200 400 500 600 IOUT (mA) o Temperature ( C) Load Regulation Line Regulation VOUT=1.2V, IOUT=1mA VIN=2.5V, VOUT=1.2V 0.10 0.6 Change in VOUT (%) Change in VOUT (%/V) 300 125 0.05 0.00 -0.05 25°C 25°C 0.5 85°C -40°C 0.4 0.3 0.2 0.1 85°C -40°C 0.0 0.0 -0.10 2.5 3.0 3.5 4.0 4.5 5.0 0.1 0.2 5.5 0.3 0.4 0.5 0.6 IOUT (A) VIN (V) PSRR (VOUT=1.2V) Current Limit vs. Temperature 1.08 -40 -50 1.04 PSRR (dB) Current Limit (A) 1.06 1.02 1.00 0.98 0.96 -60 -70 -80 0.94 Vin=2.8V, Vout=1.8V 0.92 Vin=3.3V, Vout=1.8V 0.90 -50 -25 0 25 50 75 100 o 1000 10000 100000 Frequency (Hz) Temperature ( C) AP7165 Rev. 1 -90 100 6 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Typical Performance Characteristics (Continued) Line Transient Response Line Transient Response VIN =3.3V to 4.4V COUT =10uF (Ceramic) IOUT =200mA VIN =4.4V to 3.3V COUT =10uF (Ceramic) IOUT =200mA VIN 1V/div VIN 1V/div VOUT 50mV/div VOUT 50mV/div Time (50us/div) Time (50us/div) Output Load Transient Response (VOUT=1.2V) Output Load Transient Response (VOUT=1.8V) COUT=470uF (electrolytic) COUT=470uF (electrolytic) COUT=10uF (Ceramic) VOUT COUT=10uF (Ceramic) 50mV/div VOUT 50mV/div COUT=1uF (Ceramic) COUT=1uF (Ceramic) 600mA 600mA IOUT IOUT 1A/us 200mA/div 1A/us 200mA/div 50mA 50mA Time (100us/div) Time (100us/div) Start-up Time (VOUT=1.2V, IOUT=0.1A) Start-up Time (VOUT=1.2V, IOUT=600mA) VEN 2V/div VEN 2V/div COUT=10uF (Ceramic) COUT=10uF (Ceramic) VOUT 1V/div VOUT 1V/div VPOK 2V/div VPOK 2V/div Time (50us/div) Time (50us/div) AP7165 Rev. 1 7 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Typical Performance Characteristics (Continued) Short Circuit Current vs. Tem perature VOUT=1.2V 420 VOUT=1.2V 500 Short Circuit Current (mA) Short Circuit Current (mA) Short Circuit Current vs. Input Voltage 410 450 400 390 400 380 370 350 360 300 350 2.0 2.5 3.0 3.5 4.0 4.5 -50 5.0 -25 0 25 50 75 o Tem perature ( C) Input Voltage (V) Current Limit Protection (VOUT=1.8V) Current Limit & Short Circuit Protection (VOUT=0.8V) VOUT 500mV/div VOUT 500mV/div IOUT 500mA/div Current Limit Protection IOUT 1A/div Short Circuit Protection Time (50us/div) Time (500us/div) Short Circuit Recovery (VOUT=1.8V) Short Circuit Protection (VOUT=1.8V) VOUT 500mV/div VOUT 500mV/div Current Limit Protection IOUT 500mA/div Short Circuit Protection IOUT 500mA/div Time (2ms/div) AP7165 Rev. 1 Time (50us/div) 8 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Application Note Input Capacitor A 1μF ceramic capacitor is recommended to connect between IN and GND pins to decouple input power supply glitch and noise. The amount of the capacitance may be increased without limit. A lower ESR (Equivalent Series Resistance) capacitor allows the use of less capacitance, while higher ESR type requires more capacitance. This input capacitor should be located as close as possible to the device to assure input stability and less noise. For PCB layout, a wide copper trace is required for both IN and GND. Output Capacitor The output capacitor is required to stabilize and help the transient response of the LDO. The AP7165 is designed to have excellent transient response for most applications with a small amount of output capacitance. The AP7165 is stable for all available types and values of output capacitors ≥ 4.7μF. 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. This capacitor should be placed as close as possible to OUT and GND pins for optimum performance. Adjustable Operation The AP7165 provides output voltage from 0.8V to 5.0V through external resistor divider as shown below. VIN VOUT IN CIN 100kOhm OUT R1 AP7165 POK COUT EN GND The output voltage is calculated by: ⎛ R ⎞ VOUT = VREF ⎜⎜1 + 1 ⎟⎟ ⎝ R2 ⎠ Where VREF=0.8V (the internal reference voltage). AP7165 Rev. 1 ⎛V ⎞ R 1 = R 2 ⎜⎜ OUT − 1⎟⎟ ⎝ VREF ⎠ To maintain the stability of the internal reference voltage, R2 needs to be kept smaller than 250kΩ. 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. ENABLE/SHUTDOWN Operation The AP7165 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. POWER-OK The Power-Ok (POK) pin is an active high open-drain output. It can be connected to any 5.5V or lower rail through an external pull-up resistor. The recommended sink current of POK pin is up to 4mA, so the pull-up resistor for POK should be in the range of 10kΩ to 1MΩ. If output voltage monitoring is not needed, the POK pin can be left floating. 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 950mA (600A min) to prevent over-current and to protect the regulator from damage due to overheating. FB R2 Enable Rearranging the equation will give the following equation to find the approximate resistor divider values: Short Circuit Protection When OUT pin is short-circuited to GND or OUT voltage is less than 200mV, short circuit protection be triggered and clamp the output current approximately 380mA. This feature protects regulator from over-current and damage due overheating. 9 of 11 www.diodes.com pin will to the to OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Application Note (Continued) thermal plane that is connected to the thermal pad is critical to avoid thermal shutdown and ensuring reliable operation. Power dissipation of the device depends on input voltage and load conditions and can be calculated by: Low Quiescent Current The AP7165, consuming only around 125µA for all input range and output loading, provides great power saving in portable and low power applications. PD = ( VIN − VOUT )xIOUT Wide Output Range The AP7165, with a wide output range of 0.8V to 5.0V, provides a versatile solution for many portable and low power applications. The AP7165 is available in the DFN3030-10 package with exposed pad, which is the primary conduction path for heat to the printed circuit board (PCB). The pad can be connected to ground or be left floating; however, to ensure the device will not overheat, it should be attached to an appropriate amount of copper PCB area. Thermal Shutdown Protection Thermal protection disables the output when the junction temperature rises to approximately +150°C, allowing the device to cool down. When the junction temperature reduces to approximately +125°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. However, the maximum power dissipation that can be handled by the device depends on the maximum junction to ambient thermal resistance, maximum ambient temperature, and maximum device junction temperature, which can be approximated by the equation below: PD (max@ TA ) = Power Dissipation The device power dissipation and proper sizing of the ( +145°C − TA ) R θJA Marking Information (1) DFN3030-10 ( Top View ) XX YMX Part Number AP7165 AP7165 Rev. 1 XX : B2 : AP7165 Y : Year 0~9 M : Month A~L X : G : Green Package DFN3030-10 10 of 11 www.diodes.com Identification Code B2 OCTOBER 2007 © Diodes Incorporated AP7165 600mA LOW DROPOUT REGULATOR WITH POK Package Information (All Dimensions in mm) (1) DFN3030-10 0.15Typ. 0/0.05 Seating Plane Side View 2X- 0.25 A 0.08 C 0.57/0.60 TOP MARK 0.10 C C 2.9/3.1 2.3/2.5 B A R0 .30 0 0.25/0.55 1.5/1.7 2.9/3.1 (Pin #1 ID) 2X- 0.25 B 0.375Typ. 0.50Typ. 0.2/0.3 0.10 C A B Bottom View Note: 6. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES. 7. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS. IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AP7165 Rev. 1 11 of 11 www.diodes.com OCTOBER 2007 © Diodes Incorporated