TS2938CS

TS2938/A 500mA Ultra Low Dropout Fixed Voltage Regulator with Inhibit Pin assignment: 1. Input 2. Inhibit 3. Gnd 4. N/C 5. Output Pin assignment: 1. Output 8. Input 2. Gnd 7. Gnd 3. Gnd 6. Gnd 4. N/C 5. Inhibit Low Dropout Voltage 0.6V max. Logic Inhibit Control General Description The TS2938/A series of fixed-voltage monolithic micro-power voltage regulators is designed for a wide range of applications. This device excellent choice of use in battery-power application. Furthermore, the quiescent current increases on slightly at dropout, which prolongs battery life. This series of fixed-voltage regulators features very low ground current (100uA Typ.), very low drop output voltage (Typ. 60mV at light load and 600mV at 500mA) and output inhibit control. This includes a tight initial tolerance of 1% (TS2938A) and 2% (TS2938), extremely good line regulation of 0.05% typ., and very low output temperature coefficient. This series is offered in 5-pin of TO-252-5L and 8-pin SOP-8 package. Features Dropout voltage typically 0.5V @Io=500mA Output current up to 500mA Logic control electronic shutdown Output voltage trimmed before assembly -18V Reverse peak voltage +30V Input over voltage protection +60V Transient peak voltage Low quiescent current 100uA typ. (ON mode), Internal current limit Thermal shutdown protection Block Diagram Ordering Information Part No. TS2938CP5xx TS2938ACP5xx TS2938CSxx -20 ~ +85 oC SOP-8 Operation Temp. (Ambient) TO-252-5L Package TS2938ACSxx Note: Where xx denotes voltage option, available are 8.0V, 5.0V, 3.3V and 2.5V. Contact factory for additional voltage options. Absolute Maximum Rating (Note 1) Input Supply Voltage (Note 2) Operation Input Supply Voltage Power Dissipation (Note 3) Operating Junction Temperature Range Storage Temperature Range Lead Soldering Temperature (260 C) TO-252 / SOP-8 Package 5 S o Vin Vin (operate) PD TJ TSTG -18 ~ +60 26 Internally Limited -40 ~ +125 -65 ~ +150 V V W o o C C TS2938/A 1-5 2004/09 rev. A Electrical Characteristics Vin = Vout + 1V, IL = 5mA, Co = 6.8uF, Ta = 25 oC, Vinhibit = 0V, unless otherwise specified. Parameter Output Voltage Output Voltage Input Supply Voltage Output Voltage Temp. Coefficient Line Regulation Load Regulation Dropout Voltage (Note 4) o Conditions Ta = 25 C Ta = -25 ~ 85 oC TS2938A TS2938 TS2938A TS2938 Min 0.990|Vo| 0.980|Vo| 0.980|Vo| 0.960|Vo| --- Typ 8.0 / 5.0 3.3 / 2.5 Max 1.010|Vo| 1.020|Vo| 1.020|Vo| 1.040|Vo| Unit v V V V ppm/ oC % % mV uA mA A uVrms dB -50 0.05 0.2 100 300 500 100 12 25 0.9 500 350 120 -- 26 150 0.5 1.0 200 400 600 200 20 50 1.3 ----- Vo+1V ≤ Vin ≤ 26V 5mA ≤ IL ≤ 500mA IL=100mA IL=300mA IL=500mA ------------60 Quiescent Current (Note 5) IL=100uA IL=300mA IL=500mA Short Circuit Current (Note 6) Output Noise, 10Hz to 100KHz, IL=10mA Ripple Rejection Ratio Shutdown Input Input Logic Voltage Shutdown Pin Input Current Regulator Output Current in Shutdown Vout=0 CL=2.2uF CL=3.3uF CL=33uF Io=350mA, f=120Hz, Co=100uF, Vin=Vo+3V+2Vpp Low (Regulator ON) High (Regulator OFF) Vinhibit = 2.4V Vinhibit = 26V Vinhibit ≤ 2V, Vin ≤ 26V, Vout = 0V -2.0 ---- 1.3 -30 450 -- 0.7 -50 600 200 V uA Thermal Performance Condition Thermal Resistance Junction to Ambient TO-252 Package type Typ Unit o 150 C/W SOP-8 170 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. Note 2: Maximum positive supply voltage of 60V must be limited duration (