Preliminary TS9020 200mA Dual Channel CMOS LDO with Enable Function SOT-26 Pin Definition: 1. VOUT 1 6. Enable 1 2. VIN 5. Ground 3. VOUT 2 4. Enable 2 General Description The TS9020 is a high accurately, low noise, high ripple rejection ratio, low dropout, dual CMOS LDO voltage regulators with enable function. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The TS9020 has the soft start function to suppress the inrush current. The current limit is over 250mA per channel and also operates as a short protection for the output current limiter. The output voltage for each regulator is set independently by metal trimming. The TS9020 is fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequency. Features ● ● ● ● ● ● ● ● ● ● Ordering Information Input voltage range: 2.5V~6V VDROP typically 150mV@Io=100mA (Vout≥2.8V) Varied fixed output voltage combinations Output current: 200mA/channel (typ.) Internal current limit and Short circuit protection Thermal shutdown Standby current: 1uA (typ) Power saving shutdown mode Fast transient response Low ESR capacitor compatible Part No. Applications ● ● ● ● Package Packing TS9020xxCX6 RF SOT-25 3Kpcs / 7” Reel Note: Where xx denotes voltage option. Available are: 1= 1.2V, A= 1.5V, D= 1.8V, K= 2.5V, N= 2.8V, P= 3.0V, S= 3.3V Contact factory for additional voltage options. st * 1 x denote for VOUT 1 voltage code nd * 2 x denote for VOUT 2 voltage code Typical Application Circuit Instrumentation Wireless device Battery powered equipment Portable Devices Block Diagram Name VIN GND EN1 EN2 VOUT1 VOUT2 1/6 Description Power Input Ground VOUT1 Enable control pin VOUT2 Enable control pin Output Voltage 1 Output Voltage 2 Version: Preliminary Preliminary TS9020 200mA Dual Channel CMOS LDO with Enable Function Absolute Maximum Rating Parameter Symbol Limit Unit VIN GND -0.3 ~ +6.5 V VOUT 1 / VOUT 2 GND -0.3 ~ VIN +0.3 V EN1 / EN2 GND -0.3 ~ VIN +0.3 V IOUT 1+ IOUT 2 700 mA PD 250 Input Supply Voltage Output Voltage Enable Input Voltage Output Current Power Dissipation Thermal Resistance – Junction to Case ӨJC mW 180 o C/W o C/W Thermal Resistance – Junction to Ambient ӨJA 250 Operating Temperature Range TOPR -40 ~ +85 o C -40 ~ +125 o C Junction Temperature Range TJ o Storage Temperature Range TSTG -65 ~ +150 C 2 Notes: ӨJA is measured with the PCB copper area of approximately 1 in (multi-layer). That need connect to GND pin. Electrical Characteristics (Ta = 25oC, unless otherwise noted) Parameter Symbol Input Voltage VIN Output Voltage Accuracy Dropout Voltage ∆VOUT VDROP Test Condition Min Typ Max Units (Note 1) 2.5 -- 6 V IOUT =1mA, VIN= 5V, VOUT>2V -2 -- +2 % IOUT =1mA, VIN= 5V, VOUT≤2V -0.04 -- 0.04 V VOUT=1.5V -- 1000 1200 VOUT=1.8V -- 700 900 VOUT>2.5V -- 300 400 IO =200mA VO =VO(NOM) -2% Quiescent Current ICC IOUT 1,2=0mA, VIN= 5V Current Limit ILIM (Note 2) Short Circuit Current ISHORT mV -- 60 -- uA 250 -- -- mA VOUT <1V, each channel -- 150 -- mA Line Regulation REGLINE IOUT =1mA , VIN= VOUT +1V to 6V -- 0.2 0.3 %/V Load Regulation REGLOAD IOUT =1~100mA, VIN= VOUT +1V -- 0.01 0.03 %/mA f=120Hz, IOUT =30mA -- 60 -- dB -- 150 -- o C C Power Supply Rejection Over Temp. Shutdown Over Temp. Hysterisis Shutdown Current EN Input Threshold PSRR OTS -- 40 -- o -- 1 2 uA VEH 2 -- -- V VEL -- -- 0.8 V OTH ISD IOUT 1,2=0mA, VIN= 5V, VEN1,2= 0V Output Voltage IOUT =30mA (Note 4) -±100 -PPM/ºC Temperature Coefficient Note1: VIN(MIN)=VOUT+VDROPOUT Note2: Current limit is measured at constant junction temperature by using pulsed testing with a low ON time. Note3: Regulation is measured at constant junction temperature by using pulsed testing with a low ON time. Note4: Guaranteed by design. 2/6 Version: Preliminary Preliminary TS9020 200mA Dual Channel CMOS LDO with Enable Function Function Description The TS9020 is a highly accurate, dual, low noised, CMOS LDO voltage regulators with enable function. The output voltage for each regulator is set independently by fuse trimming. As illustrated in function block diagram, it consists of a reference, error amplifier, a P-channel pass transistor, an ON/OFF control logic and an internal feedback voltage divider. The band gap reference is connected to the error amplifier, which compares the reference with the feedback voltage and amplifies the voltage difference. If the feedback voltage is lower than the reference voltage, the passtransistor gate is pulled lower, which allows more current to pass to the VOUT pin and increases the output voltage. If the feedback voltage is too high, the pass transistor gate is pulled up to decrease the output voltage. The output voltage is feed back through an internal resistive divider connected to VOUT pin. Additional blocks include an output current limiter, thermal sensor, and shutdown logic. Enable EN1 and EN2 pin start and stop the corresponding outputs independently. When the EN pin is switched to the power off level, the operation of all internal circuit stops, the build-in P-channel MOSFET output transistor between pins VIN and VOUT is switched off, allowing current consumption to be drastically reduced. Dropout Voltage A regulator’s minimum input-output voltage differential, or dropout voltage, determines the lowest usable supply voltage. The TS9020 use a P- channel MOSFET pass transistor, its dropout voltage is function of drain-to-source onresistance RDS(ON) multiplied by the load current VDROP = VIN-VOUT = RDSON * IOUT Current Limit Each channel of TS9020 includes a fold back current limiter. It monitors and controls the pass transistor’s gate voltage, estimates the output current, and limits the output current within 250mA. Thermal Shutdown Protection Thermal Shutdown protection limits total power dissipation of TS9020. When the junction temperature exceeds TJ= +150°C, a thermal sensor turns off the pass transistor, allowing the IC to cool down. The thermal sensor turns the pass transistor on again after the junction temperature cools down by 40°C, resulting in a pulsed output during continuous thermal shutdown conditions. Thermal shutdown protection is designed to protect the TS9020 in the event of fault conditions. For continuous operation, the absolute maximum operating junction temperature rating of TJ=+125°C should not be exceeded. Application Information Like any low-dropout regulator, the TS9020 requires input and output decoupling capacitors. The device is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance (see Capacitor Characteristics Section). Please note that linear regulators with a low dropout voltage have high internal loop gains which require care in guarding against oscillation caused by insufficient decoupling capacitance. Input Capacitor The TS9020 is designed specifically to work with very small ceramic output capacitors. A ceramic capacitor (temperature characteristics X7R, X5R) in 1µF is suitable for the TS9020 application. The recommended minimum capacitance for the device is 1µF, X5R or X7R dielectric ceramic, between VOUT and GND for stability, but it may be increased without limit. Higher capacitance values help to improve transient. The output capacitor’s ESR is critical because if forms a zero to provide phase lead which is required for loop stability. 3/6 Version: Preliminary Preliminary TS9020 200mA Dual Channel CMOS LDO with Enable Function Application Information (continue) Input Capacitor An input capacitance of 1µF is required between input pin and ground directly (the amount of the capacitance may be increased without limit). The input capacitor must be located less than 1cm from the device to assure input stability. A lower ESR capacitor allows the use of less capacitance, while higher ESR type (like aluminum electrolytic) requires more capacitance. Capacitor types (aluminum, ceramic and tantalum) can be mixed in parallel, but the total equivalent input capacitance/ ESR must be defined as above to stable operation. There are no requirements for the ESR on the input capacitor, but tolerance and temperature coefficient must be considered when selecting the capacitor to ensure the capacitance will be 1µF over the entire operating temperature range. Thermal Considerations The TS9020 series can deliver a current of up to 200mA/channel over the full operating junction temperature range. However, the maximum output current must be debated at higher ambient temperature to ensure the junction temperature does not exceed 125°C. With all possible conditions, the junction temperature must be within the range specified under operating conditions. Power dissipation can be calculated based on the output current and the voltage drop across regulator. PD = (VIN - VOUT) IOUT + VIN IGND The final operating junction temperature for any set of conditions can be estimated by the following thermal equation: PD(MAX) = (TJ(MAX) - TA) / θJA Where TJ(MAX) is the maximum junction temperature of the die (125°C) and TA is the maximum ambient temperature. The junction to ambient thermal resistance (θJA) SOT-26 package at recommended minimum footprint is 250°C/W. Visit our website in which “Recommended Footprints for Soldering Surface Mount Package” for detail. 4/6 Version: Preliminary Preliminary TS9020 200mA Dual Channel CMOS LDO with Enable Function SOT-26 Mechanical Drawing DIM 5/6 SOT-26 DIMENSION MILLIMETERS INCHES MIN MIN TYP MAX TYP A 0.95 BSC 0.0374 BSC A1 1.9 BSC MAX B 2.60 2.80 3.00 0.0748 BSC 0.1024 0.1102 0.1181 C 1.40 1.50 1.70 0.0551 0.0591 0.0669 0.1142 0.1220 0.0433 0.0472 D 2.80 2.90 3.10 0.1101 E 1.00 1.10 1.20 0.0394 F 0.00 -- 0.10 0.00 0.0157 0.0197 0.0039 G 0.35 0.40 0.50 0.0138 H 0.10 0.15 0.20 0.0039 0.0059 0.0079 I 0.30 -- 0.60 0.0118 -- 0.0236 J 5º -- 10º 5º -- 10º Version: Preliminary Preliminary TS9020 200mA Dual Channel CMOS LDO 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. 6/6 Version: Preliminary