TS2938CS50RL

TS2938 Taiwan Semiconductor 500mA Ultra Low Dropout Voltage Regulator With Inhibit Function DESCRIPTION FEATURES The TS2938 series of fixed-voltage monolithic micro- ● Dropout voltage typically 0.5V @Io=500mA power voltage regulators is designed for a wide range of ● Output current up to 500mA applications. This device excellent choice of use in ● Logic Control Electronic Shutdown battery-power application. Furthermore, the quiescent ● Output voltage trimmed before assembly current increases on slightly at dropout, which prolongs ● -18V Reverse peak voltage battery life. This series of fixed-voltage regulators ● +30V Input over voltage protection features very low ground current (200µA Typ.), very low ● +60V Transient peak voltage drop output voltage (Typ. 60mV at light load and 600mV ● Low Quiescent Current 100µA (Typ.) (On Mode) at 500mA) and output inhibit control. This includes a ● Internal current limit tight initial tolerance of 2%, extremely good line ● Thermal shutdown protection regulation of 0.05% typ., and very low output temperature coefficient. APPLICATION ● SOP-8 Telecommunication Pin Definition: 1. Output 2. Ground 3. Ground 4. NC 5. 6. 7. 8. Inhibit Ground Ground Input Notes: Moisture sensitivity level: level 3. Per J-STD-020 TYPICAL APPLICATION CIRCUIT Document Number: DS_P0000209 1 Version: G15 TS2938 Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS (Note 1) PARAMETER Input Supply Voltage SYMBOL LIMIT UNIT VIN -18 ~ +60 V VOPR 26 V PD Internally Limited (Note 2) Operation Input Supply Voltage (Note 3) Power Dissipation Operating Junction Temperature Range TJ TSTG Storage Temperature Range W -40 ~ +125 o -65 ~ +150 o C C THERMAL PERFORMANCE PARAMETER Junction to Case Thermal Resistance SYMBOL LIMIT UNIT RӨJC 20 °C/W Notes: RӨJA is the sum of the junction-to-case and case-to-ambient thermal resistances. The case thermal reference is defined at the solder mounting surface of the drain pins. RӨJA is guaranteed by design while RӨCA is determined by the user’s board design. RӨJA shown below for single device operation on FR-4 PCB in still air. ELECTRICAL SPECIFICATIONS o (VIN=VOUT+1V, IL=5mA, CO=10µF, TA=25 C, unless otherwise noted) PARAMETER CONDITIONS TA=25oC Output Voltage TA=25~85oC Output Voltage Temperature Coefficient MIN TYP MAX UNIT 3.23 3.3 3.36 4.9 5 5.1 3.17 3.3 3.43 4.8 5 5.2 -- 50 150 ppm/ C V o Line Regulation Vo+1V ≤ VIN ≤ 26V -- 0.05 0.5 % Load Regulation 5mA ≤ IL ≤ 500mA -- 0.2 1.0 % IL=100mA -- 100 200 IL=300mA -- 300 400 IL=500mA -- 500 600 IL=100µA -- 200 300 IL=300mA -- 12 20 IL=500mA -- 25 50 VOUT =0 -- 0.9 1.3 CL=2.2µF -- 500 -- CL=3.3µF -- 350 -- CL=33µF -- 120 -- Ratio 60 -- -- (Note 4) Dropout Voltage Quiescent Current (Note 5) Short Circuit Current (Note 6) Output Noise, 10Hz to 100KHz, IL=10mA Ripple Rejection Document Number: DS_P0000209 2 mV µA mA A µVrms dB Version: G15 TS2938 Taiwan Semiconductor ELECTRICAL SPECIFICATIONS o (VIN=VOUT+1V, IL=5mA, CO=10µF, TA=25 C, unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX -- 1.3 0.7 2.0 -- -- VINHIBIT = 2.4V -- 30 50 VINHIBIT = 26V -- 450 600 -- -- 200 UNIT Shutdown Input Low (Regulator ON) Input Logic Voltage Shutdown Pin Input Current Regulator Output Current in Shutdown High (Regulator OFF) VINHIBIT ≤ 2V, VIN ≤ 26V VOUT=0V V µA Note: 1. Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed specifications and test conditions see the electrical characteristics. 2. Maximum positive supply voltage of 60V must be limited duration (