UNISONIC TECHNOLOGIES CO., LTD L1136 CMOS IC HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR 4 5 1 2 3 SOT-25 DESCRIPTION The UTC L1136 is an extremely low dropout regulator providing designers with low current dissipation, high output voltage accuracy and it is developed based on CMOS technology. The internal transistor with low-resistance provides small dropout voltage and the large output current. Various capacitors, as well as small ceramic capacitors, can be used for this IC more than for the conventional regulator ICs which have CMOS technology. The ON/OFF circuit can guarantee longer sure the battery life. 1 SOP-8 The over-current protection circuit is designed to protect the device from being damaged because of load current while exceeding the capacitance of output transistor. The thermal shutdown protection circuit protects against heat and the rush current control protection circuit and limits the excessive rush current during start-up. The UTC L1136 is universally suitable for power supply of battery-powered devices, power supply of TV, notebook PCs and home electric appliances, and constant-voltage power supply of portable equipment. FEATURES * Output Voltage Ranges from 1.2 to 3.3V Selectable in 0.05V Step * Input Voltage Varies From 1.5 to 5.5V * Low Equivalent Series Resistance Capacitor: Ceramic Capacitor of 4.7μF or More can be used as the I/O Capacitor * High Accuracy Output Voltage: ±1.0%(1.0~1.5V output product: ±15mV) * Low Current Consumption: During operation: 70μA (TYP.), 90μA (MAX.) During shutdown: 1.0μA (TYP.) * Low Dropout Voltage: 70mV (TYP.) * Output current: 600mA (Attention should be paid to the power dissipation of the package when the output current is large.) * High ripple rejection: 70dB (TYP.) @ 1.0kHz * Internal Protection Circuits: Over-Current Protection Circuit, Thermal Shutdown Circuit And Rush Current Control Circuit * Internal Power On/Off Circuit Ensures Longer Battery Life * Special Care should be Taken to the Power Consumption of the Package when the Output Current is Large. ORDERING INFORMATION Ordering Number L1136G-xx-AF5-R L1136G-xx-S08-R Note: xx: Output Voltage, refer to Marking Information. www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd Package SOT-25 SOP-8 Packing Tape Reel Tape Reel 1 of 9 QW-R502-464.g L1136 CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING 4 5 SOT-25 HXXFG 12: 1.2V 15: 1.5V 18: 1.8V 25 :2.5V 33 :3.3V 1 2 Voltage Code 3 SOP-8 PIN CONFIGURATION SOT-25 VOUT 5 1 VIN SOP-8 NC 4 2 ON/OFF 1 8 GND VIN 2 7 GND VOUT 3 6 GND NC 4 5 GND 3 VSS ON/OFF SOT-25 PIN NO. PIN NAME DESCRIPTION 1 VIN Input voltage pin 2 VSS GND pin 3 ON/OFF Shutdown pin 4 NC (Note) No connection 5 VOUT Output voltage pin Note: The NC pin is electrically open and it can be connected to VIN or VSS. SOP-8 PIN NO. 1 PIN NAME ON/OFF 2 VIN 3 VOUT 4 5, 6, 7, 8 NC GND DESCRIPTION Shutdown pin Input supply pin. Supply voltage can range from 2.9V to 6V. Bypass with a 1µF capacitor to GND. Regulator Output. Sources up to 600mA. A small capacitor (2.2mF, typical) is needed from this pin to ground to assure stability. No connection Ground. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 9 QW-R502-464.g L1136 CMOS IC BLOCK DIAGRAM VIN Thermal Shutdown Circuit ON/OFF ON/OFF Circuit Reference Voltage Circuit Overcurrent Protection Circuit - (Note) VOUT + VSS Note : Parasitic diode UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 9 QW-R502-464.g L1136 CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER RATINGS UNIT VSS -0.3 ~ VSS +6 V Input Voltage VSS -0.3 ~ VIN +0.3 V Output Voltage VSS -0.3 ~ VIN +0.3 V SOT-25 360 Power Dissipation PD mW SOP-8 500 Ambient Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -40 ~ +125 °C Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. SYMBOL VIN VON/OFF VOUT ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified.) PARAMETER SYMBOL TEST CIRCUIT 1 Output Voltage (Note 1) VOUT(E) 1 TEST CONDITIONS VIN=VOUT(S)+1.0V 1.0V≤VOUT(S)≤1.5V , IOUT=100mA 1.5V≤VOUT(S)≤4.5V MIN VOUT(S) -0.015 VOUT(S) ×0.99 TYP VOUT(S) VOUT(S) MAX VOUT(S) +0.015 VOUT(S) ×1.01 UNIT V V VIN=5.5V, VOUT(S) VOUT(S) 4.5V≤VOUT(S)≤5.0V V VOUT(S) IOUT=100mA ×0.99 ×1.01 3 VIN≥VOUT(S)+1.0V 1.0V≤VOUT(S)≤4.5V 600(Note 5) mA Output Current IOUT (Note 2) 3 VIN=5.5V 4.5V≤VOUT(S)≤5.0V 600(Note 5) mA 1 1.1V≤VOUT(S)≤1.2V 0.44 0.48 V 1 1.2V<VOUT(S)≤1.3V 0.34 0.38 V 1 1.3V<VOUT(S)≤1.4V 0.24 0.28 V Dropout Voltage VDROP IOUT=200mA (Note 3) 1 1.4V<VOUT(S)≤1.5V 0.14 0.18 V 1 1.5V<VOUT(S)≤2.6V 0.10 0.15 V 1 2.6V<VOUT(S)≤5.0V 0.07 0.10 V VIN=VOUT(S)+1.0V , 1.0V≤VOUT(S)≤4.5V ±130 1 ppm/°C IOUT=100mA Output Voltage VOUT -40≤TA ≤85°C Temperature TA VOUT Coefficient (Note 4) VIN=5.5V, IOUT=100mA 1 ±130 4.5V≤VOUT(S)≤5.0V ppm/°C -40≤TA ≤85°C Notes: 1. VOUT(S): Specified output voltage; VOUT(E): Actual output voltage The output voltage when fixing IOUT (=100mA) and inputting VOUT(S)+1.0V or 5.5V 2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current 3. VDROP = VIN1-(VOUT3×0.98) VOUT3 is the output voltage when VIN = VOUT(S)+1.0V or 5.5V, and IOUT = 200mA. VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input voltage. 4. The change in temperature [mV/°C] is calculated using the following equation. 1 VOUT VOUT [ppm / C ] * 3 1000 [mV / C ] *1 VOUT ( S ) [ V ] * 2 TA VOUT TA *1. Change in temperature of the output voltage *2. Specified output voltage *3. Output voltage temperature coefficient 5. The output current can be at least this value. Due to limitation of the package power dissipation, this value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large. This specification is guaranteed by design. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 9 QW-R502-464.g L1136 CMOS IC ELECTRICAL CHARACTERISTICS (Cont.) PARAMETER Line Regulation Load Regulation Current Consumption During Operation Current Consumption During Shutdown Input Voltage Shutdown Pin Voltage “H” Shutdown Pin Voltage “L” Input Input Shutdown Pin Input Current “H” Shutdown Pin Input Current “L” Ripple Rejection TEST TEST CONDITIONS SYMBOL CIRCUIT 1 VOUT(S)+0.5V≤VIN≤5.5V 1.0V≤VOUT(S)≤3.6V VOUT1 , IOUT=100mA 1 3.6V≤VOUT(S)≤4.8V VIN VOUT 5.3V≤VIN≤5.5V, 4.8V≤VOUT(S)≤5.0V 1 IOUT=100mA VIN=VOUT(S)+1.0V, 1 1.0V≤VOUT(S)≤4.5V 1mA≤IOUT≤200mA ∆VOUT2 VIN=5.5V, 1 4.5V≤VOUT(S)≤5.0V 1mA≤IOUT≤200mA VIN=VOUT(S)+1.0V, ON/OFF pin=ON, 2 no load, 1.0V≤VOUT(S)<1.8V VIN=VOUT(S)+1.0V, ON/OFF pin=ON, 2 ISS1 no load, 1.8V≤VOUT(S)<4.5V VIN=5.5V, ON/OFF pin=ON, 2 no load, 4.5V≤VOUT(S)<5.0V VIN=VOUT(S)+1.0V, 2 ON/OFF pin= OFF, 1.0V≤VOUT(S)≤4.5V no load ISS2 VIN=5.5V, 2 ON/OFF pin= OFF, 4.5V≤VOUT(S)≤5.0V no load VIN VIN=VOUT(S)+1.0V, 4 RL=1.0kΩ, Determined 1.0V≤VOUT(S)≤4.5V by VOUT output level VSH VIN=5.5V, RL=1.0 kΩ, determined by VOUT 4.5V≤VOUT(S)≤5.0V 4 output level VIN=VOUT(S)+1.0V, 4 RL=1.0kΩ, Determined 1.0V≤VOUT(S)≤4.5V by VOUT output level VSL VIN=5.5V,RL=1.0kΩ, Determined by VOUT 4.5V≤VOUT(S)≤5.0V 4 output level 0.2 10 %/V mV 2.5 10 mV 15 30 mV 15 30 mV 90 110 μA 70 90 μA 70 90 μA 1.0 μA 1.0 μA 1.5 5.5 V 1.5 V 1.5 V 0.3 V 0.3 V 4 VIN=5.5V, VON/OFF=5.5V -0.1 0.1 μA ISL 4 VIN=5.5V, VON/OFF=0V -0.1 0.1 μA 5 5 5 VIN=VOUT(S)+1.0V, f=1kHz,IOUT=100mA, ∆VRIP=0.5Vrms VIN=5.5V,f=1kHz, ∆VRIP=0.5Vrms, IOUT=100mA VIN=VOUT(S)+1.0V, ON/OFF pin=ON, VOUT=0V VIN=5.5V, VOUT=0V, ON/OFF pin=ON |RR| 3 ISHORT 3 Thermal Shutdown Detection Temperature Thermal Shutdown Release Temperature 0.05 2.5 ISH 5 Short-Circuit Current MIN TYP MAX UNIT 1.0V≤VOUT(S)≤1.2V 1.2V≤VOUT(S)≤3.0V 3.0V≤VOUT(S)≤4.5V 70 65 60 dB dB dB 4.5V≤VOUT(S)≤5.0V 60 dB 1.0V≤VOUT(S)≤4.5V 200 mA 4.5V≤VOUT(S)≤5.0V 200 mA TSD Junction temperature 150 °C TSR Junction temperature 120 °C UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 9 QW-R502-464.g L1136 CMOS IC TEST CIRCUITS 1. 2. + VOUT VIN A ON/OFF VSS Set to VIN or GND 3. VIN VOUT + A + ON/OFF V VSS Set to power ON 4. 5. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 9 QW-R502-464.g L1136 CMOS IC TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 9 QW-R502-464.g L1136 CMOS IC FUNCTIONAL DESCRIPTION 1. Basic Operation The UTC L1136‘s block diagram is shown in the following. (Fig.1) The UTC L1136 has an error amplifier, and it compares the reference voltage (VREF) with VFB, which is the output voltage resistance-divided by feedback resistors RS and RF. It supplies the gate voltage necessary to maintain the constant output voltage which is not influenced by the input voltage and temperature change, to the output transistor. VIN Parasitic Diode Current Supply VOUT Error Amplifier VREF + RF VFB Reference Voltage Circuit VSS RS Fig.1 2. Output Transistor For L1136, the output transistor is a P-channel MOSFET with low on-resistance. In order to protect against inverse current, make sure that VOUT does not exceed VIN+0.3V, because of a parasitic diode between the VIN and VOUT pin, when the potential of VOUT became higher than VIN. 3. Shutdown Pin (ON/OFF pin) The shutdown pin is used to turn on and turn off this regulator. When the ON/OFF pin is set to the shutdown level, the entire internal circuit stops operating. For reducing the current dissipation, the internal P-channel MOSFET is shut down. The VOUT pin is set to the VSS level by the internal dividing resistor of several hundred kΩ between the VOUT and VSS pin. Note: When the ON/OFF pin voltage is in the range of 0.3V~1.0V, the current dissipation increases. The architecture of the ON/OFF pin can be seen in Fig. 2 Since the ON/OFF pin is neither pulled down nor pulled up internally, do not use it in the floating state. ON/OFF Pin “L”: Power off “H”: Power on Internal Circuits Stop Operate UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw VOUT Pin Voltage VSS level Set value Current Consumption ISS2 ISS1 8 of 9 QW-R502-464.g L1136 CMOS IC FUNCTIONAL DESCRIPTION (Cont.) 4. Over-current protection circuit An over-current protection circuit is contained in the UTC L1136. It aims at preventing the output transistor from damage due to an excessive output current and short circuiting between the VOUT and VSS pin. The current (ISHORT) is internally-fixed to about typically 200mA when short-circuit condition is applied in output pin, and the initial value is restored for the output voltage, if releasing a short circuit once. Caution: This over-current protection circuit does not work as for thermal protection. If this IC maintains short circuiting for a long time inside, take care to the conditions of input voltage and the load current, therefore, under the usage conditions including short circuit, the IC’s consumption will not exceed power dissipation of the package. 5. Thermal shutdown circuit A thermal shutdown circuit is included to prevent this device from being damaged for overheat. The thermal shutdown circuit operates to stop regulating when the junction temperature becomes higher than 150°C (TYP.), and it turns back to normal operation when the junction temperature is lower than 120°C (TYP.). Due to self-heating of the UTC L1136, if the thermal shutdown circuit starts operating, it stops regulating so that the output voltage drops. When the regulating operation stops, the IC’s temperature goes down due to the UTC L1136 does not generate heat itself. When the temperature drops, the thermal shutdown circuit is released to restart regulating, thus this IC generates heat again. Repeating this procedure makes waveform of the output voltage pulse-like form. Stop/Restart of regulation continues unless decreasing either/both of the input voltage and the output voltage for reducing the internal current consumption, or decreasing the ambient temperature. Thermal Shutdown Circuit (Note) Operation: 150°C (Typ.) Release: 120°C (Typ.) Note: Junction Temperature VOUT Pin Voltage VSS level Set value 6. Rush current control circuit The rush current control circuit is designed to protect against the rush current occurs during power-on or when the ON/OFF pin is ON. The rush current is specified to typically 400mA immediately after power-on or from the ON/OFF pin is ON until the specified time (100μs min.) which is set internally. Caution: Due to the thermal shutdown protection circuit, the junction temperature drops to 120°C (TYP.), after stopping regulation, the circuit is released to restart regulation; in this case, pay attention to the period which is to limit rush current to be shorter (10μs min.). UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9 of 9 QW-R502-464.g