Low Input Voltage, Low-Dropout 200mA Linear Regulator

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1 Low Input Voltage, Low-Dropout 200mA Linear Regulator Description The is a CMOS low dropout, positive linear regulator with input voltage down to about 1.65V. The can deliver a guaranteed 200mA load current with a low dropout voltage. The is suitable for portable application such as cellular handsets or PDA. The is design- ed and optimized to work with low cost ceramic capacitors. The consumes less than 0.1uA during shutdown mode. Besides, its current limit protection and on-chip thermal shutdown function provide protection against any combination of over- load or ambient temperature that could cause junction temperature exceeding maximum rating. The includes a reference bypass pin in order to reduce output noise and a logic controlled shut- down input. The space-saving tiny 5-pin SOT-23, TSOT-23 and 6-pin TDFN packages are attractive for hand-held applications. Pin Assignments S5 Package SOT-23-5 Features Very Low Input Voltage at 1.65V (min.) Guaranteed 200mA Output Current Very Low Quiescent Current at 40μA Shutdown Function Output Voltage Accuracy at ± 2.5% Thermal Shutdown and Current Limiting Protection Functions Low-ESR Ceramic Capacitor for Output Stability RoHS Compliant Tiny SOT-23-5, TSOT-23-5 and TDFN-6 Packages Applications PDA and Notebook Computers Battery Power Systems GSM and CDMA Cellular Handsets Wireless Devices DSC and MP3 Players Ordering Information - TR: Tape / Reel Blank: Tube P: Pb Free with Commercial Standard (RoHS Compliant) G:Green WD Package (TDFN-6 2mm x 2mm) Package Type S5: SOT-23-5 WD: TDFN-6 (2mmx2mm) S8: TSOT-23-5 Output Voltage 09: 0.9V 12:1.2V 10: 1.0V 15:1.5V 11:1.1V S8 Package TSOT-23-5 Note:Please consult Fitipower sales office or authorized distributors for availability of special output voltages. Figure 1. Pin Assignment of -1.1-MAR

2 SOT-23-5 Marking -09S5P Hb -11S5G He= -09S5G Hb= -12S5P Hf -10S5P Hd -12S5G Hf= -10S5G Hd= -15S5P 0R -11S5P He -15S5G 0R= TDFN-6 (2mm x 2mm) Marking -09WDP Hi -11WDG HmG -09WDG HiG -12WDP Hn -10WDP Hk -12WDG HnG -10WDG HkG -15WDP OS -11WDP Hm -15WDG OSG TSOT-23-5 Marking -09S8G d4= -12S8G d7= -10S8G d5= -15S8G d8= -11S8G d6= Typical Application Circuit 4.7µF VIN SHDN GND VOUT BP C BP 0.01µF (Note 2) 4.7µF Figure 2. Typical Application Circuit of Note 1:To prevent oscillation, it is recommended to use minimum 4.7µF X7R or X5R dielectric capacitors if ceramics are used as input/output capacitors. Note 2:CBP is optional for minimizing output noise. Functional Pin Description Pin Name VIN VOUT GND BP SHDN Pin Function Power is supplied to this device from this pin which is required an input filter capacitor. In general, the input capacitor in the range of 1µF to 10µF is sufficient. The output supplies power to loads. The output capacitor is required to prevent output voltage unstable. The is stable with an output capacitor 4.7µF or greater. The larger output capacitor will be required for application with large transient load to limit peak voltage transits, besides could reduce output noise, improve stability and PSRR. Common ground pin. The noise bypass pin. The BP pin is used to augment the internal low pass filter to improve noise performance. Any value of capacitor may be used. Larger value will result in lower output noise. If it is not used, this pin must be left unconnected. Logic input controls the device active or shut off. The shutdown pin can t be left floating and must be tied to the VIN pin if not used MAR

3 Block Diagram Figure 3. Block Diagram of Absolute Maximum Ratings Supply Input Voltage ( ) to + 4V Maximum Junction Temperature (T J ) Power 70 : SOT-23-5 / TSOT-23-5 (P D ) W TDFN-6 (P D ) W Package Thermal Resistance: SOT-23-5 / TSOT-23-5 (θ JA ) /W TDFN-6 (θ JA ) /W Storage Temperature Range (T S ) to Lead Temperature (Soldering, 10 sec.) (T LEAD ) Note:Stresses beyond those listed under Absolute Maximum Ratings" may cause permanent damage to the device. Recommended Operating Conditions Input Voltage ( ) to + 2.5V Operating Junction Temperature Range (T J ) to MAR

4 Electrical Characteristics ( = +0.6V or =1.8V whichever is greater, =4.7µF, =4.7µF, T A =25 ºC, unless otherwise specified) Parameter Symbol Conditions Min Typ Max Unit Input Voltage V Output Voltage Accuracy Δ I O = 1mA, >1.0V % Output Voltage Accuracy Δ I O = 1mA, 1.0V % Current Limit I LIMIT R LOAD =1Ω 200 ma Quiescent Current I Q I O = 0mA µa Dropout Voltage (Note 1) V DROP I O =150mA, 500 mv Dropout Voltage (Note 1) V DROP I O =150mA, =0.9V 650 mv Line Regulation ΔV LINE I O =1mA, = +1V to 5V 1 10 mv Load Regulation (Note 2) ΔV LOAD I O =1mA to 150mA mv Ripple Rejection PSRR =1.8V f RIPPLE = 1KHz, = 4.7µF 65 db Standby Current I STBY SHDN =GND, Shutdown µa SHDN Input Bias Current I IBSD SHDN = or GND µa SHDN Threshold (logic High) V IH =1.8V,Enable 1.4 V SHDN Threshold (logic Low) V IL =1.8V,Shutdown 0.4 V Shutdown Exit Delay Time ΔT C BP =0.01uF,, I OUT =30mA 300 µs Temperature Coefficient T C 50 ppm/ ºC Thermal Shutdown Temperature T SD 160 ºC Thermal Shutdown Hysteresis ΔTSD 25 ºC Note 1:The dropout voltage is defined as -, which is measured when drop about 100mV. Note 2:Regulation is measured at a constant junction temperature by using 40ms current pulse and load regulation in the load range from 1mA to 150mA MAR

5 Application Information The series are low dropout linear regulators that could provide 200mA output current at low input voltage. Besides, current limit and on chip thermal shutdown features provide protection against any combination of over-load or ambient temperature that could cause junction temperature exceeding maximum rating. 1.Output and Input Capacitor The regulator is designed to be stable with a wide range of output capacitors. The ESR of the output capacitor affects stability. Larger value of the output capacitor decreases the peak deviations and provides to improve transition response for larger current changes. The capacitor types (aluminum, ceramic, and tantalum) have different characterizations such as temperature and voltage coefficients. All ceramic capacitors were manufactured with a variety of dielectrics, each with different behavior across temperature and applications. Common dielectrics used are X5R, X7R and Y5V. It is recommended to use 4.7uF to 10uF X5R or X7R dielectric ceramic capacitors with 30mΩ to 50mΩ ESR range between device outputs to ground for transient stability. The is designed to be stable with low ESR ceramic capacitors and higher values of capacitors and ESR could improve output stability. So the ESR of output capacitor is very important because it generates a zero to provide phase lead for loop stability. 2.Protection Features In order to prevent overloading or thermal condition to damage device, regulator has internal thermal and current limiting functions designed to protect the device. It will rapidly shut off PMOS pass element during over-loading or over-temperature condition. 3.Thermal Consideration The power handling capability of the device will be decreased as ambient temperature increased. The power dissipated by the device will be made up of P D = I OUT ( - ). The power dissipation should be lower than the maximum power dissipation listed in Absolute Maximum Ratings. 4.Noise Bypass Capacitor The BP pin connecting a 0.01uF or 0.001uF capacitor could reduce noise and lightly improve PSRR on the regulator output. 5.Active/Shutdown Input Operation The is turned off by pulling the SHDN pin low and turned on by pulling it high. If this feature is not used, theshdn pin should be connected to to keep the regulator output available at all time. Setting Output Voltage(V) Output Capacitor Value 0.9~ µF 1.1~1.5 1µF There are no requirements for the ESR on the input capacitor, but its voltage and temperature coefficient have to be considered for device application environment MAR

6 Typical Performance Curves Output Voltage(V) 1.29 =1.8V Temperature ( 0 C) Output Voltage(V) =1.8V =0.9V Temperature( 0 C) Figure 4. Output Voltage vs. Temperature Figure 5. Output Voltage vs. Temperature ( =0.9V) Current Limit (ma) =1.8V Quiescent Current (ua) =1.8V Temperature ( 0 C) Temperature ( 0 C) Figure 6. Current Limit vs. Temperature Figure 7. Quiescent Current vs. Temperature Standby Current (ua) =1.8V Standby Current (ua) Temperature ( 0 C) Input Voltage (V) Figure 8. Standby Current vs. Temperature Figure 9. Quiescent Current vs. Input Voltage -1.1-MAR

7 Typical Performance Curves (Continued) Quiescent Current (ua) Dropout Voltage(V) Tj=-40 0 C Tj=25 0 C Tj=85 0 C Input Voltage (V) Figure 10. Quiescent Current vs. Input Voltage =1.8V,, I OUT =1mA ~ 150mA Loading Current(mA) Figure 11. Dropout Voltage vs. Loading Current =2V, = 1.2V, I OUT =1mA ~ 200mA I OUT I OUT Figure 12. Load Transient Response =1.8V, = 0.9V, I OUT =1mA ~ 150mA Figure 13. Load Transient Response =1.8V ~2.8V,, I OUT =1mA I OUT Figure 14. Load Transient Response Figure 15. Line Transient Response -1.1-MAR

8 Typical Performance Curves (Continued) =1.8V,, I OUT =10mA =1.8V,, I OUT =1mA V SHDN Figure 16. Shutdown Exit Time Figure 17. Start-up Time -1.1-MAR

9 Outline Information SOT-23-5 Package (Unit: mm) SYMBOLS DIMENSION IN MILLIMETER UNIT MIN MAX A A A b c D E E e e L L θ 0 8 Note 1:Followed From JEDEC MO-178-C. TDFN- 6 2mm 2mm Package (Unit: mm) SYMBOLS DIMENSION IN MILLIMETER UNIT MIN MAX A A A D E a b e D E Note 1:Followed From JEDEC MO-229-C -1.1-MAR

10 Outline Information (Continued) TSOT-23-5 Package (Unit: mm) SYMBOLS DIMENSION IN MILLIMETER UNIT MIN MAX A A A b c D E E e e L L θ 0 8 Note 1:Followed From JEDEC MO-193-C. Life Support Policy Fitipower s products are not authorized for use as critical components in life support devices or other medical systems MAR

Advanced Power Electronics Corp. APE mA LOW DROPOUT LINEAR REGULATOR FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION CIRCUIT APE8800

Advanced Power Electronics Corp. APE mA LOW DROPOUT LINEAR REGULATOR FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION CIRCUIT APE8800 300mA LOW DROPOUT LINEAR REGULATOR FEATURES Low Dropout Voltage of 250mV at 300mA Guaranteed 300mA Output Current Very Low Quiescent Current at about 30uA ±2% Output Voltage Accuracy for 1.5V,1.8V, 2.5V