APL5326BI-TRG

APL5326 Adjustable Low Dropout 300mA Linear Regulator Features General Description • • The APL5326 is a P-channel low dropout linear regulator which needs only one input voltage from 3 to 6V, and Wide Operating Voltage: 3~6V Low Dropout Voltage: delivers current up to 300mA to set output voltage. It also can work with low ESR ceramic capacitors and is ideal for 300mV(Typical) @ 300mA • • • • • • • using in the battery-powered applications such as notebook computers and cellular phones. Typical dropout volt- Guaranteed 300mA Output Current Adjustable Output Voltage: 1.25~5.5V age is only 300mV at 300mA loading. Current limit with current foldback and thermal shutdown Current-Limit Protection with Foldback Current functions protect the device against current over-loads and over temperature. The APL5326 is available in a SOT- Over-Temperature Protection Stable with Low ESR Ceramic Capacitor 23-5 package. SOT-23-5 Package Lead Free and Green Devices Available Pin Configuration (RoHS Compliant) Applications • • • VIN 1 GND 2 5 VOUT 4 SET SHDN 3 Cellular Phones SOT-23-5 Portable and Battery-Powered Equipment Notebook and Personal Computers Simplified Application Circuit APL5326 VIN 1 CIN 3 VIN VOUT 5 SHDN SET 4 GND 2 VOUT COUT 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.1 - Sep., 2009 1 www.anpec.com.tw APL5326 Ordering and Marking Information Package Code B: SOT-23-5 Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device APL5326 Assembly Material Handling Code Temperature Range Package Code APL5326 B: 26RX X - Date Code Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). Absolute Maximum Ratings Symbol VIN VSHDN (Note 1) Parameter VIN Supply Voltage (VIN to GND) SHDN Input Voltage (SHDN to GND) PD Power Dissipation TJ Junction Temperature TSTG Storage Temperature TSDR Maximum Lead Soldering Temperature, 10 Seconds Rating Unit -0.3 ~ 6.5 V -0.3 ~ 6.5 V Internally Limited W -40 ~ 150 o -65 ~ 150 o 260 o C C C Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Characteristics Symbol Parameter θJA Thermal Resistance-Junction to Ambient θJC Thermal Resistance-Junction to Case Typical Value Unit (Note 2) SOT-23-5 SOT-23-5 240 o 130 o C/W C/W Note 2 : θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. Recommended Operating Conditions Symbol VIN Parameter VOUT Output Voltage IOUT VOUT Output Current CIN Input Capacitor COUT TJ Range VIN Supply Voltage Unit 3~6 V 1.25 ~ 5.5 V 0 ~ 300 mA 0.22 ~ 100 µF Output Capacitor 0.8 ~ 100 µF Junction Temperature -40 ~ 125 o Copyright  ANPEC Electronics Corp. Rev. A.1 - Sep., 2009 2 C www.anpec.com.tw APL5326 Electrical Characteristics Unless otherwise specified, these specifications apply over VIN = VOUT+1V, IOUT=0~300mA, CIN = 1µF, COUT = 1µF, TA = -40 to 85oC. Typical values are at TA = 25oC. APL5326 Symbol VIN VOUT Parameter Test Conditions Input Voltage Output Voltage Range Unit Min. Typ. Max. 3 - 6 V 1.25 - 5.5 V IQ Quiescent Current IOUT =10mA ~300mA - 135 160 µA VREF Reference Voltage Measured on SET, VIN=3V, IOUT=10mA - 1.25 - V Output Voltage Accuracy IOUT=10mA -2 - +2 % Line Regulation ∆VOUT%/∆VIN, IOUT=10mA -0.06 - +0.06 %/V ∆VOUT%/∆IOUT -0.2 - +0.2 %/A VOUT = 2.5V, IOUT = 300mA - 500 650 VOUT = 3.3V, IOUT = 300mA - 300 400 Power Supply Ripple Rejection Ratio f = 10kHz, IOUT = 10mA - 40 - dB Noise f = 80Hz to 100kHz, IOUT = 300mA - 160 - µVRMS 450 550 - mA - 350 - mA SHDN Input Voltage High 1.6 - - SHDN Input Voltage Low - - 0.4 REGLINE REGLOAD Load Regulation VDROP PSRR Dropout Voltage ILIMIT Current Limit ISHORT Foldback Current VIN = 5V, VOUT = 0V mV V VOUT Discharge MOSFET RDS(ON) SHDN = Low - 60 - Ω Shutdown VIN Supply Current SHDN = Low, VIN = 6V - 0.1 1 µA SHDN Pull Low Resistance - 3 - MΩ Over-Temperature Threshold - 160 - o o Over-Temperature Hysteresis SET Input Bias Current Copyright  ANPEC Electronics Corp. Rev. A.1 - Sep., 2009 VSET=1.25V 3 - 40 - -100 - 100 C C nA www.anpec.com.tw APL5326 Typical Operating Characteristics Dropout Voltage vs. Output Current 400 VIN=3.3V, VOUT=1.25V, IOUT=10mA Dropout Voltage, VDROP(mV) PSRR (dB) PSRR vs. Frequency +0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 300 VOUT=3.3V TJ=125oC TJ=75oC 250 200 150 100 TJ=-50oC 50 TJ=25oC -120 20 100 1k 10k Frequency (Hz) 0 0 100k 200k VOUT=2.5V VIN=5V o 500 TJ=75 C TJ=125oC 400 300 200 TJ=-50oC 550 500 VIN=3.3V 450 TJ=25oC 100 0 0 300 600 Current Limit, ILIMIT (mA) 600 100 200 Output Current, IOUT(mA) Current Limit vs. Junction Temperature Dropout Voltage vs. Output Current 700 Dropout Voltage, VDROP(mV) 350 100 200 400 -50 300 0 25 50 75 Junction Temperature, T J Output Current, I OUT(mA) Copyright  ANPEC Electronics Corp. Rev. A.1 - Sep., 2009 -25 4 100 125 (oC) www.anpec.com.tw APL5326 Operating Waveforms Power on Power Off V IN VIN 1 1 VOUT VOUT 2 2 IOUT IOUT 3 3 CH1 : V IN , 2V/div CH2 : VOUT , 2V/div CH3 : IOUT , 200mA/div Time : 500µs/div CH1 : VIN , 2V/div CH2 : VOUT , 2V/div CH3 : IOUT , 200mA/div Time : 50ms/div Current Limit Load Transient VIN =5V, C IN =1µF, COUT=1µF IOUT=10mA->300mA->10mA IOUT rising slew rate=300mA/ µs 1 VOUT VOUT 1 IOUT IOUT 2 2 CH1 : VOUT, 1V/div CH2 : IOUT, 500mV/div Time : 20 µs/div CH1 : VOUT, 50mV/div, DC Offset=3.3V CH2 : IOUT, 100mA/div Time : 50µs/div Copyright  ANPEC Electronics Corp. Rev. A.1 - Sep., 2009 5 www.anpec.com.tw APL5326 Operating Waveforms (Cont.) Enable Shutdown VEN VOUT V OUT 2 VE N 1 1 2 IOUT IOUT 3 3 CH1 : VEN , 2V/div CH2 : V OUT , 2V/div CH3 : IOUT , 200mA/div Time : 10µs/div CH1 : VEN , 2V/div CH2 : V OUT , 2V/div CH3 : IOUT , 200mA/div Time : 10µs/div Pin Description PIN NO. FUNCTION NAME 1 VIN Voltage supply input pin. 2 GND Ground pin. 3 SHDN 4 SET 5 VOUT Shutdown control pin, logic high: enable; logic low: shutdown. Connect this pin to an external resistor divider to adjust output voltage. Regulator output pin. Copyright  ANPEC Electronics Corp. Rev. A.1 - Sep., 2009 6 www.anpec.com.tw APL5326 Block Diagram UVLO & Shutdown Logic SHDN VIN Thermal Shutdown Foldback Current Limit + 1.25V 3MΩ VOUT SET GND Typical Application Circuit VIN 1 CIN 1µF 3 VOUT VIN SET SHDN VOUT 5 4 R1 GND COUT 1µF 2 Enable R2 Shutdown R1   VOUT = 1.25 ⋅  1 +  R2   Designation CIN, COUT CIN, COUT Supplier Part Number Murata GRM185R61A105KE36 Murata GRM188R71A105KA61 Specification 0603, X5R, 10V, 1µF 0603, X7R, 10V, 1µF Reference: www.murata.com Copyright  ANPEC Electronics Corp. Rev. A.1 - Sep., 2009 7 www.anpec.com.tw APL5326 Function Description Output Voltage Regulation The APL5326 is an adjustable low dropout linear regulator. The output voltage set by the resistor-divider is determined by: R1   VOUT = 1.25 ⋅  1 +  R2   Where R1 is connected from VOUT to SET with Kelvin sensing and R2 is connected from SET to GND. The recommended value of R2 is in the range of 100 to100kΩ. An error amplifier works with a temperature compensated 1.25V reference and an output PMOS regulates the output to the presetting voltage. The error amplifier is designed with high bandwidth and DC gain provides very fast transient response and less load regulation. It compares the reference with the feedback voltage and amplifies the difference to drive the output PMOS which provides load current from VIN to VOUT. Thermal Shutdown A thermal shutdown circuit limits the junction temperature of APL5326. 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 soft-start cycle after the junction temperature is cooled down by 40oC. The thermal shutdown is designed with a 40oC hysteresis to lower the average junction temperature during continuous thermal overload conditions, extending lifetime of the device. For normal operation, device power dissipation should be externally limited so that junction temperature will not exceed 125oC. Shutdown Control The APL5326 has an active-low shutdown function. Force SHDN high (>1.6V) enables the VOUT; force SHDN low (