TS9015

TS9015 300mA CMOS LDO 0.9V Adjustable Voltage with Enable Function SOT-25 Pin Definition: 1. Input 2. Ground 3. Enable 4. Adjustable 5. Output General Description The TS9015 is a low dropout voltage linear regulator. There are device designed specifically for battery-operated systems. Ground current is very small as 50uA(typ), that significantly extending battery life. Low power consumption and high accuracy is achieved through CMOS and programmable fuse technologies. Output voltage is able to adjust from 1V to 6V. The TS9015 consists of a high-precision voltage reference, and error correction circuit, and a current limited output driver. With good transient responses, output remains stable even during load changes. The EN input enables to be turned off, resulting in reduced power consumption. TS9015 have high ripple rejection ratios, a 470pF capacitor from the Bypass pin to ground to reduces noise present on the internal reference, which in turn significantly reduces output noise. If output noise is not a concern, the Bypass pin may be left unconnected. Larger capacitor values can be used, but the results in a longer time period to rate output voltage when power is initially applied. Features ● ● ● ● ● ● ● ● Output current is excess of 300mA Low power consumption: 50uA(typ.) Output voltage ±2% Internal current limit Thermal shutdown Power saving shutdown mode P-MOS output stage with low Rds(on) Adjustable output voltage from 1V to 5.4V Applications ● ● ● ● ● Instrumentation W ireless device Battery powered equipment Electronic scales Cordless phone Ordering Information Part No. TS9015CX5 RF Package SOT-25 Packing 3Kpcs / 7” Reel Block Diagram VIN VOUT Typical Application Circuit EN Gnd Adj VOUT = 0.9 ( 1 + R1 / R2 ) C2 is unnecessary when R1 or R2 < 20K 1/5 Version: C08 TS9015 300mA CMOS LDO 0.9V Adjustable Voltage with Enable Function Absolute Maximum Rating Parameter Input Supply Voltage Enable Input Voltage Output Current Power Dissipation @ TA ≦25 C Thermal Resistance Operating Junction Temperature Range Storage Temperature Range o o Symbol VIN VCE IO PD ӨJA TJ TSTG Limit +2.0 ~ +7 Gnd-0.3 ~ VIN +0.3 500 400 140 -40 ~ +125 -65 ~ +150 Unit V V mA mW o C/W o o C C Lead Soldering Temperature (260 C) 10 Notes 1: Stress above the listed absolute rating may cause permanent damage to the device. 2 Notes 2: ӨJA is measured with the PCB copper area of approximately 1 in (multi-layer) S Electrical Characteristics (Vin=Vout +2V, Ta = 25oC, unless otherwise noted) Parameter Input Voltage Dropout Voltage Output Current Current Limit Ground Pin Current Line Regulation Load Regulation Over Temp. Shutdown Over Temp. Hysterisis Power Supply Rejection Symbol VIN VDROP IO ILIM IGND REGLINE REGLOAD OTS OTH PSRR IO =200mA CO=2.2mF (Note 1) IO =300mA Test Condition 1.0V< VO(NOM ≤2.0V 2.0V< VO(NOM ≤2.8V 2.8V< VO(NOM Min 2.0 ---300 --- Typ -650 450 300 -500 50 --0.2 125 30 60 50 35 30 1 0.9 ---- Max 7 1000 700 500 --85 0.1 0.15 1 -------0.918 VIN 0.4 0.1 Units V mV mA mA uA % % % o o VO =VO(NOM) -2.0% VO >0.96*Vrating IO =1mA to 150mA IO =1mA VIN= VO +1 to VO +2 IO =10mA to 300mA VO < 2.0V VO ≥ 2.0V ------ C C f=100Hz f=1kHz f=10kHz CO =2.2nF -----0.87 dB mVrm s uA V V V uA Output Voltage Noise ADJ Input Bias Current ADJ Reference Voltage EN Input Threshold EN Input Bias Current eN IADJ VREF VEH VEL IEH f=10Hz to 100kHz, IO =10mA IO =10mA IO =10mA VEN= VIN, VIN =2.5V to 7V 1.6 0 -- IEL VEN =0V, VIN =2.5V to 7V --1 uA Note 1: VIN(MIN)=VOUT+VDROPOUT Note 2: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage must be applied before a current source load is applied. 2/5 Version: C08 TS9015 300mA CMOS LDO 0.9V Adjustable Voltage with Enable Function Detailed Description The TS9015 of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection and thermal shutdown. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature o exceeds 150 C, or the current exceeds 300mA. During thermal shutdown, the output voltage remains low. Normal o operation is restored when the junction temperature drops below 100 C. The TS9015 switches from voltage mode to current mode when the load exceeds the rated output current. External Capacitors The TS9015 is stable with an output capacitor to ground of 2.2uF or greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1uF ceramic capacitor with a 10uF Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be at least 0.1uF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A "Quiet" ground termination is desirable. This can be achieved with a "Star" connection. Enable The Enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state, the quiescent current is less than 1mA. This pin behaves much like an electronic switch. 3/5 Version: C08 TS9015 300mA CMOS LDO 0.9V Adjustable Voltage with Enable Function SOT-25 Mechanical Drawing DIM A+A1 B C D E E H L Ө1 S1 SOT-25 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX. 0.09 1.25 0.0354 0.0492 0.30 0.50 0.0118 0.0197 0.09 0.25 0.0035 0.0098 2.70 3.10 0.1063 0.1220 1.40 1.80 0.0551 0.0709 1.90 BSC 0.0748 BSC 2.40 3.00 0.09449 0.1181 0.35 BSC 0.0138 BSC 0º 10º 0º 10º 0.95 BSC 0.0374 BSC Marking Diagram A9 = Device Code Y = Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code 4/5 Version: C08 TS9015 300mA CMOS LDO 0.9V Adjustable Voltage with Enable Function Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 5/5 Version: C08