SULR1730 150mA, Low Noise, Low Dropout Linear Regulator Technical Data Data Sheet N1582, Rev. - Description: The SULR1730 is a low noise, low dropout linear regulator, and is housed in a small SOT-23-5 —————— package. The device is in the “ON” state when the SHDN pin is set to logic high level. A low dropout voltage of 90mV at 50mA load current is performed. It offers high precision output voltage of ±2%. The quality of low quiescent current and low dropout voltage makes this device ideal for battery power applications. The internal reverse bias protection eliminates the requirement for a reverse voltage protection diode. The high ripple rejection and low noise provide enhanced performance for critical applications. The noise bypass pin can be connected an external capacitor to reduce the output noise level. Features: • • • • • • • • Very Low Quiescent Current, 55μA Very Low Dropout Voltage, 90mV @ 50mA. Short Circuit and Thermal Protection. Available in ±2% Output Tolerance. 1.8V to 3.3V Output Voltage with 0.1V Increment. Active Low Shutdown Control. Low Noise. Low Profile Package: SOT-23-5 Applications: • • • • • • • • • Cellular Telephones. Pagers. Personal Communication Equipment. Cordless Telephones. Portable Instrumentation. Portable Consumer Equipment. Radio Control Systems. Low Voltage Systems. Battery Powered Systems. Typical application circuit: Low Noise Low Dropout Linear Regulator • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 150mA, Low Noise, Low Dropout Linear Regulator Technical Data Data Sheet N1582, Rev. - Ordering Information: PIN CONFIGURATION SULR1730-XXXXX PACKING TYPE TB: TUBE TR: TAPING & REEL PACKAGING TYPE D: SOT-23-5 SOT-23-5 TOP VIEW 1: VIN 2: GND —————— 3: S H D N 4: BP 5: VOUT OUTPUT VOLTAGE 18: 1.8V . . 285: 2.85V . . 33: 3.3V The output voltage is available by 0.1V per step. Marking Diagram: Part No. Marking SULR1730-18DTR SULR1730-33DTR SULR1730-285DTR EC18G EC33G EC2JG • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Absolute Maximum Ratings: Supply Voltage ………..................……………………………………………………………………….12V Shutdown Terminal Voltage………………………...............……………………………………….…12V Noise Bypass Terminal Voltage ………………………………………………………………………..5V Operating Temperature Range ...………………………………………………………… –40°C to 85°C Maximum Junction Temperature …………………………………………………………………..125°C Storage Temperature Range ……………………………………………………………..–65°C ~ 150°C Lead Temperature (Soldering) 10 sec. ……………………………………………………………260°C Thermal Resistance Junction to Case SOT-23-5 ………………………………………….…130°C/W Thermal Resistance Junction to Ambient SOT-23-5…………………………………………220°C/W (Assume no ambient airflow, no heatsink) Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Test Circuit Refer to TYPICAL APPLICATION CIRCUIT • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Electrical Characteristics(CIN = 1μF , Cout = 10μF, TJ=25℃, unless otherwise specified)(Note 1) Note 1: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC). • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Typical Performance Characteristics • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Typical Performance Characteristics (Continued) • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Typical Performance Characteristics (Continued) • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Typical Performance Characteristics (Continued) • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Block Diagram Pin Descriptions PIN 1 : VIN PIN 2 : GND - Power supply input pin. Bypass with a 1μF capacitor to GND - Ground pin. —————— PIN 3 : SHDN - Active-Low shutdown input pin. PIN 4 : BP - Noise bypass pin. An external bypass capacitor connecting to BP pin to reduce noises at the output. PIN 5 : VOUT - Output pin. Sources up to 150mA. • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Application Information INPUT-OUTPUT CAPACITORS Linear regulators require input and output capacitors to maintain stability. Input capacitor at 1μF with 1uF aluminum electrolytic output capacitor is recommended. And it should be selected within the Equivalent Series Resistance (ESR) range as shown in the figure 21, 22, 23, and 24. ESR of ceramic capacitor is lower and its electrical characteristics (capacitance and ESR) vary widely over temperature. In general, tantalum or electric output capacitor is suggested for heavy load. Normally, the output capacitor should be 1μF (aluminum electrolytic) at least and rates for operating temperature range. Note that it’s important to check selected manufactures electrical characteristics (capacitance and ESR) over temperature. NOISE BYPASS CAPACITOR 0.1μF bypass capacitor at BP pin reduces output voltage noise. And the BP pin has to connect a capacitor to GND. POWER DISSIPATION The maximum power dissipation of SULR1730 depends on the thermal resistance of its case and circuit board, the temperature difference between the die junction and ambient air, and the rate of airflow. The rate of temperature rise is greatly affected by the mounting pad configuration on the PCB, the board material, and the ambient temperature. When the IC mounting with good thermal conductivity is used, the junction temperature will be low even when large power dissipation applies. The power dissipation across the device is P = I OUT (V -V IN OUT ). The maximum power dissipation is: (TJ - TA) PMAX = (RΘJB + RΘBA) Where TJ-TA is the temperature difference between the die junction and the surrounding air, RθJB is the thermal resistance of the package, and RθBA is the thermal resistance through the PCB, copper traces, and other materials to the surrounding air. As a general rule, the lower temperature is, the better reliability of the device is. So the PCB mounting pad should provide maximum thermal conductivity to maintain low device temperature. GND pin performs a dual function of providing an electrical connection to ground and channeling heat away. Therefore, connecting the GND pin to ground with a large pad or ground plane would increase the power dissipation and reduce the device temperature. • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator Physical Dimensions SOT-23-5 (unit: mm) Note: 1. Refer to JEDEC MO-178AA. 2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not exceed 10 mil per side. 3. Dimension "E1" does not include inter-lead flash or protrusions. 4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. • China - Germany - Korea - Singapore - United States • • http://www.smc-diodes.com - sales@ smc-diodes.com • SULR1730 Technical Data Data Sheet N1582, Rev. - 150mA, Low Noise, Low Dropout Linear Regulator DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the SMC - Sangdest Microelectronics (Nanjing) Co., Ltd sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by means of users’ fail-safe precautions or other arrangement . 3- In no event shall SMC - Sangdest Microelectronics (Nanjing) Co., Ltd be liable for any damages that may result from an accident or any other cause during operation of the user’s units according to the datasheet(s). 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