APL5315-25

APL5315 Selectable Adjustable/Fixed Low dropout 300mA Linear Regulator Features • • • • • • • • • • Wide Operating Voltage: 2.7~6V Low Dropout Voltage: 230mV(typical) @ 300mA Guaranteed 300mA Output Current Two Modes for Setting Output Voltage - Fixed Output Voltage: 1~5V - Adjustable Output Voltage: 0.8~5.5V Current Limit Protection with Foldback Current Internal Soft-Start Over Temperature Protection Stable with Low ESR Ceriamic Capacitor SOT-23-5 Package Lead Free Available (RoHS Compliant) General Description The APL5315 is a P-channel low dropout linear regulator which needs only one input voltage from 2.7~6V, and delivers current up to 300mA to set output voltage. It also can work with low ESR ceramic capacitors and is ideal for using in the battery-powered applications such as notebook computers, cellular phones. Typical dropout voltage is only 230mV at 300mA loading. The APL5315 provides two kinds of output voltage operation modes for setting the output voltage. Fixed output voltage mode senses the output voltage on VOUT, adjustable output voltage mode needs two resistors as a voltage divider. Current limit with current foldback and thermal shutdown functions protect the device against current over-loads and over temperature. The APL5315 is available in a SOT-23-5 package. Simplified Application Circuit VIN APL5315 3 CIN 1 VIN SHDN 2 VOUT SET 4 5 COUT VOUT Applications • • • Cellular Phones Portable and Battery-powered Equipment Notebook and Personal Computers GND Ordering and Marking Information APL5315 Lead Free Code Handling Code Temperature Range Package Code Voltage Code Package Code B : SOT- 23-5 Operating Junction Temperature Range I : -40 to 85°C Handling Code TR : Tape & Reel Voltage Code 12 : 1.2V Blank: Adjustable Lead Free Code L : Lead Free Device Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldering operations. ANPEC lead-free products meet or exceed the leadfree requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature. ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright © ANPEC Electronics Corp. Rev. A.2 - Mar., 2007 1 www.anpec.com.tw APL5315 Product Name APL5315 APL5315-18 Marking 35RX 35CX Product Name APL5315-12 APL5315-25 Marking 355X 35JX Product Name APL5315-15 APL5315- 33 Marking 359X 35RX (Note2) Note1 : Other voltage version please contact ANPEC for detail. Note2 : Because APL5315 and APL5315-33 are identical, the marking of APL5315 is same as APL5315-33. Pin Configuration SHDN 1 GND 2 VIN 3 SOT-23-5 5 SET 4 VOUT Absolute Maximum Ratings Symbol VIN VSHND PD TJ TSTG TSDR Parameter VIN Supply Voltage (VIN to GND) SHND Input Voltage (SHND to GND) Power Dissipation Junction Temperature Storage Temperature Soldering Temperature, 10 Seconds Rating -0.3 ~ 6.5 -0.3 ~ 6.5 Internally Limited -40 ~ 150 -65 ~ 150 260 Unit V V W ° C ° C ° C Thermal Characteristics Symbol θJA Parameter Thermal Resistance-Junction to Ambient (Note 3) Typical Value 240 Unit o C/W Note3 : θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. Recommended Operating Conditions Symbol VIN VOUT IOUT COUT TJ VIN Supply Voltage Output Voltage VOUT Output Current Output Capacitor Junction Temperature Parameter Range 2.7 ~ 6 0.8 ~ 5.5 0 ~ 300 1.5 ~ 33 -40 ~ 125 Unit V V mA µF o C C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 2 www.anpec.com.tw APL5315 Electrical Characteristics Unless otherwise specified, these specifications apply over VIN = VOUT+1V (min VIN=2.7V), IOUT=0~300mA, CIN = 1µF, COUT = 2.2µF, TA = -40 to 85oC. Typical values are at TA = 25oC. Symbol VIN VOUT Parameter Input Voltage Output Voltage Range UVLO Threshold UVLO Hysteresis Test Condition Min. 2.7 0.8 1.5 --IOUT =10mA ~300mA Measured on SET, VIN=2.7V, IOUT=10mA Fixed output voltage, IOUT=10mA ΔVOUT%/ΔVIN, IOUT=10mA ΔVOUT%/ΔIOUT VOUT = 2.5V, IOUT = 300mA --0.784 -2 -0.06 -0.2 --------400 VOUT = 0V --1.6 --SHDN = Low, VIN = 6V ----SHDN = Low --------- APL5315 Typ. ----2.3 0.8 120 0.8 ------230 170 45 160 500 80 ----0.1 3 60 160 40 100 Max. 6 5.5 2.6 --160 0.816 +2 +0.06 +0.2 360 Unit V V V V µA V % %/V %/A IQ VREF Quiescent Current Reference Voltage Output Voltage Accuracy REGLINE Line Regulation REGLOAD Load Regulation VDROP Dropout Voltage VOUT = 3.3V, IOUT = 300mA 300 ----650 ----Power Supply Ripple Rejection Ratio Noise mV PSRR f = 10kHz, IOUT = 300mA f = 80Hz to 100KHz, IOUT = 300mA dB µVRMS mA mA V ILIMIT ISHORT Current Limit Foldback Current SHDN Input Voltage High SHDN Input Voltage Low Shutdown VIN Supply Current SHDN Pull Low Resistance VOUT Discharge MOSFET RDS(ON) Over Temperature Threshold Over Temperature Hysteresis SET Input Threshold for Fixed/Adjustable Output Voltage Mode SET input bias current VSET=0.8V 0.4 1 ----------µA MΩ Ω ° C ° C mV -100 60 --80 100 100 nA µs TSS Soft-Start Interval C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 3 www.anpec.com.tw APL5315 Typical Operating Characteristics Quiescent Current vs. Supply Voltage 160 140 Quiescent Current, IQ (µA) 120 100 80 60 40 20 0 0 1 2 3 4 5 6 7 Supply Voltage, VIN (V) IOUT= 0mV Quiescent Current vs. Junction Temperature 114 112 Quiescent Current, IQ (µA) 110 108 106 104 102 -50 -25 0 25 50 75 100 125 Junction Temperature, T J (° C) Quiescent Current vs. Output Current 180 160 Quiescent Current, IQ (µA) 140 VIN=5.5V PSRR (dB) 0 -10 -20 PSRR vs. Frequency VIN=3.3V, VOUT=1.2V CIN=1µF, COUT=2.2µF IOUT=300mA 120 100 80 60 0 50 100 -30 -40 -50 -60 VIN=4.5V 150 200 250 300 1000 10000 100000 1000000 Output Current, I OUT (mA) Frequency (Hz) Dropout Voltage vs. Output Current 300 VOUT=2.5V Dropout Voltage, VDROP (mV) 250 200 150 TJ=25° C TJ=75° C TJ=125° C Dropout Voltage vs. Output Current 250 VOUT=3.3V Dropout Voltage, VDROP (mV) 200 TJ=75° C TJ=125° C TJ=25° C 150 100 TJ=0° C TJ=-50° C 100 TJ=-50° C 50 TJ=0° C 50 0 0 100 200 Output Current, I OUT (mA) 300 0 0 100 200 Output Current, IOUT (mA) 300 C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 4 www.anpec.com.tw APL5315 Typical Operating Characteristics (Cont.) Loop Gain vs. Frequency 50 40 30 20 Loop Gain (dB) 10 0 -10 -20 -30 -40 1000 10000 100000 1000000 Frequency (Hz) IOUT=300mA 40 20 0 1000 10000 100000 Frequency (Hz) 1000000 IOUT=100mA 160 Phase vs. Frequency 140 120 Phase (degree) 100 80 60 VIN=3.3V, VOUT=1.2V, CIN=1µF, C OUT=2.2µF IOUT=300mA VIN=3.3V, VOUT=1.2V, CIN=1µF, COUT=2.2µF IOUT=100mA Current Limit vs. Junction Temperature 600 VIN=5V Current Limit, ILIMIT (mA) 550 500 450 400 -50 -25 0 25 50 75 Junction Temperature, T J (° C) 100 125 C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 5 www.anpec.com.tw APL5315 Operating Waveforms Load Transient VIN=3.3V, CIN=1µF, COUT=2.2µF, TR=1µs Line Transient CIN=1µF, COUT=2.2µF, TR=10µs, IOUT=10mA V OUT V IN V OUT IOUT CH1 : VOUT, 50mV/div, AC CH2 : IOUT, 100mA/div, DC Time : 100µs/div CH1 : VIN, 1V/div, DC CH2 : VOUT, 20mV/div, AC Time : 100µs/div Enable Shutdown V OUT V OUT V SHDN V SHDN I OUT I OUT CH1 : VOUT, 500mV/div CH2 : VSHDN, 5V/div CH3 : IOUT, 200mA/div Time : 50µs/div CH1 : VOUT, 500mV/Div CH2 : V , 5V/Div SHDN CH3 : IOUT, 200mA/Div DC Time : 10µs/Div C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 6 www.anpec.com.tw APL5315 Operating Waveforms (Cont.) Power on Power off V IN V IN V OUT V OUT I OUT I OUT CH1 : VIN, 2V/div CH2 : VOUT, 500mV/div CH3 : IOUT, 100mA/div Time : 200µs/Div CH1 : VIN, 2V/div CH2 : VOUT,, 500mV/div, CH3 : IOUT, 100mA/div Time : 50ms/Div Pin Descriptions PIN No NAME I/O FUNCTION 1 2 3 4 5 SHDN GND VIN VOUT SET I I O I Shutdown control pin, logic high: enable; logic low: shutdown Ground pin Voltage supply input pin Regulator output pin Connect this pin to ground for fixed output voltage operation. Connect this pin to an external resistor divider for adjustable output voltage mode operation. C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 7 www.anpec.com.tw APL5315 Block Diagram SHDN UVLO & Shutdown Logic Thermal Shutdown + Foldback current limit VIN VOUT 3MΩ Low SET High + GND V REF 100mV Typical Application Circuits 1. Fixed Output Voltage Mode VIN APL5315 3 1 VIN SHDN GND 2 VOUT SET 4 5 VOUT CIN 1µF COUT 2.2µF Enable Shutdown 2.2µF/GRM155R60J225M Murata C opyright © A NPEC Electronics Corp. Rev. A.2 - Mar., 2007 8 www.anpec.com.tw APL5315 Typical Application Circuits (Cont.) 2. Adjustable Output Voltage Mode APL5315 3 1 VIN SHDN GND 2 Enable R2 VOUT SET 4 5 R1 VIN VOUT CIN 1µF COUT 2.2µF Shutdown R1   VOUT = 0.8 ⋅  1 +  R2   Functional Descriptions Internal Soft-Start An internal soft-start function controls rising rate of the output voltage to limit the surge current at start-up. The typical soft-start interval is about 80µs. Output Voltage Regulation The APL5315 can works in either fixed or adjustable mode by connecting the SET to GND or a resistor-divider which receives the feedback voltage of the regulator. The output voltage set by the resistor-divider is determined by: R1   VOUT = 0.8 ⋅  1 +  R2   ture of APL5315. When the junction temperature exceeds +160οC, a thermal sensor turns off the output PMOS, allowing the device to cool down. The regulator regulates the output again through initiation of a new softstart cycle after the junction temperature cools by 40οC. The thermal shutdown designed with a 40οC hysteresis lowers the average junction temperature during continuous thermal overload conditions, extending life time of the device. For normal operation, device power dissipation should be externally limited so that junction temperature will not exceed 125οC. Under-Voltage Lock Out (UVLO) The APL5315 monitors the input voltage to prevent wrong logic control. The UVLO function initiates a softstart process after input voltage exceeds its rising UVLO threshold during power on. The UVLO function also shuts off the output when the input voltage falls below it’ falling threshold. Typical UVLO hysteresis s voltage is 0.8V. Shutdown Control The APL5315 has an active-low shutdown function. Force SHDN high (>1.6V) enables the VOUT; force SHDN low (