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| S5U2167 750mA CMOS Elektronische Bauelemente RoHS Compliant Product Positive Voltage Regulator Description The S5U2167 series positive,linear regulators feature low quiescent current (45A typ.) with low dropout voltage, making them ideal for battery applications. Output voltage are set at the factory and trimmed to 1.5% accuracy.These rugged devices have both Thermal Shutdown and Current Fold-back to prevent device failure under the "Worst" of operating conditions. An additional feature is a "Power Good" detector, which pulls low when the output is out of regulation.The S5U2167 is stable with an output capacitance of 4.7F or greater. Features * Low Temperature Coefficient * Over-Temperature Shutdown REF. A b L4 c L1 E * Power Good Output Function * Very Low Dropout Voltage * Noise Reduction Bypass Capacitor * Short Circuit Current Fold-back * Guaranteed 750mA output * Current Limiting * Power-Saving Shutdown Mode Millimeter Min. Max. 4.40 4.80 0.66 0.91 0.00 0.30 B 0.36 0.5 2.29 2.79 9.80 10.4 REF. c2 L2 D e L Millimeter Min. Max. 1.25 1.45 1.27 REF. 8.6 9.0 1.70 REF. 14.6 15.8 0 8 Applications * PC Peripherals * Wireless Devices * Portable Electronics * Battery Powered Widgets * Instrumentation Functional Block Diagram Typical Application Circuit S5U2167 http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 1 of 6 S5U2167 Elektronische Bauelemente 750mA CMOS Positive Voltage Regulator Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage Operating Ambient Temperature Junction Temperature Max. Junction Temperature Power Dissipation ( EDS Classification Symbol VIN IOUT VOUT Topr Tj Tj Max. PD Ratings 8 PD/(VIN-VO) 1.5~3.3 -40~+85 -40~+125 150 3.0 Unit V mA o o V C C T=100 C) o C W o B Electrical Characteristics TA=25 Parameter Output Voltage Output Current Current Limit Short Circuit Current Load Regulation Dropout Voltage Quiescent Current Ground Pin Current Line Regulation Input Voltage Over Temperature Shutdown Over Temperature Hysterisis unless otherwise noted Condition IO=1mA, VIN=VOUT(T)+2V VO>1.2V VO>1.2V VIN=VOUT(T)+1V, VO < 0.4V VIN=VOUT(T)+2V, IO=1mA to 750mA IO=750mA VO=VOUT(E)-2% VOUT(T)=1.5V VOUT(T)=1.8V VOUT(T) 2.0V (VIN=VOUT (T) +2V, VEN=VIN, CIN=1uF, COUT=4.7uF) Symbol VOUT(E) (Note1) Min -1.5 750 750 -1 -0.15 -0.1 -0.4 Note3 - TYP VOUT(T) (Note2) Max 1.5 1 1000 650 500 70 0.15 0.1 0.4 7 VIN 0.4 1 1 2 84 1.0 0.4 Unit % mA mA mA % mV A A % V : : ppm/ : IO ILIM ISC REGLOAD VDROPOUT IQ IGND REGLINE VIN OTS OTH TC PSRR eN VEH VEL IEH IEL ISD VUV VOV ILC VOL 750 0.2 45 45 0.02 150 30 30 75 55 30 30 0.5 - VIN=VOUT(T)+2V, IO=0mA VIN=VOUT(T)+2V, IO=1mA to 750mA VOUT(T)<2.0V IO=1mA VIN=VOUT (T)+1 to 2.0V VOUT(T)<4.0V (T)+1 VOUT(T)+2 to 4.0V VOUT(T) Output Voltage Temperature Coefficient Power Supply Rejection Output Voltage Noise EN Input Threshold EN Input Bias Current Shutdown Supply Current Output Under Voltage Output Over Voltage PG Leakage Current PG Voltage Low Io=100mA Co=4.7 F (ceramic) f=1kHz f=10kHz f=100kHz 2.0 0 105 - dB Vrms V V A A A % VOUT(T) % VOUT(T) f=10Hz~100kHz, Io=10mA, Co=4.7 F VIN=2.7V to 7V VIN=2.7V to 7V VEN=VIN, VIN=2.7V to 7V VEN= 0V, VIN=2.7V to 7V VIN=5V, VO=0V, VEN Note 1: VOUT (E) =Effective Output Voltage (i.e. the output voltage when "VOUT (T) + 2.0V" is provided at the VIN pin while maintaining a certain IOUT value). 2: VOUT (T) =Specified Output Voltage 3: VIN (MIN) =VOUT+VDROPOUT http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 2 of 6 S5U2167 Elektronische Bauelemente 750mA CMOS Positive Voltage Regulator Ordering Information(contd.) Part Number S5U 2167-15 S5U 2167-25 Marking 7F152 XXXX 7F252 XXXX Output Voltage 1.5V 2.5V Part Number S5U 2167-18 S5U 2167-33 Marking 7F182 XXXX 7F332 XXXX Output Voltage 1.8V 3.3V Detailed Description The S5U 2167 of COMS regulators contain a PMOS pass transistor,voltage reference, error amplifier,over-current protection and thermal shutdown.The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits o become active when the junction temperature exceeds140 C, or the current exceeds 2.2A. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC.The S5U 2167 behaves like a current source when the load reaches 2.2A. However, if the load impedance drops below 0.3 [ , the current drops back to 600mA to prevent excessive power dissipation. Normal operation is restored when the load resistance exceeds of 0.75 [ . External Capacitors The S5U 2167 is stable with an output capacitance to ground of 4.7uF 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 closed proximity to the pins. A "Quiet" ground termination is desirable. This can be achieved with a "Star" connection. Enable When EN pin is pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state, the quiescent current is less than 2uA. This pin behaves much like an electronic switch. 100K[ resistor is necessary between VEN source and EN pin when VEN is high than VIN. (Note: There is no internal pull-up for EN pin. It can not be floating.) Power Good The S5U 2167 includes the Power Good feature. When the output in not within 15% of the specified voltage, it pulls low. This can occur under the following conditions: 1. Input voltage too low. 2. During over-temperature. 3. During over-current. 4. If output is pulled up. ( Note: PG pin is an open-drain output.) ht tp://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 3 of 6 S5U2167 Elektronische Bauelemente 750mA CMOS Positive Voltage Regulator Characteristics Curve http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 4 of 6 S5U2167 Elektronische Bauelemente 750mA CMOS Positive Voltage Regulator http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 5 of 6 S5U2167 Elektronische Bauelemente 750mA CMOS Positive Voltage Regulator ht tp://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 6 of 6 |
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