SSC2166 600mA CMOS Positive Voltage Regulator Elektronische Bauelemente RoHS Compliant Product Description The SSC2166 series of positive,linear regulators feature low quiescent current (30µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOP-8 package is attractive for "Pocket" and "Hand Held" applications. These rugged devices have both Thermal Shutdown and Current Fold-back to prevent device failure under the "Worst" of operating conditions. In applications requiring a low noise, regulated supply, place a 1000pF capacitor between Bypass and ground.The SSC2166 is stable with an output capacitance of 2.2µF or greater. Features * Low Temperature Coefficient * Over-Temperature Shutdown * Factory Pre-set Output Fold-Back * Very Low Dropout Voltage * Noise Reduction Bypass Capacitor * Short Circuit Current Fold-back * Guaranteed 600mA output REF. A B C D E F Millimeter Min. Max. 5.80 4.80 3.80 0 0.40 0.19 6.20 5.00 4.00 8 0.90 0.25 REF. M H L J K G Millimeter Min. Max. 0.10 0.25 0.35 0.49 1.35 1.75 0.375 REF. 45 1.27 TYP. * Current Limiting * Highly Accurate ±1.5% Applications * PC Peripherals * Wireless Devices * Portable Electronics * Battery Powered Widgets * Instrumentation Functional Block Diagram * Cordless Phones * Electronic Scales Typical Application Circuit SSC2166 http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 1 of 5 SSC21666 600mA CMOS Elektronische Bauelemente Positive Voltage Regulator Absolute Maximum Ratings Input Voltage Output Current Parameter Symbol Output Voltage Operating Ambient Temperature Junction Temperature Max. Junction Temperature Thermal Resistance o Power Dissipation ( T=100 C) Unit Ratings 8 VIN IOUT VOUT V mA PD/(VIN-VO) V C o C o C o C /W mW 1.5~3.8 -40~+85 -40~+125 150 Topr Tj Tj Max. θja PD o 123.7 810 B EDS Classification o Electrical Characteristics Ta=25 C unless otherwise noted Parameter Symbol 1 Min. Output Voltage VOUT (E) -1.5% Output Current Current Limit Load Regulation IO ILIM REGLOAD 600 600 Dropout Voltage VDROPOUT Quiescent Current Line Regulation IQ REGLINE Input Voltage VIN Over Temperature Shutdown OTS Over Temperature Hystersis Output Voltage Temperature Coefficient 4 Short Circuit Current OTH Power Supply Rejection Output Voltage Noise EN Input Threshold EN Input Bias Current Shutdown Supply Current _ _ Typ. 2 VOUT (T) V VIN=VOUT(T)+2V,1o=1mA 800 _ VIN=VOUT(T)+2V,VO>1.2V mA VIN=VOUT(T)+2V,VO>1.2V 0.2 1 1900 1400 800 600 % VIN=VOUT(T)+2V,Io=1mA~ 600mA _ _ _ _ 30 3 Note _ _ _ _ 0.02 _ 1.5% mV 50 0.2 uA 0.15 0.1 % 7 VIN=VOUT(T)+1V,Io=0mA 1.3V ≤ VOUT(T)≤1.4V Io=1mA 1.4V< VOUT(T)≤ 2.0V VIN=VOUT(T)+ 1 to VOUT(T)+2 2.0V<VOUT(T) V _ o 30 _ o 150 1.3V ≤ VOUT(T) ≤1.4V Io=600mA 1.4V<VOUT(T) ≤ 2.0V 2.0V<VOUT(T) ≤ 2.8V Vo=VOUT(E)-2% 2.8V<VOUT(T) C C TC _ 30 _ ppm/ C ISC _ 300 600 mA dB PSRR Condition mA _ _ -0.2 -0.15 -0.1 Unit _ _ _ _ Max. _ 75 _ _ 55 _ _ 30 _ eN _ 30 _ VEH 2 _ VEL 0 _ VIN 0.4 IEH _ _ IEL _ _ 0.5 ISD _ 0.5 0.1 0.1 o uVrms V uA uA VIN=VOUT(T)+1V,VOUT<0.8V Io=100mA f=1kHz Co=2.2uF f=10kHz (ceramic) f=100Hz CBYP=0.01uF f=10Hz~100kHz, Io=10mA CO=2.2uF,CBYP=0.01uF VIN=2.7V to 7V VEN=VIN,VIN=2.7V to 7V VEN=0V,VIN=2.7V to 7V VIN=5V,Vo=0V,VEN<VEL 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+V DROPOUT 4: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage must be applied before a current source load is applied. http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 2 of 5 SSC2166 600mA CMOS Elektronische Bauelemente Positive Voltage Regulator Ordering Information(contd.) Part Number SSC2166-15 SSC2166-25 SSC2166-28 SSC2166-29 SSC2166-31 SSC2166-34 SSC2166-36 SSC2166-38 Marking 6F152 XXXX 6F252 XXXX 6F282 XXXX 6F292 XXXX 6F312 XXXX 6F342 XXXX 6F362 XXXX 6F382 XXXX Output Voltage Part Number 1.5V SSC2166-18 2.5V SSC2166-27 2.8V SSC2166-2H 2.9V SSC2166-30 3.1V SSC2166-33 3.4V SSC2166-35 3.6V SSC2166-37 Marking Output Voltage 6F182 XXXX 6F272 XXXX 6F2H2 XXXX 6F302 XXXX 6F332 XXXX 6F352 XXXX 6F372 XXXX 1.8V 2.7V 2.85V 3.0V 3.3V 3.5V 3.7V 3.8V Detailed Description The SSC2166 series 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 become active when the junction temperature exceeds 150oC, or the current exceeds 600mA. During thermal shutdown , the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC. The SSC2166 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The SSC2166 also incorporates current fold-back to reduce power dissipation when the output is short circuited. The feature becomes active when the output drops below 0.8 V, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8 V. External Capacitors The SSC2166 is stable with an output capacitance to ground of 2.2uF 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. A third capacitor can be connected between the BY-PASS pin and GND. This capacitor can be a low cost Polyester Film variety between the value of 0.001~0.01uF. A large capacitor improves the AC ripple rejection,but also makes the output come up slowly. This "Soft" turn-on is desirablein some applications to limit turn-on surges. All capacitors should be placed in close 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. ht tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 3 of 5 SSC2166 Elektronische Bauelemente 600mA CMOS Positive Voltage Regulator Characteristics Curve http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 4 of 5 SSC2166 Elektronische Bauelemente http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A 600mA CMOS Positive Voltage Regulator Any changing of specification will not be informed individual Page 5 of 5