UNISONIC TECHNOLOGIES CO., LTD UC621XX CMOS IC BOOSTING VOLTAGE REGULATORS DESCRIPTION The UTC UC621XX is a positive output voltage regulator that can supply up to 1A of output current using an external transistor. Low power and high accuracy are achieved through CMOS process and metal fuses trimming technologies. The series consists of a high precision voltage reference, an error correction circuit and a short-circuit protected output driver. In stand-by mode, supply current can be dramatically cut. Since the input-output voltage differential is small, loss control efficiency is good. The UTC UC621XX is particularly suited for use with battery operated portable products, and products where supply current regulation is required. FEATURES * Ultra Small Input-Output Voltage Differential : 100mA of output current is available with a differential of 0.1V. (Performance depends on the external transistor characteristics.) * Maximum Output Current : 1A * Output Voltage Range : 2V ~ 6V in 0.1V increments * Highly Accurate : Set-up voltage ±2% * Low Power Consumption : Typ.50μA (VOUT = 5.0V) : Typ.0.2μA (Stand-by) * Output Voltage Temperature Characteristics: Typ. ±100ppm/℃ * Input Stability : Typ.0.1%/V ORDERING INFORMATION Ordering Number UC621XXG-AF5-R Note: xx: Output Voltage, refer to Marking Information. www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd Package SOT-25 Packing Tape Reel 1of 13 QW-R052-028.D UC621XX CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-25 30:3.0V 33:3.3V 40:4.0V 50:5.0V MARKING 4 5 62XXG Voltage Code 1 PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 3 FUNCTION Ground Supply voltage input Regulated voltage output Base current control Chip enable FUNCTION SERIES UTC UC621XX PIN NAME VSS VIN VOUT EXT CE 2 CE H L OUTPUT VOLTAGE ON OFF BLOCK DIAGRAM VOUT VDD EXT Current Limit CE + Voltage Reference Vss UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 13 QW-R502-028.D UC621XX CMOS IC ABSOLUTE MAXIMUM RATINGS (TA=25°C, Unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 12 V Output Voltage VOUT Vss-0.3 ~ VIN+0.3 V CE Input Voltage VCE Vss-0.3 ~ VIN+0.3 V EXT Output Voltage VO(EXT) 12 V EXT Output Current IEXT 50 mA Power Dissipation PD 150 mW Junction Temperature TJ +125 °C Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -40 ~ +150 °C Notes: 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. 2. The device is guaranteed to meet performance specification within 0°C ~+70°C operating temperature range and assured by design from -20°C ~+85°C. ELECTRICAL CHARACTERISTICS (TA=25°C, Unless otherwise specified) UC62130( VOUT(T) =3.0V) PARAMETER Output Voltage (Note2) Input Voltage EXT Output Voltage High CE Level Voltage Low Load Stability (Note 4) Input-Output Voltage Differential Maximum Output Current(Note 4) Supply Current1 Supply Current2 EXT Leakage Current High CE Level Current Low Input Stability (Note 4) Output Voltage Temperature Characteristics (Note 4) UC62133(VOUT(T)=3.3V) PARAMETER Output Voltage (Note2) Input Voltage EXT Output Voltage High CE Level Voltage Low Load Stability (Note 4) Input-Output Voltage Differential Maximum Output Current (Note 4) Supply Current1 Supply Current2 EXT Leakage Current High CE Level Current Low Input Stability (Note 4) Output Voltage Temperature Characteristics (Note 4) SYMBOL VOUT(E) VIN VEXT VCEH VCEL △VOUT VDIFF IOUT(MAX) Iss1 Iss2 ILEAK ICEH ICEL △VOUT △VIN×VOUT △VOUT △TOPR×VOUT SYMBOL VOUT(E) VIN VEXT VCEH VCEL △VOUT VDIFF IOUT(MAX) Iss1 Iss2 ILEAK ICEH ICEL △VOUT △VIN×VOUT △VOUT △TOPR×VOUT TEST CONDITIONS IOUT =50mA, VIN=4.0V TYP 3.000 MAX 3.060 8 8 -0.05 0.6 80 0.5 0.1 0 UNIT V V V V V mV mV mA μA μA μA μA μA 0.1 0.3 %/V 1.5 VIN =4.0V, 1mA≤IOUT≤100mA IOUT =100mA VIN=4.0V VIN =4.0V, VCE =VSS VIN =8.0V, VCE =VIN VCE =VIN VCE =VSS 100 1000 50 -0.2 IOUT =10mA, -20°C ≤TOPR≤85°C TEST CONDITIONS IOUT =50mA, VIN =4.3V 0.25 60 -60 IOUT =50mA, 4.0V≤VIN≤8.0V ±100 MIN 3.234 TYP 3.300 ppm/°C MAX 3.366 8 8 -0.05 0.6 80 0.5 0.1 0 UNIT V V V V V mV mV mA μA μA μA μA μA 0.1 0.3 %/V 1.5 VIN =4.3V, 1mA≤IOUT≤100mA IOUT =100mA VIN =4.3V VIN =4.3V, VCE =VSS VIN =8.0V, VCE =VIN VCE =VIN VCE =VSS IOUT =50mA, 4.3V≤VIN≤8.0V IOUT =10mA, -20°C ≤TOPR≤85°C UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 2.940 0.25 60 -60 100 1000 50 -0.2 ±100 ppm/°C 3 of 13 QW-R502-028.D UC621XX CMOS IC ELECTRICAL CHARACTERISTICS(Cont.) UC62140 (VOUT(T)=4.0V) PARAMETER Output Voltage (Note2) Input Voltage EXT Output Voltage High CE Level Voltage Low Load Stability (Note 4) Input-Output Voltage Differential Maximum Output Current(Note 4) Supply Current1 Supply Current2 EXT Leakage Current High CE Level Current Low Input Stability (Note 4) Output Voltage Temperature Characteristics (Note 4) SYMBOL VOUT(E) VIN VEXT VCEH VCEL △VOUT VDIFF IOUT(MAX) Iss1 Iss2 ILEAK ICEH ICEL △VOUT △VIN×VOUT △VOUT △TOPR×VOUT TEST CONDITIONS IOUT =50mA, VIN =5.0V MIN 3.92 TYP 4.000 MAX 4.08 8 8 -0.05 0.6 80 0.5 0.1 0 UNIT V V V V V mV mV mA μA μA μA μA μA 0.1 0.3 %/V 1.5 VIN =5.0V, 1mA≤IOUT≤100mA IOUT =100mA VIN =5.0V VIN =5.0V, VCE =VSS VIN =8.0V, VCE =VIN VCE =VIN VCE =VSS IOUT =50mA, 5.0V≤VIN≤8.0V IOUT =10mA, -20°C ≤TOPR≤85°C 0.25 60 -60 100 1000 50 -0.2 ±100 ppm/°C UC62150 (VOUT(T) =5.0V) PARAMETER Output Voltage (Note2) Input Voltage EXT Output Voltage High CE Level Voltage Low Load Stability (Note 4) Input-Output Voltage Differential Maximum Output Current(Note 4) Supply Current1 Supply Current2 EXT Leakage Current High CE Level Current Low SYMBOL TEST CONDITIONS MIN TYP MAX UNIT VOUT(E) IOUT =50mA, VIN =6.0V 4.900 5.000 5.100 V VIN 8 V VEXT 8 V VCEH 1.5 V VCEL 0.25 V △VOUT VIN =6.0V, 1mA ≤ IOUT ≤100mA -60 60 mV VDIFF IOUT =100mA 100 mV IOUT(MAX) VIN =6.0V 1000 mA Iss1 VIN=6.0V, VCE =VSS 0.6 μA Iss2 VIN=8.0V, VCE =VIN 50 80 μA ILEAK 0.5 μA ICEH VCE =VIN 0.1 μA ICEL VCE =VSS -0.2 -0.05 0 μA △VOUT Input Stability (Note 4) IOUT=50mA, 6.0V≤VIN ≤8.0V 0.1 0.3 %/V △VIN×VOUT Output Voltage Temperature △VOUT IOUT =10mA, -20°C ≤TOPR ≤85°C ±100 ppm/°C Characteristics (Note 4) △TOPR×VOUT Notes: 1. VOUT(T)=Specified Output Voltage. 2. VOUT(E) =Effective Output Voltage (i.e. the output voltage when "VOUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IOUT value). 3. VDIFF = {VIN1 -VOUT1 } *VOUT1 = A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input. *VIN1 = The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. 4. The characteristics for those parameters marked with an asterisk* are liable to vary depending on which transistor is used. Please use a transistor with a low saturation voltage level and hFE equal to 100 or more. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 13 QW-R502-028.D UC621XX CMOS IC TYPICAL APPLICATION CIRCUIT OPERATIONAL EXPLANATION Functional Description Output voltage (VOUT) can be fixed by revising the external transistor's base current. This can be done by comparing the detected voltage level and the set voltage power supply level. DIRECTIONS FOR USE Suggestions for External Comporients 1. PNP Transistor The selection of a transistor should take into account output current, input voltage and power dissipation for each specific application. It is recommended that a transistor that has a low output saturated voltage (VCE) and high hFE characteristics be used. 2. RB Resistor Although the IC unit is protected by a base current remitter circuit, it is recommended that a resistor (RB) be connected between the transistor's base and the IC's EXT pin to protect the transistor. Required output current can be calculated using the following equation although characteristic variations and conditions of use should be carefully checked before use. The following equation also indicates the conditions needed to obtain IOUT (max.) at VIN (min.). However, the larger the input current, the larger the output current (IOUT) that can be obtained. VIN(MIN) -1.2(V) RB 0.7(V) RBE IOUT(MAX) hFE 3. RBE Resistor, CL Capacitor To prevent oscillation due to output load variation, use of a phase compensation capacitor CL is recommended. Please use a Tantalum capacitor of at least 10μF. Please also use an RBE resistor of less than 47kΩ. An RBE resistor of between 20kΩ and 47kΩ is recommended for less power consumption. 4. Input Impedance In order to control oscillation brought about as a result of impedance at the power supply line, connect a capacitor of 10μF or more (Tantalum) between the external transistor's emitter and the ground pin. Special Note 1. Protection Circuit The built-in protect circuit is to protect the IC only. Therefore to prevent output shorts and overshoot current through the transistor, use of a resistor RB or an overshoot current protection circuit is recommended. Care should also be taken with the transistor's power dissipation. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 13 QW-R502-028.D UC621XX CMOS IC TYPICAL CHARACTERISTICS Output Voltage, VOUT (V) Output Voltage, VOUT (V) Output Voltage, V OUT (V) Output Voltage, V OUT (V) (1) OUTPUT VOLTAGE vs. OUTPUT CURRENT (2) OUTPUT VOLTAGE vs. INPUT VOLTAGE UC62130 3.05 IOUT =1mA 100mA 3.00 500 mA 2.95 2.90 2.85 3.2 TOPR =25℃ C L=10 µF (tantalum) Output Voltage, VOUT (V) Output Voltage, V OUT (V) 3.10 UC62130 3 4 5 6 Input Voltage, VIN (V) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TOPR =25℃ C L=10µF (tantalum) 3.0 2.8 I OUT =1mA 500mA 2.6 100 mA 2.4 2.2 2.5 3.0 3.5 Input Voltage, V IN (V) 6 of 13 QW-R502-028.D UC621XX TYPICAL CHARACTERISTICS(Cont.) UC62133 UC62133 3.5 TOPR =25℃ C L=10 µF (tantalum) 3.35 IOUT=1mA 3.30 Output Voltage, VOUT (V) Output Voltage, V OUT (V) 3.40 100mA 500 mA 3.25 3.20 3.15 4 5 Input Voltage, VIN (V) TOPR =25℃ C L=10µF (tantalum) 3.3 IOUT=1mA 3.1 500mA 2.9 100 mA 2.7 2.5 6 2.8 3.3 3.8 Input Voltage, V IN (V) Output Voltage, V OUT (V) Output Voltage,V OUT (V) Output Voltage, V OUT (V) 3 Output Voltage, V OUT (V) CMOS IC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 13 QW-R502-028.D UC621XX CMOS IC TYPICAL CHARACTERISTICS(Cont.) Input/Output Differential, VDIFF (V) Input/Output Differential, VDIFF (V) Input/Output Differential, VDIFF (V) Input/Output Differential, VDIFF ( V ) (3) INPUT/OUTPUT VOLTAGE DIFFERENTIAL vs. OUTPUT CURRENT (4) SUPPLY CURRENT vs. INPUT VOLTAGE UC62133 50 40 40 30 Supply Current, Iss (µA) Supply Current, Iss (µA) UC62130 50 85℃ TOPR =25 ℃ -20℃ 20 10 0 3 4 5 6 Input Voltage, VIN (V) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 30 85℃ TOPR =25 ℃ -20℃ 20 10 0 3 4 5 6 Input Voltage, VIN (V) 8 of 13 QW-R502-028.D UC621XX TYPICAL CHARACTERISTICS(Cont.) Supply Current, Iss (µA) SupplyCurrent, Iss (µA) CMOS IC Output Voltage, V OUT (V) Output Voltage, V OUT (V) Output Voltage, V OUT (V) Output Voltage, V OUT (V) (5) OUTPUT VOLTTAGE vs. AMBIENT TEMPERATURE UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9 of 13 QW-R502-028.D UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Output Voltage, V OUT (V) Input Voltage, V IN (V) Supply Current, Iss (µA) Supply Current, Iss (µA) Supply Current, Iss (µA) SupplyCurrent, Iss (µA) Output Voltage, V OUT (V) Input Voltage, VIN (V) UC621XX CMOS IC TYPICAL CHARACTERISTICS(Cont.) (6) SUPPLY CURRENT vs. AMBIENT TEMPERATURE (7) INPUT TRANSIENT RESPONSE QW-R502-028.D 10 of 13 UC621XX CMOS IC TYPICAL CHARACTERISTICS(Cont.) UC62133 UC62133 6 IOUT =10mA CL=10µF (tantalum) 5 3.7 6 3.6 5 Input Voltage 3.7 3.6 Input Voltage 3.5 4 3.5 3.4 3 3.4 2 3.3 2 3.3 1 3.2 1 3.2 4 3 Output Voltage Output Voltage Input Voltage, V IN (V) Input Voltage, V IN (V) Output Voltage, V OUT (V) Time (0.4msec /div) Output Voltage, V OUT (V) Time (0.4msec /div) UC62150 Input Voltage 5.3 5.2 6 5.1 5 8 5.4 Output Voltage 4 5.0 3 4.9 Time (0.4 msec/div) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Input Voltage, V IN (V) 7 IOUT =10mA CL=10µF (tantalum) UC62150 Output Voltage, V OUT (V) 8 Input Voltage, V IN (V) IOUT =100mA CL=10µF (tantalum) 7 IOUT =100 mA CL=10µF (tantalum) Input Voltage 5.4 5.3 6 5.2 5 5.1 Output Voltage 4 5.0 3 4.9 Output Voltage, VOU T (V) Time (0.4msec/div) 11 of 13 QW-R502-028.D UC621XX CMOS IC TYPICAL CHARACTERISTICS(Cont.) (8) LOAD TRANSIENT RESPONSE UC62130 800 Output Voltage 3.00 600 400 2.95 300mA Output Current 2.90 1mA 2.85 200 0 VIN =4.3V, C L=10µF (tantalum) 800 3.35 Output Voltage 400 3.25 300mA 1mA 3.15 UC62150 600 400 3.95 300mA 3.90 Output Current 1mA 3.85 200 0 Output Voltage, VOUT (V) Output Voltage 5.10 1000 Output Voltage, I OUT (mA) Output Voltage, V OUT (V) 4.00 0 Time (10msec/div) 800 4.05 200 Output Current 3.20 UC62140 VIN =5V, CL=10µF (tantalum) 600 3.30 Time (10msec/div) 4.10 1000 VIN =6V, CL=10µF (tantalum) Output Voltage 5.05 1000 800 5.00 600 4.95 400 300mA Output Current 4.90 200 1mA 4.85 Output Voltage, I OUT (mA) 3.05 3.40 Output Voltage, I OUT (mA) 1000 Output Voltage, V OUT (V) VIN =4.0V, C L=10µF (tantalum) Output Voltage, I OUT (mA) Output Voltage, V OUT (V) 3.10 UC62133 0 Time (10msec/div) Time (10 msec/div) (9) RIPPLE REJECTION RATE UC62133 UC62130 60 Ripple Rejection Rate, RR (dB) Ripple Rejection Rate, RR (dB) 60 50 40 30 20 10 VIN =4.0VDC+0.5VP-PAC IOUT = 200mA, CL =10μF (tantalum) 0.1 1 10 Ripple Frequency, f (kHz) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 40 30 20 10 0 0 0.01 50 VIN =4.3VDC+0.5VP-PAC IOUT = 200mA, CL=10μF (tantalum) 0.01 0.1 1 10 Ripple Frequency, f (kHz) 12 of 13 QW-R502-028.D UC621XX CMOS IC TYPICAL CHARACTERISTICS(Cont.) UC62140 UC62150 60 Ripple Rejection Rate, RR (dB) Ripple Rejection Rate, RR (dB) 60 50 40 30 20 10 VIN = 5VDC+0.5VP-PAC IOUT =200mA, CL=10μF (tantalum) 0 50 40 30 20 10 0 0.01 0.1 1 Ripple Frequency, f (kHz) 10 VIN = 6VDC+0.5VP-PAC IOUT = 200mA, CL=10μF (tantalum) 0.01 0.1 1 Ripple Frequency, f (kHz) 10 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 13 of 13 QW-R502-028.D